Stirrer assembly

Abstract

An agitator assembly, the agitator assembly comprising: an inner member comprising a bearing oriented along a central axis; an outer member including a housing disposed at least partially outside the inner member and concentric with the inner member; and at least one snap ring disposed radially between the inner member and the outer member, the at least one snap ring comprising: a snap ring body comprising an open annular body defining an aperture oriented along the central axis, where the snap ring body comprises a substrate and a polymer layer covering the substrate.

Description

Technical Field

[0001] The present disclosure relates generally to snap rings, and in particular, to snap rings for improving noise and vibration within assemblies. Background Art

[0002] Typically, a retaining ring constrains relative movement to a desired motion and reduces friction between adjacent parts. One type of retaining ring may be located in a gap between an outer surface of an internal component and an inner surface of a bore of an external component within an assembly. Exemplary assemblies may include blenders, mixers, food processors, or other assemblies known in food preparation applications. Sometimes, it is desirable to have less noise, harshness, and vibration across components in such an assembly, such as an internal component (such as a shaft or bearing) and an external component (such as a housing). Therefore, there is a continuing need for improved retaining rings that provide improved noise, harshness, and vibration characteristics while maintaining a longer life for the assembly. Utility Model Content

[0003] Many different aspects and embodiments are possible. Describe some of these aspects and embodiments below. After reading this specification, those skilled in the art will recognize that those aspects and embodiments are only illustrative, and do not limit the scope of the present invention. Embodiment can be according to any one or more embodiments in the embodiment listed below.

[0004] Embodiment 1: An agitator assembly, comprising: an internal component, the internal component including a bearing oriented along a central axis; an external component, the external component including a shell at least partially disposed outside the internal component and concentric with the internal component; and at least one retaining ring, the at least one retaining ring radially disposed between the internal component and the external component, the at least one retaining ring comprising: a retaining ring body, the retaining ring body including an open annular body defining an orifice oriented along the central axis, wherein the retaining ring body includes a base and a polymer layer covering the base.

[0005] Embodiment 2: The agitator assembly of Embodiment 1, wherein the base of the clasp body comprises metal.

[0006] Embodiment 3: The agitator assembly of Embodiment 2, wherein the metal comprises stainless steel, spring steel, or carbon steel.

[0007] Embodiment 4: The agitator assembly of any preceding embodiment, wherein the polymer layer comprises a polymer.

[0008] Embodiment 5: An agitator assembly according to embodiment 4, wherein the polymer layer comprises polyketone, polyaramid, thermoplastic polyimide, polyetherimide, polyphenylene sulfide, polyethersulfone, polysulfone, polyphenylsulfone, polyamideimide, ultra-high molecular weight polyethylene, thermoplastic fluoropolymer, polyamide, polybenzimidazole, elastomer or any combination thereof.

[0009] Embodiment 6: The agitator assembly of Embodiment 4, wherein the polymer layer comprises a fluoropolymer.

[0010] Embodiment 7: The agitator assembly of Embodiment 6, wherein the polymer layer comprises polytetrafluoroethylene.

[0011] Embodiment 8: The agitator assembly of any preceding Embodiment, wherein the collar further comprises an adhesive layer disposed between the substrate and the polymer layer.

[0012] Embodiment 9: An agitator assembly according to embodiment 8, wherein the adhesive layer comprises at least one of a fluoropolymer, an epoxy resin, a polyimide resin, a polyether / polyamide copolymer, ethylene vinyl acetate, ethylene tetrafluoroethylene (ETFE), an ETFE copolymer, a perfluoroalkoxy (PFA), or any combination thereof.

[0013] Embodiment 10: The agitator assembly of any preceding Embodiment, wherein the polymer layer has a thickness between 50 and 1000 microns.

[0014] Embodiment 11: The agitator assembly of any of the preceding Embodiments, wherein the annular body comprises a first major surface and a second major surface, the first major surface and the second major surface having a thickness disposed therebetween along the central axis.

[0015] Embodiment 12: The agitator assembly of Embodiment 11, wherein the annular body has a thickness in a range between 0.5 mm and 1 mm.

[0016] Embodiment 13: The agitator assembly of any of the preceding Embodiments, wherein the annular body includes a first circumferential end and a second circumferential end defining an opening in the annular body.

[0017] Embodiment 14: The agitator assembly of Embodiment 13, wherein at least one of the first circumferential end portion or the second circumferential end portion comprises a projection defining a projection aperture oriented along the central axis.

[0018] Embodiment 15: The agitator assembly of Embodiment 14, wherein the protrusion protrudes inward in a radial direction.

[0019] Embodiment 16: The agitator assembly of Embodiment 14, wherein the protrusion is at least partially arcuate.

[0020] Embodiment 17: The agitator assembly of any preceding Embodiment, wherein the annular body has an inner diameter in a range between 5 mm and 10 mm.

[0021] Embodiment 18: The agitator assembly of any preceding Embodiment, wherein the annular body has an outer diameter in a range between 8 mm and 15 mm.

[0022] Embodiment 19: The blender assembly of any preceding Embodiment, wherein at least one of the housing or the bearing is operatively connected to a plurality of blades.

[0023] Embodiment 20: The agitator assembly of any preceding embodiment, wherein the at least one snap ring comprises a plurality of snap rings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present disclosure may be better understood, and its numerous features and advantages made apparent to those skilled in the art by referencing the accompanying drawings.

[0025] Figure 1 A method of producing a clasp according to an embodiment is included;

[0026] Figure 2A includes a cross-sectional view of a composite material that can be formed into a clasp according to an embodiment;

[0027] Figure 2B includes a cross-sectional view of a composite material that can be formed into a clasp according to an embodiment;

[0028] Figure 2C includes a cross-sectional view of a composite material that can be formed into a clasp according to an embodiment;

[0029] Figure 3A includes a top perspective view of a snap ring according to embodiments described herein;

[0030] Figure 3B includes a top perspective view of a snap ring according to embodiments described herein;

[0031] Figure 3C Included is a top perspective view of a snap ring according to embodiments described herein.

