Drain valve device

Details Drain valve device Drain valve device

1988-04-29

1989-10-31

Hepperle, Stephen M.

Valves and valve actuation

Fluid actuated or retarded

Flexible wall expansible chamber reciprocating valve actuator

137203, 251239, 251295, F16K 31126

Patent

active

048772186

ABSTRACT:
A drain valve device mounted on the bottom of a pressure tank for the purpose of disposing of unwanted, accumulated waste liquids in the tank. The valve portion of the device is of a type comprising a stem-mounted disc moving longitudinally against, or away from a valve seat in the process of closing or opening the valve, rspectively. Movement of the stem is achieved by means of a pivotally mounted valve operating lever, or by air pressure. The valve includes as special features thereof limited contact between the disc and the valve seal; a specially positioned valve seat which provides a pressure relief safety feature; a non-jamming spring configuration with positioning means therefore, and a self-aligning stem. In one of the preferred embodiments, a constricted opening is provided in the outlet of the valve to create an audible signal and to reduce loss of pressure when the valve is in its open position, draining the tank.

REFERENCES:
patent: 1636769 (1927-07-01), Forman
patent: 2144427 (1939-01-01), Longstreet
patent: 2710594 (1955-06-01), Thompson
patent: 3675896 (1972-07-01), Mercier
patent: 4030517 (1977-06-01), Pyle
patent: 4431160 (1984-02-01), Burt et al.
patent: 4752445 (1988-06-01), Zell

Affiliated with

Also associated with

Rating

Drain valve device does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-621895