Bizarre Patents
An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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| Number | Title | Issue Date |
| 8172060 | Dynamic pressure control system with solenoid valve command current trimming A dynamic pressure control system, such as a transmission pressure control system, is provided wherein one or more of electrical current command signals provided to a pressure control solenoid valve, such as a fast response variable force solenoid pressure control v... | 05/08/2012 |
| 7913828 | Clutch with dual area piston and independent pressure control The present invention provides a clutch having two pistons, a first piston defining a first, smaller area and a second piston, defining a second, larger area. The separate pistons are independently provided with flows of pressurized hydraulic fluid from first and se... | 03/29/2011 |
| 7617919 | Drivetrain for a motor vehicle A drivetrain for a motor vehicle has a friction clutch for transmitting drive torque for the motor vehicle and has an actuator arrangement for actuating the friction clutch. The actuator arrangement has a first actuator which is designed to close the friction clutch... | 11/17/2009 |
| 7430936 | Method for the control of operational sequencing in an automatic transmission of auxiliary construction A method for controlling operational sequencing of gears in an automatic transmission (102) which has been built in an auxiliary mode. In the case of such a shifting transmission it is possible that during the engagement of its transmission gear stage, impact... | 10/07/2008 |
| 7422093 | Magneto-rheological coupling A magneto-rheological coupling (MRC) having an input assembly and an output member. The output member includes a generally cylindrical drum portion and a hub portion extending radially inwardly therefrom. The generally cylindrical drum portion has a low magnetically... | 09/09/2008 |
| 7101310 | Model-based control for torque biasing system A method of controlling a torque biasing system includes determining a torque command, calculating a torque error based on the torque command and a model-based torque. A control signal is generated based on the torque error and the torque biasing system is operated ... | 09/05/2006 |
| 7083033 | Torque transmission apparatus A torque transmission apparatus includes a clutch housing and a clutch hub, a frictional multi-plate clutch for transmitting torque between the clutch housing and the clutch hub, a pressurizing member for bringing the frictional multi-plate clutch into engagement by... | 08/01/2006 |
| 7063199 | Centrifugal clutch A centrifugal clutch includes a housing which is rotatable about an axis, the housing having a plurality of first supporting areas which each extend radially with respect to the axis; a pressing plate which is axially movable with respect to the housing and is coupl... | 06/20/2006 |
| 6896112 | Clutch-actuating device and methods of determining clutch parameters A clutch-actuating device for a clutch in a motor vehicle power train has an actuator motor driving an actuating member and a transfer mechanism which transmits the movement of the actuating member to a clutch release element that is movable against an opposing forc... | 05/24/2005 |
| 6832675 | Flat disk spring assembly for automatic transmissions A disk spring assembly including a flat disk between two angled plates is used in an automatic transmission clutch application. The inner peripheral edge and the outer peripheral edge of the disk are deflected in opposite directions relative to each other by the ang... | 12/21/2004 |
| 6830141 | Friction-based clutch actuation system A friction-based clutch actuation system includes a rotatable input shaft, an output shaft, at least one input clutch plate operatively supported by the input shaft, and at least one output clutch plate operatively supported by the output shaft and moveable thereon.... | 12/14/2004 |
| 6666312 | Modulatable power transmission clutch and a marine transmission A transmission housing having a modulatable power transmission therein which includes a clutch having interleaved clutch plates and having a central power transmitting shaft extending axially through the clutch. The clutch includes a fluid operated movabl... | 12/23/2003 |
| 6619453 | Electromagnetic mechanical particle clutch A torque transfer device is provided that includes an input member for receiving torque from an external source. An output member is disposed radially inward of the input member to define a first torque transferring region therebetween. A second torque tr... | 09/16/2003 |
| 6443286 | Modulatable power transmission clutch and a marine transmission A modulatable power transmission clutch including interleaved clutch plates and having a central power transmitting shaft extending axially through the clutch. The clutch includes a fluid operated movable piston for effecting clutch operation by compressi... | 09/03/2002 |
| 6290043 | Soft start compressor clutch An electromagnetic clutch (10) for an air conditioning compressor includes a generally cylindrical pulley (11) rotatably mounted on a compressor housing (16) and having an annular friction surface (21b), a driven member (12) mounted on a compressor shaft ... | 09/18/2001 |
| 6148980 | Force transmitting assembly A force transmitting assembly is operable between a plurality of engaged conditions and a disengaged condition in which the force transmitting assembly is ineffective to transmit force. The force transmitting assembly includes a primary piston assembly ha... | 11/21/2000 |
| 6123183 | Rotation transmission device A rotation transmission device including a clutch having an inner member, an outer ring, and engaging elements provided between the inner member and the outer ring for selective transmission and shutoff of rotation power between the inner member and the o... | 09/26/2000 |
| 6102829 | Gear change mechanism A vehicle gear change mechanism is provided to enable a gear change to be effected with a conventional gearbox without manually moving the gears. The gear changes are effected by an actuator which is hydraulically powered and is controlled by a control de... | 08/15/2000 |
| 5743366 | Auto-modulating hydraulic circuit and related method Disclosed is a modulating hydraulic circuit for controlling a clutch such as the clutch on a power takeoff (PTO) shaft. The circuit includes a throttling valve having (a) an inlet port for receiving hydraulic fluid from a source, and (b) a discharge port ... | 04/28/1998 |
| 5733217 | Centrifugal friction clutch for automatic speed changing device An centrifugal friction clutch for an automatic speed changing device to changeover speed change stage automatically in accordance with a change of rotational speed is provided. The centrifugal friction clutch has a tubular output shaft 2 fitted on a boss... | 03/31/1998 |
