Patent US3190559A successfully refreshed from Google Patents.
US3190559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame spray construction
Assignee: Metco Inc
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Filing: 1962-10-30
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Granted: 1965-06-22
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Expires: 1982-10-30
Abstract
No abstract record available.
Inventors
- 👤 Charlop Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:02
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/16; B05B7/20; B05B7/201; B05B7/203; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87917; Y10T137/87925; Y10T137/87981
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
IN A FLAME SPRAY GUN HAVING A CONDUIT FOR SUPPLYING COMBUSTION GAS TO A BURNERHEAD AND VALVE MEANS FOR CONTROLLING THE GAS FLOW THROUGH SAID CONDUIT, THE IMPROVEMENT WHICH COMPRISES SAID VALVE MEANS COMPRISING A HOLLOW CYLINDRICAL VALVE HOUSING HAVING AN INLET AT ONE END AND AN OUTLET AT ITS OPPOSITE END, A HOLLOW PISTON DEFINING A GAS FLOW PASSAGE THERETHROUGH SLIDABLY MOUNTED IN SAID VALVE HOUSING, ONE END OF SAID PISTON BEING DIMENSIONED FOR GAS-TIGHT SEALING ENGAGEMENT WITH ONE END PORTION OF THE INTERIOR OF SAID HOUSING THE OTHER END OF SAID PISTON BEING DIMENSIONED TO DEFINE A RESTRICTED GAS FLOW PASSAGE WITH THE OTHER END PORTION OF THE INTERIOR OF SAID HOUSING, AND MEANS FOR AXIALLY SLIDING SAID PISTON IN SAID HOUSING.
Claim 2
Dependent Claim
124 words
IN A FLAME SPRAY GUN HAVING A CONDUIT FOR SUPPLYING COMBUSTION GAS TO A BURNERHEAD AND VALVE MEANS FOR CONTROLLING THE GAS FLOW THROUGH SAID CONDUIT, THE IMPROVEMENT WHICH COMPRISES SAID VALVE MEANS COMPRISING A HOLLOW CYLINDRICAL VALVE HOUSING HAVING AN INLET AT ONE END AND AN OUTLET AT ITS OPPOSITE END, A HOLLOW PISTON DEFINING A GAS FLOW PASSAGE THERETHROUGH SLIDABLY MOUNTED IN SAID VALVE HOUSING, ONE END OF SAID PISTON BEING DIMENSIONED FOR GAS-TIGHT SEALING ENGAGEMENT WITH ONE END PORTION OF THE INTERIOR OF SAID HOUSING THE OTHER END OF SAID PISTON BEING DIMENSIONED TO DEFINE A RESTRICTED GAS FLOW PASSAGE WITH THE OTHER END PORTION OF THE INTERIOR OF SAID HOUSING, AND MEANS FOR AXIALLY SLIDING SAID PISTON IN SAID HOUSING.
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) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |