Fluid handling – Line condition change responsive valves – Pilot or servo controlled
Reexamination Certificate
2005-10-07
2010-06-15
Rivell, John (Department: 3753)
Fluid handling
Line condition change responsive valves
Pilot or servo controlled
C251S030050, C137S492000
Reexamination Certificate
active
07735513
ABSTRACT:
A flush valve for a waste water system comprises a valve including a fluid inlet, a fluid outlet and a main valve element adapted for movement to allow fluid flow between the fluid inlet and the fluid outlet based on a pressure differential across a portion of the main valve element. The valve also includes a vent system comprising a control chamber in flow communication with the fluid inlet of the valve and a vent outlet in flow communication with the fluid outlet of the valve, and a solenoid for venting fluid venting fluid from the control chamber to the fluid outlet. A pressure sensor, such as an electronic pressure transducer, senses the fluid pressure of fluid within the vent system. When a predetermined pressure threshold is reached or exceeded, the solenoid can be energized to release fluid from the control chamber.
REFERENCES:
patent: 4301992 (1981-11-01), Karbo
patent: 4336918 (1982-06-01), Karbo
patent: 4477051 (1984-10-01), Ben-Yehuda
patent: 4787413 (1988-11-01), Saggers
patent: 4797820 (1989-01-01), Wilson et al.
patent: 4893645 (1990-01-01), Augustinas et al.
patent: 5125621 (1992-06-01), Parsons et al.
patent: 5438714 (1995-08-01), Shaw
patent: 5853026 (1998-12-01), Wlodarczyk et al.
patent: 6189563 (2001-02-01), Taylor
patent: 6557580 (2003-05-01), Lohde et al.
patent: 6715506 (2004-04-01), Ikushima
patent: 2002/0167220 (2002-11-01), Cunkelman
patent: 2003/0010390 (2003-01-01), Beck et al.
patent: 2003/0148018 (2003-08-01), Hoffmann et al.
patent: 2006/0076527 (2006-04-01), Bush
I-CON Systems Inc.
McCalister William
Rivell John
The Webb Law Firm
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