Spray gun assembly
Patent 4174071 Issued on November 13, 1979. Estimated Expiration Date: 
November 13, 1996. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 13, 1996. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesInventorsAssigneeApplicationNo. 05/740121 filed on 11/08/1976US Classes:239/348, Fluid pressure in carrier supply line is vented239/365Branched flow from main stream to holderExaminersPrimary: Saifer, Robert W.Attorney, Agent or FirmInternational ClassesB05B 15/00 (20060101)B05B 7/24 (20060101) AbstractAn improved paint spray gun assembly of the syphon type having a vented paint supply container, is characterized by a conduit connectable either between the container vent and a compressed air inlet to the gun, or between the vent and a fitting remote therefrom and open to atmosphere. With either connection, the conduit prevents dripping of paint from the vent upon manipulation of the gun by an operator, and with the connection of the vent with the compressed air a positive pressure is generated within the container to increase the paint flow rate from the gun.Field of SearchHolder coupled to gas supply sourceParallel pressure flows to holder and pressure reducer Branched flow from main stream to holder Air and liquid flow paths combine upstream of spray outlet Unitary mounting for pressure fluid inlet and liquid outlet Air and liquid flow paths combine upstream of spray outlet Flow control by venting pressure fluid to atmosphere Fluid pressure in carrier supply line is vented | |
