Pressure and vacuum relief valve mechanism for a fluid storage t

Details Pressure and vacuum relief valve mechanism for a fluid storage t Pressure and vacuum relief valve mechanism for a fluid storage t

1984-12-03

1986-06-10

Nilson, Robert G.

Fluid handling

Control by change of position or inertia of system

With second control

137 43, 1374933, F16K 1736

Patent

active

045937117

ABSTRACT:
A pressure and vacuum relief valve mechanism which can be installed in a vent opening in the top wall of a fluid storage tank. The valve mechanism includes a valve housing with a central bore therethrough. One end of the bore communicates with the vent opening to ambient atmosphere and the opposing end communicates with the interior of the tank above the stored fluid. A valve seat within the bore. A single, integral valve member is movable in the bore of the housing. The valve member has a valve component or head formed thereon cooperably engageable with the valve seat within the bore for relieving excessive vacuum in the tank interior. The integral valve member also includes a valve seat and a cooperating valve head for relieving excessive vacuum in said tank interior. These valving arrangements normally being biased closed. There is a third overturn valve seat and cooperable valve closure component or head normally operable to maintain this valving arrangement open but operable to close the same when the tank is tilted or overturned so as to prevent leakage of stored fluid through the vent opening.

REFERENCES:
patent: 1893942 (1933-01-01), Jensen
patent: 1942630 (1934-01-01), Woodbridge
patent: 2016278 (1935-10-01), Ehlers
patent: 3757987 (1973-09-01), Marshall
patent: 3938692 (1976-02-01), Crute

Affiliated with

Also associated with

Rating

Pressure and vacuum relief valve mechanism for a fluid storage t does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pressure and vacuum relief valve mechanism for a fluid storage t, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressure and vacuum relief valve mechanism for a fluid storage t will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2402949