Piston-type thermally or pressure activated relief device

Details Piston-type thermally or pressure activated relief device Piston-type thermally or pressure activated relief device

1995-09-26

1997-05-27

Fox, John C.

Fluid handling

Destructible or deformable element controlled

Heat destructible or fusible

137 72, F16K 1738

Patent

active

056322976

ABSTRACT:
A relief device which activates in response either to excess temperatures or pressures in or around a pressurized vessel and which resists extrusion related failures even at high pressures is provided. The relief device includes a body having an inlet, an outlet, and a fluid flow passage communicating with the inlet and outlet. The body further includes a fluid escape passage having a member therein which is porous to gases and liquids but not to solids and a plug of a fusible material which melts at a predetermined temperature positioned adjacent to the porous member. A first piston is positioned in the fluid flow passage and is normally biased into a sealing relationship with the inlet. A second piston is positioned in the fluid escape passage and is normally biased against and applies a compressive force on the plug of fusible material.

REFERENCES:
patent: 1636065 (1927-07-01), Mueller et al.
patent: 1944518 (1934-01-01), Lovehim et al.
patent: 2194541 (1940-03-01), Buttner
patent: 2671461 (1954-03-01), Hebert
patent: 2697915 (1954-12-01), Chisholm
patent: 3040764 (1962-06-01), Feinberg
patent: 3618627 (1971-11-01), Wagner
patent: 3896835 (1975-07-01), Wicke
patent: 4221231 (1980-09-01), Harvey et al.
patent: 4365643 (1982-12-01), Masclet et al.
patent: 4503675 (1985-03-01), Gardner et al.
patent: 4553589 (1985-11-01), Jennings et al.
patent: 4744382 (1988-05-01), Visnic et al.
patent: 4744383 (1988-05-01), Visnic et al.
patent: 4800948 (1989-01-01), Visnic
patent: 5197671 (1993-05-01), Wass et al.
patent: 5223347 (1993-06-01), Lhymn et al.
patent: 5255809 (1993-10-01), Ervin et al.
patent: 5400817 (1995-03-01), Voss et al.

Affiliated with

Also associated with

Rating

Piston-type thermally or pressure activated relief 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 Piston-type thermally or pressure activated relief device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Piston-type thermally or pressure activated relief device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2322471