Caulking gun with cutter and piercer

In a caulking gun including a caulking tube-receiving barrel having a reciprocating plunger, and a pistol grip-type handle secured to one end of the barrel, a pivot means carried near the top portion of the handle, and a trigger member pivotally mounted on the pivot and adapted for operating the said plunger;

• the invention comprising:
• a. the said handle being of hollow construction, and the said trigger being of hollow construction, where the trigger tends to telescope into the hollow handle when the trigger is squeezed;
• b. a hole formed in one side wall of the handle near the said pivot means;
• c. one side wall of the trigger that is the nearest to the said side wall of the handle with the hole in it having a notched edge that is adjacent the said hole;
• d. and a razor blade fixed within the said trigger adjacent the said notched edge whereby the combination of the hole in the handle and the razor blade in the trigger serves as a cutting means for the tip of the nozzle of a caulking tube when the trigger is squeezed;
• e. and a retractable pick positioned within the handle and having a free end adjacent the lower end of the handle, whereby the pick may be inserted into the open tip of the nozzle of a caulking tube, and the pick may be extended from its retracted position so as to pierce the seal of the tube that is adjacent the base of the nozzle.

In a caulking gun including a caulking tube-receiving barrel having a reciprocating plunger, and a pistol grip-type handle secured to one end of the barrel, a pivot means carried near the top portion of the handle, and a trigger member pivotally mounted on the pivot and adapted for operating the said plunger;

• the invention comprising:
• a. the said handle being of hollow construction, as well as the said trigger member being of hollow construction and tending to telescope into the hollow handle when the trigger is squeezed;
• b. a hole formed in one side wall of the handle near the said pivot means;
• c. and a keen-edged blade positioned within the said trigger and extendable into the said handle when the trigger is depressed, said hole in the handle in cooperation with the blade in the trigger serving in conjunction as a cutting means for the tip of a nozzle of a caulking tube when the trigger is squeezed;
• d. an adjustable adapter mounted to the outside of the sidewall of the handle that has the said hole formed therein, said adapter having at least two angular openings of different sizes that are each capable of being aligned over the said hole in the handle, where each angular opening is capable of receiving the tip of the nozzle of a caulking tube for slicing off the tip of the nozzle at a non-transverse angle, while the larger angular opening allows a larger section of the tip of the nozzle to be removed.

In a caulking gun including a caulking tube-receiving barrel having a reciprocating plunger, and a pistol grip-type handle secured to one end of the barrel, a pivot means carried near the top portion of the handle, and a trigger member pivotally mounted on the pivot and adapted for operating the said plunger;

• the invention comprising:
• a. the said handle being of hollow construction, as well as the said trigger member being of hollow construction and tending to telescope into the hollow handle when the trigger is squeezed;
• b. a hole formed in one side wall of the handle near the said pivot means;
• c. and a keen-edged blade positioned within the said trigger and extendable into the said handle when the trigger is depressed, said hole in the handle in cooperation with the blade in the trigger serving in conjunction as a cutting means for the tip of a nozzle of a caulking tube when the trigger is squeezed;
• d. the said hollow handle being fitted with an elongated extendable pick that has a free end positioned adjacent the lower end of the handle, whereby the pick may be inserted into the open tip of the nozzle of a caulking tube, and the tip may be extended out beyond the bottom of the handle so as to pierce the seal of the tube that is located adjacent the base of the nozzle.

In a caulking gun including a caulking tube-receiving barrel having a reciprocating plunger, and a pistol grip-type handle secured to one end of the barrel, a pivot means carried near the top portion of the handle, and a trigger member pivotally mounted on the pivot and adapted for operating the said plunger;

• the invention comprising:
• a. the said handle being of hollow construction, as well as the said trigger member being of hollow construction and tending to telescope into the hollow handle when the trigger is squeezed;
• b. a hole formed in one side wall of the handle near the said pivot means;
• c. and a keen-edged blade positioned within the said trigger and extendable into the said handle when the trigger is depressed, said hole in the handle in cooperation with the blade in the trigger serving in conjunction as a cutting means for the tip of a nozzle of a caulking tube when the trigger is squeezed;
• d. and an adjustable adapter pivotally mounted on the inside of the wall of the handle having the said hole therein, said adapter including a pluraltiy of different size nozzle-receiving holes which may each be aligned with the said hole in the handle for governing the particular length of the tip of the nozzle of the caulking tube that may be severed when the trigger is squeezed, and a curved shroud partially covers the hole in the handle so that the nozzle of the tube can only enter the hole in the handle at an angle that is not perpendicular to the wall of the handle that has the hole therein.