Sewer check valve with cutting seat

Details Sewer check valve with cutting seat Sewer check valve with cutting seat

1986-06-02

1987-01-20

Walton, George L.

Fluid handling

Liquid level responsive or maintaining systems

By float controlled valve

137390, 200 84R, 251 68, 251 74, 251 76, 251 77, 340625, F16K 3102, F16K 1518, F16K 3118, F16K 3300

Patent

active

046374256

ABSTRACT:
In place of one of the usual blunt seats, a sewer check valve has a knife-edge extending from one of the seats to eliminate holding of compressed, relatively tough chunks of sewage between seats by cutting through the chunks, and has room for the cut pieces to move away from the seats. The flap of the valve has a lever extending therefrom, and a spring actuated rod retained by a catch is released to strike against the lever for forcing the flap against the knife-edge. The catch may be released manually, but is preferably released by slightly delayed operation of a solenoid in response to operation of a level sensing device in the housing of the valve.

REFERENCES:
patent: 372494 (1887-11-01), Shepherd
patent: 961738 (1910-06-01), Stickel
patent: 1233659 (1917-07-01), Fox
patent: 1687860 (1928-10-01), Fosnaugh et al.
patent: 1899154 (1933-02-01), Karrick
patent: 1991081 (1935-02-01), Charpier
patent: 2363117 (1944-11-01), Butler
patent: 2904064 (1959-09-01), Davis
patent: 2910079 (1959-10-01), Beeghly
patent: 3381933 (1968-05-01), Derhammer
patent: 3817278 (1974-06-01), Elliot

Affiliated with

Also associated with

Rating

Sewer check valve with cutting seat does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sewer check valve with cutting seat, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sewer check valve with cutting seat will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2130109