Patents Represented by Attorney, Agent or Law Firm Brick Power
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Patent number: 6197099Abstract: A composite mixture of spherical objects and lubricant useful for its cushioning properties is disclosed and claimed. The composite mixture may be composed of microspheres typically less than 2000 microns in diameter with inert atmospheres sealed within their interiors and any of a variety of lubricants facilitating sliding and rolling movement between microspheres. Typically the composite mixture includes lubricant in a quantity sufficient to substantially coat the exterior surface of essentially all of the spherical objects, but in a quantity less than would cause dispersion of the spherical objects in the lubricant sufficient to physically separate the spherical objects from each other and substantially reduce the sliding and rolling contact of the spherical objects with each other. The preferred lubricant is a visco-elastic fluid that has a principle molecule and a cross-linking agent.Type: GrantFiled: April 9, 1997Date of Patent: March 6, 2001Inventor: Tony M. Pearce
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Patent number: 6058674Abstract: A structural member for use in a wheelchair which includes an elongate section having side members connected by at least one central member and movement accommodating channels. Preferably, the elongate section has a W-shaped cross-sectional configuration. The preferred cross-section has a generally round outline. The preferred wheelchair structural member also includes a mechanism for imparting torsional stiffness thereto. Preferably, that mechanism includes stiffening disks which have a solid, circular cross-sectional appearance, and which are formed integrally with the elongate section. Similarly, the preferred structural member may include a mechanism for imparting bending strength. Stiffening disks, as well as increased cross-sectional diameter and increased wall thickness may be used to reduce the tendency of a structural member to bend. A preferred injection molding method and the preferred use of fiber-reinforced plastic materials are also disclosed.Type: GrantFiled: May 4, 1998Date of Patent: May 9, 2000Assignee: TekSource, LCInventors: William M. Clover, Jr., Vladimir Sarpe
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Patent number: 6026527Abstract: A cushioning element that has a number of substantially parallel elongate columns which buckle under an appropriate load. The cushioning element may be formed from a soft, easily deformable elastic or visco-elastic cushioning media. As a force is exerted against the cushioning element generally parallel to a column, the cushioning media may compress, and eventually the walls of the column may buckle. This equalizes pressure across the contact area of the object being cushioned.Type: GrantFiled: August 13, 1997Date of Patent: February 22, 2000Assignee: EdiZone, LCInventor: Tony M. Pearce
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Patent number: 5943734Abstract: Multi-adjustable wheelchair with adjustability features which accommodate the physical size and comfort of the wheelchair user is disclosed and claimed. The wheelchair includes (1) wheelchair frame width adjustment, (2) wheelchair rear axle position adjustment, (3) wheelchair seat height and bucketing angle adjustment, (4) wheelchair seat base width and length adjustment, (5) wheelchair seat back angle adjustment and (6) wheelchair seat fore and aft position adjustment. The wheelchair also includes a truss structure wheelchair wheel caster fork that is lightweight, attractive, strong, durable, and inexpensive to produce.Type: GrantFiled: January 13, 1997Date of Patent: August 31, 1999Assignee: Teksource, LCInventor: Tony M. Pearce
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Patent number: 5944385Abstract: A wheelchair seat back having width adjustable wings, a mechanism to permit forward and backward angular adjustment of the wheelchair seat back, a clamping assembly for mounting the wheelchair seat back to wheelchair uprights, and a width adjustable cushion for a width adjustable wheelchair seat back.Type: GrantFiled: November 8, 1997Date of Patent: August 31, 1999Assignee: Teksource, LCInventor: Tony M. Pearce
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Patent number: 5906416Abstract: A wheelchair seat back having width adjustable wings, a mechanism to permit forward and backward angular adjustment of the wheelchair seat back, a clamping assembly for mounting the wheelchair seat back to wheelchair uprights, and a width adjustable cushion for a width adjustable wheelchair seat back.Type: GrantFiled: November 8, 1997Date of Patent: May 25, 1999Assignee: TekSource, LCInventor: Robert K. Rasmussen
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Patent number: 5829081Abstract: A cushion that includes a base and numerous bladders locatable on the base is disclosed and claimed. Each bladder contains a quantity of filler insufficient to completely fill the bladder, and each bladder has a loose or elastomeric skin to accommodate its conforming to the shape of an object to be supported by the cushion. The top surface of each bladder acts as a hammock when supporting a cushioned object, and the bladders interact with each other to accommodate protuberance and crevices of the cushioned object. Other embodiments of the invention include a cushion that is pre-shaped in a form complementary to the shape of the object to be cushioned, and a cushion that re-shapes itself to maintain supporting forces that are generally equal across the contact surface of the supported object.Type: GrantFiled: January 13, 1997Date of Patent: November 3, 1998Assignee: TekSource, LCInventor: Tony M. Pearce
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Patent number: 5769442Abstract: A structure for frames for bicycles, wheelchairs, and other vehicles, as well as components thereof and other devices requiring a strong, lightweight frame shell. The preferred frame structure is constructed from plastic molded partial shells that are assembled into shells (such as tubing) that comprises the frame. The partial shells have protrusions and receptacles on the joining faces of their skins that are used to join the partial shells together to form the assembled shell. This results in a lightweight, durable and aesthetically pleasing frame. In an alternative embodiment, the partial shells have protrusions and receptacles within their interiors for additional strength. Additional attachment mechanisms such as screws, bolts, nails, clips or rivets may be used for reinforcement of the partial shells. A method for manufacturing the frame is also disclosed.Type: GrantFiled: October 10, 1995Date of Patent: June 23, 1998Assignee: TekSource, HLCInventors: Alexander J. Robinson, Christopher O. Paragas