[0032] Figure 3DIncluded is a top perspective view of a snap ring according to embodiments described herein.

[0033] Figure 4 a top perspective view of a snap ring included within an assembly according to embodiments described herein;

[0034] Figure 5A including a side view of an agitator assembly according to embodiments described herein;

[0035] Figure 5B a top, unassembled view of a retaining ring included in an agitator assembly according to embodiments described herein;

[0036] Figure 6 Included is a graph of noise reduction [dB] for agitator assemblies according to embodiments herein relative to agitator assemblies known in the art.

[0037] Those skilled in the art will recognize that the elements in the drawings are illustrated for simplicity and clarity and are not necessarily drawn to scale. For example, the dimensions of some elements in the drawings may be exaggerated relative to other elements to help improve understanding of the embodiments of the present invention. The use of the same reference numerals in different drawings indicates similar or identical items. DETAILED DESCRIPTION

[0038] The following description in conjunction with the accompanying drawings is provided to help understand the teachings disclosed herein. The following discussion will focus on the specific implementation and implementation scheme of this teaching. This focused discussion is provided to help describe the teaching and should not be interpreted as limiting the scope or applicability of the teaching. However, other embodiments may be used based on the teachings disclosed in this application.

[0039] The terms "comprises," "includes," "has," or any other variation thereof, are intended to cover a non-exclusive inclusion. For example, a method, article, or apparatus that includes a list of features is not necessarily limited to only those features but may include other features not expressly listed or inherent to such method, article, or apparatus. Furthermore, unless expressly stated to the contrary, "or" refers to an inclusive or and not an exclusive or. For example, condition A or B is satisfied by any of the following: A is true (or exists) and B is false (or does not exist), A is false (or does not exist) and B is true (or exists), and both A and B are true (or exist).

[0040] In addition, "a" or "an" is used to describe elements and components described herein. This is done merely for convenience and to give a general sense of the scope of the present invention. This description should be understood to include one, at least one, or the singular also includes the plural, and vice versa, unless otherwise expressly indicated. For example, when a single embodiment is described herein, more than one embodiment may be used in place of the single embodiment. Similarly, where more than one embodiment is described herein, a single embodiment may be used in place of the more than one embodiment.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The materials, methods, and examples are illustrative only and not restrictive. To the extent not described herein, many details regarding specific materials and processing actions are conventional and can be found in textbooks and other sources in the field of clasps and clasps assemblies.

[0042]

[0006] Embodiments described herein generally relate to clasps and methods of forming and using clasps in assemblies.In certain embodiments, a clasp can have an annular clasp body including a substrate and a polymer layer overlying the substrate.

[0043] Embodiments of the present invention may include an agitator assembly comprising: an inner member comprising a bearing oriented along a central axis; an outer member comprising a housing at least partially disposed outside of and concentric with the inner member; and at least one snap ring radially disposed between the inner member and the outer member, the at least one snap ring comprising:

[0044] For illustration purposes, Figure 1 The forming process 10 may include a first step 12 of providing a base material, a second step 14 of coating the base material with a low friction coating to form a composite material, and a third step 16 of forming the composite material into a captive ring.

[0045] Referring to the first step 12, the matrix material can be a substrate. In one embodiment, the substrate can at least partially comprise a metal. According to certain embodiments, the metal can include iron, copper, titanium, tin, aluminum, their alloys, or can be another type of material. More specifically, the substrate can at least partially comprise steel, such as stainless steel, carbon steel, or spring steel. For example, the substrate can at least partially comprise 301 stainless steel. 301 stainless steel can be annealed, 1 / 4 hard, 1 / 2 hard, 3 / 4 hard, or fully hard. In addition, the steel can include stainless steel containing chromium, nickel, or a combination thereof. A specific stainless steel is 301 stainless steel. The substrate can include a woven mesh or an expanded metal mesh. Alternatively, the woven mesh can be a woven polymer mesh. In another embodiment, the substrate can include no mesh or grid. The substrate can include a conductive material.

[0046] In various embodiments, the substrate can be spring steel. The spring steel substrate can be annealed, 1 / 4 hard, 1 / 2 hard, 3 / 4 hard, or full hard. The spring steel substrate can have a tensile strength of not less than 600 MPa, such as not less than 700 MPa, such as not less than 750 MPa, such as not less than 800 MPa, such as not less than 900 MPa, or such as not less than 1000 MPa. The spring steel substrate can have a tensile strength of not more than 1500 MPa, such as not more than 1250 MPa.

[0047] Figure 2A An illustration of a composite material 1000 that can be formed according to the first step 12 and the second step 14 of the forming process 10 for producing a clasp according to the above-described embodiment is included. For illustrative purposes, Figure 2A 14. The composite material 1000 is shown in a layer-by-layer configuration after the second step 14. In various embodiments, the composite material 1000 may include a substrate 1119 (i.e., the base material provided in the first step 12) and a polymer layer 1104 (i.e., the low friction coating applied in the second step 14). Figure 2A , polymer layer 1104 can be coupled to at least a portion of substrate 1119. In a particular embodiment, polymer layer 1104 can be coupled to a surface of substrate 1119 to form a low-friction interface with another surface of another component. Polymer layer 1104 can be coupled to a radially inner surface of substrate 1119 to form a low-friction interface with another surface of another component. Polymer layer 1104 can be coupled to a radially outer surface of substrate 1119 to form a low-friction interface with another surface of another component.

