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31 results about "Dumbbell shaped" patented technology

Dumbbell Shapes. Pro dumbbells have a short, cylindrical handle and pancake ends, which are circular with a flat edge. Hex dumbbells have the same basic overall shape as pro dumbbells, but the end caps have six flat sides -- the shape of a hexagon.

Plastic bottle (dumbbell shape)

ActiveCN309761872SDumbbell shapedFood science
1. Name of the product in this design: Plastic bottle (dumbbell shape). 2. Purpose of this design: To be used as a bottle for packaging beverages. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.
Owner:建邺区旺达斋贸易部(个体工商户)

Handheld eyelid massager

PendingCN121152610ARoller massageEye treatmentMeibomian glandDumbbell
The eyelid massager 100 comprises: a handle 102 having a free end 104; and a roller 106 pivotally connected to the free end of the handle. The roller 106 is dumbbell-shaped, the curvature of the outer surface of the roller being matched to the curvature of the closed eye of the user such that during a massage action, the roller 106 comes into contact with the eyelid along the entire length of the eye to press a plurality of meibomian glands associated with the eyelid, promoting release of occluded grease. The handle 102 is Y-shaped 200 at the free end 104 to pivotally retain the roller 106 at both ends 204 by a pair of inwardly extending pins 202 that engage a pair of holes provided on the roller 106. The roller 106 is made of silicone rubber and a curved portion of the outer surface has a plurality of ribs 208.
Owner:OCULAB PTE LTD

Fabricated steel plate composite damping wall considering multi-stage force and design method

The application discloses a novel assembled steel plate composite damping wall considering multistage stress and a design method, wherein the novel assembled steel plate composite damping wall is assembled by connecting steel plates, dumbbell-shaped weakened steel plates, force transmission steel plates welded with studs, concrete plates, L-shaped connecting angle steels and high-strength bolts. The novel assembled steel plate composite damping wall only bears the dumbbell-shaped weakened steel plates under normal use conditions and under small earthquakes, and the concrete plates provide out-of-plane constraints for the novel assembled steel plate composite damping wall; under medium earthquakes and large earthquakes, the external concrete plates start to bear loads, so that the assembled damping wall has sufficient rigidity and bearing capacity. The multistage stress characteristics can guarantee that the structure has good lateral resistance and bearing performance in different loading stages, fully play the mechanical performance of each component, and delay the damage of the structure under the action of earthquakes.
Owner:FUJIAN UNIV OF TECH

A method of cable jacket dumbbell sampling

The present application relates to a kind of cable outer sheath dumbbell sample preparation method, first, the cable outer sheath of stripping is unfolded;Second step, the cable outer sheath in unfolded state is made to pass through cutter and cut off one side surface layer;Third step, the surface layer of the cable outer sheath in unfolded state in which one side surface layer is cut off is shaped on the side of surface layer cut-off, and the dumbbell-shaped cutout matching the dumbbell shape of cable outer sheath is formed, the depth of dumbbell-shaped cutout is above the thickness of cable outer sheath dumbbell;Fourth step, the cable outer sheath in unfolded state with dumbbell-shaped cutout is made to pass through cutter here and cut off sheath middle layer, the part of sheath middle layer located in the surrounding of dumbbell-shaped cutout is taken down, and the taken-down part is cable outer sheath dumbbell.The present application provides a kind of cable outer sheath dumbbell sample preparation machine which can be made into cable outer sheath dumbbell after forming cable outer sheath dumbbell, and provides a kind of new manufacturing method of cable outer sheath dumbbell.
Owner:ZHEJIANG DAYOU INDUSTRIAL CO LTD

Rock dynamic and static tension and compression multi-field coupling test method

The invention discloses a rock dynamic and static tension and compression multi-field coupling test method, and relates to the technical field of rock dynamic load, static load, tension and compression, shearing, rheology, temperature, seepage, chemistry, ultrasonic wave, acoustic emission, resistivity and other multi-field coupling tests. The sample is of a dumbbell-shaped structure with upper and lower end diameters larger than the middle diameter; the method comprises a triaxial axial tensile test, a triaxial compression test, a triaxial dynamic impact test, a dynamic and static triaxial multi-field coupling test at different temperatures and a true triaxial shear seepage coupling test. In the triaxial tensile test process, the end part of the test sample does not need to be glued, the test sample adopts a dumbbell-shaped test sample shape design, the axial tensile force is provided by using a confining pressure loading system and adopting confining pressure, and the axial tensile test of the rock under different confining pressure conditions can be realized.
Owner:INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI +2

