초록 ▼

A fastener stem collection device for attaching to a power operated fastening device for collecting fastener stems, having a reciprocating tube urged forward by air pressure against the fastening device, which tube has an air jet for introduction of pressurized air to its central bore to draw the fa

A fastener stem collection device for attaching to a power operated fastening device for collecting fastener stems, having a reciprocating tube urged forward by air pressure against the fastening device, which tube has an air jet for introduction of pressurized air to its central bore to draw the fastener stem from the fastening device through the central bore and deliver it to a collection housing. The collection housing has a non-opaque inner tube with an open rear end, and an outer canister with a closed rear end and an open window located medially thereon. The outer canister is selectively affixable in a concentric relation with the inner tube to collect the stems during operation of the fastening device, but may be released and slid rearward of the inner tube to allow the collected stems to be discharged through the inner tube open end and out the outer canister window. During operation, the amount of stems in the inner tube may be determined visually by viewing through the outer canister window and the non-opaque inner tube.

대표청구항 ▼

A stem collection apparatus for a power operated fastening device having means for separating stems from fasteners, comprising: a housing selectively attachable to the fastening device; an ejection tube slidably disposed within said housing having a central bore therethrough leading rearward from th

A stem collection apparatus for a power operated fastening device having means for separating stems from fasteners, comprising: a housing selectively attachable to the fastening device; an ejection tube slidably disposed within said housing having a central bore therethrough leading rearward from the fastening device through which the stems can pass; means for urging said ejection tube forward against the fastening device so that the ejection tube central bore forms therewith a continuous, unobstructed passage through which stems may pass; means for introducing pressurized fluid into the central bore so that the pressurized fluid flows away from the fastening device thereby urging the stem from the fastening device rearward through the central bore; an inner collector tube for collecting the stems fixed to said housing rearward of said fastening device forming a first cavity therein in communication with said central bore, said inner collector tube having a tubular side wall throughout its length which is constructed to prevent the passage of said stems, through said side wall, and said collector tube having a stem outlet aperture at its rear end distal said fastening device; and an outer canister disposed about said inner collector tube having a window in the side thereof between the forward and rear end, a closed rear end distal the fastening device, said canister including holding structure which is selectively engageable in a forward position of said canister wherein said closed end covers said aperture to capture said stems and to prevent relative linear movement with respect to the inner collector tube or disengageable to allow moving the outer canister rearwardly away from said inner collector tube so that the rearwardly displaced outer canister forms a second cavity therein rearward of the first cavity and connected thereto by the inner collector tube rear aperture, thereby allowing discharge of stems from the cavity within the inner collector tube, through the second cavity and through the outer canister window.