Miniature vacuum stroke cleaning implement

Claim 1

A solder removing implement comprising: a molded body having a cylinder, air pump portion and forward and rearward ends, said rearward end being substantially open; a guide channel carried by said body and disposed along said cylindrical portion externally thereof, said body being formed to define a guide slot aligned with said guide channel and extending from said rearward end forwardly for a predetermined length along said cylinder portion; tip means carried by said body contiguously to its said forward end and forming a nozzle for air flow communication between the external environment and said cylinder portion; a molded piston assembly carried by said body and including integrally; a piston element disposed axially slidably within said cylinder portion of said body in air pump relation therewith, a cleaning rod element extending forwardly of said piston element for cleaning said nozzle when said piston assembly is displaced forwardly toward said forward end of said body, a circular guide boss element disposed axially slidably in said cylinder portion and spaced axially rearwardly from said piston element, a cocking handle portion for urging said piston assembly forwardly in said cylinder portion and extending radially from said guide boss element externally of said body and disposed axially slidably in said guide slot, a guide trigger tongue element extending forwardly from said cocking handle portion and disposed slidably, laterally and radially captively, within said guide channel means of said body, first trigger-latching means carried by said tongue element and disposed contiguously to the forward end thereof; second trigger-latching means carried by said body and disposed contiguously to the forward end of said guide channel thereof, said first and second trigger-latching means being of the character cooperatively to engage and latch said piston assembly forwardly in said cylinder portion of said body when urged to such disposition by operation of said cocking handle portion of said piston assembly, said first and second trigger-latching means being further of the character to be selectively disengaged to permit, when desired, rearward displacement of said piston assembly; energy storage means carried within said body and connected between said piston assembly and said body and against which work is done when said piston assembly is urged forwardly by said operation of said cocking handle portion and which causes a rapid, vacuum stroke flyback of said piston assembly when said trigger-latching means are disengaged; and piston assembly stop means carried by said body and disposed contiguously to the rear thereof for normally engaging said piston assembly and limiting its rearward displacement along said cylinder portion of said body and including stop means control element for selectively disengaging said piston assembly to permit, when desired, the removal rearwardly of said piston assembly from said body.