Dumbbell-shaped bearing platform concrete temperature control system and dumbbell-shaped bearing platform

The utility model discloses a dumbbell-shaped bearing platform concrete temperature control system and a dumbbell-shaped bearing platform. The dumbbell-shaped bearing platform concrete temperature control system comprises a plurality of cooling pipe layers in the transverse bridge direction, a plurality of cooling pipe layers in the longitudinal bridge direction and a plurality of temperature control monitoring nets used for monitoring the temperature in poured concrete in the bearing platform pouring forming process. And the plurality of transverse bridge direction cooling pipe layers and the plurality of longitudinal bridge direction cooling pipe layers are sequentially arranged at intervals in a staggered manner in the height direction of the bearing platform, so that poured concrete is layered by introduced cooling water, and the whole section of each layer is uniformly cooled. The multiple layers of temperature control monitoring nets are sequentially arranged at intervals in the height direction of the bearing platform so as to be used for layering the temperature in the poured concrete, and multi-measuring-point measurement is conducted on each layer. According to the novel temperature control system, uniform cooling of the internal temperature of the super-thick and super-large bearing platform concrete and effective control of the temperature difference of the internal surface of the large-size concrete can be achieved, temperature cracks caused by the fact that the temperature difference of the local internal surface of the bearing platform concrete is too high are reduced, and it is guaranteed that the dumbbell-shaped bearing platform is smoothly constructed and the construction quality is good.
Owner:CCFEB CIVIL ENG +1

A flatcon shell metal drum component having dumbbell shaped edges and an apparatus for making the same

The present invention relates to a flatcon shell metal drum component having dumbbell shaped edges (100). The present invention also relates to an apparatus for manufacturing a flatcon shell metal drum component having dumbbell shaped edges (100) and a method for manufacturing a flatcon shell metal drum component having dumbbell shaped edges (100). The said flatcon shell metal drum component having dumbbell shaped edges (100) enables shipping of drum parts in dis-assembled condition and reassembling them at a location required, whereby solving the problem of shipping empty drums or barrels in bulk while saving huge shipping costs by optimizing effective use of transport space.
Owner:E CON PACKAGING PVT LTD

Multi-angle rotating extra-high core wall dam gravel-doped clay tensile-fracture test device

The invention discloses a multi-angle rotating ultra-high core wall dam gravel-doped clay tensile-fracture test device which comprises a mold assembly, two groups of adjusting assemblies and two groups of loading assemblies, a dumbbell-shaped cavity is formed in the mold assembly body and is used for preparing and bearing a test soil test piece; the two sets of adjusting assembly bodies are distributed on the two sides of the mold assembly body in a central symmetry mode, each adjusting assembly body comprises a rotatable semicircular disc and a semicircular disc track, the rotatable semicircular discs are coaxially embedded in the inner sides of the semicircular disc tracks, and the semicircular disc tracks are movably connected with the rotatable semicircular discs; and the end part of the mold assembly body is embedded into the inner side of the semicircular disc track and is detachably connected through a mold fixing bolt. The front loading assembly, the front assembly body, the rear loading assembly, the rear assembly body and the mold assembly body are used in cooperation, the operation process is convenient and rapid, the device can be suitable for a uniaxial tensile test, a tensile fracture test, a shear fracture test, a tension-shear fracture test and a compression-shear fracture test at the same time, and the application range is remarkably widened.
Owner:SOUTHEAST UNIV +3

Off-road vehicle damping seat precision forging piece with three-column structure

