Home | Links | Contact Us | More About Intellectual Property | Bookmark

Search patents:

Home

Metal Working

Load-responsive-control-valve

Controller for fluid pressure operated devices

Accordingly, it is an object of the present invention to provide a controller for fluid pressure ...

Insert type sliding gate valve

This invention relates to improvements in the art of sliding gate valves. Sliding gate type ...

Pressure balanced gate valve having selective actuator systems

OF PREFERRED EMBODIMENTS Referring now to the drawings and first to FIG. 1, there is shown a gate ...

On-off valve, particularly for insulation by-pass of exhaust gas expansion turbines of catalytic cracking plants

At present, this operation is carried out by a series of passages due, on one side, to operation ...

Microvalve

Sections of a microminiature valve constructed in layers and having an inlet and a closing element ...

Electromagnetically operable fluid flow control valve mechanism

What is claimed is: 1. A control valve mechanism comprising: a casing assembly defining a chamber ...

Irregular shape rod bending apparatus

OF THE INVENTION Referring now more specifically to the drawings, the numeral 10 generally ...

Semi-automatic pistolled screwdriver with thorny rings

It is an objective of the present invention to improve the above-noted deficiencies of the prior ...

Weatherproof cover assembly for electrical wiring devices

According to the present invention, these and other objects and advantages are achieved in a ...

***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST*** *** NO IMAGES AVAILABLE***

Description:...

Load responsive control valve

Details

Inventors: Budzich, Tadeusz;
Assignee:
Primary Examiner: Michalsky; Gerald A.
Assistant Examiner:
Attorney, Agent or Firm:

A load responsive flow control valve for use in a system controlling a plurality of loads. The system is powered by a single fixed displacement pump equipped with a load responsive bypass valve or a variable displacement pump equipped with load responsive control, which during simultaneous control of multiple loads automatically maintains the pump discharge pressure at a level higher by a constant pressure differential than the pressure required by the largest load being controlled. The load responsive valve is of a four position float type which in the float position while isolating system pump and connecting both of the load chambers to system reservoir blocks pressure sensing ports from inlet chamber and connects them to system reservoir to permit full unloading of the system pump.

DETAILED DESCRIPTION What is claimed is: 1.
A load responsive valve assembly comprising at least one valve housing having an inlet chamber, first and second load chambers, at least one exhaust chamber, and load sensing port means operable through signal conducting passage means to transmit load pressure signal to output flow control means of a pump, direction control means for selectively interconnecting and isolating said chambers and said load sensing port means in a number of control positions including a neutral position and a float position, in said float position said direction control means having means for interconnecting said first and second load chambers with said exhaust chamber, means for isolating said inlet chamber from said first and second load chambers and said exhaust chamber, means on said direction control means for blocking said load sensing port means, and means for connecting said signal conducting means with said exhaust chamber down stream of passages connecting said load chambers with said exhaust chambers.
2.
A load responsive valve assembly as set forth in claim 1 wherein in said neutral position said direction control means includes blocking means operable to block said pressure sensing port means from said first and second load chambers and said inlet chamber, and connecting means operable to connect said signal conducting means to said exhaust chamber.
3.
A load responsive valve assembly as set forth in claim 1 wherein said means for connecting said signal conducting means with said exhaust chamber includes unloading port means and bidirectional blocking means operable to block said unloading port means when said direction control means is displaced in either direction from said neutral position.
4.
A load responsive valve assembly as set forth in claim 1 wherein said means for connecting said signal conducting means with said exhaust chamber includes unloading port means and interconnecting means on said direction control means operable to interconnect said unloading port means and said exhaust chamber in said float position

Related patents

	Laminar stream spout attachment A spout attachment in accordance with the invention provides a laminar stream which is free of turbulence and so soft that it is essentially splash free without aeration....
	Dual arm overhead air supply system What I claim is: 1. A dual arm overhead air supply system for supplying fresh air to a breathing apparatus worn by a worker comprising a main arm rotating around a ...
	Showerhead adaptor means The present invention contemplates a showerhead adaptor device or means which may be readily attached to and receives the water outlet pipe protruding from the shower ...
	Backflow preventer for hand spray We claim: 1. In combination with a plumbing fixture having a vessel capable of containing a body of water having a liquid level; a pressurizable supply line; an output ...
	Sanitary shower with manipulable head and selective outflows We claim: 1. A sanitary shower comprising a shower body, a handle removably securable to the shower body, a head removably securable to the handle, a flexible conduit ...
	Vacuum breaker for faucets In one aspect, the invention provides a faucet housing having a first bore in communication with a fluid inlet and fluid outlet, and a second bore. A valve unit is ...
	Core of solenoid actuator It is an object of the invention to provide a core of a solenoid actuator, which is improved in durability, and at the same time ensures high energy efficiency of the ...
	Engine valve operating system for internal combustion engine However, this initialization method is required to further certainly execute the initializing operation even if the electromagnet type valve operating system employing ...
	Motor driven value The invention claimed is: 1. A motor-actuable valve for influencing the cross section of a fluid duct, the valve including a shaft which is hollow over at least part of ...
	Pneumatically driven train brake pipe pressure exhaust valve This invention, according to a first aspect thereof, is predicated on the development of a new, unique and simplified valve body incorporating a variable orifice type ...

0.064
Archive: All patents - Links Copyright (c)2006 Eipa-patents.org - All rights reserved