[0048] In various embodiments, the polymer layer 1104 may comprise a low-friction material. The low-friction material may comprise, for example, a polymer such as a polyketone, a polyaramid, a polyimide, a polyetherimide, a polyphenylene sulfide, a polyethersulfone, a polysulfone, a polyphenylene sulfone, a polyamide-imide, an ultra-high molecular weight polyethylene, a fluoropolymer, a polyamide, a polybenzimidazole, or any combination thereof. In one example, the polymer layer 1104 comprises a polyketone, a polyaramid, a polyimide, a polyetherimide, a polyamide-imide, a polyphenylene sulfide, a polyphenylene sulfone, a fluoropolymer, a polybenzimidazole, a derivative thereof, or a combination thereof. In a specific example, the low-friction / wear-resistant layer comprises a polymer such as a polyketone, a thermoplastic polyimide, a polyetherimide, a polyphenylene sulfide, a polyethersulfone, a polysulfone, a polyamide-imide, a derivative thereof, or a combination thereof. In another example, the low friction / wear resistant layer comprises a polyketone such as polyetheretherketone (PEEK), polyetherketone, polyetherketoneketone, polyetherketoneetherketone, derivatives thereof, or combinations thereof. In an additional example, the low friction / wear resistant layer can be ultra-high molecular weight polyethylene. Example fluoropolymers include fluorinated ethylene propylene (FEP), polytetrafluoroethylene (PTFE), polyvinylidene fluoride (PVDF), perfluoroalkoxy (PFA), terpolymer of tetrafluoroethylene, hexafluoropropylene, and vinylidene fluoride (THV), polychlorotrifluoroethylene (PCTFE), ethylene tetrafluoroethylene copolymer (ETFE), ethylene chlorotrifluoroethylene copolymer (ECTFE), polyacetal, polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polyimide (PI), polyetherimide, polyetheretherketone (PEEK), polyethylene (PE), polysulfone, polyamide (PA), polyphenylene ether, polyphenylene sulfide (PPS), polyurethane, polyester, liquid crystal polymer (LCP), elastomer, or any combination thereof.Exemplary fluoropolymers include polytetrafluoroethylene (PTFE), modified PTFE (TFM), fluorinated ethylene propylene (FEP), polyvinylidene fluoride (PVDF), perfluoroalkoxy (PFA), terpolymer of tetrafluoroethylene, hexafluoropropylene and vinylidene fluoride (THV), polychlorotrifluoroethylene (PCTFE), ethylene tetrafluoroethylene copolymer (ETFE), ethylene chlorotrifluoroethylene copolymer (ECTFE), EVA, silicone, polyolefin, polycarbonate, HDPE, POE, COC, COP, PMP, FEP, PTFE, FEP (fluorinated ethylene propylene), TFE (tetrafluoroethylene), PFA (perfluoroalkoxy), PVF (polyvinyl fluoride), PVDF (polyvinylidene fluoride), PTFE (polytetrafluoroethylene), PCTFE (polychlorotrifluoroethylene), ETFE (polyethylene tetrafluoroethylene), ECTFE (ethylene chlorotrifluoroethylene copolymer), FFPM / FFKM (perfluoroelastomer), FPM / FKM (chlorotrifluoroethylene vinylidene fluoride), PFPE (perfluoropolyether), MFA (tetrafluoroethylene and perfluoroethylene) fluoromethyl vinyl ether copolymer), CTFE / VDF (chlorotrifluoroethylene-vinylidene fluoride copolymer) and TFE / HFP (tetrafluoroethylene-hexafluoropropylene copolymer), natural polyisoprene rubber (NR), synthetic polyisoprene rubber (IR), polybutadiene rubber (BR), chloroprene rubber (CR), butyl rubber (IIR), halogenated butyl rubber (CIIR, BIIR), styrene-butadiene rubber (SBR), nitrile rubber (NBR) and hydrogenated nitrile rubber (HNBR), ethylene propylene diene monomer (EPM), ethylene terephthalate (ETM ... propylene rubber (EPDM), epichlorohydrin rubber (ECO), polyacrylic rubber (ACM, ABR), silicone rubber (SI, Q, VMQ), fluorosilicone rubber (FSR, FVMQ), fluoroelastomer (FKM, FEPM), perfluoroelastomer (FFKM), polyether block amide (PEBA), chlorosulfonated polyethylene (CSM), ethylene vinyl acetate (EVA), cyclic olefin copolymer, polyolefin elastomer, polypropylene elastomer (PE), elastomer PET, or mixtures thereof, or any combination thereof. Other fluoropolymers, polymers, and blends may be included in the components of the device 100 or any of its components listed herein. In another specific embodiment, the polymer layer 1104 may at least partially comprise polyethylene (PE), or even consist essentially of polyethylene (PE), such as ultra-high molecular weight polyethylene (UHMWPE). In another specific embodiment, the polymer layer 1104 may include a thermoplastic elastomeric hydrocarbon block copolymer, a polyether-ester block copolymer, a thermoplastic polyamide elastomer, a thermoplastic polyurethane elastomer, a thermoplastic polyolefin elastomer, a thermoplastic vulcanizate, an olefin-based copolymer, an olefin-based terpolymer, a polyolefin plastomer, or a combination thereof.In one embodiment, the polymer layer 1104 may comprise a styrene-based block copolymer such as styrene-butadiene, styrene-isoprene, blends or mixtures thereof, or the like. Exemplary styrenic thermoplastic elastomers include triblock styrenic block copolymers (SBCs) such as styrene-butadiene-styrene (SBS), styrene-isoprene-styrene (SIS), styrene-ethylene butylene-styrene (SEBS), styrene-ethylene propylene-styrene (SEPS), styrene-ethylene-ethylene-butadiene-styrene (SEEBS), styrene-ethylene-ethylene-propylene-styrene (SEEPS), styrene-isoprene-butadiene-styrene (SIBS), or combinations thereof. Commercial examples include some grades of Kraton™ and Hybra™ resins. In one embodiment, the device 100 or any component thereof listed herein may comprise an elastomer comprising acrylonitrile-butadiene (NBR), carboxylated nitrile (XNBR), ethylene acrylate (AEM,). ), ethylene propylene rubber (EPR, EPDM), butyl rubber (IIR), chloroprene rubber (CR), fluorocarbon (FKM, FPM), fluorosilicone (FVMQ), hydrogenated nitrile (HNBR), perfluoroelastomer (FFKM), polyacrylate (ACM), polyurethane (AU, EU), silicone rubber (Q, MQ, VMQ, PVMQ), tetrafluoroethylene-propylene (FEPM). The polymer layer 1104 may comprise a solid-based material including lithium soap, graphite, boron nitride, molybdenum disulfide, tungsten disulfide, polytetrafluoroethylene, carbon nitride, tungsten carbide or diamond-like carbon, a metal (such as aluminum, zinc, copper, magnesium, tin, platinum, titanium, tungsten, lead, iron, bronze, steel, spring steel, stainless steel), a metal alloy (including the listed metals), an anodized metal (including the listed metals), or any combination thereof. Depending on the specific embodiment, a fluoropolymer may be used.

