Low stress to seal ePTFE gasket material

Details Low stress to seal ePTFE gasket material Low stress to seal ePTFE gasket material

2008-04-22

2008-04-22

Vo, Hai (Department: 1794)

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

C428S318600, C428S319300, C428S319700, C428S317900, C277S608000, C277S626000

Reexamination Certificate

active

07361398

ABSTRACT:
A low stress-to-seal gasket material is described. Gaskets made according to the present invention comprise at least two tapes of porous PTFE and a substantially air impermeable layer at the interface of the two tape layers. The tape layers each have a non-porous region extending the tape length and separating two porous regions. The non-porous regions of at least two tape layers are not aligned in the z-axis direction.

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patent: 2003/0003290 (2003-01-01), Hisano et al.
patent: 01/11274 (2001-02-01), None
patent: WO 01/27501 (2001-04-01), None

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