Self-venting drain value assembly

Details Self-venting drain value assembly Self-venting drain value assembly

1989-01-06

1990-01-16

Rivell, John

Fluid handling

Systems

System with plural openings, one a gas vent or access opening

251144, 251351, F16K 2400

Patent

active

048936510

ABSTRACT:
A self-venting valve apparatus using a valve stem rotatably and slidably mounted to a vessel by a collar is disclosed. The stem includes threads at the top and base of the stem which matingly engage internal threads of the collar to hold the stem open or closed. A single gasket seals the gas inlet and liquid outlet in the closed configuration. To drain the fluid, the valve stem is unscrewed so the bottom threads disengage from the collar, the valve stem lowers until the top threads of the valve stem engage the collar, and the top threads are screwed to the collar to secure the valve in the open position. Fluid begins draining through the central passage of the valve stem before gas enters the vessel through the groove in the sidewall of the valve steam to allow proper siphoning. The lower end of the liquid drain passage is placed below the lower end of the air inlet groove, thereby insuring that the liquid drain passage is opened first as the valve stem is lowered. Entering air is isolated from the outgoing water by a riser wall which separates the passage from the groove. The liquid drains through the passage and then exits into a collector knob. The collector knob maintains a regulated and controlled flow resistance through a drain spout.

REFERENCES:
patent: 754618 (1904-03-01), Smith et al.
patent: 1288356 (1918-12-01), Woods
patent: 2046474 (1936-07-01), Maggenti
patent: 2333310 (1943-11-01), Greening
patent: 2405681 (1946-08-01), Woock
patent: 2810398 (1957-10-01), Carlson
patent: 3044504 (1962-07-01), Iketani
patent: 3633625 (1972-01-01), Rudel
patent: 3727638 (1973-04-01), Zaremba, Jr. et al.
patent: 3806085 (1974-04-01), Coda
patent: 3910572 (1974-10-01), Denler
patent: 4025048 (1977-05-01), Tibbitts
patent: 4109829 (1978-08-01), Kuckens et al.
patent: 4314689 (1982-02-01), Wilson
patent: 4440193 (1984-04-01), Matheson
patent: 4457337 (1984-07-01), Andersson et al.
patent: 4611627 (1986-09-01), Eidsvoog et al.
patent: 4708171 (1987-11-01), Cudaback
patent: 4753266 (1988-06-01), Matheson et al.

Affiliated with

Also associated with

Rating

Self-venting drain value assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Self-venting drain value assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-venting drain value assembly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1329066