Pipe joints or couplings – With assembly means or feature – Molded joint facilitator
Reexamination Certificate
2000-09-14
2009-11-10
Hewitt, James M (Department: 3679)
Pipe joints or couplings
With assembly means or feature
Molded joint facilitator
C285S021200, C285S294100, C219S535000
Reexamination Certificate
active
07614661
ABSTRACT:
An electrofusion coupling (93) for joining together two or more sections of pipe, said coupling comprising: (i) a substantially cylindrical coupling body having an outer surface and an inner surface, the inner surface being sized and shaped to form a clearance fit with the outer surface of the pipe regions to be joined; (ii) at least one electrical heating (94) element set on or in the inner surface of the coupling body; (iii) terminal means adapted to connect the electrical heating means to an electrical supply; characterized in that the terminal means does not project beyond the outer cylindrical surface of the coupling body once the welding process is complete.
REFERENCES:
patent: 3062940 (1962-11-01), Bauer
patent: 3482080 (1969-12-01), Kassen
patent: 3610663 (1971-10-01), Lago
patent: 3751076 (1973-08-01), Thais et al.
patent: 3943334 (1976-03-01), Sturm
patent: 4224505 (1980-09-01), Sturm
patent: 4226444 (1980-10-01), Bunyan
patent: 4313053 (1982-01-01), Sturm
patent: 4486650 (1984-12-01), Bridgstock et al.
patent: 4530521 (1985-07-01), Nyffeler
patent: 4852914 (1989-08-01), Lyall
patent: 4855574 (1989-08-01), Lodder et al.
patent: 5277456 (1994-01-01), Mer et al.
patent: 5364130 (1994-11-01), Thalmann
patent: 5398974 (1995-03-01), Mizukawa et al.
patent: 5529656 (1996-06-01), Ewen et al.
patent: 5581872 (1996-12-01), Miyadai et al.
patent: 5618065 (1997-04-01), Akiyama
patent: 5687996 (1997-11-01), Steinmetz et al.
patent: 6131954 (2000-10-01), Campbell
patent: 6135508 (2000-10-01), Genoni et al.
patent: 6198081 (2001-03-01), Steinmetz et al.
patent: 6394502 (2002-05-01), Andersson
patent: 6428054 (2002-08-01), Zappa et al.
patent: 2003/0218006 (2003-11-01), Sutorius
patent: 553369 (1974-08-01), None
patent: 3808734 (1989-10-01), None
patent: 0103075 (1984-03-01), None
patent: 0838878 (1998-04-01), None
patent: 1440713 (1974-03-01), None
patent: 2036225 (1979-04-01), None
patent: 2318543 (1998-04-01), None
patent: 4277397 (1992-02-01), None
patent: 5280684 (1993-10-01), None
patent: 6137841 (1994-05-01), None
patent: 1070812 (1991-07-01), None
patent: WO 98 48207 (1998-10-01), None
U.K. Search Report dated Feb. 26, 2001.
International Search Report—PCT/GB00/03526.
European Search Report EPO 838818A1.
Petry Dirk
Ruffle Stephen Colin
Schwarz Bernd
Galgano & Associates PLLC
Georg Fischer Wavin AG
Hewitt James M
Petro Technik Limited
LandOfFree
Welding socket does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Welding socket, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Welding socket will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4143259