Patents Represented by Attorney, Agent or Law Firm Thomas C. McDonough
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Patent number: 6152434Abstract: The invention relates to a support for articles such as ceiling slabs, roof battens, machine parts or the like. The support comprises at least two telescopic tubes or one telescopic eod in at least one tube. A first tube or the rod can be displaced by a first distance in relation to the second tube, and devices are provided to convey the first tube or the rod a further distance in relation to the second tube. Stopping devices for the tube(s) and the rod are also provided in relation to each other and end stops are provided on the tubes, or the rod, the devices for further conveyance of the first tube or the rod comprising a ratchet, rack, clamping bracket or the like which are provided with manual advance devices.Type: GrantFiled: November 23, 1997Date of Patent: November 28, 2000Inventor: Rainer Gluck
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Patent number: 6145312Abstract: An electromechanical bypass mechanism is provided for use in a hydrostatic transmission, to enable the user to open or close a bypass to the hydraulic circuit of the transmission through use of an switch mechanism attached to the bypass mechanism in the circuit. The invention also comprises an improved neutral feature for hydrostatic transmissions, with a switch connected to the control mechanism for the unit, whereby the switch is activated to place the unit in bypass when said mechanism is placed in the neutral location. A means is provided for opening and closing a shunt or bypass between the high pressure side and the low pressure side of the hydrostatic system which is triggered by an electrical signal.Type: GrantFiled: December 30, 1998Date of Patent: November 14, 2000Assignee: Hydro-Gear Limited PartnershipInventors: Raymond Hauser, Lonnie E. Holder
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Patent number: 6135911Abstract: A transaxle drive differential assembly powered by an input drive and connected to a pair of axle shafts. The differential assembly includes a housing comprised of a first housing section and a second housing section wherein at least one of the housing sections has a bearing surface. A ring gear, drivingly linked to the input drive, has an inner circumference which is supported on the bearing surface. A differential is drivingly linked to the ring gear and is adapted to drive the pair of axle shafts.Type: GrantFiled: September 10, 1999Date of Patent: October 24, 2000Assignee: Hydro-Gear Limited PartnershipInventor: Raymond Hauser
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Patent number: 6122996Abstract: A hydrostatic transmission design including externally mounted protrusions or devices for creating a durable, visible coding system. A clip means is also disclosed for securing to the ends of the axle horns to protect the casing from contact with vehicle wheels. The transmission also includes a friction pack for improved control of the transmission, having a control arm which is not secured directly to the external housing of the transmission.Type: GrantFiled: November 20, 1998Date of Patent: September 26, 2000Assignee: Hydro-Gear Limited PartnershipInventors: Raymond Hauser, Craig Wigness, Thomas Langenfeld, William Herbert Ward
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Patent number: 6105463Abstract: A casing adapted for use in carrying a transmission or transaxle assembly. The casing includes a main casing section having an opening and a cap disposed over the opening wherein the cap and the main casing section are adapted for snap fit engagement. In a first embodiment, the main casing section has a first lip formed around the perimeter of the opening and the cap has a second lip wherein the first and second lips are adapted for snap fit engagement. In a second embodiment, the main casing section has a lip formed around the perimeter of the opening and the cap comprises a plurality of clips wherein the lip and the plurality of clips are adapted for snap fit engagement.Type: GrantFiled: July 24, 1997Date of Patent: August 22, 2000Assignee: Hydro-Gear Limited PartnershipInventor: Ronald Sporrer
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Patent number: 6073444Abstract: A valve mechanism for use in a hydrostatic transmission including a closed porting system for hydraulic fluid and a sump is provided. The valve mechanism includes a valve body mounted to the hydrostatic transmission whereby the valve body is open to the closed porting system at one end thereof and open to the sump at the other end thereof. The valve body has a first open position whereby hydraulic fluid is pulled into the closed system from the sump when the pressure of the fluid in the closed system is below a first pressure, a second open position whereby hydraulic fluid exists the closed system to the sump when the pressure of the fluid is at a second pressure higher than the first pressure, and a closed position when the pressure of the hydraulic fluid in the closed system is at a third pressure higher than the second pressure.Type: GrantFiled: January 4, 1999Date of Patent: June 13, 2000Assignee: Hydro-Gear Limited PartnershipInventors: Todd Horton, Michael Bennett