[0049] In various embodiments, the polymer layer 1104 may further comprise a filler comprising glass fiber, carbon fiber, silicon, PEEK, aromatic polyester, carbon particles, bronze, fluoropolymer, thermoplastic filler, aluminum oxide, polyamide imide (PAI), PPS, polyphenylene sulfone (PPSO2), LCP, aromatic polyester, molybdenum disulfide, tungsten disulfide, graphite, graphene, expanded graphite, boron nitride, talc, calcium fluoride, or any combination thereof. Additionally, the filler may comprise aluminum oxide, silicon dioxide, titanium dioxide, calcium fluoride, boron nitride, mica, wollastonite, silicon carbide, silicon nitride, zirconium oxide, carbon black, pigment, or any combination thereof. The filler may be in the form of beads, fibers, powder, mesh, or any combination thereof. The filler may be in the form of beads, fibers, powder, mesh, or any combination thereof. The filler may be at least 1 wt %, such as at least 5 wt %, or even 10 wt %, based on the total weight of the polymer layer.

[0050] The substrate 1119 may have a thickness Ts between about 10 microns and about 1500 microns (such as between about 50 microns and about 1000 microns, such as between about 100 microns and about 750 microns, such as between about 150 microns and about 650 microns). In multiple embodiments, the substrate 1119 may have a thickness Ts between about 200 microns and 600 microns. It should also be understood that the thickness Ts of the substrate 1119 can be any value between any minimum and maximum values ​​described above. The thickness of the substrate 1119 can be uniform, that is, the thickness at a first position of the substrate 1119 can be equal to the thickness at a second position along it. The thickness of the substrate 1119 can be non-uniform, that is, the thickness at a first position of the substrate 1119 can be different from the thickness at a second position along it.

[0051] In one embodiment, the polymer layer 1104 may have a thickness T between about 1 micron and about 500 microns, such as between about 10 microns and about 400 microns, such as between about 50 microns and about 350 microns, such as between about 100 microns and about 300 microns. SL In various embodiments, the polymer layer 1104 can have a thickness T between approximately 50 microns and 250 microns. SL It should also be understood that the thickness T of the polymer layer 1104 SLThe thickness of the polymer layer 1104 may be uniform, i.e., the thickness of the polymer layer 1104 at a first location may be equal to the thickness at a second location along the polymer layer 1104. The thickness of the polymer layer 1104 may be non-uniform, i.e., the thickness of the polymer layer 1104 at a first location may be different from the thickness at a second location along the polymer layer 1104. It will be appreciated that different polymer layers 1104 may have different thicknesses. The polymer layer 1104 may cover one major surface of the substrate 1119 as shown, or both major surfaces. The substrate 1119 may be at least partially encapsulated by the polymer layer 1104. That is, the polymer layer 1104 may cover at least a portion of the substrate 1119. An axial surface of the substrate 1119 may be exposed from the polymer layer 1104.

[0052] Figure 2B An illustration of an alternative embodiment of a composite material that can be formed according to the first step 12 and the second step 14 of the forming process 10 for producing a clasp according to the above-described embodiment is included. For illustrative purposes, Figure 2B The layer-by-layer configuration of the composite material 1002 after the second step 14 is shown. According to this embodiment, the composite material 1002 may be similar to Figure 2A The composite material 1000 is different, except that the composite material 1002 may also include at least one adhesive layer 1121 and a polymer layer 1104 (i.e., the low friction coating applied in the second step 14), and the adhesive layer can connect the polymer layer 1104 to the substrate 1119 (i.e., the base material provided in the first step 12).

[0053] Adhesive layer 1121 may comprise any known adhesive material commonly used in the art of snap rings, including but not limited to fluoropolymers, epoxy resins, polyimide resins, polyether / polyamide copolymers, ethylene vinyl acetate, ethylene tetrafluoroethylene (ETFE), ETFE copolymers, perfluoroalkoxy (PFA) or any combination thereof. In addition, the adhesive may include at least one functional group selected from -C=O, -COR, -COH, -COOH, -COOR, -CF2=CF-OR or any combination thereof, wherein R is a cyclic or linear organic group containing 1 to 20 carbon atoms. In addition, the adhesive may include a copolymer. In one embodiment, the hot melt adhesive may have a melting temperature not higher than 250°C, such as not higher than 220°C. In another embodiment, the adhesive may decompose at temperatures higher than 200°C, such as higher than 220°C. In another embodiment, the melting temperature of the hot melt adhesive may be higher than 250°C or even higher than 300°C. The adhesive layer 1121 may have a thickness of about 1 micron to 50 microns, such as about 10 microns to 30 microns. In one embodiment, the hot melt adhesive may have a melting temperature of no greater than 250° C., such as no greater than 220° C. In another embodiment, the adhesive may decompose at temperatures above 200° C., such as above 220° C. In yet other embodiments, the hot melt adhesive may have a melting temperature above 250° C. or even above 300° C.

