Pipe joints or couplings – Packed – Sleeve
Reexamination Certificate
2008-06-10
2008-06-10
Hewitt, James M. (Department: 3679)
Pipe joints or couplings
Packed
Sleeve
C285S104000, C285S329000, C285S379000
Reexamination Certificate
active
07384076
ABSTRACT:
An apparatus and method according to which the apparatus includes a pair of connected arcuate members for clamping around a pipe, with each arcuate member including at least one protrusion. The arcuate members have a first material hardness and at least a portion of the at least one protrusion has a second material hardness that is greater than the first material hardness so that the portion penetratingly engages the pipe when the arcuate members are clamped around the pipe.
REFERENCES:
patent: 2779610 (1957-01-01), Risley
patent: 3252192 (1966-05-01), Smith
patent: 3594023 (1971-07-01), Yano
patent: 4805932 (1989-02-01), Imhof et al.
patent: 5118139 (1992-06-01), Lott
patent: 5190324 (1993-03-01), Bird et al.
patent: 5197768 (1993-03-01), Conner
patent: 5209524 (1993-05-01), Corwon et al.
patent: 5464228 (1995-11-01), Weber et al.
patent: 5772253 (1998-06-01), Hodge et al.
patent: 5911446 (1999-06-01), McLennan et al.
patent: 6106029 (2000-08-01), DeMore et al.
patent: 6131957 (2000-10-01), Saito et al.
patent: 6302450 (2001-10-01), Dole et al.
patent: 6305719 (2001-10-01), Smith et al.
patent: 6364367 (2002-04-01), Hintzen
patent: 6517122 (2003-02-01), Minemyer
patent: 6565125 (2003-05-01), Robison, Jr.
patent: 6945570 (2005-09-01), Jones
patent: 7093863 (2006-08-01), Holmes et al.
patent: 2002/0033604 (2002-03-01), Minemyer
EBAA Iron, Inc.
Haynes and Boone LLP
Hewitt James M.
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