US Patent No: 5,769,387

Number of patents in Portfolio can not be more than 2000

Flow valves operated by flow transfer means which regulate small flows of control

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ATTORNEY / AGENT: (SPONSORED)
 

Importance

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Abstract

A flow valve operated by a flow transfer controller which regulates a small flow of control in order to produce a pressure differential between the sides of a sealing wall of a piston able to axially move between an open position far from the valve seat and a closed position in contact with the valve seat. The valve of the invention basically consists of a rigid valve body with an opening for a flow inlet and flow outlet. The body of the valve has a main cavity between the inlet and outlet of flow with the valve seat. The valve body comprises an elastomeric body located inside the main cavity to regulate the flow of fluid through the valve. The elastomeric body is hollow and open at an upper end and has a first sealing zone an a lower base of the elastomeric body. Control flow inlet and outlet ducts communicate with the hollow upper portion of the elastomeric body to actuate the valve.

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First Claim

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Patent Owner(s)

  • Assignment data not available. Check USPTO

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Perez, C Sergio Estado 235, Of 511, Santiago, CL 3 17

Cited Art

Patent Info (Count) # Cites Year
 
BARMAD (1)
4,221,361 Diaphragm valves 16 1978
 
MEYER MANUFACTURING COMPANY LIMITED (1)
5,383,646 Diaphragm control valve 19 1994
 
SOCIETE D'EXPLOITATION DE BREVETS POUR L'INDUSTRIE ET LA MARINE (1)
4,872,639 Pilot-control safety valve 3 1988

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH (5)
7,044,432 Fluid channel valve for use with a disposable cartridge in extracorporeal circulations 7 2001
8,142,653 Medical fluid cassettes and related systems 0 2009
8,377,293 Dialysis fluid cassettes and related systems and methods 0 2011
8,435,408 Medical fluid cassettes and related systems 0 2012
8,366,921 Dialysis systems and related methods 0 2012
 
MFC SYSTEMS, LLC (1)
7,121,522 Device for the regulation of flow applied to flow valves working under pressure differential 0 2004
 
SPIRAX SARCO, INC. (1)
7,070,394 Gas pressure driven fluid pump having pilot valve controlling disc-type motive and exhaust valves 0 2002
 
WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORPORATION (1)
6,752,378 Valve assembly with integral seat 0 2002
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (4)
6,685,166 Valve assembly 0 2001
6,626,415 Valve assembly 0 2001
D480449 Control valve 5 2002
8,316,878 Servo-operated valve 0 2006