Fluoropolymer diaphragm with integral attachment device

Details Fluoropolymer diaphragm with integral attachment device Fluoropolymer diaphragm with integral attachment device

F - Mech Eng,Light,Heat,Weapons

16

J

F16J 3/02 (2006.01) F04B 43/00 (2006.01)

Patent

CA 2309567

A pump diaphragm includes a layer fabricated from polytetrafluoroethylene (PTFE) and an integral stud. In one embodiment, the stud is encapsulated within a hub assembly fabricated from PTFE and fastened to the PTFE layer with adhesive or welding, etc. In alternate embodiments, the stud may be molded in-situ with the PTFE layer using various methodology, including pressing the stud onto a heated PTFE layer. The PTFE layer then may be subjected to various forming operations to provide the diaphragm with desired dimensions and/or properties. Moreover, an additional layer or layers, such as an elastomeric layer, may be laminated onto an inside surface of the PTFE layer to provide a composite pump diaphragm.

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