Pipe ring apparatus

Details Pipe ring apparatus Pipe ring apparatus

2008-04-29

2010-02-16

Hewitt, James M (Department: 3679)

Pipe joints or couplings

Packed

Sleeve

C285S104000, C285S329000, C285S379000

Reexamination Certificate

active

07661731

ABSTRACT:
An apparatus 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:
International Searching Authority, “International Preliminary Report on Patentability,” issued Jun. 5, 2007, in connection with International Application No. PCT/U52005/038223.
International Searching Authority, “International Search Report,” mailed May 10, 2007, in connection with International Application No. PCT/US2005/038223.
International Searching Authority, “Written Opinion,” mailed May 10, 2007, in connection with International Application No. PCT/US2005/038223.
James M. Hewitt, “Office Action,” mailed Oct. 5, 2006, in connection with U.S. Appl. No. 10/971,407, U.S. Patent and Trademark Office.
James M. Hewitt, “Office Action” mailed Jan. 18, 2007 in connection with U.S. Appl. No. 10/971,407, U.S. Patent and Trademark Office.
James M. Hewitt, “Office Action” mailed Oct. 4, 2007 in connection with U.S. Appl. No. 10/971,407, U.S. Patent and Trademark Office.
James M. Hewitt, “Notice of Allowance” mailed Jan. 30, 2008 in connection with U.S. Appl. No. 10/971,407, U.S. Patent and Trademark Office.
James M. Hewitt, “Interview Summary” mailed Mar. 17, 2008 in connection with U.S. Appl. No. 10/971,407.

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