Quotables
"Man will not fly for 50 years."
Wilbur Wright ; 1901
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.
| Number | Title | Issue Date |
| 7353651 | De-stroking dual hydrostatic pump A zero turning radius mower has a dual hydrostatic pump with right and left pump arms. A linkage between the pump arms and a pair of control levers destrokes both sides of the pump simultaneously if engine speed drops below a specified value. The linkage allows each... | 04/08/2008 |
| 5277269 | Engine revolution speed control device for a hydraulically driven vehicle An engine revolution speed control device according to the present invention comprises: a hydraulic pump (1) which is driven by an engine (21); a hydraulic motor (4) for vehicle movement which is driven by oil expelled from the hydraulic pump (1) during v... | 01/11/1994 |
| 4667472 | Electric integrated actuator with variable gain hydraulic output This invention relates to integrated electro-hydraulic actuators for use aboard aircraft or elsewhere. A balanced, double-acting hydraulic ram or motor (12) is connected between a support (16) and a member to be moved relative to the support. The ram incl... | 05/26/1987 |
| 4630441 | Electrohydraulic actuator for aircraft control surfaces This invention relates to small-sized electrohydraulic actuators for use in adjusting aircraft control surfaces. A problem associated with such actuators is that they must be of a light-weight and efficiently packaged design. The present invention is desi... | 12/23/1986 |
| 4542802 | Engine and transmission control system for combines and the like A control system is provided for a combine or other vehicle having an engine for driving both the ground wheels of the vehicle and at least one auxiliary mechanism, such as the crop-processing mechanisms of a combine. The engine is coupled to the ground w... | 09/24/1985 |
| 4483663 | Output speed droop compensating pump control The output speed droop compensating control is associated with a variable displacement pump connected to a motor in a fluid system. The pump has a swash plate urged in one direction by a hydraulic fluid pressure moment acting through the pistons of the pu... | 11/20/1984 |
| 4399653 | Automatic adjusting deceleration control for a hydrostatically powered device A hydrostatic drive with an automatic adjusting deceleration control device and method for accomplishing the same. The drive includes a prime mover, a variable displacement hydraulic pump, a hydraulic actuator for driving a load through an operating cycle... | 08/23/1983 |
| 4194361 | Electro-mechanical control system for hydraulic displacement pumps, such as swash plate or eccenter pumps To permit mechanical override of an electrical command system to control deflection of the swash plate or eccentricity of an axial or radial piston pump, for example upon failure of the electrical control system, a group of valves 5-8 are connected to an ... | 03/25/1980 |
| 4007592 | Power transmission A speed controller for a rotary pump and motor hydraulic power transmission comprises a pair of pulse generators, one driven at a reference speed and the other proportionally to motor speed. An algebraic summing circuit connects the two pulse generators t... | 02/15/1977 |
| 3995831 | Force feedback controlled winch A cable winch control having means for sensing the magnitude of the load in elation to the torque being delivered by the power means to the winding drum. The sensed signal is fed back to a manual controller for the drum winding means, to alert the operator... | 12/07/1976 |
| 3959967 | Reciprocating apparatus particularly for pump unit A system is provided for maintaining a permanent reciprocatory movement of a mechanical arrangement, particularly a pump unit. A main driving wheel is coupled to the mechanical arrangement and fastened on the shaft of a hydraulic motor which is supplied b... | 06/01/1976 |
