Fluid handling – Processes
Patent
1996-01-05
1997-10-21
Rivell, John
Fluid handling
Processes
13711805, 13724725, 13762411, E03C 1296
Patent
active
056785887
ABSTRACT:
A sewer line multiple trap priming system comprises a house line and a plurality of branch lines all communicating with each other and supplied with water under pressure. A plurality of makeup priming water lines are connected, one to each of the traps. In all but one of the branch lines pressure sensitive valves interconnect the branch lines and the makeup priming water lines. Upon a change in pressure in the branch lines by a predetermined increment, these valves are operable, to inject a charge of priming water into the priming water lines and hence into the traps. In said one of the branch lines, from time to time valve means withdraws water from the communicating branch lines in amount sufficient to exceed the pressure change increment and thereby operate the pressure sensitive valves. This insures the transmission of an adequate charge of priming water to the traps at all times.
REFERENCES:
patent: 3134392 (1964-05-01), Goss
patent: 3333597 (1967-08-01), Sullivan
patent: 3776269 (1973-12-01), Watts
patent: 4497337 (1985-02-01), Mosbrucker et al.
patent: 4589435 (1986-05-01), Aldrich
patent: 4942896 (1990-07-01), Slusser
patent: 5253670 (1993-10-01), Perrott
patent: 5441070 (1995-08-01), Thompson
Dowdican Frank W.
Perrott Charles H.
C.H. Perrott, Inc.
Farley Eugene D.
Rivell John
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