Abstract: A punch plasterer is disclosed which in one action, drives and countersinks a fastener into wood or other materials and which fills the resulting cavity above the fastener thereafter. The present invention includes a punch tool for driving the fastener and first and second resilient springs for reciprocating the punch and for dispensing a predetermined amount of plaster. A plurality of plaster sizes may be used according to the size of the fasteners utilized.

Abstract: An improved compressed air nail machine is disclosed incorporating a plastering device for automatically filling the hole above each nail head after it is placed into the wood. The plastering device adapts to a conventional nail gun and comprises a piston and cylinder pair which utilizes the exhaust air originating from the nail gun. The reciprocating motion of the piston and cylinder causes a quantity of wax feed into an orifice located in the side wall of the cylinder to be expelled through an orifice in the bottom of cylinder and into the nail hole. The recuperation of the piston in the cylinder is due to the fact that in the lateral surface of said cylinder exists an orifice through which air is expelled once this orifice is surpassed by the piston, so that by means of an internal spring, the initial position of the piston is achieved.