[0054] Adhesive layer 1121 may have a thickness T between about 1 micron and about 80 microns, such as between about 5 microns and about 50 microns, such as between about 15 microns and about 40 microns. AL In various embodiments, adhesive layer 1121 can have a thickness T between approximately 3 microns and 20 microns. AL In various embodiments, adhesive layer 1121 can have a thickness T between approximately 10 microns and 60 microns. AL It should also be understood that the thickness T of the adhesive layer 1121 AL The thickness of adhesive layer 1121 may be uniform, i.e., the thickness at a first location of adhesive layer 1121 may be equal to the thickness at a second location along the adhesive layer 1121. The thickness of adhesive layer 1121 may be non-uniform, i.e., the thickness at a first location of adhesive layer 1121 may be different from the thickness at a second location along the adhesive layer 1121.

[0055] Figure 2C An illustration of an alternative embodiment of a composite material that can be formed according to the first step 12 and the second step 14 of the forming process 10 for producing a clasp according to the above-described embodiment is included. For illustrative purposes, Figure 2CThe layer-by-layer configuration of the composite material 1003 after the second step 14 is shown. According to this embodiment, the composite material 1003 may be similar to Figure 2B The composite material 1002 is different, except that the composite material 1003 may also include at least one anti-corrosion layer 1704 and 1705 and a damping coating 1125, which may include an adhesion promoter layer 1127 and an elastomer layer 1129, which may be connected to the substrate 1119 (i.e., the base material provided in the first step 12) and the polymer layer 1104 (i.e., the low friction coating applied in the second step 14).

[0056] Substrate 1119 may be coated with anti-corrosion layers 1704 and 1705 to prevent corrosion of composite material 1003 prior to processing. Each of layers 1704 and 1705 may have a thickness of about 1 to 50 microns, such as about 7 to 15 microns. Layers 1704 and 1705 may include phosphates of zinc, iron, manganese, or any combination thereof, or nano-ceramic layers. Additionally, layers 1704 and 1705 may include functional silanes, nano-silane-based primers, hydrolyzed silanes, organosilane adhesion promoters, solvent / water-based silane primers, chlorinated polyolefins, passivated surfaces, commercially available zinc (mechanical / electroplated) or zinc-nickel coatings, or any combination thereof. Anti-corrosion layers 1704 and 1705 may be removed or retained during processing.

[0057] Composite material 1003 may also include a damping coating 1125. Damping coating 1125 may have a thickness of about 1 micron to 500 microns (such as about 50 microns to 400 microns, and such as about 100 microns to 300 microns). Damping coating 1125 may include an adhesion promoter layer 1127 and an elastomer layer 1129. Adhesion promoter layer 1127 may include a phosphate of zinc, iron, manganese, tin, or any combination thereof, or a nanoceramic layer. Adhesion promoter layer 1127 may include a functional silane, a nano-silane-based primer, a hydrolyzed silane, an organosilane adhesion promoter, a solvent / water-based silane primer, a chlorinated polyolefin, a passivated surface, a commercially available zinc (mechanical / electroplated) or zinc-nickel coating, or any combination thereof. Elastomer layer 1129 may be any elastomeric material known in the art, including any of the elastomers listed herein. In addition, elastomer layer 1129 may include rubber, NVR, etc., or any combination thereof. The elastomeric layer 1129 may also include a hardener.

[0058] In one embodiment, Figure 1Under step 14, any layer in the layer on composite material 1000,1002,1003 as described above can be separately arranged in a roller and peeled off therefrom, to be combined together under pressure, at an elevated temperature (hot or cold pressing or rolling), by an adhesive or by any combination thereof. Any layer in the layer of composite material 1000 as described above can be laminated together so that they at least partially overlap each other. Any layer in the layer on composite material 1000,1002,1003 as described above can be applied together using coating technology (such as, for example, physical or vapor deposition, spraying, electroplating, powder coating) or by other chemical or electrochemical techniques. In a specific embodiment, polymer layer 1104 can be applied by a roll-to-roll coating process including, for example, extrusion coating. Polymer layer 1104 can be heated to a molten or semi-molten state and extruded onto the major surface of substrate 1119 by a slot die. In another embodiment, polymer layer 1104 can be cast or molded.

[0059] In one embodiment, a melt adhesive layer 1121 can be used to bond the polymer layer 1104, or any layer, to the substrate 1119 to form a laminate. In one embodiment, any intervening or protruding layers on the materials or composite materials 1000, 1002, 1003 can form a laminate. The laminate can then be cut using a die, press, punch, hydraulic cutting, saw, laser cutting, or can be machined in various ways to form the clasp. Cutting the laminate can produce a cut edge that includes an exposed portion of the substrate 1119.

[0060] In other embodiments, Figure 1 In step 14, any of the layers on the composite materials 1000, 1002, 1003 described above can be applied by coating techniques (such as, for example, physical or vapor deposition, spraying, electroplating, powder coating) or by other chemical or electrochemical techniques. In one embodiment, the polymer layer 1104 can be applied by a roll-to-roll coating process, including, for example, extrusion coating. The polymer layer 1104 can be heated to a molten or semi-molten state and extruded through a slot die onto the major surface of the substrate 1119. In another embodiment, the polymer layer 1104 can be cast or molded.

[0061] Now refer to Figure 1 In the third step 16 of the illustrated forming process 10, forming the composite material 1000, 1002, 1003 into the snap ring may include a cutting operation as described above, according to certain embodiments. In various embodiments, the cutting operation may form a peripheral surface on the snap ring. The cutting operation may define a cutting direction from the first major surface to a second major surface opposite the first major surface, thereby forming the peripheral surface or edge. Alternatively, the cutting operation may define a cutting direction from the second major surface to the first major surface, thereby forming the peripheral surface or edge.

[0062] After the clasp is formed, it can be cleaned to remove any lubricants and oils used during the forming and molding process. Additionally, cleaning can prepare the exposed surface of the substrate for coating application. Cleaning can include chemical cleaning using solvents and / or mechanical cleaning, such as ultrasonic cleaning.

