Patents Examined by Long Bao Nguyen
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Patent number: 6502612Abstract: An integral solid tire is formed with an outer section and an inner foam section. The inner side portion of the outer section comprises a number of layers with one portion integrating to the inner portion of the outer section. When sulfur is added to the outer section for processing, the inner foam section is integrally formed in the inner of the outer section by means of heating and pressure process, and the inner foam section is integral with the other portion of the layers of the outer section. In other words, the inner foam section is integral with the outer section, this design has a low density at the center and gradually increases towards outside in a radius state which has a better shock absorption.Type: GrantFiled: March 19, 2001Date of Patent: January 7, 2003Inventor: Chai-I Hsiao
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Patent number: 6502906Abstract: A bicycle wheel rim includes an annular connecting wall interconnecting left and right tire retaining walls. The connecting wall has left and right wall parts, each having an outer terminating edge adjacent to a respective tire retaining wall, and an inner terminating edge, and an intermediate wall part extending between the inner terminating edges and indented radially and inwardly to define an annular receiving groove. Each of the left and right wall parts has a radial outer surface formed with an annular rib such that the radial outer surface is defined with an outer section between the rib and the outer terminating edge, and a flat inner section between the rib and the inner terminating edge. The rib has first and second stop surfaces connected respectively to the inner and outer sections.Type: GrantFiled: December 10, 2001Date of Patent: January 7, 2003Assignee: Alex Machine Industrial Co., Ltd.Inventor: Chao-Ying Chen
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Patent number: 6494544Abstract: A wheel mounting system for a wet/dry vacuum cleaner is disclosed. A system provides a wet/dry vacuum cleaner base having a plurality of mounting surfaces extending therefrom. First and second wheels are mounted to first and second stub shafts which are inserted through at least two of the plurality of bearing surfaces and secured thereto using set screws. Flanges on outer ends of the stub shafts secure the wheels between the flanges and wheel wells extending from the base of the vacuum cleaner. A reinforcing shaft can be telescopingly received within the first and second stub shafts in order to enable the vacuum cleaner base to support relatively heavy loads.Type: GrantFiled: September 7, 2000Date of Patent: December 17, 2002Assignee: Shop Vac CorporationInventors: Robert C. Berfield, Ronald Griffin, David Martinez
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Patent number: 6488341Abstract: A balance weight for a two-wheeled vehicle includes a weight made from iron and a clip made from spring steel. The weight includes a first axial end, a second, opposite axial end, a transversely extending intermediate surface, and a first laterally extending groove for holding the clip therein having a groove bottom portion and a groove inlet portion which is smaller in width than the groove bottom portion. The clip includes a pair of arms, a connecting portion, an engaging portion formed in the connecting portion, a bent portion bent from the connected portion toward a space between the pair of arms, and an obliquely extending portion extending obliquely in a direction away from the transversely extending intermediate surface of the weight.Type: GrantFiled: January 17, 2002Date of Patent: December 3, 2002Assignee: Topy Kogyo Kabushiki KaishaInventors: Saburo Maruyama, Katsuji Shibusawa
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Patent number: 6485116Abstract: Joint assemblies are useful for connecting one structure to another structure. When the various components deflect or bend edge loading occurs between the various components. The subject joint assembly includes a bushing positioned in one structure and a pin positioned in a second structure. An insert has an inner diameter positioned around the pin and an outer surface diameter positioned to interact with the bushing. The outer surface being a crowned surface. The joint assembly having the crowned insert directs forces to the center of the insert to reduce edge loading and deflection of the pin will be followed by the insert.Type: GrantFiled: August 21, 2000Date of Patent: November 26, 2002Assignee: Caterpillar Inc.Inventor: Thomas E. Oertley
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Patent number: 6484774Abstract: Alternate embodiments of a vehicle tire inflation system are illustrated wherein pressurized air from a source on the vehicle is supplied from an end of an axle to the rotating hub cap and thus to the tire through a flexible tube which compensates for misalignment of the axes of the axle and hub cap.Type: GrantFiled: June 12, 2001Date of Patent: November 26, 2002Assignee: Vehicle Inflation Technologies, Inc.Inventor: Mark H. Naedler
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Patent number: 6478387Abstract: A heavy duty dual tire assembly (10) for mounting on dual rims (2) is disclosed. The assembly has a pair of tires (14) and a pair of separate removable annular tread belts (12) for mounting over both tires (14) the pair of separate removable annual tread belts (12) bridge the gap between the tires (10) when they are laterally adjacent and coaxially aligned by mounting on a dual rim. In one embodiment there is a separated tread belt spacer (9) that is interposed between tread belts (12) to, in combination with the tread belts, bridge the gap between the tires.Type: GrantFiled: July 13, 2001Date of Patent: November 12, 2002Assignee: The Goodyear Tire & Rubber CompanyInventor: William Earl Rayman
