Check valve with hydraulic damping system

Details Check valve with hydraulic damping system Check valve with hydraulic damping system

1995-06-30

1997-11-11

Rivell, John

Fluid handling

Line condition change responsive valves

Direct response valves

137514, F16K 2110

Patent

active

056853335

ABSTRACT:
A check valve with self-replenishing hydraulic damping system having a main valve chamber with an inlet and outlet and an adjustment valve aperture allowing for communication between the main valve chamber and the exterior of the valve. A valve disk is used to prevent upstream fluid flow when the valve disk is engaged with the valve seat. A biasing spring exerts a continuous upstream force upon the valve disk. A piston, one end of which is attached to the valve disk, the other end of which reciprocates with a fluid-filled cylinder having a servant check valve permitting upstream fluid flow into the cylinder and preventing downstream fluid flow out of the cylinder, alternately forces the cylinder fluid out of the cylinder through a control aperture into the main valve chamber by moving downstream and creates a vacuum within the cylinder by moving upstream, thereby replenishing the fluid within the cylinder. A valve needle in dual reciprocation with the adjustment valve aperture and the control aperture allows for control of the rate at which fluid both enters and exits the cylinder. The cylinder is secured inside the valve by a plurality of flanges.

REFERENCES:
patent: 609726 (1898-08-01), Ball
patent: 1111319 (1914-09-01), Paulsmeier
patent: 2002451 (1935-05-01), Gray
patent: 2339101 (1944-01-01), Parker
patent: 2927604 (1960-03-01), Johnson
patent: 2954047 (1960-09-01), Faltejsek et al.
patent: 3605802 (1971-09-01), Hertell
patent: 3881480 (1975-05-01), Lafourcade
patent: 4398558 (1983-08-01), Cadeddu

Affiliated with

Also associated with

Rating

Check valve with hydraulic damping system does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1221844