Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7726438 | Hydraulic system Disclosed is a hydraulic steering system (100) for a vehicle, especially a mobile working machine, comprising at least two steering cylinders (1, 2) within which two cylinder pistons (3, 4) can be displaced, and a first hydraulic pump (14... | 06/01/2010 |
| 7389849 | Steering apparatus with plural motors An apparatus (10) for use in turning steerable vehicle wheels (12, 14) includes first and second piston and cylinder type hydraulic motors (32, 34) which are connected with a central portion of a vehicle. A steering control valve (24) is ... | 06/24/2008 |
| 7369922 | Distributed architecture for a system for managing aircraft landing gear The invention relates to a system architecture for managing aircraft landing gear and suitable for extending/retracting retractable undercarriages, steering steerable wheels, and braking braked wheels. According to the invention, the architecture comprises a communi... | 05/06/2008 |
| 7364004 | Apparatus for use in turning steerable vehicle wheels An apparatus (10) for use in turning steerable vehicle wheels (14, 16) includes a hydraulic power steering motor (12). A pump (26) is operable to supply hydraulic fluid to the power steering motor (12). A gearset (50) is con... | 04/29/2008 |
| 7225894 | Power steering apparatus An engine driven pump 24 is connected with a power steering motor assembly 18. An electric motor 36 drives a pump 34 connected with the power steering motor assembly 18. A control apparatus 38, 44, 52, 62 and 72 effec... | 06/05/2007 |
| 6550566 | Phase maintaining control for a hydraulic steering system A dual counterbalance valve is added in the hydraulic lines between the steering unit and the steering cylinders on an implement to maintain pressure in the steering lines by metering hydraulic fluid to and from the cylinders under pressure so that the st... | 04/22/2003 |
| 6189648 | Power assist steering system A power assist steering system is provided for use on a vehicle that has a steering implement and a steering mechanism operatively connected to a first wheel. The power assist steering system includes first and second vacuum actuators or a double acting v... | 02/20/2001 |
| 6179082 | Hydraulic steering apparatus and method A hydraulic steering apparatus having a small angle of operation, can be minutely and smoothly controlled and requires a small number of operation times. The hydraulic steering apparatus is mounted onto an automatic traveling vehicle and has a pilot valve... | 01/30/2001 |
| 6135232 | Steering axle with hydrostatic two-circuit steering system for agricultural forestry and construction vehicles A steering axle with hydrostatic two-circuit steering system for agricultural, forestry and construction vehicles. The steering axle includes a first double-acting pressure medium cylinder (1) which in the area of its center is connected with an axle brid... | 10/24/2000 |
| 6016886 | Power assist steering system A power assist steering system is provided for use on a vehicle that has a steering implement and a steering mechanism operatively connected to a first wheel. The power assist steering system includes first and second vacuum actuators, a vacuum for provid... | 01/25/2000 |
| 5937966 | Power steering system for construction equipment A power steering system for construction equipment is disclosed. In the steering system, a plurality of internal passages are selectively formed in the directional control valve for left and right steering cylinders. The internal passages thus selectively... | 08/17/1999 |
| 5810110 | Tandem power steering system with heat sink A power steering system for on-the-road and off-the-road vehicles includes a positive displacement hydraulic power steering pump, a master power gear with a rotary valve and a slave power gear mounted in tandem with the master power gear. Heated return hy... | 09/22/1998 |
| 5732789 | Articulated vehicle steering with bogie feedback A steering system for an articulated vehicle (11) including steering cylinders (19, 21) wherein the steering system includes a steering control valve (31) having a housing (33) fixed to a rear bogie portion (15). The steering control valve (31) includes a... | 03/31/1998 |
| 5520262 | Electrohydraulic steering system An electrohydraulic steering system has a three position pilot operated directional valve disposed between a variable displacement pump and a pair of steer cylinders. The directional valve controls the direction of fluid flow from the pump to the steer cy... | 05/28/1996 |