ActiveCN224130827UResilient suspensionsControl theoryDumbbell shaped
The utility model belongs to the field of automobile chassis parts, and provides a three-column structure off-road vehicle damping seat precision forging piece which comprises a body part and a connecting structure. Wherein the body part forms a columnar structure with a dumbbell-shaped cross section; the connecting structure comprises a first connecting column, a second connecting column and a third connecting column which are integrally forged and formed on the body part, and the height direction of the body part is perpendicular to the height direction of the first connecting column, the height direction of the second connecting column and the height direction of the third connecting column.
Owner:RUIAN HONGXING FORGING CO LTD

Foldable support plate, flexible screen module and foldable electronic device

The application provides a foldable support plate, a flexible screen module and a foldable electronic device. The foldable support plate can be provided with a through groove, and a blind groove can be arranged near the foldable area. The shape of the through groove can be a dumbbell-shaped through groove. The base body of the foldable support plate can be composed of multiple materials. Different materials can correspond to different areas of the foldable support plate. The local plating layer on the foldable support plate can include a nickel sulfamate plating layer and a gold plating layer. An electroplating recess can be arranged in the area corresponding to the local plating layer. The scheme of the application is beneficial to taking into account the lightness, mechanical stability, electromagnetic performance, heat conductivity and the like of the foldable electronic device.
Owner:HUAWEI TECH CO LTD

Segmented tower drum structure and method for offshore wind power

The invention belongs to the technical field of wind power tower drums, and particularly relates to an offshore wind power sectional type tower drum structure and method.The offshore wind power sectional type tower drum structure comprises a first tower drum and a second tower drum, a first cross frame is fixedly installed in the first tower drum, and a second cross frame is fixedly installed in the second tower drum; the first cross frame and the second cross frame are connected through arranged positioning columns and auxiliary positioning assemblies, the bottom of the first tower drum is connected with a plurality of reducing cylinders, the bottoms of the reducing cylinders are connected with hemispheres, and the reducing cylinders and the hemispheres are inserted into dumbbell-shaped grooves formed in the top of the second tower drum. A plurality of arc-shaped elastic metal sheets are fixedly arranged in the dumbbell-shaped groove in the circumferential direction at intervals, the diameter of a circle formed by the edges of the bottoms of the multiple arc-shaped elastic metal sheets is smaller than that of the hemisphere, and a limiting assembly is connected into one side of the hemisphere. And the overall rigidity of the butt joint part of the segmented tower drum is effectively improved.
Owner:SHANGHAI OUYANG OFFSHORE WIND POWER TECH CO LTD

Energy dissipation and seismic resistance dual-function support for rectangular hardwood grooving and dumbbell-shaped mild steel plate clamping and embedding

The invention discloses an energy dissipation anti-seismic dual-function support for rectangular hardwood slotting and dumbbell-shaped mild steel plate clamping and embedding. The support is used for anti-seismic reinforcement of beam-column joints of a wood frame. The support is composed of two rectangular slotted hardwoods, a dumbbell-shaped mild steel plate, mild steel plate long holes, a yield energy dissipation section, a limiting structure, rectangular slotted hardwood glue joint fixing bamboo nails and steel plate pieces welded to the two ends of the dumbbell-shaped mild steel plate by 45 degrees. And the two slotted hardwoods are respectively embedded with half of the thickness of the dumbbell-shaped mild steel plate, then are bonded by latex and are fixed by bamboo nails. Bolt bars penetrate through the round holes in the two ends of the rectangular slotted hardwood and the corresponding long holes in the two ends of the dumbbell-shaped soft steel to form a hardwood round hole-soft steel plate long hole-bolt limiting structure. When the bolt bars slide in the long holes in the two ends of the dumbbell-shaped mild steel plate, the energy dissipation sections are yielded to dissipate energy, and when the bolt bars are limited in the long holes in the two ends of the dumbbell-shaped mild steel plate, the two slotted hardwoods are started through the screws to pull and press to resist shock. The support has the double functions that the mild steel plate dissipates energy under a large earthquake and the mild steel plate and the rectangular hardwood jointly resist earthquake under a huge earthquake.
Owner:KUNMING UNIV OF SCI & TECH

Foldable support plate, flexible display module, and foldable electronic device

This application provides a foldable support plate, a flexible display module, and a foldable electronic device. A through groove may be disposed in a foldable region of the foldable support plate, and a blind groove may be disposed near the foldable region. The through groove may be a dumbbell-shaped through groove. A base of the foldable support plate may be made of a plurality of materials. Different materials may correspond to different regions of the foldable support plate. Local plating of the foldable support plate may include nickel sulfamate plating and gold plating. An electroplated groove may be disposed in a region corresponding to the local plating. The solutions of this application help take into account lightweight, mechanical stability, electromagnetic performance, thermal conductivity, and the like of the foldable electronic device.
Owner:HUAWEI TECH CO LTD

Non-pneumatic tires for in-field irrigation systems

ActiveUS12643345B2Agricultural vehiclesAgricultural vehicle tyresRotational axisClassical mechanics
A non-pneumatic tire for a wheeled tower of an in-field irrigation system has a circular array of hollow cavities within the tire body. In cross-sectional planes lying normally of the rotational axis, each cavity has a circumferentially elongated cross-section of greater circumferential length than radial width. Bulbous and concavely rounded terminuses of each cavity impart a dumbbell shaped cavity profile that omits stress failure points. The cavity width tapers in an axially inward direction toward a midplane of the tire, where the cavity width is narrowest. In use, collapse of the cavity at its narrow midpoint squeezes accumulate mud out from the cavities in self-cleaning fashion. The outer circumference of the tire features sloped areas whose axial measure decreases toward the midplane. In use of the tire, the sloped areas draw mud inwardly toward the midplane and self-fill the ground beneath the tire, and thereby lessening overall rut formation.
Owner:1434822 ALBERTA LTD

Fluororesin composition, molded body, and production method for fluorine resin composition

A fluororesin composition contains a first fluororesin having a thermal history of having been heated to a melting point or higher and a second fluororesin having no thermal history of having been heated to a melting point or higher, in which the first fluororesin and the second fluororesin are non-melt-formable fluororesins, and in a case where a test piece is obtained by compression-molding the fluororesin composition to obtain a preliminary molded body and sintering the preliminary molded body at 380° C. for 2 hours or longer to be formed into a micro-dumbbell shape having a thickness of 0.5 mm and a size of 16 mm×45 mm, a metal elution amount with respect to a total mass of the test piece when the test piece is left to stand in 3.6% by mass hydrochloric acid at 23° C. for 24 hours is 5 ng / g or less.
Owner:AGC INC

An SMA plate damper and its seismic resistance method for self-resetting rocking structures

This invention discloses an SMA plate damper and its seismic resistance method for self-resetting rocking structures. The damper includes an SMA core plate, strip heating units, C-shaped strips, and a buckling restraint plate. The SMA core plate is martensitic and dumbbell-shaped with openings at both ends. The C-shaped strips are arranged on both sides of the SMA core plate along its thickness direction, extending in the same direction as the SMA core plate. Two strip heating units are respectively arranged in the narrow grooves of the two C-shaped strips and are in close contact with the SMA core plate. The C-shaped strips and the buckling restraint plate provide buckling restraint for the SMA core plate. This invention utilizes the unique temperature-performance relationship of SMA material to form a self-reinforcing SMA plate damper. When applied to a self-resetting rocking structure, it can enhance the structure's seismic resistance under the combined action of main and aftershocks.
Owner:SOUTHEAST UNIV

Single-tube cross-brace and dumbbell arch rib connection device and method

The application discloses a single-pipe cross brace and dumbbell-shaped arch rib connecting device and method, wherein the single-pipe cross brace and dumbbell-shaped arch rib connecting device is used for connecting a single-pipe cross brace and a dumbbell-shaped arch rib, the dumbbell-shaped arch rib comprises two circular pipes and two first webs, the two first webs are arranged in parallel and at intervals between the two circular pipes and are connected with the two circular pipes, and the single-pipe cross brace and dumbbell-shaped arch rib connecting device comprises a connecting plate, two second webs and a first reinforcing assembly, the connecting plate is arranged in parallel and at intervals with the first web and is used for connecting the single-pipe cross brace, the two second webs are arranged in parallel and at intervals between the first web and the connecting plate and are connected with the connecting plate, the first web and the circular pipe, and the first reinforcing assembly is connected with the connecting plate, the first web and the second web and is used for improving the connecting strength between the connecting plate, the first web and the second web. The application can solve the problem of high engineering cost caused by the deformation of a double-pipe connecting structure for resisting lateral force transmission in the prior art.
Owner:HUBEI COMM PLANNING & DESIGN INST CO LTD

