Pipe joints or couplings – With assembly means or feature – Molded joint facilitator
Reexamination Certificate
2002-10-04
2009-02-17
Hewitt, James M (Department: 3679)
Pipe joints or couplings
With assembly means or feature
Molded joint facilitator
C285S021100, C285S123100, C285S285100, C285S361000, C285S402000, C219S535000, C219S544000, C156S273900, C156S274200
Reexamination Certificate
active
07490861
ABSTRACT:
An electrofusion coupling for joining together two or more sections of pipe or for joining a section of pipe and a pipework fitting, said coupling comprising: (i) a first part (14) having a first internal diameter at a first end adapted to form a tight sliding fit with a first pipe section and a second internal diameter at a second end, larger than the first; (ii) a second part (14) having a first internal diameter at a first end adapted to form a tight sliding fit with a second pipe section and an outside diameter at a second end adapted to form a tight sliding fit with the second internal diameter of the first part such that the two parts can nest together tightly with an overlapping region; (iii) electrical heating elements (16, 17, 18) and electrical terminal connections being provided in the two parts such that the first part can be used independently of the second part to join a section of pipe to a pipework fitting or the first and second parts can be used in combination to join two adjacent sections of pipe.
REFERENCES:
patent: 4626308 (1986-12-01), Ansell
patent: 4708370 (1987-11-01), Todd
patent: 5529656 (1996-06-01), Ewen et al.
patent: 5685572 (1997-11-01), Linton et al.
patent: 6237640 (2001-05-01), Vanderlee
patent: 6394502 (2002-05-01), Andersson
patent: 2 298014 (1996-08-01), None
patent: 2 318 543 (1998-04-01), None
patent: 2 324 132 (1998-10-01), None
patent: 2 349 927 (2000-11-01), None
patent: 2 355 775 (2001-05-01), None
patent: 5240394 (1993-09-01), None
patent: 7198086 (1995-08-01), None
patent: 8042774 (1996-02-01), None
patent: 8145268 (1996-06-01), None
patent: WO 99/46532 (1999-09-01), None
patent: WO 9946532 (1999-09-01), None
patent: WO 01/20219 (2001-03-01), None
Boudry John Alexandre
Wise Christopher Richard
Hewitt James M
Petro Technik, Ltd.
Ripley Jay R
Stetina Brunda Garred & Brucker
LandOfFree
Couplings does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Couplings, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Couplings will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4124808