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Patent number: 6471303Abstract: A wheel for a motor vehicle includes cavities in a spoked rim structure. These cavities are provided with a removable sand core or with a remaining core, for example, made of metal foam. A rim, or a rim and a rim flange, may be connected with the spoked rim structure, so that a two-part or a three-part wheel can be produced in a simple manner.Type: GrantFiled: April 20, 2001Date of Patent: October 29, 2002Assignee: Dr. Ing. h.c.F. Porsche AGInventors: Frank Hummel, Jens Stach
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Patent number: 6471307Abstract: A crawler belt type traveling system which ensures improved durability in the portions near road wheel rolling contact sections. The system comprises crawler belts formed from an elastic material such as rubber and road wheels attached to a vehicle body. Each crawler belt has core bars embedded therein so as to be aligned at specified intervals in a longitudinal direction of the crawler belt. Each core bar has a pair of guide projections at the center thereof with respect to a widthwise direction of the crawler belt, the pair of guide projections being aligned in a widthwise direction of the crawler belt. Provided at both sides of the pair of guide projections are road wheel rolling contact sections. Each road wheel comes into contact with the road wheel rolling contact sections, for supporting each crawler belt.Type: GrantFiled: June 13, 2001Date of Patent: October 29, 2002Assignee: Komatsu Ltd.Inventors: Hiroaki Watanabe, Kazuo Yasojima
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Patent number: 6464304Abstract: A wheel (11) having a rim (12) with a pair of flanges (17, 19) including a peripheral potential roll surface (33) on at least one flange for contacting the ground in the event of tire failure has a convexly contoured roll surface with a finite cross-sectional radius of curvature (42) at the outermost radius of the wheel to provide an optimized shape of the contact surface and an enhanced contact area without introducing any flat regions in the contact area. The roll surface is formed to have a finite radius of curvature throughout the potential roll surface. The roll surface radius of curvature and may be formed in cross-section as a central circular segment (40) blending smoothly into two circular segments (44, 50) of lesser radii at the central circular segment extremities, or may be formed in cross-section as a portion of an ellipse (57) having a semi-minor axis (63) extending generally radially along the respective annular rim portion.Type: GrantFiled: May 16, 2000Date of Patent: October 15, 2002Assignee: Honeywell International Inc.Inventor: Joseph J. Pajot
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Patent number: 6464302Abstract: The present invention relates to the structural improvement of a wheel, and more particularly to an assembled wheel structure that has excellent resilience and no need to fill in air as well as is free of air leakage and easy to be disassembled. The present invention is constructed by a wheel body and a tire, wherein the wheel body is further constructed by a wheel shell and a matching wheel cover, while the tire, made of resilient materials (e.g., plastic, PU, etc.), inside accommodates a resilient inner tire to provide double-layered resiliency. There are several position pads on both sides of the inner circumference of the tire and the position pads 421, 431 on two sides are alternated with each other. A hole 422, 432 is formed on each position pad 421, 431 to allow the position rods to set in place and form a complete wheel structure.Type: GrantFiled: November 7, 2001Date of Patent: October 15, 2002Inventor: Chuan-Hai Huang
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Patent number: 6460939Abstract: A bicycle wheel rim can be worn down by rim brakes, leading to serious accidents. The present invention relates to a novel bicycle rim that provides direct and clear indication to a rider when a braking surface on the rim has been worn off. The novel bicycle rim comprises a base portion, two lateral flanks forming an outer braking surface, and a longitudinal hole. The braking surface has a first portion and a second portion. The first portion of the braking surface has a thickness that is designed to be worn off down to the longitudinal hole so as to form a visible slit, while the second portion, situated radially outwards with respect to the first portion, has a thickness such as to prevent deformations of the second portion when the first portion is worn off down to the longitudinal hole.Type: GrantFiled: July 9, 1998Date of Patent: October 8, 2002Assignee: “Alesa”, “L'Alliagi Leger et Ses Applications”Inventor: Ivo Joanna Hubert Claes
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Patent number: 6460945Abstract: An endless track includes an iron link belt, a continuous pad, and a connecting device. The iron link belt includes a link unit assembly constructed of a plurality of link units connected to each other. Each link unit includes a pair of links. The iron link belt may include a plate welded to the pair of links and extending perpendicularly to a direction in which the link unit assembly extends. The continuous pad includes the same number of core metal plates as that of the link units, and a single rubber belt covering and being vulcanization-adhered to a ground opposing surface of each of the core metal plates. The rubber belt extends continuously over all of the core metal plates. The rubber belt may include a small thickness portion positioned between two adjacent core metal plates. The connecting device connects the iron link belt and the continuous pad.Type: GrantFiled: March 22, 2001Date of Patent: October 8, 2002Assignee: Topy Kogyo Kabushiki KaishaInventors: Hiroyuki Takeno, Masahiro Nakajima, Kiyokazu Niwa, Makoto Takagi, Hirokatsu Niitsu, Isao Yoshida, Akihiro Koishi
