Patent US3262228A successfully refreshed from Google Patents.
US3262228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blast cleaning apparatus
Assignee: MERCANTILE MARINE ENGINEERING
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Filing: 1962-07-31
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Granted: 1966-07-26
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Expires: 1982-07-31
Abstract
No abstract record available.
Inventors
- 👤 Robert A M Schenck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:54
CPC Classifications
B; B63; B63B; B63B59/00; B63B59/06; B24; B24C; B24C3/00; B24C3/02; B24C3/06; B24C3/062; B24C3/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
AN APPARATUS FOR ABRADING SURFACES BY IMPACT THEREON OF A CONTINUOUS JET OF SMALL ABRASIVE BODIES TRAVELING AT HIGH VELOCITY, SAID APPARATUS COMPRISING A HOUSING HAVING A FIRST AIR OUTLET, ROTARY PROPULSION MEANS WITHIN SAID HOUSING FOR PROPELLING SAID ABRASIVE BODIES TO PRODUCE, IMPACT AND RECYCLE SAID JET OF ABRASIVE BODIES, SAID HOUSING HAVING A SECOND OUTLET FOR EXPELLING SAID BODIES THEREFROM AND A RETURN PASSAGE THROUGH WHICH SAID BODIES AFTER IMPACT AND REBOUND ON THE SURFACE TO BE TREATED, ARE FED BACK TO SAID ROTARY PROPULSION MEANS, MEANS COMPRISING A SUCTION PUMP, AN AIR FILTER AND A CONDUIT CONNECTING SAID FIRST AIR OUTLET WITH SAID AIR FILTER FOR ABSTRACTING AND PURIFYING AIR THROUGH SAID FIRST AIR OUTLET AND CONTROL MEANS
Claim 2
Independent Claim
121 words
AN APPARATUS FOR ABRADING SURFACES BY IMPACT THEREON OF A CONTINUOUS JET OF SMALL ABRASIVE BODIES TRAVELING AT HIGH VELOCITY, SAID APPARATUS COMPRISING A HOUSING HAVING A FIRST AIR OUTLET, ROTARY PROPULSION MEANS WITHIN SAID HOUSING FOR PROPELLING SAID ABRASIVE BODIES TO PRODUCE, IMPACT AND RECYCLE SAID JET OF ABRASIVE BODIES, SAID HOUSING HAVING A SECOND OUTLET FOR EXPELLING SAID BODIES THEREFROM AND A RETURN PASSAGE THROUGH WHICH SAID BODIES AFTER IMPACT AND REBOUND ON THE SURFACE TO BE TREATED, ARE FED BACK TO SAID ROTARY PROPULSION MEANS, MEANS COMPRISING A SUCTION PUMP, AN AIR FILTER AND A CONDUIT CONNECTING SAID FIRST AIR OUTLET WITH SAID AIR FILTER FOR ABSTRACTING AND PURIFYING AIR THROUGH SAID FIRST AIR OUTLET AND CONTROL MEANS
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |