GB424777A - Improvements in spray guns - Google Patents

Improvements in spray guns

Info

Publication number
GB424777A
GB424777A GB23787/33A GB2378733A GB424777A GB 424777 A GB424777 A GB 424777A GB 23787/33 A GB23787/33 A GB 23787/33A GB 2378733 A GB2378733 A GB 2378733A GB 424777 A GB424777 A GB 424777A
Authority
GB
United Kingdom
Prior art keywords
valve
spring
stem
pressure
trigger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB23787/33A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DeVilbiss Co
Original Assignee
DeVilbiss Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DeVilbiss Co filed Critical DeVilbiss Co
Publication of GB424777A publication Critical patent/GB424777A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/12—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
    • B05B7/1254—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated
    • B05B7/1263—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated pneumatically actuated
    • B05B7/1272—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated pneumatically actuated actuated by gas involved in spraying, i.e. exiting the nozzle, e.g. as a spraying or jet shaping gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
    • B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
    • B05B1/306—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice the actuating means being a fluid

Abstract

424,777. Spray - producers ; valves. DE VILBISS CO., Toledo, Ohio, U.S.A. Aug. 26, 1933, No. 23787. Convention date, Sept. 6, 1932. [Classes 69 (iii) and 135] The closing pressure on the handoperated materialcontrol valve of a spray-gun is partially counteracted by pneumatic means when the valve is open. In the form shown the nozzle member B has a shank which is caused by a tubular screw 6 to seat firmly within a bore in a boss 2 depending from the body part A of the gun. The stem 8 of the material control valve 7 terminates in an enlarged portion 12, which is engaged by a dog 11 pivoted to the trigger 9. A detachable unit C for providing the closing pressure for the valve 7 comprises a cylinder 19 containing a piston 24 with a hollow stem 22, which is pressed against the valve stem 8 by a spring 31. A second stem 35 extending through the hollow stem 22 and piston 24 is pressed against the valve stem 8 by a second spring 37, which is considerably weaker than the spring 31. When the trigger 9 is operated the valve 45 is first opened and compressed air from the conduit 40 is admitted through apertures 20 into the cylinder 19, where its pressure on the piston 24 counteracts the pressure of the spring 31, and from thence it passes via hollow screw 6 to the air nozzle. Immediately thereafter the trigger 9 withdraws the valve 7 against the closing pressure of the spring 37 only. In a modification the closing pressure is provided by one spring and the air pressure is used to relieve only a portion of the tension of the spring.
GB23787/33A 1932-09-06 1933-08-26 Improvements in spray guns Expired GB424777A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US424777XA 1932-09-06 1932-09-06

Publications (1)

Publication Number Publication Date
GB424777A true GB424777A (en) 1935-02-26

Family

ID=21922142

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23787/33A Expired GB424777A (en) 1932-09-06 1933-08-26 Improvements in spray guns

Country Status (1)

Country Link
GB (1) GB424777A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0572236A2 (en) * 1992-05-27 1993-12-01 Ransburg Corporation Ergonomic hand held paint spray gun
USRE35769E (en) * 1992-05-27 1998-04-14 Ransburg Corporation Spray gun having trigger overtravel protection and maximum flow adjustment knob warning
GB2324748A (en) * 1997-05-02 1998-11-04 Itw Ltd A surface coating repair gun and assembly kit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0572236A2 (en) * 1992-05-27 1993-12-01 Ransburg Corporation Ergonomic hand held paint spray gun
EP0572236A3 (en) * 1992-05-27 1994-03-23 Ransburg Corp
USRE35769E (en) * 1992-05-27 1998-04-14 Ransburg Corporation Spray gun having trigger overtravel protection and maximum flow adjustment knob warning
GB2324748A (en) * 1997-05-02 1998-11-04 Itw Ltd A surface coating repair gun and assembly kit
GB2324748B (en) * 1997-05-02 2001-05-23 Itw Ltd A surface coating repair gun and assembly kit

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