Pipe joints or couplings – Essential catch – With manipulator
Reexamination Certificate
2006-05-02
2006-05-02
Nicholson, Eric K. (Department: 3679)
Pipe joints or couplings
Essential catch
With manipulator
C285S320000, C285S308000
Reexamination Certificate
active
07036850
ABSTRACT:
A coupling to connect pipe, including lengths of pipe, valves, hoses, and pipe and hose fittings, includes a body to closely receive the end portion of the pipe to be coupled. A set of first class lever jaw members each having a power arm and a weight arm are mounted to the coupling body to establish a fulcrum for rotation of each lever jaw member about the fulcrum between an engaged position and a disengaged position with respect to the pipe end portion when received in the coupling body. The weight arms may include a gripping surface such as a rubber or plastic material or gripping teeth to grip a smooth end portion of a pipe, or the end portion of the pipe may include a shoulder, such as formed by a groove in the end portion, so the weight arms engage the shoulder to secure the pipe in the coupling. The coupling may have lever arms at each end to similarly attach to end sections of pipe to join them in end to end manner, or the coupling may be otherwise secured to one end of a pipe with the lever jaw members attaching the coupling to another pipe.
REFERENCES:
patent: 37721 (1863-02-01), Jucket
patent: 114575 (1871-05-01), Lovell
patent: 464386 (1891-12-01), Patterson
patent: 527764 (1894-10-01), Bichet et al.
patent: 558364 (1896-04-01), Doolittle
patent: 592899 (1897-11-01), Wilson
patent: 969019 (1910-08-01), Wilson et al.
patent: 1029819 (1912-06-01), Nylander
patent: 1996287 (1935-04-01), Fisher
patent: 2102774 (1937-12-01), Williams
patent: 2493577 (1950-01-01), Franklin
patent: 3104896 (1963-09-01), Kennedy, Jr.
patent: 3345087 (1967-10-01), Hanes et al.
patent: 3827728 (1974-08-01), Hynes
patent: 5149143 (1992-09-01), Howell
patent: 5387017 (1995-02-01), Gill
patent: 5586789 (1996-12-01), Bently
patent: 5707340 (1998-01-01), Hipp et al.
patent: 5752724 (1998-05-01), Bormioli
patent: 5794988 (1998-08-01), Gill
patent: 5868441 (1999-02-01), Gill
Mallinckrodt & Mallinckrodt
Nicholson Eric K.
LandOfFree
Pipe coupling does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pipe coupling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pipe coupling will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3596366