Abstract: A liquid dispensing gun having a dispensing limiter and a fill limiter which are utilized to regulate the volume of liquid dispensed to an animal. The liquid dispensing gun also includes an interchangeable cone and a shaft having a t-handle, a piston, a locking mechanism, and a plurality of positioning notches adapted for engagement to the dispensing limiter and fill limiter. A cylinder having a quick release end cap is engaged to the cone and a spring is positioned within the cylinder and engaged to the piston and to the cone for providing a spring assisted dispensing gun which minimizes the stress and/or fatigue to the hand and/or arm of a user. The dispensing gun is preferably adapted for use as a drench gun providing a user with the ability to utilize one hand on the dispensing gun and the free hand to control an animal during the introduction of drench to an animal.

Abstract: A can vending apparatus with a hollow chute oriented at an angle with respect to the horizontal, an electrical control circuit, a first and a second mechanism, and an electrically operated horizontal sliding vending door. The two queuing mechanisms and the vending door are operated in sequence by the electrical control circuit. Products are permitted to slide down the hollow chute and are queued between the two queuing mechanisms. The products are permitted to enter the vending area, one at a time, on top of the sliding door under the control of the electrical circuit. At selected intervals of time the vending door is retracted by the electrical control circuit to dispense the product to be vended.