Pipe joints or couplings – With assembly means or feature – Particular tool-engaging means or with tool
Reexamination Certificate
2006-12-14
2010-12-14
Hewitt, James M (Department: 3679)
Pipe joints or couplings
With assembly means or feature
Particular tool-engaging means or with tool
C285S243000, C285S323000, C285S340000
Reexamination Certificate
active
07850208
ABSTRACT:
A stamped collet for a push-to-connect tube coupling formed into a generally cylindrical configuration. The collet has an annular base portion from which flexible tines extend forward from the base portion, the flexible tines being circumferentially arranged around a center axis of the collet and including inwardly inclined distal finger portions terminating at a biting edge. The flexible tines can flex outwardly to permit axial insertion of a tube through the collet. At least one of the flexible tines has at least one cam wing that extends radially outwardly from a side of the tine and has a radially outwardly inclined cam surface. The cam surface can be engaged by a corresponding cam surface of a retainer to urge the tine radially inwardly with the biting edge biting into an outer surface of the tube for preventing the tube from being pushed out or pulled out of a coupling.
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Hewitt James M
Parker-Hannifin Corporation
Renner , Otto, Boisselle & Sklar, LLP
Ripley Jay R
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