| 5242131 | Steerable landing gear A six wheel, three axle, bogie type main landing gear for an airplane is retractable as a unit and is provided with a rearward set of wheels or a forward set of wheels that is steerable with respect to the non-rotatable bogie beam. The set of wheels turns... | 09/07/1993 |
| 5002143 | Landing gear steering apparatus The steering apparatus of the invention comprises a body (4) containing a crank (8) with actuators (12) associated with the crank and free to pivot about respective pivot axes (14). The actuators co-operate with distribution members including feed circuit... | 03/26/1991 |
| 4773499 | Steerable wheel structure for ground vehicles A vehicle having a fore-and-aft body including transversely spaced apart side walls or supports carries between the supports a forkless steerable wheel and axle structure arranged in conjunction with right and left force-exerting means so that on right-ha... | 09/27/1988 |
| 4749055 | Power steering assembly for a large vehicle A power steering assembly for a large vehicle including a primary booster, an auxiliary booster, a primary hydraulic oil pipe adapted to connect the primary booster to the hydraulic pump, an auxiliary hydraulic oil pipe branched off from the primary hydra... | 06/07/1988 |
| 4531604 | Hydraulic steering synchronization system A hydraulic steering synchronization system for use with straddle-type mobile cranes wherein upon actuation of the system and movement of the steering wheels through a normal side-to-side cycle, the movement of the steering wheels provides a signal to eff... | 07/30/1985 |
| 4424672 | Hydraulic power steering system A hydraulic power steering system has a steering valve which operates in accordance with steering input signals generated by a steering wheel operated metering pump and follow-up signals generated by a pair of follow-up cylinders to effect a desired turn.... | 01/10/1984 |
| 4372413 | Hydrostatic steering device The invention relates to a hydrostatic steering device comprising a servo-motor operable in dependence on direction and a control device having connections for a pump, a tank and the servo-motor as well as a valve arrangement which influences the flow of ... | 02/08/1983 |
| 4172571 | Three actuator steering system A three actuator steering mechanism for rotating a strut type forward landing gear of an aircraft particularly adapted for use in ground steering. The actuators are of a linear push-pull construction and are mounted at both ends by rotatable joints. At on... | 10/30/1979 |
| 4161865 | Steering control with hydraulic follow-up A steering control with a hydraulic follow-up wherein a movable valve member of a control valve is automatically brought back to a nonsteering disposition as a result of the movement of the device being steered to the desired steering position. Movement o... | 07/24/1979 |
| 4136753 | Vehicle power steering system A vehicle power steering system which effects steering with a pair of fluid actuated cylinders, one cylinder being operatively connected to each steerable wheel. Each cylinder is normally powered independently of the other cylinder so that both cylinders ... | 01/30/1979 |
| 4028997 | Motor vehicle steering A fluid power assist type of vehicle steering system having a controlled servo motor assembly operated through a control circuit, and interconnected with the steering linkage, is provided with an auxiliary servo motor assembly through which pressure regul... | 06/14/1977 |
| 3957129 | Steering system A vehicle steering system comprises a set of steering cylinders which, when actuated, effect vehicle steering. The set of steering cylinders comprises at least two proportionately sized cylinders. The proportionate sizing of the cylinders is determined by... | 05/18/1976 |
| 3954148 | Dual hydraulic power steering system with adjusted mechanical advantage and method A dual power steering system has a master and slave steering combination, valve means on the master unit, interconnecting linkage and each unit having a built-in mechanical advantage factor. The mechanical advantage of the master unit is made to be greate... | 05/04/1976 |
| 3946822 | Tracklaying vehicle comprising four tracklaying units A tracklaying vehicle comprises first and second laterally spaced tracklaying units which are spaced apart in a travel direction from third and fourth tracklaying units which are spaced laterally from each other. A substructure which is supported on and l... | 03/30/1976 |
| 3945457 | Hydraulic steering apparatus A hydraulic steering apparatus comprising a sump, a pair of motors controlling the vehicle parts to be steered, a steering wheel operated control device for controlling the motors, a continuously operable pump between the sump and control device, a pair o... | 03/23/1976 |