Anapole metasurfaces and low-power nanoparticle trapping methods thereof

The present application relates to an anapole metasurface and a low-power nanoparticle capturing method thereof, the metasurface comprising a silicon dioxide substrate and a dumbbell-shaped slot metasurface arranged on the surface of the substrate, the dumbbell-shaped slot metasurface being composed of an array of metasurface units, each metasurface unit being composed of silicon material and having a central dumbbell-shaped slot. The dumbbell-shaped slot forms an anapole mode by exciting electric dipole and ring dipole interference cancellation, and localizes the optical field in the central region of the slot to capture nanoparticles. The present application breaks through the optical diffraction limit of traditional optical tweezers by using the anapole mode excited by the dumbbell-shaped slot structure and the local light field enhancement characteristics, and realizes stable capture of nanoparticles much smaller than the wavelength of incident light; the all-dielectric system composed of silicon and silicon dioxide is adopted, there is no metal ohmic loss, the total power consumption is extremely low, and the local near-field temperature shift is negligible, so that the capture without thermal damage under low-power driving is realized.
Owner:SOUTH CHINA NORMAL UNIV

Manufacturability improvements for laparoscopic introducer

An introducer assembly for applying a film at a surgical site includes a winding rod with a shaft that extends from a handle. The handle is located at a proximal end of the winding rod and includes a plurality of raised protrusions. The shaft includes a slit located at its distal end. The shaft of the winding rod has a dumbbell-shaped cross-section. The introducer assembly also includes an outer cannula assembly with a metallic tube coupled to a molded grip located at the proximal end of the metallic tube. The metallic tube includes a slit at its distal end and a notch at its proximal end; the notch is configured to mate with a tab on the molded grip for rotational clocking. The molded grip includes at least one substantially flat surface to prevent rolling, and includes a plurality of ribs radiating from the surface of the molded grip.
Owner:BAXTER INT INC +1

Impact dissipating bollard

An impact dissipating bollard system includes a vertical stanchion and a composite energy-absorbing deformable cartridge configured to be positioned within a retaining foundation that includes a rigid core portion including a stanchion-receiving aperture and first and second projections extending from the rigid core portion. The first and second projections, together with the core portion, form the dumbbell shape. Energy-absorbing resilient elastic material surrounds the rigid core portion and is positioned within recesses within the first and second projections. The bollard system is configured such that impact energy is transferred from the vertical stanchion to deform the composite energy-absorbing deformable cartridge. The bollard system retaining foundation includes a reinforcing frame embedded in concrete and having a strength of least 30 MPa.
Owner:HONG KONG APPLIED SCI & TECH RES INST

Manufacturability improvements for laparoscopic introducer

PCT designated stageWO2026055654A1CannulasLaproscopesDumbbellSurgical site
An introducer assembly for applying a film at a surgical site includes a winding rod with a shaft that extends from a handle. The handle is located at a proximal end of the winding rod and includes a plurality of raised protrusions. The shaft includes a slit located at its distal end. The shaft of the winding rod has a dumbbell-shaped cross-section. The introducer assembly also includes an outer cannula assembly with a metallic tube coupled to a molded grip located at the proximal end of the metallic tube. The metallic tube includes a slit at its distal end and a notch at its proximal end; the notch is configured to mate with a tab on the molded grip for rotational clocking. The molded grip includes at least one substantially flat surface to prevent rolling, and includes a plurality of ribs radiating from the surface of the molded grip.
Owner:BAXTER INT INC +1

