U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Celebrity Inventors

Walt Disney was no Mickey Mouse inventor. He devised a serious animation camera which he patented. With the device, his company created "Snow White".

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 74/361 - Single forward and reverse


Subclass of Class 74 - Machine element or mechanism
Definition: Transmissions wherein there are a plurality of manually
No. of patents: 22
Last issue date: 12/05/2006


NumberTitleIssue Date
7144349Gas turbine gearbox
A gearbox for rotating a propeller in a selected one of a first and second direction is provided. The gearbox includes a many common components, selected irrespective of desired propeller direction, and a few unique components selected based on desired propeller dir...
12/05/2006
7021168Gearbox embodied with a layshaft
A selector transmission with countershaft design is described which comprises one input shaft (2), one output shaft (3), one main shaft (4) situated therebetween and one countershaft (5) interacting with the main shaft (4), shiftab...
04/04/2006
6223613Preload constant mesh gearbox
An improvement to gear systems, the improved gear system characterized by at least one gear-wheel (42c) provided about a shaft (34), the shaft (34) and the or each gear-wheel (42c) being provided with a actuable engagement therebetween in both rotational ...
05/01/2001
6024198Dual clutch reverser actuating mechanism
A dual clutch forward/reverse unit includes a pair of spring engaged clutch units and a pair of lifter pins, each pin operable to disengage a corresponding one of the clutches. An actuator mechanism for the forward/reverse unit includes a housing, a shaft...
02/15/2000
5466996Electromechanical remote-control device
The remote-control device features a servomechanism that transmits the movements of a first control cable or tie rod, which is connected to handgrip or control pedal, to a second cable or tie rod which is connected to an application. The servomechanism fe...
11/14/1995
5408896Power transmission drive system
A pivotable actuator for changing the condition of a mechanical power transmission system between neutral, engaged and disengaged states. The transmission system comprises rotary shafts each having a clutch mechanism and a clutch actuator for engaging and...
04/25/1995
5388473Bearing arrangement for heavy duty marine transmission
A bearing arrangement for the drive pinion of a marine transmission or the like reduces deflections of the shaft on which the pinion is mounted. The bearing arrangement mounts the pinion in part on the shaft and in part directly on the transmission housin...
02/14/1995
5280731Constant-mesh transmission with a chain drive and double disconnect reverse
The constant-mesh transmission includes a gear case, an input shaft, a counter shaft and an output shaft. An input drive gear integral with the input shaft meshes with the counter shaft drive gear. First, second and third speed counter shaft gears are int...
01/25/1994
5199317Forward and reverse power shift transmission
A forward and reverse power shift transmission (10) with an enclosed gear se (38) and a torque converter housing (44) is adapted to be connected to an engine bell housing (12). An input shaft (46), a lay shaft (146) an output shaft 36 and a pump driveshaf...
04/06/1993
5085302Marine reverse reduction gearbox
A marine reduction gearbox, or transmission, is provided with variably engageable clutches connected in torque transmitting relation between a prime mover and a propeller shaft. These variably engageable clutches permit the prime mover to be connected to ...
02/04/1992
4949587Reverse gear mechanism for vehicle gear transmission
A reverse gear mechanism in a vehicle gear transmission having a first shaft, a second shaft, and gear trains associated with the first and second shafts for transmitting the torque from one of the first and second shafts to the other. The reverse gear me...
08/21/1990
4820209Torque converter marine transmission with variable power output
A fluid coupling is provided in a marine drive between the engine and the propulsion unit. The fluid coupling includes a fluid pump adapted to be driven by the crankshaft of the engine, and a turbine adapted to be driven by the fluid pump. A series of rea...
04/11/1989
4805473Bi-directional torque transmission unit
A bi-directional torque transmission unit (1) comprises an input shaft (2) connectable to a prime mover and provided with an input drive gear wheel (3), first and second driven shafts (4, 4A) each having a driven gear (5, 5A) constantly in mesh with the i...
02/21/1989
4735104Drive transmission unit for equal forward and reverse speeds, in particular for a ship drive
An input shaft is keyed to a first bevel gear, in constant mesh engagement with a second bevel gear keyed to a countershaft and rigidly associated with a first clutch, for causing a first pinion to become rotatively engaged with or disengaged from the inp...
04/05/1988
4601640Oil well pump
An oil pump assembly having an adjustable production rate and capable of long stroke, low stroke per minute pumping rates, comprising a reciprocating pumping rod in a well hole, a counterbalancing mechanism for reducing the power needed to pump oil by the...
07/22/1986
4489622Dual wet output clutch for power selection in a continuously variable transmission
A dual wet output clutch for a continuously variable transmission which acts as a starting clutch upon a signal from a throttle induced hydraulic fluid supply to connect the transmission with the vehicle wheels and replaces a mechanical forward-neutral-re...
12/25/1984
4489621Dual wet output clutch for power selection in a continuously variable transmission
A dual wet output clutch for a continuously variable transmission which acts as a starting clutch upon a signal from a throttle induced hydraulic fluid supply to connect the transmission with the vehicle wheels and replaces a mechanical forward-neutral-re...
12/25/1984
4484488Forward-reverse changeover apparatus for working vehicle
A forward-reverse changeover apparatus for working vehicles which comprises frist and second multiplate clutches, and an input shaft and an output shaft arranged concentrically with and separated from each other. Output gears extending from the first and ...
11/27/1984
4442728Clutched multiple branch gear transmission system and method
A transmission includes multiple lay shaft branches driven by gearing on an input shaft. Each lay shaft branch engages a common output gear and includes a clutch. The input shaft is journalled within a hydraulically adjustable bearing which controls input...
04/17/1984
4271723Power train with an auxiliary creeper drive system
A power train with an auxiliary creeper drive system is disclosed which includes an engine, a primary transmission having an output shaft selectively driven by the engine, an auxiliary transmission selectively driven by the engine and operatively associat...
06/09/1981
4242920Marine reversing gearing
A marine reversing gearing having a drive shaft, a forward clutch, a forward pinion coaxially arranged with respect to the drive shaft and capable of being coupled therewith by means of the forward clutch for forward travel. Two intermediate gears continu...
01/06/1981
4138006Power transmission of the interleaved, multiple friction plate clutch type
A power transmission of the type having an interleaved, multiple friction plate clutch in which helical cam elements are used to provide clutch plate clamp up force and transmit driving torque between the parts. In one form of such a transmission where th...
02/06/1979
 
Sign InRegister
Username  
Password   
forgot password?