Pipe joints or couplings – Socket – With separable fastener
Reexamination Certificate
2007-06-04
2008-08-26
Bochna, David E (Department: 3679)
Pipe joints or couplings
Socket
With separable fastener
C285S317000, C166S085300
Reexamination Certificate
active
07416226
ABSTRACT:
A system for connecting a stripper rubber to drilling head equipment comprises an adapter, a stripper rubber insert and a pin assembly. The adapter includes a primary bore, a groove extending around the primary bore, drill head equipment engaging structure adjacent the primary bore, and a pin assembly housing. The stripper rubber insert includes a vertically-upstanding flange configured for being engaged within the adapter groove. The flange includes a pin receptacle and the flange cooperatively mates with the adapter groove such that the pin receptacle is alignable with the pin assembly housing. The pin assembly is housed in the pin assembly housing of the adapter. The pin assembly includes a pin movably mounted for being selectively engagable with the pin receptacle for securing the stripper rubber insert to the adapter when the flange is engaged within the adapter groove with the pin receptacle suitably aligned with the pin.
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Bochna David E
Simmons David O.
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