초록 ▼

A two piece valve accessory for common caulking tubes or cartridges insertable in caulking guns is disclosed. The valve permits resealing of the cartridge nozzle, snout or applicator tip without hardening or significant wastage of the material therein and permits increased control of the flow rate o

A two piece valve accessory for common caulking tubes or cartridges insertable in caulking guns is disclosed. The valve permits resealing of the cartridge nozzle, snout or applicator tip without hardening or significant wastage of the material therein and permits increased control of the flow rate of material from the cartridge. The valve is adjustable from fully open to closed position and includes a separate sealed or dome extended position wherein the residue from the applicator tip of the valve is expelled. The valve barrel includes an integral piercing edge to break the cartridge seal as the valve is inserted into the applicator tip of the cartridge. The barrel is sized and ribbed for an interference non-rotatable fit within the applicator tip. The valve cap is fully rotatable on the barrel and includes a beveled tip to direct material in any radial direction relative to the caulking gun handle. In use the valve is opened and caused to remain open by pressure applied to the cartridge by the caulking gun plunger. The valve is closed or fully closed and sealed manually after release of the pressure on the material in the cartridge.

대표청구항 ▼

A two piece valve to control the flow of viscous materials comprising an elongated barrel including a central opening and piercing means at one end of the barrel; and a cap mounted on the barrel and spaced from the piercing means and movable relative to the barrel between a sealing position wherein

A two piece valve to control the flow of viscous materials comprising an elongated barrel including a central opening and piercing means at one end of the barrel; and a cap mounted on the barrel and spaced from the piercing means and movable relative to the barrel between a sealing position wherein fluid flow between said barrel and said cap is sealed close and on an open position wherein there is fluid communication between said barrel and said cap, said cap having a nozzle end with an opening therethrough, said barrel including a dome and a cylindrical skirt extending therefrom and a plurality of legs extending from said skirt to said barrel to define openings for fluid flow between said barrel and said cap, said dome extending substantially through said nozzle end of said cap to eject from said nozzle end substantially all material therein when said cap is in said sealing position.