| 主权项 |
1. A dispensing gun for dispensing material from a tube of material, the dispensing gun comprising:
a. a cartridge frame for holding the tube of caulk, the cartridge frame having a proximal end and a distal end; b. an extension having proximal and distal ends, the distal end of the extension being releasably coupled to the proximal end of the cartridge frame; c. a telescoping shaft contained in the extension, the telescoping shaft having opposite distal and proximal ends, the proximal end of the telescoping shaft being rotatably mounted to the proximal end of the extension, the distal end of the telescoping shaft being rotatably mounted to the distal end of the extension, a spindle formed on the proximal end of the telescoping shaft projecting from the proximal end of the extension; d. a distal portion of the telescoping shaft adjacent the distal end of said shaft being threaded, the distal portion of the telescoping shaft threaded through a threaded joint at the distal end of the extension such that rotation of the telescoping shaft causes the telescoping shaft to increase and decrease in length causing the distal portion of the telescoping shaft to move between a retracted position adjacent the proximal end of the cartridge frame and an extended position adjacent the distal end of the cartridge frame, e. a plunger releasably mounted to the distal end of the telescoping shaft. |