A mold and method for preparing a fiber mesh reinforced ecc tensile specimen

PendingCN122409302AFiberSlurry
The application discloses a fiber grid reinforced ECC tensile specimen preparation mold and method. The mold comprises a bottom plate, two L-shaped frames and two pressing plates. The method comprises the following steps: pouring ECC slurry into a dumbbell-shaped pouring frame body to be flush with the lower step surface to form a lower ECC base; laying a fiber grid on the upper surface of the lower ECC base and the lower step, installing a pressing plate and applying tension to the fiber grid; continuing to pour ECC slurry to fill the inner cavity of the frame body to form an upper ECC base; and removing the mold after curing to obtain a specimen. The application realizes accurate positioning and mechanical tensioning of the fiber grid in the thickness direction through cooperation of the lower step and the pressing plate, the grid is centered, the deviation is controlled within ±0.1 mm, the tensioning state is stable during the whole pouring, vibrating and initial setting process, local stress concentration caused by grid eccentricity is effectively avoided, and tensile test data can truly reflect the actual performance of the material.
Owner:中国建设基础设施有限公司 +3

Broadband band-pass filter for improving right-end suppression

The utility model discloses a broadband band-pass filter capable of improving right-end suppression. The filter comprises a cavity and a cover plate, wherein the cover plate is fixedly arranged on the cavity; a plurality of resonators are fixedly installed in the cavity, and two dumbbell-shaped flying rods and two protruding connecting ends are further installed in the cavity. A plurality of frequency tuning assemblies, a plurality of main coupling tuning assemblies and four cross coupling tuning assemblies are mounted on the cover plate, each frequency tuning assembly is electrically connected with each resonator, and two cross coupling tuning assemblies are electrically connected with two dumbbell-shaped flying rods; and the other two cross coupling tuning assemblies are loaded with coiled screw fly rods and are electrically connected with the two connecting ends respectively. According to the broadband band-pass filter for improving right-end suppression, the advantages of a common dumbbell-shaped flying rod and a metal belt disc screw flying rod are combined together, left-end high suppression is met, high-end resonance suppression can be improved, the size and insertion loss are small, and the bearing power is large.
Owner:CHENGDU LINGYI TECHNOLOGY CO LTD

Laminated film

To provide a laminated film having high moisture permeability and excellent mechanical strength.SOLUTION: A laminated film comprising a base material layer and a resin film provided on the base material layer, wherein a water vapor permeation amount of the base material layer under conditions of 40 °C. and 90% RH measured by a cup method specified in JISZ0208 is 5000g / m2·day or more, a water vapor permeation amount of the resin film is 5000g / m2·day or more, a water vapor permeation amount of the laminated film is 3000g / m2·day or more, and a dumbbell-shaped No. 1 test piece is produced using the laminated film in conformity with JIS K 7116-1:2014, A tensile strength when the dumbbell-shaped No. 1 test piece is elongated under conditions of 25 °C and a speed of 500mm / min is 2. 5MPa or more.SELECTED DRAWING: None
Owner:SUMITOMO BAKELITE CO LTD

Moisture absorption type polyester fabric

The utility model discloses a moisture absorption type polyester fabric, and relates to the technical field of polyester fabrics. According to the technical scheme, the breathable fabric is characterized by comprising a base layer, a plurality of dumbbell-shaped breathable assemblies penetrating through the base layer are arranged on the base layer in the weft direction, the breathable assemblies of the adjacent wefts are arranged in a staggered mode, and a plurality of moisture absorption blocks with the same relative positions as the breathable assemblies are fixedly connected to the two sides of the base layer; the moisture absorption blocks are made of ramie fibers, and the ramie fibers have good moisture absorption and air permeability, so that the retention time of sweat on the body surface is shortened, and the moisture absorption and air permeability effects of the fabric are improved.
Owner:WUJIANG XIANHAO TEXTILE CO LTD

