Quick release automatic electric caulking gun

An apparatus for dispensing caulking material from a caulking cartridge with a tubular body, a nozzle and an end piece, utilizing an electrical power supply comprising of:

• a. a caulking cartridge receptacle having a grooved channel for receiving said caulking cartridge;
• b. a handle on which said caulking cartridge receptacle is mounted;
• c. a plunger unit slidably mounted within said grooved channel for applying pressure axially to said end piece of said caulking cartridge, said plunger unit having a drive gear and an electrical motor with a worm gear, said worm gear is engaged with said drive gear and transfers power from said electrical motor to said drive gear causing said drive gear to rotate and advance said plunger unit;
• d. an electrical switch having a positive "on" and a positive "off" position for electrically connecting and disconnecting said electrical power supply to and from said electrical motor;
• e. a trigger rack having a trigger and wedges, said trigger slidably mounted within said grooved channel underneath said plunger unit, said trigger having a forward, a rearward and an intermediate position, said trigger vertically extends beyond said grooved channel to said handle, said trigger exposed forward of said handle enabling the operator to slide said trigger back and forth between said forward, rearward and intermediate positions, said trigger cooperates with said electrical switch to position said electrical switch positive "on" when said trigger is in said rearward position and to position said electrical switch positive "off" when said trigger is in not in said rearward position, said wedges having horizontal planes at its peaks and sloping between said horizontal planes and adjacent wedges;
• f. a gear rack having gears that meshes with said drive gear and reciprocating wedges that meshes with said wedges on said trigger rack, said gear rack positioned within said grooved channel atop of said trigger rack and underneath of said plunger unit, said reciprocating wedges cooperates with said wedges on said trigger rack to push said gear rack upward as said trigger moves away from said forward position and towards said rearward position, said gear rack is spaced a distance apart from said drive gear of said plunger unit sufficient to disengage said gears from said drive gear when said trigger is in said forward position and to engage said gears with said drive gear when said trigger is in said intermediate position or rearward position.