Patent ID: 8939339
Filing Date: 2015-01-27
Classification: B25C

Abstract:
1. A fuel delivery system constructed and arranged for use with a combustion nailer including a cylinder head frame, and a combustion chamber, said fuel delivery system comprising: a fuel cell with an outer shell having a closed lower end and an open upper end; a closure crimped over said upper end and defining an opening for accommodating a reciprocating valve stem; a fuel cell adapter frictionally engaging said closure and including a flange having a diameter greater than a diameter of said fuel cell outer shell and being configured for suspending said fuel cell in said fuel cell chamber; a stem receiver block connectable to the cylinder head frame and including a stem engagement portion configured for directly and sealingly engaging an end of said valve stem, said stem engagement portion being in fluid communication with an internal receiver passage constructed and arranged for delivering fuel to the combustion chamber; and said fuel cell adapter includes a vertically projecting collar projecting normally from said flange and dimensioned for slidingly accommodating reciprocal movement of said stem engagement portion and configured for protecting said valve stem against breakage.