[0063] Turning now to the snap ring formed according to the embodiments described herein, for purposes of illustration, Figure 3A Includes a top view of a snap ring 100 formed from a blank of material or composite material 1000, 1001, 1002, 1003 as described using the above forming process for producing snap rings according to embodiments described herein. For purposes of illustration, Figure 3B A side view of a snap ring 100 formed from a blank of a material or composite material 1000, 1001, 1002, 1003 as described using the above forming process for producing snap rings according to embodiments described herein is shown, which may include a snap ring body 102 oriented about a central axis A. The snap ring body 102 may be formed from a blank as described above and include a base 1119 (e.g., spring steel) that may be bent into an annular (substantially annular) shape about the central axis A, thereby forming the orifice 180. The snap ring body 102 may also include a polymer layer 1104 that conforms to the shape of the annular base 104, as formed from a blank of the composite material 1000, 1001, 1002, 1003 as described above. The snap ring body 102 may also include an annular base 104. The ends of the annular base 104 may not meet (e.g., the annular base may be formed as an open ring), thereby leaving an axial gap 111 circumferentially between the first circumferential end 102A and the second circumferential end 102B. In various embodiments, at least one of the first circumferential end 102A or the second circumferential end 102B includes a protrusion 115A, 115B. In a specific embodiment, at least one of the protrusions 115A, 115B may define a protrusion aperture 117A, 117B oriented along the central axis. In various embodiments, at least one of the protrusions 115A, 115B protrudes inwardly in the radial direction. In various embodiments, at least one of the protrusions 115A, 115B protrudes outwardly in the radial direction. In various embodiments, at least one of the protrusions 115A, 115B may be at least partially arcuate. In various embodiments, at least one of the protruding portions 115A, 115B can be at least partially linear.

[0064] In various embodiments, the captive ring body 102 can include an inner radial edge 103 and an outer radial edge 105. The inner radial edge or the outer radial edge can define the outer peripheral surface of the captive ring 100. The inner radial edge 103 can at least partially define an aperture 180 in the captive ring 100. In some embodiments, the captive ring 100 can also include at least one radial taper 110 disposed along at least one of the inner radial edge 103 or the outer radial edge 105 of the annular base 104.

[0065] In various embodiments, such as Figure 3A As shown in FIG, the collar 100 may have an overall outer radius OR F For the purposes of the embodiments described herein, the outer radius OR of the retaining ring 100 is W is the distance from the center axis A to the outer radial edge 105. According to certain embodiments, the outer radius OR of the snap ring 100 W It may be at least about 1 mm, such as at least about 10 mm or at least about 20 mm or at least about 30 mm or at least about 40 mm or even at least about 50 mm. According to yet other embodiments, the outer radius OR of the collar 100 may be at least about 1 mm, such as at least about 10 mm or at least about 20 mm or at least about 30 mm or at least about 40 mm or even at least about 50 mm. W It may be no greater than about 100 mm, such as no greater than about 50 mm or even no greater than about 25 mm. It will be appreciated that the outer radius OR of the collar 100 W It should also be understood that the outer radius OR of the retaining ring 100 is within the range between any of the minimum and maximum values ​​noted above. W It can be any value between any of the above minimum and maximum values. For example, the outer radius OR of the snap ring 100 W It can be 7.5mm.

[0066] In various embodiments, such as Figure 3A As shown in FIG, the collar 100 may have an overall inner radius IR w For the purposes of the embodiments described herein, the inner radius IR of the retaining ring 100 is W is the distance from the central axis A to the inner radial edge 103. According to certain embodiments, the inner radius IR of the retaining ring 100 is W It may be at least about 1 mm, such as at least about 10 mm or about 20 mm or at least about 30 mm or at least about 40 mm or even at least about 50 mm. According to yet other embodiments, the inner radius IR of the retaining ring 100 is W It may be no greater than about 100 mm, such as no greater than about 50 mm or even no greater than about 25 mm. It will be appreciated that the inner radius IR of the collar 100 is W It should also be understood that the inner radius IR of the retaining ring 100 is within the range between any of the minimum and maximum values ​​noted above. W It can be any value between any of the minimum and maximum values ​​mentioned above. For example, the inner radius IR of the retaining ring 100 isW It can be 4mm. Inner radius IR W It may coincide with the radius of the orifice 180 .

[0067] like Figure 3A As shown, the annular base 104 may include a first axial surface 106 and a second axial surface 107 opposite the first axial surface 106, the first and second axial surfaces being oriented along a central axis A and separated by an axial height. At least one of the first axial surface 106 or the second axial surface 107 may form a major surface of the snap ring 100. The first axial surface 106 may have a polymer layer 1104 formed from the composite materials 1000, 1001, 1002, 1003 described above, conforming to the shape of the annular base 104 having the base 1119. Alternatively or in addition, the second axial surface 107 may have a polymer layer 1104 formed from the composite materials 1000, 1001, 1002, 1003 described above, conforming to the shape of the annular base 104. In other embodiments, the polymer layer 1104 may be laminated to both surfaces of the annular base 104. When viewed in a plane perpendicular to the central axis A, the annular base 104 may have a polygonal, elliptical, circular, semicircular, or substantially circular cross-section.

[0068] In various embodiments, the snap ring 100 may have a specific axial height or thickness T W For the purposes of the embodiments described herein and as Figure 3B As shown, the axial height T of the snap ring 100 W is the distance from the first axial surface 106 to the second axial surface 107. According to certain embodiments, the axial height T of the snap ring 100 is W It may be at least about 0.1 mm, or at least about 0.2 mm, or at least about 0.3 mm, or at least about 0.4 mm, or even at least about 0.5 mm. According to yet other embodiments, the axial height T of the retaining ring 100 is w It may be no greater than about 10 mm, such as no greater than about 5 mm or even no greater than about 1 mm. It should be understood that the axial height T of the retaining ring 100 w It should also be understood that the axial height T of the retaining ring 100 is preferably within the range between any of the minimum and maximum values ​​described above. w It can be any value between any of the minimum and maximum values ​​mentioned above. For example, the axial height T of the snap ring 100 is W It can be 1.3mm.

