Patents Represented by Attorney C. H. Castleman, Jr.
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Patent number: 5823904Abstract: A pulley with an integral hub spun-roll formed of a disc of sheet metal where the hub has an annular ring extending radially outward of the hub and reinforcing the hub. Optionally, the hub has as integral flange that facilitates removal of the pulley from a shaft.Type: GrantFiled: November 19, 1996Date of Patent: October 20, 1998Assignee: The Gates CorporationInventors: Yahya Hodjat, Michael H. Kutzscher
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Patent number: 5807194Abstract: A synchronous power transmission belt with a belt body of cast urethane belt material, belt teeth formed of the body, a wear-resistant fabric reinforcement disposed along peripheral surfaces of the belt teeth, and a tensile member of helically spiraled cord embedded in the belt body and of a yarn of carbon fiber.Type: GrantFiled: October 31, 1996Date of Patent: September 15, 1998Assignee: The Gates CorporationInventors: Paul S. Knutson, Walter L. Dodson
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Patent number: 5683773Abstract: Chlorine-containing polyethylene- and polyether-based elastomer compositions having excellent heat resistance and chemical resistance, which are heat stabilized with from about 1 to about 25 parts per hundred weight of the elastomer of barium sulfate, and high temperature and chemical resistant molded and extruded products including automotive hose and cable jacketing incorporating such elastomer compositions.Type: GrantFiled: February 28, 1997Date of Patent: November 4, 1997Assignee: The Gates CorporationInventor: Dennis Kemper
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Patent number: 5647813Abstract: A belt tensioner of the Zed type with a pivot-arm attached to an off-set cylindrical member supported by sleeve-type bushings with axially spaced-apart bearing surfaces disposed over a pivot where the bearing surfaces have an axial length that is sized for an average pressure contact. The tensioner may include a spring activated damping mechanism with a brake shoe having oppositely facing inside ramp surfaces which operate in such a manner to provide a normal force that is greater than a spring force applied to the brake shoe.Type: GrantFiled: December 18, 1995Date of Patent: July 15, 1997Assignee: The Gates CorporationInventor: Alexander Serkh
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Patent number: 5645504Abstract: A power transmission belt with a body of belt material and belt teeth formed of the body and covered with a knitted fabric with a 1.times.1 rib construction.Type: GrantFiled: September 29, 1995Date of Patent: July 8, 1997Assignee: The Gates CorporationInventor: William L. Westhoff
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Patent number: 5632697Abstract: A belt tensioner of the Zed type with a pivot-arm attached to a cylindrical member and including a spring activated damping mechanism with a brake shoe having oppositely facing inside ramp surfaces which operate in such a manner to provide a normal force that is greater than a spring force applied to a brake shoe that engages the cylindrical member.Type: GrantFiled: December 18, 1995Date of Patent: May 27, 1997Assignee: The Gates CorporationInventor: Alexander Serkh
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Patent number: 5492580Abstract: A method of making a moldable, nonwoven composite material. The method includes blending a mix of first fibers and second thermoplastic fibers. The second fibers have a melting point lower than that of the first fibers and comprise approximately 40-80 percent of the blend. The blend is then processed into a fibrous batt. The batt is then consolidated into a nonwoven structure with the first fibers being thoroughly intermixed with the second fibers. The nonwoven structure is then heated to a temperature below the melting point of the first fibers and above the melting point of the second thermoplastic fibers to substantially liquefy the second fibers and form a thermoplastic resin. The heated nonwoven structure is compressed to flow the liquefied resin to displace air voids in the nonwoven structure and encapsulate the first fibers. Finally, the nonwoven structure is cooled to form a composite material having substantially reduced air voids therein with the first fibers thoroughly encapsulated by the resin.Type: GrantFiled: September 13, 1994Date of Patent: February 20, 1996Assignee: Gates Formed-Fibre Products, Inc.Inventor: George A. Frank