| 5687821 | Wet clutch assembly A spring-engaged wet clutch assembly, particularly suitable for a vehicle main clutch, comprises a stack of interleaved clutch members biassed into engagement by a Belleville spring. The clutch assembly includes hydraulic means for disengaging the stack. ... | 11/18/1997 |
| 5667052 | Hydraulic control system for a synchronizer A hydraulic control system for displacing a synchronizer into engagement with a rotating gear in a gearbox includes a hydraulic piston/cylinder unit mechanically coupled to the synchronizer, an electrically controllable pressure regulating valve for suppl... | 09/16/1997 |
| 5624350 | Automated clutch control and calibration An automated clutch (16) control and calibration method. Clutch control parameter values (TP and AP) corresponding to the clutch touch point condition and the approach point condition, respectively, are determined and are utilized to control reengagement ... | 04/29/1997 |
| 5575367 | Uniform high force clutch A centrifugally-assisted diaphragm clutch having a centrifugal weight pivotally mounted to the pressure plate which contacts the diaphragm spring. During rotation of the clutch, the centrifugal weight contacts and bears against the diaphragm spring exerti... | 11/19/1996 |
| 5279401 | Method for controlling friction clutches or brakes Apparatus with a force- or moment-generating actuating member, operating electromagnetically or electromotively and a mechanical transmission arrangement, rotating of sliding, working on an actuation arrangement of a friction clutch or brake, characterize... | 01/18/1994 |
| 5072814 | Hydraulically operable transmission A hydraulically operable transmission comprises change speed gears, a hydraulic clutch, and a hydraulic circuit for operating the change speed gears and hydraulic clutch. The hydraulic circuit includes a plurality of hydraulic actuators interlocked with t... | 12/17/1991 |
| 4951795 | Modulation valve device A modulation valve device comprising an inlet passage, an outlet passage selectively connected to one of a plurality of hydraulic clutches through a selector valve, an operation chamber to which the inlet and outlet passages connect, a plunger to be moved... | 08/28/1990 |
| 4924983 | Propelling clutch apparatus for a working vehicle A propelling clutch apparatus for a working vehicle comprises a friction type hydraulic clutch mounted on a propelling line, a valve for adjusting an oil pressure applied to the hydraulic clutch, a sensor for detecting angular acceleration of a rotary sha... | 05/15/1990 |
| 4865176 | Modulating inching valve with automatic pressure control Inching valves for providing controlled slow movement of a vehicle normally have a valve mechanism therein to control the pressure level of the fluid being directed to the driving clutch of the vehicle. Upon release of the pedal, a sudden jerk of the vehi... | 09/12/1989 |
| 4744448 | Diaphragm spring clutch cover assembly A clutch cover assembly includes a diaphragm spring acting on a pressure plate through a fulcrum ring which encircles the clutch axis and is disposed in a groove in the pressure plate. The fulcrum ring is a resilient tube. During clutch re-engagements, th... | 05/17/1988 |
| 4676348 | Fluid pressure control system having a timed pressure cutback device A fluid pressure control system including a modulating pressure relief valve is normally needed in a power transmission having clutches that require smooth engagement. It is also desirable in many systems to maintain a difference in fluid pressure levels ... | 06/30/1987 |
| 4676349 | Fluid pressure control system having a pressure cutback device A fluid pressure control system including a modulating pressure relief valve is normally needed in a power transmission having clutches that require smooth engagement. It is also desirable in many systems to maintain a difference in fluid pressure levels ... | 06/30/1987 |
| 4674613 | Electrically controlled transmission soft shifter An electrically controlled valve for automatically controlling the engagement of the clutch in heavy vehicle gear transmissions giving a "soft shifting" action. The position of a three way, three position, pressure actuated, directional valve is controlle... | 06/23/1987 |
| 4623055 | Hydraulic clutch A hydraulic clutch having an annular coned disc spring interposed between a hydraulic piston and a friction material for engaging/disengaging the clutch. An inner peripheral end of the coned disc spring is supported at a position apart from a piston on a ... | 11/18/1986 |
| 4601371 | Alternating current clutch A non-rotatable, axially movable control ring is connected to the ring on the clutch input through a thrust bearing to control engagement and disengagement of the clutch input with the output. The control ring is biased to the clutch disengaged position b... | 07/22/1986 |
| 4567975 | Apparatus and method for controlling the engagement of a gap-type electromagnetic coupling and for alleviating engagement noise An apparatus and method is provided for energizing a multiple-turn winding of an electromagnetic coupling having an armature and a rotor separated by an air gap; in response to the closure of the air gap, the energization of the winding is reduced so as t... | 02/04/1986 |
| 4560047 | Solenoid operated clutch engagement An electrical solenoid operates a three-way valve having a vent port, a port connected to a source of high pressure hydraulic fluid and a port connection to a pilot valve. A check valve supplied from a source of low pressure hydraulic fluid is connected t... | 12/24/1985 |
| 4560044 | Hydraulic pressure modulation device A hydraulic pressure modulation device disposed between a hydraulic pressure source and a selector valve comprising a cylinder; a spool fitted into the cylinder; an accumulator; an actuation chamber formed in the cylinder; a passage openly connecting the ... | 12/24/1985 |
| 4535879 | Control system for controlling the engagement of a pressure-operated actuator A smooth, optimum engagement of a pressure-operated actuator, such as a brake or clutch, is obtained by producing a pulse width modulated signal, having a gradually changing duty cycle, which is then used to control a three-way on/off solenoid valve to wh... | 08/20/1985 |
| 4527681 | Variable speed drive unit with graduated increasing and decreasing speed profile A variable speed drive unit having a clutch disc stack including input and output shafts, a first series of drive plates located in a fluid reservoir and supported for rotation by a rotatable housing of the unit rotated by one of said shafts, a second ser... | 07/09/1985 |