[0069] For illustration purposes, Figure 3BIncluded is a top view of a snap ring 100 formed from a blank of material or composite material 1000 , 1001 , 1002 , 1003 as described using the above forming process for producing snap rings according to embodiments described herein. Figure 3A The reference numerals are incorporated into Figure 3B and are contemplated to perform in a similar manner, have similar functionality, or have a similar structure unless otherwise indicated. Figure 3B As shown, the ends of the annular base 104 may not meet (e.g., the annular base may be formed as a split ring), thereby leaving an axial gap 111 circumferentially between the first circumferential end 102A and the second circumferential end 102B. In various embodiments, at least one of the first circumferential end 102A or the second circumferential end 102B includes a protrusion 115A, 115B. In specific embodiments, at least one of the protrusions 115A, 115B may define a protrusion aperture 117A, 117B oriented along the central axis. In various embodiments, as Figure 3B As shown, at least one of the protruding portions 115A, 115B protrudes inward in the radial direction. Figure 3B As shown, in various embodiments, at least one of the protruding portions 115A, 115B can be at least partially linear.

[0070] For illustration purposes, Figure 3C Included is a top view of a snap ring 100 formed from a blank of material or composite material 1000 , 1001 , 1002 , 1003 as described using the above forming process for producing snap rings according to embodiments described herein. Figure 3C The reference numerals are incorporated into Figure 3B and are contemplated to perform in a similar manner, have similar functionality, or have a similar structure unless otherwise indicated. Figure 3C As shown, the ends of the annular base 104 may not meet (e.g., the annular base may be formed as a split ring), thereby leaving an axial gap 111 circumferentially between the first circumferential end 102A and the second circumferential end 102B. In various embodiments, at least one of the first circumferential end 102A or the second circumferential end 102B includes a protrusion 115A, 115B. In specific embodiments, at least one of the protrusions 115A, 115B may define a protrusion aperture 117A, 117B oriented along the central axis. In various embodiments, as Figure 3C As shown, at least one of the protruding portions 115A, 115B protrudes outward in the radial direction. Figure 3C As shown, in various embodiments, at least one of the protrusions 115A, 115B can be at least partially arcuate. Figure 3CAs shown, in various embodiments, at least one of the protruding portions 115A, 115B can be at least partially linear.

[0071] For illustration purposes, Figure 3D Included is a top view of a snap ring 100 formed from a blank of material or composite material 1000 , 1001 , 1002 , 1003 as described using the above forming process for producing snap rings according to embodiments described herein. Figure 3D The reference numerals are incorporated into Figure 3B and are contemplated to perform in a similar manner, have similar functionality, or have a similar structure unless otherwise indicated. Figure 3D As shown, the ends of the annular base 104 may not meet (e.g., the annular base may be formed as a split ring), thereby leaving an axial gap 111 circumferentially between the first circumferential end 102A and the second circumferential end 102B. In various embodiments, at least one of the first circumferential end 102A or the second circumferential end 102B includes a protruding portion 115A, 115B. In various embodiments, as Figure 3D As shown, at least one of the protruding portions 115A, 115B protrudes inward in the radial direction. Figure 3D As shown, in various embodiments, at least one of the protrusions 115A, 115B can be at least partially arcuate. Figure 3D As shown, in various embodiments, at least one of the protrusions 115A, 115B can be at least partially linear. In various embodiments, the annular base 104 can include a base protrusion 119. In specific embodiments, the base protrusion 119 can protrude outward in a radial direction. In specific embodiments, as shown Figure 3D As shown, the base protrusion 119 may protrude inwardly in the radial direction. Figure 3D As shown, in various embodiments, the base protrusion 119 can be at least partially arcuate. Figure 3D As shown, in various embodiments, the base projection 119 can be at least partially linear.

[0072] For illustration purposes, Figure 4 A top perspective view of a snap ring within an assembly according to embodiments described herein. It should be understood that Figure 4Corresponding parts between (i.e., parts with the same reference numerals) may be described as having any characteristics or features described with reference to any of the other figures disclosed herein. In various embodiments, the retaining ring 100 may be disposed adjacent to or in contact with an internal component 452 (such as a bearing, a shaft, a side member, a tolerance ring, another structural member, or a combination thereof) in the assembly 450. In various embodiments, the internal component 452 may be a shaft or bearing (e.g., a ball bearing or roller bearing) of an agitator assembly as discussed in more detail below. The assembly 400 may also include an external component 454 (e.g., a bearing, a housing, a side member, another structural member, or a combination thereof) radially disposed outside the internal component 452. In various embodiments, the external component 454 may be a housing of an agitator assembly as discussed in more detail below. In operation, the retaining ring 400 may be located in the axial gap 416 between the two opposing (mating) components 452, 454. In one embodiment, the external component 454 may be adapted to rotate relative to the internal component 452. Snap ring 400 can act as a spring and deform to fit components 452, 454 together with zero spacing between the two components. In another embodiment, inner component 452 can be adapted to rotate relative to outer component 454. Snap ring 100 can be positioned adjacent to or in contact with inner component 452 in assembly 450. In various embodiments, snap ring 400 can be mounted on inner component 452 in assembly 450. Snap ring 400 can be positioned adjacent to or in contact with outer component 454 in assembly 450. In various embodiments, snap ring 400 can be mounted on outer component 454 in assembly 450. In various embodiments, assembly 450 can include multiple snap rings 400, 400'.

[0073] For illustration purposes, Figure 5A Included is a side view of an agitator assembly according to embodiments described herein. Figure 5B A top, unassembled view of a retaining ring included in an agitator assembly according to embodiments described herein. Figures 5A to 5B As shown, the agitator assembly 550 can include a retaining ring 500 interposed between a housing 554 and a bushing / bearing 552 within the agitator assembly 550. The agitator assembly 550 can also include a plurality of blades 560 operatively connected to the retaining ring 500.

[0074] Generally speaking, a method of forming a retaining ring 100 may typically include: providing a blank including a base 1119 and a polymer layer 1104 connected to the base 1119; forming the blank into a retaining ring 100 including an open annular body 102 suitable for contacting at least one of the internal component 552 or the external component 554 within the agitator assembly.

