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Class 74/665P - Miscellaneous (plural power paths)


Subclass of Class 74 - Machine element or mechanism
No. of patents: 22
Last issue date: 08/19/2008


NumberTitleIssue Date
7413142Split torque gearbox for rotary wing aircraft with translational thrust system
A gearbox of a high speed compound rotary-wing aircraft includes a main module, an input module and a translational thrust module. The input module receives power from the engines to drive a dual, contra-rotating, coaxial main rotor system and a translational thrust...
08/19/2008
7360471Triple output transfer case for a vehicle seat
A transfer case assembly (10) for selectively moving a seat assembly in a plurality of adjustment directions. The assembly comprises a motor (12) and a drive shaft (14) operatively connected to the motor (12) for rotation in response to a...
04/22/2008
7311629Transmission with a steplessly adjustable transmission ratio, with or without branched power and with or without an electrical machine
A branched power transmission having several transmission ratio ranges with a steplessly adjustable transmission ratio. A drive shaft is connected to both shafts of a variable speed unit through a distributor transmission, which shafts in turn are connected with the...
12/25/2007
7306216Power transmitting apparatus, power switching apparatus, and driving apparatus of multi-function machine using the same
A driving apparatus of a multi-function machine includes a scanner unit scanning data recorded on a sheet of document and a document transport part to transport the sheet of document. A printer unit prints data on a sheet of paper for an output and includes a carrie...
12/11/2007
7219579Apparatus and method for actuating control surfaces
An apparatus for actuating a control surface includes a first spur gear, a first drive assembly engaged with the first spur gear, a second spur gear, a second drive assembly engaged with the second spur gear, and a gear assembly capable of being coupled with the con...
05/22/2007
7152503Device for compensating a torque produced by a gyrostatic effect
A device for compensating a torque produced on a movable axle in a machine tool or production machine by a gyrostatic effect includes a rotating useful machine system attached to the movable axle and producing a useful angular momentum, and a rotating machine counte...
12/26/2006
6418816Power transmission device
A power transmission device includes a motor, a first gear member having an internal gear and an external gear, wherein an output of the motor is transmitted to the internal gear to rotate the first gear member, a planet gear member having a first gear pa...
07/16/2002
5643131Continuously variable transmission with wide transmission ratio range
The invention concerns a continuously variable transmission having a driving and a driven shaft (1, 9) and first and second intermediate shafts (10, 11). Power is transmitted to the driven shaft (9) through a transmission variometer with i2 arr...
07/01/1997
5213551Variable-ratio transmission device, especially for motor vehicles
A transmission (1) has an input (2) connected to an engine (3). At a speed above idling, a centrifugal clutch (9) connects the engine to a pump (8) of a torque converter (7) and also to a sun gear (14) of a planetary gear train (13). A turbine (11) of the...
05/25/1993
5181431Automatic shifting device of a multi-path toothed-wheel gear change box
A method and apparatus is provided for automatic shifting of a multi-path, toothed-wheel gear change box with at least two gearbox subunits in parallel to one another in the power transmission path between an input shaft and an output shaft and having loo...
01/26/1993
4858491Fail-free actuator assembly
A mechanical actuator assembly which automatically releases the load controlled by the actuator when the actuator jams or otherwise fails. The actuator assembly has two kinetic energy sources, the outputs of which are normally summed for application to th...
08/22/1989
4644819High-low speed drive system for multiple spindle machines
High-low speed drive system includes a main drive shaft which may be selectively driven off one or the other of a pair of continuously driven high and low speed shafts by selective engagement and disengagement of associated pneumatic operated disc clutche...
02/24/1987
4250985Power transmission system
A power transmission system comprises a synchronous main toothed clutch 20 and a subsidiary toothed clutch 21 arranged in parallel in main and subsidiary power paths 6, 7 respectively between an input shaft 1 and an output shaft 2. When the main clutch 20...
02/17/1981
4229991Gear reducer with tandem drives to the output
A cone drive, high output speed reducer, having a low clearance for low profile applications. An input shaft drives a helical idler pinion which in turn drives two other helical idler pinions. The two other idler pinions are each mounted on a separate sha...
10/28/1980
4165657Multistage automatic transmission
A multistage automatic countershaft transmission adapted for mutually independently shifting the first and second phases of the gears of a transmission to thereby effectuate a smooth gear change within a narrower range of speeds. The countershaft transmis...
08/28/1979
4147075Combined gearbox with stepless variable speed ratio
A stepless variable speed gearbox employing a parallel combination of a hydrodynamic drive and a variable speed drive, with a coupling arrangement including an overrunning or disconnecting clutch to disconnect the hydrodynamic drive when the variable spee...
04/03/1979
4145166Displacement pump
Disclosed is a displacement pump especially suited for use in very small well bores. The pump includes a piston working in a cylinder, driven by a rotating cam shaft having closed loop cams for effecting reciprocation of the piston. The rotating cam shaft...
03/20/1979
4073201Powered wrist joint
A powered wrist joint consisting of a base having a pitch member mounted thereon for rotation about a pitch axis and a pitch drive mounted on the base for driving the pitch member about the pitch axis and a yaw shaft mounted on the pitch member on a yaw a...
02/14/1978
4056018Multiple power path concentric speed reducer
A multiple power path concentric speed reducer in which a center shaft having a pinion thereon and an axle having an externally toothed gear thereon are disposed coaxially with respect to one another, and a plurality of gear trains operatively connect the...
11/01/1977
4018105Multiple output geared transmission
There is disclosed a multiple output belt driving geared transmission wherein control of the speed and power delivered to the belt means and subsequent prime user is provided....
04/19/1977
3979965Torque multiplier tool
A torque multiplier tool engageable between a torque wrench and a piece of work, said tool comprising a body with an elongate support engaging reaction arm to stop rotating of the body, a wrench engaging input shaft rotatably carried by the body, a work e...
09/14/1976
3964345Manually operable blender
A hollow vertical housing contains vertical output shaft and gearing. A rotatable handle disposed on the outside of the housing, when rotated, by means of the gearing causes the shaft to rotate at such higher speed. Cutter blades in a hollow container whi...
06/22/1976
 
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