43results about How to "Excessive abrasion" patented technology

The invention provides a composition having laser engraving properties, comprising a host material and an effective amount of a laser enhancing additive. The laser enhancing additive comprises a first quantity of least one of copper potassium iodide (CuKI3) or Copper Iodide (CuI), and a second quantity at least one substance selected from the group consisting of zinc sulfide (ZnS), barium sulfide (BaS), alkyl sulfonate, and thioester. The composition can be engraved with grayscale images by an Nd:Yag laser and can be added to laminates or coatings. The composition can be used during the manufacture of many articles of manufacture, including identification documents.

The present invention provides a refrigerating machine oil, a compressor oil composition, a hydraulic oil composition, a metalworking oil composition, a heat treating oil composition, a lubricating oil composition for machine tools and a lubricating oil composition which comprise a lubricating oil base oil having % CA of not more than 2, % CP / % CN of not less than 6 and an iodine value of not more than 2.5.

The invention provides a composition having laser engraving properties, comprising a host material and an effective amount of a laser enhancing additive. The laser enhancing additive comprises a first quantity of least one of copper potassium iodide (CuKI3) or Copper Iodide (CuI), and a second quantity at least one substance selected from the group consisting of zinc sulfide (ZnS), barium sulfide (BaS), alkyl sulfonate, and thioester. The composition can be engraved with grayscale images by an Nd:Yag laser and can be added to laminates or coatings. The composition can be used during the manufacture of many articles of manufacture, including identification documents.

A medical device such as a tube or a balloon including wall structure with multiple layers. The wall structure can distribute stress, resulting in reduced defect propagation and failure.

A bump-activated trimmer head for a rotary trimmer of the type that utilizes wound trimmer line to cut vegetation is provided. The rotary trimmer has a shaft defining a rotation axis. The trimmer head includes a housing attached to the rotary shaft of the rotary trimmer and has at least a pair of opposed eyelets through which the trimmer line is discharged for cutting the vegetation. The trimmer head also includes a spool encased within the housing and having a passageway for the trimmer line, the passageway having opposed ends and extending from one side of the spool to an opposite side. The opposed ends of the passageway are alignable with the opposed eyelets of the housing. The trimmer head further includes an indexing knob external to the housing and operatively connected to the spool for turning the spool for the purpose of winding the trimmer line onto the spool. Finally, the trimmer head includes a bump knob rotating about the same rotation axis as the shaft, wherein the bump knob is operationally connected to the spool, but is rotationally independent of the shaft, the housing and the spool.

Helical gears, which are provided for a sun gear, planet gears, and an internal gear, have helix angles θ of not less than 25 degrees and not more than 45 degrees. Pawls provided for lock sections and internal gear lock receiving sections of the internal gear have rising angles γ, respectively, that satisfy the relational expression, 0≦tan γ<(η·di) / {dp·tan(90−α)}, wherein α is the helix angle of the sun gear, η is the screw efficiency of the sun gear as a sliding screw, dp is the pitch circle diameter of the sun gear, and di is an outer diameter of the internal gear defining a center of application of torque of the pawls.

A spacer type solid lubricating bearing disposing a spacer comprising a solid lubricating material, for example, graphite between each of rolling elements is proposed. A solid lubricating rolling bearing is provided with an inner ring, an outer ring, rolling elements, spacers of a material containing a solid lubricant comprising a selected material, and a cage with a pocket for accommodating at least one spacer and one rolling element as a unit.

In a bonnet structure according to the present invention, a bonnet flange 52 extending inward from an inner peripheral surface of a bonnet 5 is positioned farther toward a first direction, which is opposite in a vehicle longitudinal direction to a rotary shaft 51 for the bonnet 5, than shroud flanges 82 extending outward from side surfaces of a shroud main body 81 when the bonnet 5 is located at a closed position. A first elastic sealing member 53 mounted to the bonnet flange 52 is brought from the first direction into contact with anteroposterior contact surfaces 82a of the shroud flanges 82 that face to the first direction X1 when the bonnet 5 is rotated about the rotary shaft 51 from the opened position to the closed position. It is possible to effectively prevent an excessive abrasion and a detachment of elastic sealing members for sealing a gap between the bonnet and the shroud.

A bonnet structure including a bonnet flange extending inward from an inner peripheral surface of a bonnet is positioned farther toward a first direction, which is opposite in a vehicle longitudinal direction to a rotary shaft for the bonnet, than shroud flanges extending outward from side surfaces of a shroud main body when the bonnet is located at a closed position. A first elastic sealing member mounted to the bonnet flange is brought from the first direction into contact with anteroposterior contact surfaces of the shroud flanges that face to the first direction when the bonnet is rotated about the rotary shaft from the opened position to the closed position. It is possible to effectively prevent an excessive abrasion and a detachment of elastic sealing members for sealing a gap between the bonnet and the shroud.

