Flange

Details Flange Flange

2005-12-28

2008-12-23

Hewitt, James M (Department: 3679)

Pipe joints or couplings

Flange

Clamped

C285S405000

Reexamination Certificate

active

07467814

ABSTRACT:
A flange for connecting pipes. The flange includes a fixing flange and a connecting flange and a joint fastening member. Each of the fixing flange and the connecting flange has a bolt facing groove on a peripheral edge of each flange and a nut fixing groove formed adjacent to the bolt facing groove. The joint fastening member includes a screw bolt, a first fixing nut screwed to a first end of the screw bolt, and a second fixing nut screwed to a second end of the screw bolt. The first fixing nut has a joint protrusion that is inserted into the nut fixing groove of the fixing flange, and the second fixing nut has a joint protrusion that is inserted into the nut fixing groove of the connecting flange.

REFERENCES:
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patent: 7195289 (2007-03-01), Matt et al.
patent: 2003/0234541 (2003-12-01), Thompson
patent: 2006/0049635 (2006-03-01), Brazier et al.
patent: 6-12891 (1994-02-01), None

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