Elongated-member-driving apparatus – Explosive-type driving means – With plunger
Reexamination Certificate
2007-10-30
2007-10-30
Nash, Brian D. (Department: 3721)
Elongated-member-driving apparatus
Explosive-type driving means
With plunger
C227S009000, C173S210000, C173S211000
Reexamination Certificate
active
10900492
ABSTRACT:
Disclosed herein is a powder actuated setting tool piston retainer arrangement which includes a housing and firing mechanism and a piston having a piston retaining ring in operable communication with the housing and firing mechanism. Further the arrangement includes a barrel within which the piston is slidably disposable. A cantilevered retainer is disposed at the barrel, the retainer being pivotally articulated with the barrel such that the retaining ring is contactable thereby to retain the piston in a selected position.Further disclosed herein is a method for retaining a piston of a powder actuated setting tool in position. The method includes urging a cantilevered retainer radially inwardly of a barrel of the setting tool for the purpose of contacting a retaining ring of the piston of the setting tool. Such contact frictionally retains the piston in a selected position.
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Cantor & Colburn LLP
Nash Brian D.
Powers Products III, LLC
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