Breathing resistance device with an aromatherapy wick

Breathing resistance device with an aromatherapy wick, comprising a tubular section (1), wherein one end of the tubular section (1) is connected to a dumbbell-shaped suction nozzle (4), wherein an aromatherapy wick (9) is arranged inside the tubular section (1), wherein one end of the dumbbell-shaped suction nozzle (4) is provided with a connecting piece (8) and the connecting piece (8) serves to connect the dumbbell-shaped suction nozzle (4) to the tubular section (1), and the aromatherapy wick (9) contains aromatic essential oil.
Owner:HUNAN QINSHI IND & TRADE CO LTD

A reel type electromagnetic elastic absolute stress monitoring device facilitating pre-winding

The application relates to a reel type electromagnetic elastic absolute stress monitoring device facilitating prefabricated winding, which is used in the field of nondestructive testing of ferromagnetic materials and particularly relates to nondestructive testing of absolute stress of ferromagnetic material components. The device is composed of a winding of multiple coils in series or in parallel, multiple dumbbell-shaped soft magnetic material cores and single or multiple detection elements. The device can be directly assembled on a measured ferromagnetic material component to complete installation without on-site winding, and can be mass-produced in a factory, so that the installation of the sensor can be completed on site, and the device is convenient to disassemble and replace, thereby avoiding the problem of winding difficulty of a concave arc surface in a magnetic core during prefabricated winding. Under pulse or alternating excitation signals, the dumbbell-shaped soft magnetic material core with the winding generates a magnetic potential, and a magnetic flux is generated in the sensor and the measured component, so that the measured component is magnetized, an electric signal is output by the detection element, magnetic characteristic quantities related to absolute stress of the component are obtained according to the electric signal, and nondestructive testing of absolute stress of the ferromagnetic material component is realized.
Owner:ZHEJIANG UNIV

Toothbrush with multiple brushing surfaces

Aspects include a toothbrush and related methods of brushing teeth. In some cases, a toothbrush includes: a head including an approximately dumbbell-shaped core and a set of brushing portions extending from the approximately dumbbell-shaped core, the set of brushing portions including an upper brushing portion and a lower brushing portion, wherein the upper brushing portion and the lower brushing portion are oriented and spaced apart relative to one another to enable a provider to brush upper teeth and lower teeth of another person without removing the head from the mouth of the other person, and a handle coupled with the head, the handle including at least one longitudinal portion positioned relative to the head such that a hand of the provider is oriented at a distinct angle from the head while brushing the teeth of the other person and holding the at least one longitudinal portion.
Owner:CENT FOR DISABILITY SERVICES

Automatic unhooking lifting appliance for travelling crane

PendingCN121269498ALoad-engaging elementsMarine engineeringDumbbell shaped
The invention discloses an automatic unhooking lifting appliance for a travelling crane. The automatic unhooking lifting appliance is provided with a basically straight lifting arm and a lifting hook which is fixedly connected to the tail section of the lifting arm and is bent into a hook shape. The suspension arm is provided with a suspension arm head section and a suspension arm tail section, and a hanging buckle is arranged between the suspension arm head section and the suspension arm tail section. The suspension arm is of a cavity structure, and mercury is filled in a flow channel of the suspension arm. The flow channels are dumbbell-shaped, the volume of the head flow channel is larger than that of the tail flow channel, and the middle flow channel is a narrow long-strip-shaped flow channel. When the suspension arm is horizontally placed, the lowest position of the head runner is lower than the lowest position of the tail runner. The manufacturing cost is low, the operation efficiency is improved, and the safety is improved.
Owner:NANTONG YANGZI CARBON

Fluororesin composition, molded article, and method for producing fluororesin composition

This fluororesin composition contains a first fluororesin having a heat history when heated to a melting point or higher and a second fluororesin not having a heat history when heated to a melting point or higher, and is characterized in that: the first fluororesin and the second fluororesin are non-melt-moldable fluororesins; a preform obtained by compression molding the fluororesin composition is fired at 380 DEG C for 2 hours or more to form a 16 mm x 45 mm micro dumbbell-shaped test piece having a thickness of 0.5 mm, and after the test piece is subjected to a standing treatment in 3.6 mass% hydrochloric acid at 23 DEG C for 24 hours, the amount of metal elution is 5 ng / g or less with respect to the total mass of the test piece.
Owner:AGC INC