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Patent number: 6024665Abstract: A transaxle drive differential assembly powered by an input drive and connected to a pair of axle shafts. The differential assembly includes a housing comprised of a first housing section and a second housing section wherein at least one of the housing sections has a bearing surface. A ring gear, drivingly linked to the input drive, has an inner circumference which is supported on the bearing surface. A differential is drivingly linked to the ring gear and is adapted to drive the pair of axle shafts.Type: GrantFiled: September 14, 1998Date of Patent: February 15, 2000Assignee: Hydro-Gear Limited PartnershipInventor: Raymond Hauser
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Patent number: 6014861Abstract: A hydrostatic transmission having a hydraulic pump and motor for use in a vehicle, including a center section for mounting and operatively connecting the pump and motor, a rotatable output drive shaft engaged to the hydraulic motor, and a running surface and support members integrally formed with the center section to fully support the output drive shaft, and further including a thrust bearing mounted in a housing for the transmission to engage said hydraulic motor, where the thrust bearing is supported by the upper and lower casing sections of the housing.Type: GrantFiled: January 30, 1998Date of Patent: January 18, 2000Assignee: Hydro-Gear Limited PartnershipInventors: Ray M. Hauser, Alan W. Johnson
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Patent number: 5984822Abstract: An integrated hydrostatic transaxle including a housing in which a center section is supported. The center section supports a hydraulic pump unit and a hydraulic motor unit having a motor shaft drivingly connected thereto. A differential assembly is drivingly linked to the motor shaft and is used to drive a pair of axle shafts which are supported by the housing. The differential assembly includes a rotatable gear which is maintained in frictional engagement with at least one bearing surfaces for frictionally inhibiting the rotational movement thereof.Type: GrantFiled: June 25, 1998Date of Patent: November 16, 1999Assignee: Hydro-Gear Limited PartnershipInventors: John Schreier, Matthew Hansen, Todd Horton, Ron Sporrer
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Patent number: 5899826Abstract: A controlled traction cartridge for use in connection with a differential. The catridge generally comprises a shaft, a gear mounted on the shaft and rotatable with respect thereto, and an interior bearing surfaces associated with the shaft. The gear is maintained in frictional engagement with the interior bearing surface for inhibiting the rotation of the gear.Type: GrantFiled: April 28, 1998Date of Patent: May 4, 1999Assignee: Hydro-Gear Limited PartnershipInventors: John Schreier, Matthew Hansen, Todd Horton
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Patent number: 5897452Abstract: An integrated hydrostatic transaxle including a housing in which a center section is supported. The center section supports a hydraulic pump unit and a hydraulic motor unit having a motor shaft drivingly connected thereto. A differential assembly is drivingly linked to the motor shaft and is used to drive a pair of axle shafts which are supported by the housing. The differential assembly includes a rotatable gear which is maintained in frictional engagement with at least one bearing surfaces for frictionally inhibiting the rotational movement thereof.Type: GrantFiled: August 16, 1996Date of Patent: April 27, 1999Assignee: Hydro-Gear Limited PartnershipInventors: John Schreier, Matthew Hansen, Todd Horton, Ron Sporrer
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Patent number: 5894783Abstract: A swash plate assembly for use in connection with a hydrostatic transmission. The swash plate assembly comprises a thrust bearing and a swash plate formed as a net shaped part from a plastic material adapted to carry the thrust bearing wherein the swash plate has an elongated aperture for allowing a shaft to pass therethrough and a plurality of acoustical cavities formed in the underside thereof generally arranged around the elongated aperture and proximate to the thrust bearing.Type: GrantFiled: July 1, 1997Date of Patent: April 20, 1999Assignee: Hydro-Gear Limited PartnershipInventors: Raymond M. Hauser, John Schreier
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Patent number: 5863271Abstract: A controlled traction cartridge for use in connection with a differential. The catridge generally comprises a shaft, a gear mounted on the shaft and rotatable with respect thereto, and an interior bearing surfaces associated with the shaft. The gear is maintained in frictional engagement with the interior bearing surface for inhibiting the rotation of the gear.Type: GrantFiled: August 16, 1996Date of Patent: January 26, 1999Assignee: Hydro-Gear Limited PartnershipInventors: John Schreier, Matthew Hansen, Todd Horton