A display device with multiple low temperature diamond coatings, including a substrate as a base; an anode layer residing on the diamond substrate for emitting holes; a hole drift layer that includes a doped diamond coating residing on the anode layer; an emissive layer for emitting light and residing on the hole drift layer. The display device also includes an electron transport layer that includes a doped diamond coating residing on the light emitting layer; a cathode layer, residing on the electron transport layer, for emitting electrons that will drift towards the light emitting layer; and a diamond coated encapsulation layer for sealing the display device from atmospheric moisture; wherein the multiple low temperature diamond coatings are all formed below 750° C. on the display device.

Provided herein are methods and compositions for forming a coating on the external surface of a solid chocolate or chocolate-coated product. The method comprises applying at least one layer of a coating composition comprising a solvent selected from water, ethanol, and isopropanol, or any combination thereof and one or more film forming agents to the external surface of the product, and then drying the coating composition to provide a dried coating or film on the external surface of the chocolate. The dried coating renders the external surface of the chocolate more resistant to abrasion or scuffing during processing, packaging, storage, and / or transport. The coating composition of the present invention cures or dries in 30 minutes or less. In certain embodiments, the film or coating cures in 15 minutes or less. In certain embodiments, the film or coating cures in 10 minutes or less.

A washer is for a hinge assembly. The hinge assembly includes a shaft. The washer is placed around the shaft. The engagement between the washer and the shaft is a clearance fit. By the clearance engagement between the washer and the main shaft, the mechanism efficiency is greatly improved.

The invention relates to a cooking utensil comprising a hollow bowl with a base and a side wall rising from the base, and including at least one fragile area. The bowl has a concave inner surface for receiving food, as well as a convex outer surface. The utensil is coated successively, from the bowl, with a hard base and a nonstick coating, which covers the hard base and includes at least one layer containing at least one fluorocarbon resin. The hard base has a layer that is at least broken at the fragile area. The invention also relates to a method for producing such a utensil.

A slide guiding device in a machine tool includes slide guiding surfaces provided on a bed, sliding surfaces provided on a column, which is guided on the bed for movement on the same, and movable on the slide guiding surfaces, oil grooves each with a first supply hole for supplying lubrication oil to contact surface areas between the sliding surfaces and the slide guiding surfaces, and oil pockets formed independently of the oil grooves for retaining the lubrication oil supplied to the contact surface areas between the sliding surfaces and the slide guiding surfaces.

An optical connector according to the present invention has a ferrule body provided with a fiber positioning hole, a pair of guide holes into which guide pins are inserted, and a connecting end face in which ends of the fiber positioning hole and guide holes open. A chamfer portion equivalent to a part of a surface of a body of revolution is formed at each guide hole on the connecting end face side. Further, the connecting end face is formed at an angle relative to a plane normal to the center axes of the pair of guide holes. In this structure, the slope of the connecting end face can suppress degradation of connection loss, and the provision of the chamfer portions can facilitate insertion of the guide pins, prevent damage of the connecting end face due to the guide pins, and also suppress degradation of connection loss due to the damage.

A washer is for a hinge assembly. The hinge assembly includes a shaft. The washer is placed around the shaft. The engagement between the washer and the shaft is a clearance fit. By the clearance engagement between the washer and the main shaft, the mechanism efficiency is greatly improved.

A slide guiding device in a machine tool includes slide guiding surfaces provided on a bed, sliding surfaces provided on a column, which is guided on the bed for movement on the same, and movable on the slide guiding surfaces, oil grooves each with a first supply hole for supplying lubrication oil to contact surface areas between the sliding surfaces and the slide guiding surfaces, and oil pockets formed independently of the oil grooves for retaining the lubrication oil supplied to the contact surface areas between the sliding surfaces and the slide guiding surfaces.

A bump-activated trimmer head for a rotary trimmer of the type that utilizes wound trimmer line to cut vegetation, the trimmer having a rotary shaft defining a rotation axis, a housing attached to the rotary shaft, at least a pair of opposed eyelets through the housing for receiving the trimmer line, a spool encased within the housing and having a passageway for the trimmer line, the opposed ends of the passageway being alignable with the opposed eyelets of the housing. The trimmer head further includes an indexing knob external to the housing and operatively connected to the spool for turning the spool so as to wind the trimmer line onto the spool, and a separate bump knob rotating about the same rotation axis as the shaft, wherein the bump knob is operationally connected to the spool, but is rotationally independent of the shaft, the housing and the spool.

