Pipe joints or couplings – Essential catch – Leaf spring
Reexamination Certificate
2005-04-28
2008-10-14
Hewitt, James M (Department: 3679)
Pipe joints or couplings
Essential catch
Leaf spring
C285S104000, C285S305000, C285S340000
Reexamination Certificate
active
07434846
ABSTRACT:
A quick coupling (1) comprising a sleeve-shaped coupling body (3) with a receiving opening (4) to receive one end (5) of a pipe (2), a retaining element (7) to hold the end (5) of the pipe in the coupling body (3), a sealing element (8) to seal the pipe (2) against the coupling body (3) and a securing element (9) to secure the connection between the pipe (2) and the coupling body (3), in conjunction with which reinforcing ribs and locking ribs (23,24) are executed adjacent to the receiving opening (4) on an external surface (21) and an internal surface (22) of the coupling body (3), which ribs extend inwards and outwards in a radial direction and interact with the securing element (9) for the purpose of securing the connection between the pipe (2) and the coupling body (3).
REFERENCES:
patent: 2999701 (1961-09-01), Blair et al.
patent: 3177018 (1965-04-01), Goodwin
patent: 3874709 (1975-04-01), MacDonald
patent: 4146254 (1979-03-01), Turner et al.
patent: 4630848 (1986-12-01), Twist et al.
patent: 4635975 (1987-01-01), Campbell
patent: 5603530 (1997-02-01), Guest
patent: 5722696 (1998-03-01), Taneya
patent: 6089620 (2000-07-01), Mota Lopez et al.
patent: RE38204 (2003-07-01), Kazarian
patent: 2003/0127855 (2003-07-01), Heverly
patent: 0 696 342 (1997-01-01), None
patent: 1 215 434 (2005-08-01), None
patent: 2 334 562 (1999-08-01), None
patent: WO 90/08288 (1990-07-01), None
Bachman & LaPointe P.C.
Hewitt James M
Kulm Holding AG
Ripley Jay R
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