Pipe joints or couplings – With means blocking release of holding means
Reexamination Certificate
2005-03-08
2005-03-08
Hewitt, James M. (Department: 3679)
Pipe joints or couplings
With means blocking release of holding means
C285S087000, C285S308000, C285S319000, C285S322000
Reexamination Certificate
active
06863314
ABSTRACT:
A coupling for a tube having a coupling body with a throughway open at one end to receive an end portion of a tube, a sealing ring or rings mounted in the coupling body at a location spaced from said open end thereof to engage and seal with the outer periphery of the tube, and a tube latching device for locking a tube in the coupling body. The latching device comprises a first latch within the coupling body to engage automatically with a feature on the tube when the tube end portion has been inserted sufficiently into the throughway to engage with the seals to retain the tube end portion in the coupling body and a second manually operable latch disposed externally of the coupling body engageable with a feature on the tube when the end portion of the tube has been inserted into the coupling body sufficient for the first latch to engage to provide a secondary retention for the tube in the coupling body.
REFERENCES:
patent: 742655 (1903-10-01), Homola
patent: 996079 (1911-06-01), Greenlund
patent: 3858915 (1975-01-01), De Vincent et al.
patent: 4648630 (1987-03-01), Bruch
patent: 5251940 (1993-10-01), DeMoss et al.
patent: 5344194 (1994-09-01), Hatagishi et al.
patent: 5395140 (1995-03-01), Wiethorn
patent: 5401063 (1995-03-01), Plosz
patent: 5443289 (1995-08-01), Guest
patent: 5607193 (1997-03-01), Guest
patent: 5628531 (1997-05-01), Rosenberg et al.
patent: 5649724 (1997-07-01), Wiethorn
patent: 5658020 (1997-08-01), Carman et al.
patent: 5779279 (1998-07-01), Bartholomew
patent: 5915738 (1999-06-01), Guest
patent: 5931509 (1999-08-01), Bartholomew
patent: 5934713 (1999-08-01), Guest
patent: 5988693 (1999-11-01), Street
patent: 6082779 (2000-07-01), Lesser et al.
patent: 6290264 (2001-09-01), Inoue
patent: 0 756 125 (1997-01-01), None
patent: 0 829 671 (1998-03-01), None
European Patent Office Search Report dated Nov. 29, 2002.
European Patent Office Communication pursuant to Article 92(2) EPC dated Jul. 30, 2003.
Baker & Daniels
Hewitt James M.
John Guest International Limited
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