Class 74/665N - Spur

Subclass of Class 74 - Machine element or mechanism
No. of patents: 36
Last issue date: 09/29/2009

Number	Title	Issue Date
7594453	Gear system for drive of a multi-shaft extruder To drive an extruder which has several axially parallel shafts rotating in the same direction, with conveyor elements, arranged around a circle at equal angles with respect to each other, the shafts are attached to the driven shafts of a gear system. Each driven sha...	09/29/2009
7418888	Transmission mechanism between accessories and engine members for driving the rotor of a rotorcraft A transmission mechanism between at least one accessory and engine members for driving the rotor of a rotorcraft, the transmission therebetween being selectively either in isolation or in combination. An intermediate shaft is interposed between a main drive shaft fo...	09/02/2008
7357747	Apparatus for differential power distribution A steering drive mechanism utilizes a pair of planetary gear arrangements between the input (or engine drive shaft) and the output shafts driving each wheel of a vehicle. The input is supplied to each sun gear in equal magnitude but opposite direction to account for...	04/15/2008
7246539	Apparatus for actuating a control surface 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; and a second drive assembly engaged with the second spur gear. The apparatus further includes a gear assembly engage...	07/24/2007
7219579	Apparatus 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
6698313	Dual motor gear drive unit A gear drive assembly comprises two drive motors, each individually driving one propulsion element. The assembly accommodates transaxle-type mounting on a vehicle....	03/02/2004
6598496	System for driving vehicle accessories through an electro-mechanical interface An electro-mechanical interface incorporated in a series hybrid auxiliary power unit. According to the present invention the electro-mechanical interface employs a first tier of geared output shafts rotatably supported within a frame and meshingly engaged...	07/29/2003
6106426	Arrangement for a double shaft extruder A transmission for a high-output two-shaft extruder, comprising a speed-reduction gear (1) and a distribution gear (2). The distribution gear has one take-off shaft (4) driven directly by the speed-reduction gear and another take-off shaft (5) driven by t...	08/22/2000
6059029	Coiled tubing injector A coiled tubing injector has a transmission with reduction gear trains having two rotary power outputs for driving each of the injector's two chains, and one or more rotary power inputs located on the same side of the transmission as the rotary drive outp...	05/09/2000
6028384	Actuator The present invention is a new type of an electromechanical actuator that combines two rotary outputs from a solitary electrical input into a single molded housing. The actuator comprises an input assembly responsive to an external electrical control sour...	02/22/2000
5683324	Toroidal continuous variable transmission for four-wheel drive automobiles The toroidal continuous variable transmission for four-wheel drive automobiles distributes a greater torque to the rear wheels than to the front wheels. The torque of the first driven gear is distributed 50% each to the first output shaft and the second o...	11/04/1997
5452626	Process and device for the automatic adjustment of rotational speed ratios between operating elements of a draw frame Process and device are provided for the automatic adjustment of the rotational speed ratios among the operating elements of a draw frame. The invention utilizes a drive for a draw frame which is less expensive and at the same time achieves a higher degree of a...	09/26/1995
5355742	Device for avoiding flank blacklash in gear trains A device for avoiding gear flank backlash or chattering of first and second gear trains. Each of the gear trains include a plurality of mutually meshing gear wheels. The first gear train has a first initial wheel and a first end wheel. The first initial w...	10/18/1994
5344230	High horsepower hydraulically driven continuous mixing and processing system A mixer or compounder with an elongate barrel having a processing chamber of the configuration of two or more intersecting cylinders receives material at one end and discharges it at the other. Parallel co-rotating mixer shafts extend axially in the chamb...	09/06/1994
5167594	Dynamic phase coupling An actuating mechanism for adjusting the angular relationship of co-axial primary and second drives while both are running comprises a double planetary gear train having a freely rotatable common sun gear (201) and first and second ring gears (213, 223) r...	12/01/1992
5092189	Machine with at least two high operating force working shafts A machine with at least two working shafts, particularly a double-screw extruder machine, comprises associated with each shaft a gear rotated by a drive gear, coaxial to said shaft and gear by way of at least two idle gear wheels acting on said gear and d...	03/03/1992
5031477	Multiple accessory drive gearbox with alternative inputs A gearbox to drive six accessory units from a vehicle prime mover or alternatively from an auxiliary engine. A continuously variable ratio unit in the drive line from the prime mover provides a constant speed at a first input to the power transmission gea...	07/16/1991
5018225	Appparatus for preventing and healing bedsores in long-term inpatients The apparatus for preventing and healing bedsores in long-term inpatients comprises a bed which is supported by four elements arranged in pairs at the longitudinal sides of the bed. Each element is constituted by a tubular upright fixed to the bed frame, ...	05/28/1991