[0075] Figure 6A graph is included showing the noise reduction [dB] of an agitator assembly according to an embodiment of the present invention relative to an agitator assembly known in the art. Sample 1 is an average noise reduction reading for multiple traces of an agitator assembly according to an embodiment of the present invention having an inner component (multiple tolerance rings and bearings) and an outer component (housing) with a retaining ring fitted between the inner component and the outer component. Sample 4 is a noise reduction reading for an agitator assembly according to a conventional agitator assembly having an inner component (bearings) and an outer component (housing) without a retaining ring fitted between the inner component and the outer component. Figure 6 As shown in , a clamping ring according to embodiments herein provides an optimized level of noise reduction [dB] in an agitator assembly that is not found in conventional agitator assemblies.

[0076] Applications of the embodiments include, for example, assemblies of mixers, blenders, food preparation components, or other types of applications. According to specific embodiments herein, the clasp can provide reduced noise / vibration / harshness, reduced wear of the clasp surface and mating components, and reduced component complexity and assembly time, thereby increasing the life of the assembly, the clasp, and its other components, improving visual appearance, and improving effectiveness and performance compared to conventional blender assemblies.

[0077] Note that not all of the above features are required, the area of ​​a particular feature may not be required, and one or more features may be provided in addition to those described. Furthermore, the order in which the features are described is not necessarily the order in which they are installed.

[0078] For clarity, certain features described herein in the context of separate embodiments may also be provided in combination in a single embodiment. Conversely, various features described in the context of a single embodiment for brevity may also be provided individually or in any subcombination.

[0079] The benefits, other advantages, and solutions to problems have been described above with respect to specific embodiments. However, these benefits, advantages, solutions to problems, and any features that may cause any benefit, advantage, or solution to occur or become more significant should not be construed as key, required, or essential features of any or all of the claims.

[0080] The description and illustration of the embodiments described herein are intended to provide a general understanding of the structure of various embodiments. Description and illustration are not intended to be used as a detailed and comprehensive description of all elements and features of the components and systems using the structures or methods described herein. Separate embodiments can also be provided in combination in a single embodiment, and on the contrary, for the sake of brevity, the various features described in the context of a single embodiment can also be provided individually or in any sub-combination. In addition, reference to the values ​​described in the range includes each value within the range. Many other embodiments will be apparent to those skilled in the art only after they have read this specification. Other embodiments can be used and derived from the present disclosure so that structural substitution, logical substitution or any change can be performed without departing from the scope of the present disclosure. Therefore, the present disclosure should be considered to be illustrative and not restrictive.

Claims

1. A stirrer assembly, characterized in that: The agitator assembly comprises: an internal member including a bearing oriented along a central axis; an outer member comprising a housing disposed at least partially exterior to and concentric with the inner member; and at least one snap ring disposed radially between the inner member and the outer member, the at least one snap ring comprising: A clasp body includes an open annular body defining an aperture oriented along the central axis, wherein the clasp body includes a substrate and a polymer layer covering the substrate.

2. The agitator assembly according to claim 1, wherein The base of the clasp body includes metal.

3. The agitator assembly according to claim 2, characterized in that The metal includes stainless steel, spring steel or carbon steel.

4. The agitator assembly according to any one of claims 1 to 3, characterized in that The polymer layer includes a polymer.

5. The agitator assembly according to claim 4, characterized in that The polymer layer comprises polyketone, polyaramid, thermoplastic polyimide, polyetherimide, polyphenylene sulfide, polyethersulfone, polysulfone, polyphenylsulfone, polyamideimide, ultra-high molecular weight polyethylene, thermoplastic fluoropolymer, polyamide, polybenzimidazole, elastomer, or any combination thereof.

6. The agitator assembly according to claim 4, wherein: The polymer layer comprises a fluoropolymer.

7. The agitator assembly according to claim 6, wherein: The polymer layer comprises polytetrafluoroethylene.

8. The agitator assembly according to any one of claims 1 to 3, characterized in that The clasp also includes an adhesive layer disposed between the substrate and the polymer layer.

9. The agitator assembly according to claim 8, wherein The adhesive layer includes at least one of fluoropolymer, epoxy resin, polyimide resin, polyether / polyamide copolymer, ethylene vinyl acetate, ethylene tetrafluoroethylene (ETFE), ETFE copolymer, perfluoroalkoxy (PFA), or any combination thereof.

10. The agitator assembly according to any one of claims 1 to 3, characterized in that The polymer layer has a thickness between 50 microns and 1000 microns.

11. The agitator assembly according to any one of claims 1 to 3, characterized in that The annular body includes a first major surface and a second major surface having a thickness disposed therebetween along the central axis.

12. The agitator assembly according to claim 11, wherein Wherein the annular body has a thickness in the range between 0.5 mm and 1 mm.

13. The agitator assembly according to any one of claims 1 to 3, characterized in that The annular body includes a first circumferential end portion and a second circumferential end portion defining an opening therein.

14. The agitator assembly according to claim 13, wherein At least one of the first circumferential end portion or the second circumferential end portion includes a projection defining a projection aperture oriented along the central axis.

15. The agitator assembly according to claim 14, wherein The protruding portion protrudes inward in a radial direction.

16. The agitator assembly according to claim 14, wherein The protruding portion is at least partially arcuate.

17. The agitator assembly according to any one of claims 1 to 3, characterized in that The annular body has an inner diameter ranging between 5 mm and 10 mm.

18. The agitator assembly according to any one of claims 1 to 3, characterized in that The annular body has an outer diameter in the range between 8 mm and 15 mm.

19. The agitator assembly according to any one of claims 1 to 3, characterized in that At least one of the housing or the bearing is operatively connected to a plurality of blades.

20. The agitator assembly according to any one of claims 1 to 3, characterized in that The at least one snap ring includes a plurality of snap rings.

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