Powder-actuated tool cartridge clip with position indicator mark

A powder-actuated tool cartridge clip disposable in a feed channel of a powder-actuated tool having an indexing mechanism for advancing the cartridge clip through the feed channel of the powder-actuated tool so as to sequentially position explosive charges retained within the cartridge clip at a discharge position, comprising:

• an elongate body member having a major dimension and a minor dimension, and having a leading end for insertion into the feed channel of the powder-actuated tool, and a trailing end;
• a plurality of explosive charge-retaining receptacles arranged in series along said major dimension of said elongate body member so as to be disposed between said leading and trailing ends of said elongate body member;
• indexing means disposed along said major dimension of said elongate body member for engagement by an indexing mechanism of a powder-actuated tool so as to facilitate advancement of said elongate body member, through the feed channel of the powder-actuated tool, from said leading end of said elongate body member to said trailing end of said elongate body member;
• and
• indicator means disposed at a predetermined position upon said elongate body member and within the vicinity of said trailing end of said elongate body for indicating to an operator, when a portion of said elongate body member of said cartridge clip, from which a plurality of explosive charges have already been fired and having said indicator means disposed thereon, protrudes externally from the feed channel of the powder-actuated tool while said trailing end of said elongate body member remains within the feed channel of the powder-actuated tool, that said trailing end of said elongate body member is being approached whereby said cartridge clip is being exhausted.