Valve

Valves and valve actuation – Reciprocating valve – Diaphragm

Reexamination Certificate

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Details

C251S129170, C251S360000

Reexamination Certificate

active

10503283

ABSTRACT:
A valve body (12) has an inlet opening (22) and an outlet opening (24) interconnected by a fluid passageway (28, 30) having a flow aperture (34). The valve comprises a diaphragm (14) (typically of the duckbill type) that is located across the flow aperture (34) and has slits in a collapsible aperture (39). This prevents backflow from the outlet to the inlet. The valve has an actuator (16) in the form of a plunger for influencing the fluid flow. Also disclosed is a pressure release valve whereby a high pressure on the outlet side can partially collapse the aperture (39) to temporality vent fluid from the high pressure outlet side.

REFERENCES:
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patent: 3155107 (1964-11-01), Woodford
patent: 3822720 (1974-07-01), Souza
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patent: 4426062 (1984-01-01), Bowron
patent: 5244184 (1993-09-01), Larseneur
patent: 5685494 (1997-11-01), Kubach et al.
patent: 5769107 (1998-06-01), Woodruff
patent: 6752375 (2004-06-01), Fukano
patent: 0 167 274 (1986-01-01), None
patent: 2 298 027 (1996-08-01), None
patent: WO 83/02320 (1983-07-01), None
patent: WO 98/01689 (1998-01-01), None
International Preliminary Examination Report, International Application No. PCT/AU00/00659, International Filing Date of Jun. 14, 2000.
International Search Report, International Application No. PCT/AU2004/000329.

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