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Patent number: 5340167Abstract: The invention is a device for providing a clamping force about a connection end of elastomeric hose and tubing. The device includes a heat shrinkable polymer, having a diameter reducing release temperature, formed into a band. The band has a first nominal inside diameter defined as the diameter the band assumes upon being shrunk in free space and being smaller than the outside diameter of the connection end of the elastomeric hose and tubing. The band has a second nominal inside diameter defined as the diameter the band assumes upon being shrunk about the connection end of the elastomeric hose and tubing. The band also has a third nominal inside diameter defined as the diameter of the band after polymer orientation and before shrinkage, the third diameter being greater than the outside diameter of the connection end of the elastomeric hose and tubing. The first inside diameter is no greater than about 80 percent of the third inside diameter.Type: GrantFiled: February 26, 1992Date of Patent: August 23, 1994Assignee: The Gates Rubber COmpanyInventor: George E. Morse
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Patent number: 5314211Abstract: A coupling member of the type having a generally tubular body portion with a recessed annular element having a sealing surface portion, a swivel nut attached to the body portion and wherein the swivel nut has a concave frustoconical surface for engaging a second coupling member.Type: GrantFiled: October 1, 1992Date of Patent: May 24, 1994Assignee: The Gates Rubber CompanyInventor: Kevin J. Landhuis
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Patent number: 5284456Abstract: An endless power transmission belt has an elastomeric body portion, load carrying members embedded in the body portion, and a power transmitting surface integral with the body portion. The elastomeric body portion further includes material to mitigate unstable frictional behavior of the body portion responsible for initiating self-excited vibration at the power-transmitting surface.Type: GrantFiled: July 23, 1992Date of Patent: February 8, 1994Assignee: The Gates Rubber CompanyInventors: John E. Connell, Vicki C. Copeland, Herbert H. Frost
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Patent number: 5267758Abstract: A ferrule for attaching a hose end portion to a male-stem, the ferrule having a tubular socket portion that retains a bendable sleevelike insert having substantially a C-shape when viewed in cross-section. Oppositely facing circumjacent edges of the C-shaped insert may have teeth as a means for interdigitating with each other when the ferrule is used to couple hose.Type: GrantFiled: July 18, 1991Date of Patent: December 7, 1993Assignee: The Gates Rubber CompanyInventors: Dilip K. Shah, Satish M. Chohan
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Patent number: 5253506Abstract: Crimping apparatus includes a pair of coaxial rings, at least one of which is axially moveable toward and away from the other ring. Each ring is provided with a single pair of force reactive adjoining steep and shallow concave frustoconical surfaces which face each other. A plurality of circumjacent, radially arranged crimping members are positioned intermediate the rings. Each crimping member has two pairs of steep and shallow force reactive convex frustoconical surfaces that slidably engage with the concave force reactive surfaces of the rings to radially move the crimping members to and from the ring axis between an open position and a crimping position. The radial movement of the crimping members is in response to axial movement of at least one of the rings. The crimping apparatus also includes means for maintaining the crimping members in alignment while they are moved between the open and crimping positions.Type: GrantFiled: June 28, 1990Date of Patent: October 19, 1993Assignee: The Gates Rubber CompanyInventors: Edward H. Davis, Gerard F. Klaes, Jack Harris, Paul Douglass
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Patent number: 5251916Abstract: A flexible boot of the polymeric type for use with a universal joint where the boot has a radially outermost generally tubular wall section that interconnects to the boot body by oppositely facing peaks and valleys. The thickness of the boot sidewall is controlled to effect desire bending where, in one embodiment, peaks and valleys are thicker than an adjoining sidewall of a corrugation.Type: GrantFiled: April 6, 1992Date of Patent: October 12, 1993Assignee: The Gates Rubber CompanyInventors: Dieter Martin, Philip M. Patterson, Douglas J. Swanson
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Patent number: 5243846Abstract: A loading apparatus for slidably loading a plurality of circumjacent, radially arranged crimping members into the crimping member holders provided in the head of a crimping apparatus.Type: GrantFiled: October 5, 1989Date of Patent: September 14, 1993Assignee: The Gates Rubber CompanyInventors: Edward H. Davis, Gerald F. Klaes
