Abstract: A manual transmission includes an input shaft operatively connected to a source of motive power and a countershaft in axially parallel relationship with the input shaft. The manual transmission also includes an output shaft in axially parallel relationship with the counter shaft. The manual transmission further includes a plurality of gear set pairs disposed between the input shaft and the counter shaft such that the gear sets provide different gear ratios for transferring torque from the input shaft to the output shaft, each of the gear sets including a driver gear operatively supported by the input shaft such that the driver gear receives only torque from the source of motive power.
Type:
Grant
Filed:
August 24, 2005
Date of Patent:
November 11, 2008
Assignee:
Dymos Co., Ltd.
Inventors:
Thomas Christopher Bowen, Marius Octavel Enache
Abstract: An actuator for selectively causing axial compression of friction elements in a clutch is disclosed. The actuator comprises a pair of beveled wedge washers and a bearing race supported between the washers. The race supports conical bearing rollers in a generally radial orientation. An actuator plate is mounted for rotation relative to the bearing race and includes bearing ramp surfaces that are operable to move the conical bearing rollers radially inwardly thereby forcing the washers to move apart axially and to thereby cause compression of and torque transfer through the friction elements. A clutch including the actuator is well suited for inclusion in a transfer case.
Type:
Grant
Filed:
December 21, 2005
Date of Patent:
August 12, 2008
Assignee:
DYMOS Co., Ltd.
Inventors:
Dan M. Stefan, Thomas C. Bowen, Jason R. Davis
Abstract: A power take-off unit includes an input shaft for operative connection to a source of motive power and a first drive gear operatively mounted to the input shaft and having a first set of drive teeth. The power take-off unit also includes a second drive gear having a second set of drive teeth and a first set of bevel teeth, the second set of drive teeth being meshingly engaged to the first drive teeth. The power take-off unit further includes an output gear mounted transversely to the second drive gear and having a second set of bevel teeth meshingly engaged to the first set of bevel teeth to transfer torque transversely from the input shaft to drive a set of wheels of a vehicle.
Type:
Grant
Filed:
August 30, 2005
Date of Patent:
May 13, 2008
Assignee:
Dymos Co., Ltd.
Inventors:
Thomas C. Bowen, Ned Wright, Dan Stefan, Marius Enache
Abstract: A system for monitoring tire pressure and producing a first signal in the event that a low tire pressure condition has been sensed and a second, different signal in the event that a low tire pressure condition has not been sensed and a third signal in the event that the system is not operable. The system comprises a sensor for each tire and an associated transceiver antenna coil. Each sensor comprises a pressure switch and a circuit that has a first resonant frequency when the pressure switch is in a first state and a second, different resonant frequency when the switch is in a second state. An excited circuit associated with each transceiver antenna coil generates an AC electromagnetic field across the transceiver antenna coil and a detector circuit is operable to demodulate information communicated passively by the sensor that reflects its resonant frequency.
Type:
Grant
Filed:
February 23, 2006
Date of Patent:
February 26, 2008
Assignee:
Dymos Co., Ltd.
Inventors:
Dimi Apostolopoulos, Stuart Heys, James Teza, Michael Wagner, Donggi Kim