Pipe joints or couplings – With assembly means or feature – Particular tool-engaging means or with tool
Reexamination Certificate
2005-11-15
2005-11-15
Hewitt, James M. (Department: 3679)
Pipe joints or couplings
With assembly means or feature
Particular tool-engaging means or with tool
C285S321000, C285S320000
Reexamination Certificate
active
06964435
ABSTRACT:
A coupling for connecting hydraulic ducts has a first coupling element (1), in the form of a female coupling, with a receptacle (3) and a first locking face (10), and a second coupling element (2), in the form of a male coupling, The second coupling element (2) has an annular groove (9) that forms a second locking face (27) insertable into the receptacle (3). Several locking elements (10) are arranged in the annular groove (9). The locking elements (10) are held in the annular groove (9) and can be pivoted between a locking position and a releasing position. In the coupled condition of the coupling elements (1, 2), the first locking face (24) is axially supported on the second locking face (25). An unlocking sleeve (28) is displaceable between a locking position and a releasing position on the second coupling element (2). By moving the unlocking sleeve (28) from the locking position into the releasing position, the locking elements (10) are displaced from the locking position into the releasing position.
REFERENCES:
patent: 3447819 (1969-06-01), Borsum et al.
patent: 4471978 (1984-09-01), Kramer
patent: 5401063 (1995-03-01), Plosz
patent: 5685575 (1997-11-01), Allread et al.
patent: 5934709 (1999-08-01), Morrison
patent: 6129390 (2000-10-01), Ohlsson
patent: 6186557 (2001-02-01), Funk
patent: 6237964 (2001-05-01), .O slashed.stergaard
patent: 6561720 (2003-05-01), Wirth et al.
patent: 6578879 (2003-06-01), Muto
patent: 6604760 (2003-08-01), Cresswell et al.
patent: 27 27 397 (1977-12-01), None
patent: 32 02 367 (1982-10-01), None
patent: 199 32 307 (2001-01-01), None
patent: 1 486 149 (1967-06-01), None
patent: 54-31618 (1979-03-01), None
patent: 56-124789 (1981-09-01), None
patent: 3-52496 (1991-05-01), None
patent: 5-71588 (1993-09-01), None
patent: 2003-037024 (2003-09-01), None
patent: WO96/35906 (1996-11-01), None
patent: WO 96/35906 (1996-11-01), None
Altenrath Jörg
Macit Recep
Wolf Diethard
Harness & Dickey & Pierce P.L.C.
Hewitt James M.
Walterscheid Rohrverbindungstechnik GmbH
LandOfFree
Coupling for connecting hydraulic ducts does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Coupling for connecting hydraulic ducts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coupling for connecting hydraulic ducts will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3515418