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Patent number: 6454361Abstract: A skateboard wheel (40) having bearings (42) pressed on each side is covered to enhance the appearance of the wheel. The wheel thermoplastic tire (46) includes a concentric circular recessed cavity (58) within its outer side wall (54) and a wheel cover rim (60) is disposed within this recessed cavity. The wheel cover rim has a central opening (62) of a diameter large enough to permit bearing removal and attachment means secure the wheel cover rim to the tire. The wheel cover rim defines its purpose by including a decorative design on its exposed surface to embellish the overall presentation of the wheel.Type: GrantFiled: April 30, 2001Date of Patent: September 24, 2002Inventor: Desmond G. Martin
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Patent number: 6454363Abstract: The present invention relates generally to bicycles, and more particularly to wheel hub assemblies for bicycles and motorcycles. Specifically, the present invention provides a novel wheel hub assembly for connecting a wheel rim to the front fork or rear portion of the frame of the bicycle or motorcycle, with this same wheel hub assembly comprising an oversized single member hub-axle assembly for attachment to a fork dropout having an enlarged opening. The wheel hub assembly according to the present invention comprises an axle (or axles), a bearing assembly, a hub having connecting means (e.g. flanges and spokes, cylinder and bearing assembly, etc.), and a quick release clamping mechanism for securing the wheel hub assembly to the front forks or the rear portion of the frame of the bicycle.Type: GrantFiled: September 30, 1999Date of Patent: September 24, 2002Assignee: Marzocchi, S.p.A.Inventors: Loris Vignocchi, Sandro Musiani
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Patent number: 6450224Abstract: In accordance with the present invention, the traction device 10 includes mounting plate assembly 30, and cleats 40. Mounting assembly 30 comprises plate 31 and center ring 35. Plate 31 and center ring 35 are made of steel aluminum alloy or other heavy-duty material capable of withstanding the stresses to be encountered during the application of the invention. Tabs 32 are part of plate 30. As an example they may be formed by bending and folding material up 90 degrees from the plate surface during the manufacturing process. Center ring 35 fits down over and is welded to tabs 32 such that after assembly, holes 37 in center ring 35 will match holes 38 in tabs 32. Each cleat 40 is a single piece of steel or another heavy-duty material capable of withstanding the stresses expected to be encountered during the application of the invention. Cleats 40 are manufactured such that a portion of each cleat 40 is bent and folded to form a gripping element 41.Type: GrantFiled: November 28, 2000Date of Patent: September 17, 2002Inventor: Finis A. Ward
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Patent number: 6450583Abstract: A spun light alloy rim that substantially duplicates the strength and light weight of a cold forged alloy rim and incorporates through its method of manufacture appearance features and the relatively low cost of a cast alloy wheel.Type: GrantFiled: April 6, 2001Date of Patent: September 17, 2002Assignee: Specialty Blanks, Inc.Inventors: Arthur D. Hale, Jr., Michael J. Beyer
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Patent number: 6447077Abstract: A flexible track used for wraparound mounting on construction vehicle tires including a main pad assembly and a lift link assembly. The lift link assembly has a link component and a link pad pivotally connected to the main pad assembly for increasing track flotation and durability. The link component has a link base pivotally connected to the main component of the main pad assembly. The link component also has a link top that has a bonding aperture and is perpendicular relative to the link base forming an overhang. The link pad has a side wrap and under wrap. The link pad is rigidly connected to the link component for reducing track damage to the ground.Type: GrantFiled: August 8, 2001Date of Patent: September 10, 2002Assignee: Loegering Mfg. Inc.Inventors: David A. Durick, Bill R. Borkowski, Peter D. Stanek
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Patent number: 6447073Abstract: A torsion axle is provided, which includes an axle tube having an interior chamber and an insert assembly positioned within the interior chamber. The insert assembly includes a rigid shaft, a relatively flexible cartridge, and relatively inflexible front and rear bushings. The cartridge has an interior passageway receiving the shaft and the front and rear bushings likewise each have an aperture receiving the shaft. The front bushing is positioned on the shaft in front of the cartridge, while the rear bushing is positioned on the shaft to the rear of the cartridge. The front and rear bushings are dimensioned to fit closely within the interior chamber and are freely rotatable relative to the shaft, while the cartridge is non-rotatable relative to the shaft at the interior passageway.Type: GrantFiled: May 2, 2001Date of Patent: September 10, 2002Inventor: Bernhardt P. Goettker
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Patent number: 6443531Abstract: A method of making a wheel cover having a decorative outboard surface and an inboard surface for placement on a vehicle wheel includes the steps of forming a wheel cover substrate having a substrate contour providing the inboard substrate surface and with an outer substrate surface for bonding a skin thereto. The skin has a decoration applied to an inner skin surface for placement between the skin and the substrate. The skin has a decoration applied thereto. It is then cut to a desired shape complementing the substrate. It may, at that point, be deformed to also complement to contour of the substrate. The skin is bonded to the substrate by welding the materials to one another or by an adhesive.Type: GrantFiled: September 21, 2000Date of Patent: September 3, 2002Assignee: McKechnie Vehicle Components (USA), Inc.Inventors: Scott A. Hogan, Robert J. DiMarco, Patrick Griffin, Steve G. Smith, Gregory C. Stawara, Tim E. Garwood, Edward J. Belanger, Bridget Wise