Pipe joints or couplings – Essential catch – Leaf spring
Reexamination Certificate
2008-04-16
2009-11-10
Hewitt, James M (Department: 3679)
Pipe joints or couplings
Essential catch
Leaf spring
C285S903000
Reexamination Certificate
active
07614664
ABSTRACT:
A fast-connecting joint for corrugated pipes includes a main body and an engaging member. The main body has a through hole for liquid to flow through, and an inner recessed annular wall provided with an annular slope close to one end of the main body. The engaging member possesses an outer annular wall, and plural flexible curved petals extending outward around one end of the outer annular wall and respectively having a projection on their outer surface. In assembly, the engaging member is inserted in the through hole of the main body, with the projections of the engaging member correspondingly fitted against the inner recessed annular wall. In use, a corrugated pipe can be quickly fastened with the fast-connecting joint tightly when it is inserted into the engaging member to keep its annular groove blocked by the curved petals.
REFERENCES:
patent: 1702878 (1929-02-01), Mersfelder et al.
patent: 3603621 (1971-09-01), Parsons
patent: 4261386 (1981-04-01), Young
patent: 4696497 (1987-09-01), Schwarzensteiner
patent: 4836580 (1989-06-01), Farrell
patent: 4848458 (1989-07-01), Holdsworth et al.
patent: 4905964 (1990-03-01), Shiozaki
patent: 4919462 (1990-04-01), Matsui et al.
patent: 4948176 (1990-08-01), Bartholomew
patent: 4989905 (1991-02-01), Rajecki
patent: 5048875 (1991-09-01), Usui et al.
patent: 5112086 (1992-05-01), Gruber et al.
patent: 5716081 (1998-02-01), Leigh-Monstevens et al.
patent: 6092274 (2000-07-01), Foti
patent: 6199913 (2001-03-01), Wang
patent: 6199918 (2001-03-01), Gerich
patent: 6199920 (2001-03-01), Neustadtl
patent: 6237969 (2001-05-01), Amatsutsu
patent: 6254145 (2001-07-01), Schwarz et al.
patent: 6260584 (2001-07-01), Foti
patent: 6267416 (2001-07-01), Ferreira et al.
patent: 6428052 (2002-08-01), Albino et al.
patent: 6447024 (2002-09-01), Olson
patent: 6502866 (2003-01-01), Hujisawa et al.
patent: 6733046 (2004-05-01), Rief
patent: 6908114 (2005-06-01), Moner
patent: 7055868 (2006-06-01), Watanabe
patent: 2001/0008342 (2001-07-01), Kikumori et al.
patent: 2002/0079702 (2002-06-01), Baumann et al.
patent: 2003/0127855 (2003-07-01), Heverly
patent: 2003/0146622 (2003-08-01), Youssefifar
patent: 2003/0155767 (2003-08-01), Hardie et al.
patent: 2004/0080160 (2004-04-01), Rief
patent: 2004/0155463 (2004-08-01), Moner
patent: 2004/0178633 (2004-09-01), Gehring et al.
patent: 2006/0006651 (2006-01-01), Watanabe
patent: 2007/0013189 (2007-01-01), Duquette et al.
patent: 2007/0246936 (2007-10-01), Jeltsch
patent: 2008/0084064 (2008-04-01), Kerin et al.
patent: 545410 (1993-06-01), None
patent: 545543 (2003-08-01), None
Hewitt James M
J.C. Patents
Yea Der Lih Enterprise Co., Ltd.
LandOfFree
Fast-connecting joint for corrugated pipes does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fast-connecting joint for corrugated pipes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fast-connecting joint for corrugated pipes will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4123445