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

Icon_funbox Bizarre Patents

Patent No. 6745394

Ballistic resistant body covering

A ballistic resistant body covering for protecting the torso, groin and neck area from ballistic missiles.

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 137/625.23 - For plural lines


Subclass of Class 137 - Fluid handling
Definition: Subject matter wherein a plurality of lines downstream of
No. of patents: 186
Last issue date: 10/14/2008


1          
NumberTitleIssue Date
7434653On-demand electro-hydraulic steering system
A hydraulic steering system for a work machine may include a first steering actuator having a first and a second chamber. In addition, the steering system may include a second steering actuator having a third and a fourth chamber. A multi-position directional valve ...
10/14/2008
7367788Pump for antilock braking system in vehicle
A pump including a main body having a piston provided in a portion of the main body, the piston being configured to reciprocate linearly. A piston spring may be provided within the main body and configured to bias the piston toward an end of the main body. Further, ...
05/06/2008
7337804Mixing valves
A single handle mixing valve of the plate valve type where a single stem controls both the temperature and flow output from the valve. A control plate having an opening is positioned over the stem and has at least one surface defining limits of stem movement. An act...
03/04/2008
7322375High bandwidth rotary servo valves
A valve includes a rotating, substantially pressure-balanced spool that selectively aligns openings within the spool with openings within a sleeve to selectively connect ports of a manifold for gas or liquid routing. A valve may also include a stem, a needle coupled...
01/29/2008
7318814Medical suction valve
A valve assembly includes a housing defining an aperture, a passageway, and a branch passage. The branch passage extends from the aperture and intersects and communicates with the passageway. The branch passage is disposed at an angle greater than 90 degrees with re...
01/15/2008
7270132Washer
A washer includes a plurality of washing devices for spraying washing water to an object to be washed from various directions of a washing tub, and a washing water feeding device for feeding the washing water. The washing water is sequentially sprayed from respectiv...
09/18/2007
7231940Control valve for a hydraulic power steering system
A control valve for a hydraulic power steering system includes a pair of flow circuits arranged in parallel. Each flow circuit includes an upstream and downstream flow orifices arranged in series. Each set of orifices defines between the orifices an intermediate pre...
06/19/2007
7152627Control valve for a hydraulic power steering system
A control valve for a hydraulic power steering system includes a pair of flow circuits arranged in parallel. Each flow circuit includes an upstream and downstream flow orifices arranged in series. Each set of orifices defines between the orifices an intermediate pre...
12/26/2006
7093607Methods and apparatus for maintaining pressure gain in a servovalve assembly
A servovalve has a sleeve having both a first metering aperture and a second metering aperture in fluid communication with a single port cavity defined by the servovalve. A spool oriented within the sleeve has a first land and a second land and defines a channel ori...
08/22/2006
7070019Power assisted steering for all terrain vehicle
An all terrain vehicle has a frame carried by a group of wheels. At least one of the wheels is steerably connected to the frame. A steering handle assembly is rotatably connected to the frame. A servo valve has an input shaft connected to the steering handle assembl...
07/04/2006
7059350Airflow controlling mechanism
An airflow controlling mechanism including: a pneumatic cylinder having a cylinder body, an air chamber being formed in the cylinder body, a forward and a backward vents respectively passing through one end of the cylinder body for communicating the air chamber with...
06/13/2006
7047812Pressure regulator with gauge embedded handle
An object of the present invention is to almost completely prevent relative rotation between a pressure gauge and valve main bodies. A gear D is fixed to a pressure gauge guide connected to the pressure gauge. A gear A having the same axis as the gear D is fixed to ...
05/23/2006
7025091Power steering control valve
An improved structure a control valve for a power steering gear includes a valve sleeve having a plurality of lands and a valve core rotatable within the valve sleeve and having a plurality of lands. At least one land of the valve core and at least a pair of lands o...
04/11/2006
7017469Metering device
A metering device of the type in which a shuttle moves axially within a chamber between two terminal positions, with the chamber having fluid inlet and outlet at each end so that fluid may enter through one end to move the shuttle to cause fluid to be ejected throug...
03/28/2006
7000636Valve assemblies for use with a reactive precursor in semiconductor processing
The invention includes chemical vapor deposition methods, including atomic layer deposition, and valve assemblies for use with a reactive precursor in semiconductor processing. In one implementation, a chemical vapor deposition method includes positioning a semicond...
02/21/2006
6971408Power steering system for motor vehicles
A power steering system for motor vehicles, fitted with a rotary disk valve and comprising a reaction piston (1) defining an active (2) and a passive reaction chamber (3). A servo pressure can be fed to the reaction chamber (2) in order t...
12/06/2005
6953450Apparatus and method for administration of IV liquid medication and IV flush solutions
The present invention provides a medical liquid administration apparatus and administration method that are particularly apt for intravenous (IV) applications. More particularly, the administration apparatus and method may be employed in conjunction with the adminis...
10/11/2005
6935372Semiconductor processing reactive precursor valve assembly
The invention includes chemical vapor deposition methods, including atomic layer deposition, and valve assemblies for use with a reactive precursor in semiconductor processing. In one implementation, a chemical vapor deposition method includes positioning a semicond...
08/30/2005
6929088Power steering system
A power steering system includes a rotary slide valve which has a housing, an input shaft and an output shaft which can be rotated relative to each other to a limited extent. A centering piston is provided which is non-rotatably and axially movably connected with th...
