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| Number | Title | Issue Date |
| 7235026 | Utility machinery and associated control arrangements A method is provided for bearing a pitch or grip of a belt running between a pair of opposing faces of respective first and second sheave members of a power transmission device. The method includes moving the second sheave member axially in relation to the first she... | 06/26/2007 |
| 7048658 | Device for converting a rotational movement into an axial movement A device for converting a rotational movement into an axial movement includes driven planetary rollers (10) and a sliding body (5) that can be axially displaced by means of the planetary rollers (10). The planetary rollers (10) are fixed ... | 05/23/2006 |
| 7004860 | Belt type infinite variable-speed drive A belt type infinite variable-speed drive using a ball-screw mechanism is compact and noise-free. A nut of the ball-screw mechanism is fixed to a casing and a threaded shaft is rotatably coupled to a movable pulley member through a ball bearing so that ball circulat... | 02/28/2006 |
| 6962542 | Continuously variable transmission and pulley A transmission includes a set of pulleys, in which at least one disc is axially displaceable and provided with cylinder piston elements. The cylinder/piston elements include at least one pressure chamber with radial walls and concentric cylinder walls and at least o... | 11/08/2005 |
| 6752259 | Fixed shaft cat drive A gear reducer having a hollow shaft is telescopically mounted on the upper end of a vertical conveyor drive shaft. The gear reducer is removed for repair by raising the gear reducer housing to separate the hollow shaft from the drive shaft while the drive shaft rem... | 06/22/2004 |
| 5823903 | Pulley The invention relates to a pulley, in particular for a continuously variable transmission, provided with two sheaves on a pulley shaft, the sheaves being non-rotationally fixable on the pulley shaft, and at least one sheave being axially movable relative ... | 10/20/1998 |
| 5304098 | Adjustable sheave An adjustable sheave including at least one pair of annular belt grooves defining annular discoidal flange members relatively movable on an end threaded hub support through an annular adjusting ring threadedly mounted on the threaded hub support end, the ... | 04/19/1994 |
| 5221235 | Pulley assembly for a continuously variable transmission In a continuously variable belt transmission wherein each of primary and secondary pulley devices consists of a stationary pulley and a movable pulley, and wherein the movable pulley is furnished with a hydraulic servo system having a cylinder which is co... | 06/22/1993 |
| 5172786 | V belt type automatic transmission system Several embodiments of snowmobiles driven by an engine and variable belt transmission mechanism wherein the variable belt transmission has its input shaft journaled for rotation in the crankcase of the engine and driven from the engine crankshaft through ... | 12/22/1992 |
| 5052981 | Variable diameter pulley with centrifugal weights In a variable speed transmission of the pulley type, one of the pulley cheeks is movable axially with respect to the other which is stationary. The movable cheek faces a reaction cup which is solid with the stationary cheek. The cup and the movable cheek ... | 10/01/1991 |
| 5048302 | Refrigerant system having controlled variable speed drive for compressor A refrigeration system includes a compressor, a motor, variable pitch pulleys mounted on the ends of the compressor and motor shafts, and an endless belt looped around the motor and compressor pulleys for drivingly connecting the motor to the compressor. ... | 09/17/1991 |
| 4976657 | Belt-type stepless speed shifting apparatus A belt-type stepless speed shifting transmission consisting of: (1) an input section having an input shaft with a rotational axis, a stationary pulley piece fixedly mounted on the input shaft, a pulley piece mounted on the input shaft and movable axially ... | 12/11/1990 |
| 4946423 | Infinitely variable transmission In an infinitely variable transmission with discs (1, 2) the movable disc (2) is connected to a cylinder wall (11), which together with a piston (3) encloses a fluid filled cylinder space (4). A sealing ring (6, 15, 17) provides one or more calibrated ope... | 08/07/1990 |
| 4943264 | Centrifugal clutch with belt tightening spacer assembly An automatic variable speed centrifugal clutch with belt tightening assembly is characterized by even transmission of rotational drive to a pair of belts and includes a rotating spindle and clutch plate having an adjustable centrifugally operable belt tig... | 07/24/1990 |
| 4943265 | Device for transmitting an adjustable position of a drivebelt pulley in a continually variable transmission A device for transmitting the position of a drivebelt pulley of a continually variable automatic transmission to a valve arrangement includes a lever assembly extending between the valve and a variable displacement abutment connected to a sensor foot cont... | 07/24/1990 |
| 4909776 | Continuously variable transmission One of bolt section or a nut section on a ball screw devices, or nut sections (for example) are connected to gear sections axially movable, while the bolt sections are connected to a stationary element, so that relative rotation is given to the bolt secti... | 03/20/1990 |
| 4881926 | Stepless speed variator of a belt type Rotation speed of automotive auxiliary machines is controlled by a drive pulley provided on a crank shaft and a driven pulley communicating with the drive pulley through a V-belt. The drive pulley comprises a rigid pulley secured on a drive shaft, a guide... | 11/21/1989 |
| 4854919 | Infinitely variable transmission with a corrected pulley alignment Infinitely variable transmission comprising a primary pulley fitted on a drive-shaft and a secondary pulley fitted on a driven shaft, both pulleys consisting of two conical opposed discs of which one is movable along the shaft on which it is fitted, a V-b... | 08/08/1989 |
| 4739850 | Walking operator type agricultural machine having transmission system with disk type frictional stepless change speed apparatus An agricultural machine has two power transmission lines, one of which includes a disk type frictional stepless change speed apparatus and the other of which includes a belt transmission apparatus. The disk type frictional stepless change speed apparatus ... | 04/26/1988 |
| 4322934 | Lawn mower The present invention is directed to a lawn mower wherein a lawn mower body frame includes a motor and an operatively connected transmission. The lawn mower motor body frame is supported by front and rear wheels. At least the rear wheels are independently... | 04/06/1982 |
| 4160456 | 2-Speed rotor gear case A dual speed gear case mechanism adapted to drive the rotor of an axial flow combine and which receives its power from the combine engine. The mechanism includes a housing which is tiltably mounted on the chassis of the combine and has a rearwardly projec... | 07/10/1979 |
| 4130172 | Electric vehicle An electric motor vehicle drive system including a differential electric motor unit for the vehicle including a stator motor element mounted within a supporting frame and a rotor motor element rotatably mounted within the stator. The stator is connected t... | 12/19/1978 |
