Patent ID: 9726170
Date: 2017-08-08
CPC Classifications: F04B,F16J

Claim:
1. A rolling diaphragm seal assembly comprising: a first rolling diaphragm oriented in a first orientation; a second rolling diaphragm oriented in a second orientation that is reversed in relation to the first orientation, such that a space is defined between the first rolling diaphragm and the second rolling diaphragm and the first rolling diaphragm and the second rolling diaphragm isolate high pressures and low pressures within a chamber from ambient pressure outside the chamber; and an incompressible fluid disposed within the space and disposed to resist deformation of the first rolling diaphragm and the second rolling diaphragm; wherein at least one of the first rolling diaphragm and the second rolling diaphragm are comprised of a flexible material that is reinforced to be resistant to elongation.