08/16/2005
6769451Power beyond steering unit with bypass
An open center fluid controller (15) controls the flow from a pump (11) to a steering cylinder (17) and to a downstream auxiliary device (99) requiring a predetermined minimum flow availability. The open center fluid controller (15...
08/03/2004
6612336Rotary shift valve for servo-assisted steering systems of motor vehicles
A rotary disk valve for motor vehicle power steering systems includes rotary disk which is connected non-rotatably to a valve inlet element. A control bushing is connected non-rotatably to a valve outlet element. These two valve elements are disposed so t...
09/02/2003
6508330Rotating oleodynamic distribution system for the steering of rear axles of vehicles
A hydraulic power steering system for steering rear axles of vehicles comprises a distribution system (10) coupled to a wheel of the rear axle. The distribution system (10) has a core (12) encased in a casing (11) and rotatable to distribute pressurised f...
01/21/2003
6481461Hydraulic pilot control
A hydraulic pilot control system having two control outputs to which a control pressure can be applied and having a hydraulic pilot controller, which has a handle which can be pivoted from a neutral position in a first direction and in a second direction,...
11/19/2002
6470913Balanced rotary servovalve
A rotory servovalve is constructed with a cylindrical annular housing and a cylindrical valve element rotatable therewithin. The valve housing has at least two inlet orifices, at least two outlet orifices, at least two first fluid transfer control orifice...
10/29/2002
6427722Rotary slide set for a hydraulic steering arrangement
The invention concerns a rotary slide set for a hydraulic steering arrangement with an outer rotary slide and an inner rotary slide arranged in the outer rotary slide, and having in its surface tank grooves, which are, at least in predetermined rotary pos...
08/06/2002
6390228Hydraulic power steering apparatus for vehicle
A hydraulic power steering apparatus for a vehicle is provided with a main control valve in which a valve opening degree is controlled on the basis of a relative movement between an input shaft interlocking with a steering wheel and an output shaft interl...
05/21/2002
6349788Power steering apparatus
In a control valve of a power steering apparatus, mutually adjacent longitudinal grooves are formed at an inner surface of a sleeve, and each upper end of longitudinal grooves is arranged in a stagger layout, and each lower end thereof is arranged in a st...
02/26/2002
6305418Hydraulic valve
In a hydraulic valve (10), the housing (34) is composed of plate-shaped segments (36 to 46). Sections of longitudinal channels (96, 97) are formed by recesses having cross-section with a closed edge which overlap or are flush with corresponding channel se...
10/23/2001
6296018Rack and pinion steering system
A fluid power assist rack and pinion steering gear assembly (10) includes a torsion bar (70) having a support portion (80) rotatable within an internal bore (60) of an input shaft (50). A circumferential groove (82) is located on the support portion (80) ...
10/02/2001
6267144Rotary disk valve for power steering systems of motor vehicles
A rotary slide valve (1) for power steering in motor vehicles contains a rotary slide (2), which is non-rotatably connected to a valve inlet member (4). The control bushing (3) is non-rotatably connected to a valve outlet member (5). The two valve element...
07/31/2001
6267133Method for mounting a steering valve with a centring unit
A steering valve (1) for power-steering gears contains two valve elements (4, 8), which are rotatable relative to each other. A corresponding centering unit (16) contains two centering elements (17, 18), which are rotation-fixed relative to the valve elem...
07/31/2001
6254082Rotary valve
A rotary valve is interposed between an intake pump and an exhaust pump for supplying an air, and at least one suction head or one nozzle that performs a predetermined operation upon reception of the air supplied from the intake and exhaust pumps, to supp...
07/03/2001
6250334Centering device for steering valves
The invention concerns a centering device for steering valves of automotive vehicles and is characterized in that a needle roller bearing (16) is arranged between the drive shaft (5) and the valve bushing (12), said needle roller bearing (16) having an ou...
06/26/2001
6250333Servovalve
A servovalve, in particular for hydraulic power-assisted steering systems of motor vehicles, is in the form of a rotary spool valve with a rotary spool and a control bush, which coaxially surrounds the rotary spool and can be rotated against spring force ...
06/26/2001
6240961Hydraulic power steering control valve
A hydraulic fluid control valve (18) for a power steering gear (10) includes first and second relatively rotatable valve members (60, 62) which direct hydraulic fluid to flow between the valve members (60, 62) from inlet ports (70) to outlet ports (92). T...
06/05/2001
6237464Centering mechanism for a power steering control valve
An apparatus (18) includes first and second relatively rotatable valve members (60, 62) and a centering mechanism (120). The valve members (60, 62) are configured to direct hydraulic fluid between the valve members (60, 62) in accordance with their rotati...
05/29/2001
6227244Feedback system for a servo valve system
A reaction arrangement on a hydraulic servo-valve arrangement which is designed in the manner of a rotary-slide arrangement, with a rotary slide and with a control bush coaxially surrounding the rotary slide and rotatable relative to the latter, in partic...
05/08/2001
6216718Control valves for motor vehicle hydraulically-assisted steering
The method makes it possible, in the context of the industrial-scale production of control valves, to reduce the spread on the torque of the valve law P=f(C) which spread is due to machining inaccuracies and other variations in geometric parameters. This ...
04/17/2001
6202694Detent mechanism for a hydraulic power steering gear
A hydraulic power steering gear (10) comprises first and second relatively rotatable valve members (40 and 42). The first valve member (40) has a radially extending first passage (64) and a second valve member (42) partially encircling the first valve mem...
03/20/2001
6196266Multiport diverter valve
A compact diverting valve having a plurality of output ports for supplying various previously mixed hot water and cold water to anyone of a number of output ports. In some instances more than one output port may be supplied with previously mixed hot and c...
03/06/2001
1          
 
Sign InRegister
Username  
Password   
forgot password?