4997414	Torque equalizer for contrarotary shafts A mechanism based on a reduction gear assembly which produces two torques of equal intensity, both counter-rotational, applied to rotating shafts which may or may not be positioned coaxially. This torque force is achieved without transmitting any torque t...	03/05/1991
4932290	Power seat apparatus A power seat apparatus in a vehicle body includes a first shaft through which the rotational torque is transmitted to a first mechaism for moving a front portion of a seat-cushion vertically, a second shaft through which the rotational torque is transmitt...	06/12/1990
4899620	Drive for a double-worm extruder Two worms of a worm extruder are connected to drive shafts of different lengths journaled in a transmission housing. For driving one of the worms, a first gear is keyed to the longer drive shaft and is driven by the motor gear and the electric motor. The ...	02/13/1990
4733737	Drivable steerable platform for industrial, domestic, entertainment and like uses This invention comprises a driveable, steerable platform for industrial, domestic, entertainment and related uses. A frame member travels on a plurality of wheels which can be turned 360° to steer the platform in a desired direction. Separate endless dri...	03/29/1988
4726256	Variable speed transaxle assembly A transmission/transaxle assembly for vehicles such as lawn and garden tractors which includes a housing, a dual input, a constant mesh planetary gear assembly, differential gear, axle, and output gear which transfer the planetary gear output to the diffe...	02/23/1988
4702124	Power transmission device A gear box having two coaxial output shafts. The gear box provides for selectively turning the shafts whereby either the outer and inner output shafts rotate together in the same direction at the same angular velocity, the inner output shaft is rotated wh...	10/27/1987
4682510	High torque drive means for two closely spaced shafts which are also subjected to strong axial thrusts and application thereof to a double screw extruder An apparatus for rotationally driving two closely spaced shafts comprises a driven gear on each shaft and two drive apparatus for driving each of the driven gears. The shafts are constrained to rotate at the same speed by interengaging teeth of the driven...	07/28/1987
4663986	Device for driving multi-drum coiler or un-coiler A device for driving two winding drum shafts which are rotatably supported by the body of a coiler or un-coiler that acts to wind or unwind rolled material. A casing constituting a ring gear frame is disposed at the center of the body, which is revolved i...	05/12/1987
4572277	Arrangement for remote adjustment of the dimensions of a strand during continuous casting A vertical continuous casting mold has a pair of wide walls, and a pair of narrow walls which are received between the wide walls. The narrow walls are translatable back-and-forth, and also pivotable, in order to change the width of a strand cast in the m...	02/25/1986
4504753	Biaxial electrical compact drive, in particular a positioning drive Electrical compact drive, including first and second independently drivable drive shafts, the second drive shaft being in the form of a hollow shaft and the first drive shaft being disposed within the second drive shaft, a first drive motor driving the fi...	03/12/1985
4489625	Split torque transmission A split-torque transmission in which a high-speed engine drives a substantially lower speed drive shaft, such as a helicopter rotor drive shaft, comprises a pair of selectively laterally inclined cross shafts for drivingly connecting a corresponding pair ...	12/25/1984
4470284	Apparatus for adjusting rolls of roll stand An apparatus for positioning a roll of a roll stand has respective adjustment spindles operatively engageable with the ends of the roll and rotatable about respective axes in one direction to advance the respective roll end and in an opposite direction to...	09/11/1984
4429586	Double-oblique-toothed two-stage spur wheel drive In a double-oblique-toothed stage spur wheel drive, the first stage includes a first pinion which drives a first toothed wheel by way of an intermediate wheel. The first stage drives the second stage which includes a second pinion coupled with the first t...	02/07/1984
4389865	Drive system for edger mill An edger mill having a pair of edging rolls mounted for variable positioning apart from each other is powered by a plurality of electric motors driving the rolls from above, having a long shaft extending upwardly from each roll, with a bull wheel connecte...	06/28/1983
4383520	Apparatus for the independent rotation of an aggregate about two axes which are positioned perpendicularly to one another Apparatus for rotation of an aggregate independently about two mutually perpendicular axes, in particular for tracking solar collectors. A stationary first drive mechanism includes a housing, an electric motor, a multi-stage planetary gear set, a spur-gea...	05/17/1983
4351635	Drive system for marine vessels Both gas turbines of a drive system for marine vessels can be selectively connected by related first clutches with drive pinions and during so-called cruising travel, where only one drive unit or machine is operative, additionally via a gearing train with...	09/28/1982
4136580	Power branching transmission A power branching transmission, having two parallel output shafts, each of which carries a rotationally rigidly connected ouptput drive pinion, the output drive pinions being axially offset with respect to one another and each meshing with a respective ro...	01/30/1979
3974719	Mechanical power transmission assembly A mechanical power transmission assembly for starting Stirling engines has a power input shaft driven by a starter motor and a plurality of power take off devices comprising at least two one-way clutches coupled to the shaft, one of which includes a reduc...	08/17/1976

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Class 74/665N - Spur