Patent US3148818A successfully refreshed from Google Patents.
US3148818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame spray gun construction
Assignee: Metco Inc
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Filing: 1962-07-03
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Granted: 1964-09-15
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Expires: 1982-07-03
Abstract
No abstract record available.
Inventors
- 👤 Charlop Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:18
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/16; B05B7/20; B05B7/201; B05B7/203
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
IN A FLAME SPRAY GUN HAVING A BLAST GAS CONDUIT AND A PAIR OF WIRE FEED ROLLERS FOR FEEDING WIRE BEING SPRAYED THROUGH THE GUN WITH ONE SAID ROLLERS BEING POSITIONED IN A HOUSING PIVOTALLY MOUNTED FOR PIVOTING SAID ROLLER TOWARD AND AWAY FROM THE OTHER, THE IMPROVEMENT WHICH COMPRISES A PNEUMATIC PISTON CYLINDER ARRANGEMENT HAVING A PLUNGER FOR ACTUATION CONTACT WITH SAID HOUSING TO PIVOT THE SAME IN THE DIRECTION MOVING THE ROLLER POSITIONED THEREIN TOWARD THE OTHER, A BRANCH GAS PASSAGE OPERATIONALLY CONNECTING SAID BLAST GAS CONDUIT AND SAID PISTON CYLINDER ARRANGEMENT, AND VALVE MEANS MOUNTED ON SAID GUN CONTROLLING THE FLOW OF GAS THROUGH SAID BRANCH GAS PASSAGE.
Claim 2
Dependent Claim
111 words
IN A FLAME SPRAY GUN HAVING A BLAST GAS CONDUIT AND A PAIR OF WIRE FEED ROLLERS FOR FEEDING WIRE BEING SPRAYED THROUGH THE GUN WITH ONE SAID ROLLERS BEING POSITIONED IN A HOUSING PIVOTALLY MOUNTED FOR PIVOTING SAID ROLLER TOWARD AND AWAY FROM THE OTHER, THE IMPROVEMENT WHICH COMPRISES A PNEUMATIC PISTON CYLINDER ARRANGEMENT HAVING A PLUNGER FOR ACTUATION CONTACT WITH SAID HOUSING TO PIVOT THE SAME IN THE DIRECTION MOVING THE ROLLER POSITIONED THEREIN TOWARD THE OTHER, A BRANCH GAS PASSAGE OPERATIONALLY CONNECTING SAID BLAST GAS CONDUIT AND SAID PISTON CYLINDER ARRANGEMENT, AND VALVE MEANS MOUNTED ON SAID GUN CONTROLLING THE FLOW OF GAS THROUGH SAID BRANCH GAS PASSAGE.
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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |