US3758039A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spray gun
Assignee: Individual
•
Filing: 1972-10-12
•
Granted: 1973-09-11
•
Expires: 1992-10-12
Abstract
Abstract A spray gun for applying hair-setting fluids and the like and in which pressurized air and fluid are separately fed through flexible conduits for mixing in a mixing chamber prior to discharge through a nozzle, and including cut-off mechanism operative first to shut off the flexible fluid conduit and then shut off the pressurized air conduit to ensure that all fluid is blown out of the nozzle at the discontinuance of spraying, the shut-off mechanism comprising an anvil member and a relatively movable abutment member adapted to sequentially squeeze to shutoff condition the flexible fluid conduit and the pressurized air conduit, the conduits being superposed in series between the anvil member and the abutment member with the pressurized air conduit adjacent the anvil.
Inventors
- 👤 W Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:04
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/02; B05B7/12; B05B7/1209
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
140 words
A spray gun for the spray-dispensing of fluids comprising, in combination, a hand gun having a hand grip portion and a nozzle member, a first tubular conduit for supplying pressurized air to said nozzle member and leading through said hand grip portion, a second tubular conduit for supplying pressurized fluid to be sprayed through said nozzle member and leading through said hand grip portion, an actuating member movably supported with respect to said hand grip portion and movable between a first position and a second position, said actuating member being operative, when moved to said second position, to sequentially clamp into shut-off condition against a relatively fixed anvil portion said pressurized liquid conduit and said pressurized air conduit, said conduits being mutually superposed between said actuating member and said anvil portion with said pressurized air conduit adjacent said anvil portion.
Claim 2
Dependent Claim
140 words
A spray gun for the spray-dispensing of fluids comprising, in combination, a hand gun having a hand grip portion and a nozzle member, a first tubular conduit for supplying pressurized air to said nozzle member and leading through said hand grip portion, a second tubular conduit for supplying pressurized fluid to be sprayed through said nozzle member and leading through said hand grip portion, an actuating member movably supported with respect to said hand grip portion and movable between a first position and a second position, said actuating member being operative, when moved to said second position, to sequentially clamp into shut-off condition against a relatively fixed anvil portion said pressurized liquid conduit and said pressurized air conduit, said conduits being mutually superposed between said actuating member and said anvil portion with said pressurized air conduit adjacent said anvil portion.
Claim 3
Dependent Claim
47 words
A spray gun as defined in claim 1 wherein said movably supported member comprises a trigger member pivotally journalled intermediate its ends with respect to said hand grip portion, said trigger member having an abutment portion adapted to move into clamping engagement with respect to said conduits.
Claim 4
Dependent Claim
21 words
A spray gun as defined as in claim 2 including resilient means normally urging said trigger member in said one direction.
Claim 5
Dependent Claim
32 words
A spray gun as defined in claim 3 including a thin, flexible pressure plate disposed between said first and second tubular conduits in alignment with said abutment portion and said anvil portion.
Claim 6
Dependent Claim
54 words
A spray gun as defined in claim 3 wherein said hand grip portion comprises a body member having a handle portion and a nozzle barrel portion, said nozzle member being secured at one end of said barrel portion, a handle cover member, and means removably securing said handle cover member to said handle portion.
Claim 7
Dependent Claim
53 words
A spray gun as defined in claim 5 including a pair of recesses formed in said handle portion for the passage of said conduits, an inner end of one of said recesses communicating with the other recess to provide for mutual superpositioning of said conduits between said abutment member and said anvil portion.
Claim 8
Dependent Claim
24 words
A spray gun as defined in claim 6 including means for adjustably collapsing said tubular conduit for controlling the feed of pressurized fluiD therethrough.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |