Communications: electrical – Condition responsive indicating system – Specific condition
Reissue Patent
2007-05-08
2009-10-13
Trieu, Van T. (Department: 2612)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S611000, C340S618000
Reissue Patent
active
RE040933
ABSTRACT:
A flow sensor having an inlet and an outlet comprising: a plate moving in response to fluid flow therethrough, being displaced further as flow increases; a sensor for determining moving plate's position and creating an electronic signal related thereto; a biasing means for biasing the plate towards the sensor's inlet end. The sensor may include a sealing means for preventing flow therethrough until a specified differential pressure is reached allowing the device to be used as a bypass mechanism. The sealing means may also constitute a check valve means to prevent flow in an undesired direction. The check means comprises: a bullet rod adapted to be received within an orifice defined in a moving plate, such that the bullet rod prevents flow through the orifice until the moving plate is displaced past a terminal end of the bullet rod; and a plate means sealingly and slidingly received within a cylinder, which is closed for a portion of its length and open for another portion of its length, such that flow is prevented until the plate is displaced past the closed portion of the cylinder. The method using the sensor in multipurpose piping systems includes use of the apparatus in a system incorporating at least one fire sprinkler, the piping system also preferably providing at least one other use in the structure. The other use in the structure may be supplying domestic needs, or supplying heating/cooling water for a heating/air conditioning system.
REFERENCES:
patent: 3762442 (1973-10-01), Paul
patent: 3876009 (1975-04-01), Johnson
patent: 3939914 (1976-02-01), Carroll
patent: 3998273 (1976-12-01), Juliano
patent: 4096747 (1978-06-01), Gilson
patent: 4286667 (1981-09-01), Westenhofer et al.
patent: 4573361 (1986-03-01), Kobold
patent: 4791414 (1988-12-01), Griess
patent: 4805701 (1989-02-01), Mountford
patent: 5056712 (1991-10-01), Enck
patent: 5085076 (1992-02-01), Engelmann
patent: 5139044 (1992-08-01), Otten et al.
patent: 5228469 (1993-07-01), Otten et al.
patent: 5236002 (1993-08-01), Martin et al.
patent: 5305735 (1994-04-01), Welden
patent: 5368474 (1994-11-01), Welden
patent: 5390744 (1995-02-01), McHugh
patent: 5396745 (1995-03-01), Klein
patent: 5419203 (1995-05-01), Carmichael
patent: 5483838 (1996-01-01), Holden
patent: 5546801 (1996-08-01), Swinson et al.
patent: 5720351 (1998-02-01), Beukema et al.
patent: 5890657 (1999-04-01), Ponte
patent: 5893418 (1999-04-01), Ponte
patent: 5988264 (1999-11-01), Goldsmith
patent: 6026907 (2000-02-01), Pahila
patent: 6113642 (2000-09-01), Petrofsky et al.
patent: 6276460 (2001-08-01), Pahila
patent: 6516893 (2003-02-01), Pahila
patent: 6889774 (2005-05-01), Multer et al.
Residental Domestic Shutoff Valve, Automatic, Sep. 1, 1993.
Potter Publication, VSR-F (Vane Type Waterflow Alarm Switch with Retard), Nov. 1, 1995.
Potter Puplication, WSFR-F (Waterflow Alarm Switch with Retard), Dec. 1, 1995.
EnerCon, Tri-Water systems, Enginerring Instruction Manual 216-E-2, circa 1980.
Gems Sensors, Liquid Level Flow and Pressure Sensors Catalogue.
Series 007 Double Check Valve Assembly brochure, circa 1997.
Potter Marketing Brochures showing flow meters with alarm outputs.
Series 07S Residential Fire Sprinkler System Duel Check Backflow Preventers brochure.
Trieu Van T.
White Edward L.
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