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Patent number: 5235841Abstract: Crimping apparatus includes a pair of coaxial rings, at least one of which is axially moveable toward and away from the other ring. Each ring is provided with a single pair of force reactive adjoining steep and shallow concave frustoconical surfaces which face each other. A plurality of circumjacent, radially arranged crimping members are positioned intermediate the rings. Each crimping member has two pairs of steep and shallow force reactive convex frustoconical surfaces that slidably engage with the concave force reactive surfaces of the rings to radially move the crimping members to and from the ring axis between an open position and a crimping position. The radial movement of the crimping members is in response to axial movement of at least one of the rings.Type: GrantFiled: December 7, 1989Date of Patent: August 17, 1993Assignee: The Gates Rubber CompanyInventor: Jack L. Harris
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Patent number: 5205567Abstract: An inflatable packer is disclosed and includes an elastomeric tubular body adapted for radial expansion and having a longitudinal axis. The packer includes an elastic outer cover surrounding said tubular body, and coupling members disposed on each end of the tubular body. A plurality of substantially concentric reinforcing layers are stacked atop each other and sandwiched between the body and the cover. Each layer includes spirally wound reinforcing members extending the length of the body between the coupling members. The reinforcing members and each of layers has a uniform lay angle at any circumferential position along the length of the body, with a lay angle of the members in one of the layers differing from the lay angles of the remaining layers at the same circumferential position along the length of the body.Type: GrantFiled: October 30, 1991Date of Patent: April 27, 1993Assignee: The Gates Rubber CompanyInventors: Roy G. Quinlan, James C. Vance, Sr.
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Patent number: 5199141Abstract: A nonwoven fibrous flexible material includes a needled web having a front outer surface and a non-glazed back surface disposed opposite thereof. The web includes interengaged first fibers and second thermoplastic fibers with the outer surface being substantially free of the second thermoplastic fibers. The web also has a plurality of weld joints between the second thermoplastic fibers and at least a portion of the first fibers proximate the back surface.Type: GrantFiled: September 6, 1991Date of Patent: April 6, 1993Assignee: Gates Formed-Fibre Products, Inc.Inventors: Elwood G. Trask, Robert R. Walters
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Patent number: 5196281Abstract: An electrode for a rechargeable electrochemical cell including an electrically conductive substrate, a layer of an electrochemically active material attached to the substrate, the active material comprising a reducible species of a metal, at least one conductive contact area formed of a metallic form of said metal attached to said substrate, said metallic contact area comprising said reducible species in a converted form. A positive electrode is further provided wherein said active material is nickel hydroxide and said metallic form of said metal is nickel metal. The invention further comprises the method for manufacturing electrodes as described above, featuring use of reducing gas to effect conversion.Type: GrantFiled: September 20, 1990Date of Patent: March 23, 1993Assignee: Gates Energy Products, Inc.Inventors: Saverio F. Pensabene, Roy L. Royalty
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Patent number: 5185221Abstract: A metal hydride negative electrode plate for use in an alkaline electrochemical cell is disclosed including a conductive substrate carrier, a layer of electrochemically active hydrogen storage alloy material capable of reversibly storing hydrogen attached to the carrier, and the presence of a layer of carbon particles affixed to the outer surface of the active material layer. The carbon particle layer is present as a uniform distribution on the surface of the active material layer and prevents substantial oxidation of the active hydrogen storage alloy material during charge and overcharge of an alkaline cell incorporating the carbon coated metal hydride negative electrode of the invention.Type: GrantFiled: February 6, 1992Date of Patent: February 9, 1993Assignee: Gates Energy Products, Inc.Inventor: Guy G. Rampel
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Patent number: 5183108Abstract: An inflatable packer includes an elastomeric tubular body and an outer cover surrounding the body. An end member is also provided having a capped portion threadably engageable with an annular ring member, the ring member being secured to the end portion of the outer cover. A plurality of reinforcing elements are sandwiched between the cover and the body and have end portions terminating beneath the ring member. Finally, there is a mechanism for wedging the end portion of the reinforcing elements against the inner surface of the ring member in response to increased threaded engagement between the capped portion and the ring member to retain the elements in position beneath the ring member.Type: GrantFiled: August 19, 1991Date of Patent: February 2, 1993Assignee: The Gates Rubber CompanyInventors: Albert H. Lee, Jr., Carl H. Sabo