Sealing device

Details Sealing device Sealing device

1977-02-14

1979-01-23

Rosenthal, Arnold

Valves and valve actuation

Fluid actuated or retarded

Flexible wall expansible chamber reciprocating valve actuator

251172, 250315A, F16K 710

Patent

active

041356985

ABSTRACT:
A sealing device which can open or seal a gap between two spaces that are maintained at different pressures has two members provided with surfaces flanking the gap and a seal which is received in a recess provided in one of the surfaces and extending transversely of the gap. The seal has a first section constituting a diaphragm or a hose which is secured to the recessed member and a second section resembling a flap integral with but pivotable relative to the first section at that side of the first section which is nearer to the low-pressure space. The first section is deformable in response to admission of pressurized fluid against one of its sides whereby the other side moves the flap, or at least the free marginal portion of the flap, against the surface of the non-recessed member. Once the flap is moved to the sealing position, that side thereof which faces away from the gap is or can be exposed to the action of pressurized fluid in the high-pressure space so that the flap continues to sealingly engage the non-recessed member even if the application of fluid pressure against the one side of the first section of the seal is terminated.

REFERENCES:
patent: 1476344 (1923-12-01), McGee et al.
patent: 2370751 (1945-03-01), Prager
patent: 3145969 (1964-08-01), VON Zweck
patent: 3371493 (1968-03-01), Woolley

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2269682