A feed device for a high-pressure roller press for the high-pressure comminution of material to be ground, the feed device feeding the material to be ground in a controlled manner into the roller nip between two rollers of the high-pressure roller press. The feed device has at least two rotary valves, the position of which is variable independently of each other. In a refinement of the invention, the feed device also has a shaft which is variable in height above the roller nip. By means of the rotary valves which are variable independently of each other and by means of the height-variable shaft, the feeding behavior of the feed device can be varied during the starting of the high-pressure roller press and during the operation of the high-pressure roller press in order thereby to prevent the high-pressure roller press from vibrating and to ensure optimum operation of the high-pressure roller press.

A carrier is supported by a case via a bearing. The bearing comprises an inner race, an outer race, rollers, and a retainer. The inner race has a tapered outer peripheral surface, and is fixed to a carrier. The outer race has a tapered inner peripheral surface facing the outer peripheral surface of the inner race, and is fixed to the case. The rollers is disposed between the inner race and the outer race. An end part of the retainer having a larger diameter makes contact with the case via a first member. The larger diameter end part of the retainer makes contact with the case via a second member. By the retainer making contact with the case and the carrier via the first member and the second member, the retainer can reduce friction compared to when making direct contact with the case and the carrier.

A process for grinding workpieces is obtained which includes attaching honing stones to a tool, each of the honing stones including grinding particles and an electroconductive connection for fixing the grinding particles to each other; grinding the workpieces with the honing stones by applying a honing liquid having substantially no electroconductive property to a region between the workpiece and the honing stones, the workpieces being successively ground during a series of processing periods, while interposing non-processing periods between the processing periods, each of the workpieces being ground in one of the processing periods; and performing an electrolytic dressing with respect to the honing stones by using an electrode provided to face the honing stones with a space therebetween, a voltage being applied between the honing stones and an electrode in the presence of an electroconductive liquid in the space between the honing stones and the electrode, the electrolytic dressing being carried out during the non-processing periods.

The present invention provides a refrigerating machine oil, a compressor oil composition, a hydraulic oil composition, a metalworking oil composition, a heat treating oil composition, a lubricating oil composition for machine tools and a lubricating oil composition which comprise a lubricating oil base oil having % CA of not more than 2, % CP / % CN of not less than 6 and an iodine value of not more than 2.5.

A doctor bed is provided for holding a circularly cylindrical metering rod, including a housing of a homogenous material, which is designed with a cross section at right angles to the cylinder longitudinal axis of the metering rod and has a circularly cylindrical recess which surrounds the metering rod with a form fit over at least 180°. The doctor bed is arranged on a machine processing a moving material web, there being arranged on the housing, in the region of the recess, at least one groove running parallel to the cylinder longitudinal axis of the metering rod. A wiping strip is arranged detachably between the metering rod and the doctor bed.

A grinder has first and second body parts rotatable to each other. The first and second body parts engage the outer and inner burrs, respectively. A supporting flange in the second body part forms a seat to receive the outer burr. The outer burr is pressed toward the supporting flange to localize the outer burr against undesirable forces generated during grinding. A ring-shaped plate is sandwiched between the supporting flange and the outer burr. The outer burr presses on a bearing surface of the plate. The bearing surface is more resistant to abrasion than the supporting flange, advantageously reducing wear debris generation due to abrasion by the outer burr. Furthermore, a shaft engaging the inner burr is shaped as a triangular column for more effectively transmitting a received torque to the inner burr, allowing a plastic shaft to be used so as to reduce the manufacturing cost.

Helical gears, which are provided for a sun gear, planet gears, and an internal gear, have helix angles θ of not less than 25 degrees and not more than 45 degrees. Pawls provided for lock sections and internal gear lock receiving sections of the internal gear have rising angles γ, respectively, that satisfy the relational expression, 0 ≦tan γ<(η·di) / {dp·tan(90−α)}, wherein α is the helix angle of the sun gear, η is the screw efficiency of the sun gear as a sliding screw, dp is the pitch circle diameter of the sun gear, and di is an outer diameter of the internal gear defining a center of application of torque of the pawls.

A process for grinding workpieces is obtained which includes attaching honing stones to a tool, each of the honing stones including grinding particles and an electroconductive connection for fixing the grinding particles to each other; grinding the workpieces with the honing stones by applying a honing liquid having substantially no electroconductive property to a region between the workpiece and the honing stones, the workpieces being successively ground during a series of processing periods, while interposing non-processing periods between the processing periods, each of the workpieces being ground in one of the processing periods; and performing an electrolytic dressing with respect to the honing stones by using an electrode provided to face the honing stones with a space therebetween, a voltage being applied between the honing stones and an electrode in the presence of an electroconductive liquid in the space between the honing stones and the electrode, the electrolytic dressing being carried out during the non-processing periods.