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Patent number: 5855116Abstract: A valve mechanism for use in a hydrostatic transmission including a closed porting system for hydraulic fluid and a sump is provided. The valve mechanism includes a valve body mounted to the hydrostatic transmission whereby the valve body is open to the closed porting system at one end thereof and open to the sump at the other end thereof. The valve body has a first open position whereby hydraulic fluid is pulled into the closed system from the sump when the pressure of the fluid in the closed system is below a first pressure, a second open position whereby hydraulic fluid exists the closed system to the sump when the pressure of the fluid is at a second pressure higher than the first pressure, and a closed position when the pressure of the hydraulic fluid in the closed system is at a third pressure higher than the second pressure.Type: GrantFiled: June 5, 1996Date of Patent: January 5, 1999Assignee: Hydro-Gear Limited PartnershipInventors: Todd Horton, Michael Bennett
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Patent number: 5819974Abstract: A recycle bin having a bottom and a continuous side wall extending upwardly therefrom to form a receptacle having an opening opposite the bottom. A lip extends around the upper perimeter of the side wall proximate to the opening. A generally flexible top cover, sized to at least overlay the opening, is attached to the lip at a first location. A strap, having a first end secured to the top cover and a second end carrying a fastener adapted to releasably mate with the lip at a second location, is provided for releasably securing the top cover over the opening.Type: GrantFiled: June 12, 1996Date of Patent: October 13, 1998Inventor: Gregory D. Caldwell
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Patent number: 5819535Abstract: A hydrostatic transmission. The hydrostatic transmission generally comprises a sump containing hydraulic fluid, a charge pump in flow communication with the sump for creating high pressure hydraulic fluid from the hydraulic fluid, a center section having hydraulic porting formed therein, a hydraulic pump, a hydraulic motor drivingly connected to the hydraulic pump through the hydraulic porting, and a manifold defining a gallery for storing the high pressure fluid. The gallery is in flow communication with the charge pump and the hydraulic porting.Type: GrantFiled: August 23, 1996Date of Patent: October 13, 1998Assignee: Hydro-Gear Limited PartnershipInventors: Daryl Smothers, Raymond Hauser
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Patent number: 5807200Abstract: A transaxle drive differential assembly powered by an input drive and connected to a pair of axle shafts. The differential assembly includes a housing comprised of a first housing section and a second housing section wherein at least one of the housing sections has a bearing surface. A ring gear, drivingly linked to the input drive, has an inner circumference which is supported on the bearing surface. A differential is drivingly linked to the ring gear and is adapted to drive the pair of axle shafts.Type: GrantFiled: August 23, 1996Date of Patent: September 15, 1998Assignee: Hydro-Gear Limited PartnershipInventor: Raymond Hauser
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Patent number: 5782717Abstract: A transaxle assembly includes an output shaft which drives a differential assembly. The differential assembly includes a first gear comprised of a spur gear which is adapted to be driven by the output shaft, a sun gear movable with the first gear, a non-movable ring gear, a plurality of planet gears adapted to be drivingly connected to the ring gear and to be driven by the sun gear orbitally thereabout, a planet gear carrier for rotatably supporting the plurality of planet gears and movable therewith, and a differential carried by the planet gear carrier. The differential is adapted to drive an axle on which two wheels are mounted.Type: GrantFiled: August 29, 1996Date of Patent: July 21, 1998Assignee: Hydro-Gear Limited PartnershipInventors: Daryl Smothers, Raymond Hauser
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Patent number: 5771758Abstract: An axle driving apparatus is provided an includes a main casing, a cap plate coupled to the main casing along a first split line where the first split line is substantially disposed in a horizontal plane, and an axle cap coupled to the main casing along a second split line where the second split line is substantially disposed in a vertical plane. A center section is supported solely by the main casing and has connected thereto a hydraulic pump and a hydraulic motor where the center section is disposed offset from both the first split line and the second split line. A pump shaft is linked to the hydraulic pump and is supported by the main casing where the pump shaft has an axis disposed perpendicular to the horizontal plane and parallel to and offset from the vertical plane. A motor shaft is linked to the hydraulic motor and has an axis parallel to and offset from the horizontal plane and perpendicular to the vertical plane.Type: GrantFiled: March 19, 1997Date of Patent: June 30, 1998Assignee: Hydro-Gear Limited PartnershipInventor: Ray Hauser
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Patent number: D415228Type: GrantFiled: April 6, 1998Date of Patent: October 12, 1999Assignee: Taylor Made Golf Company, Inc.Inventor: Philippe Besnard