Patent US3270464A successfully refreshed from Google Patents.
US3270464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasive blasting apparatus
Assignee: Pangborn Corp
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Filing: 1964-04-28
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Granted: 1966-09-06
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Expires: 1984-04-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph E Bowling
- 👤 Robert A Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:27
CPC Classifications
B; B24; B24C; B24C3/00; B24C3/18; B24C3/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
ABRASIVE BLASTING APPARATUS FOR MACHINING WORK PIECES COMPRISING A HOUSING, NOZZLES IN SAID HOUSING, AIR SUPPLY MEANS CONNECTED TO SAID NOZZLES FOR CAUSING A FLOW OF AIR THERETHROUGH, A WORK TABLE IN SAID HOUSING DISPOSED UNDER SAID NOZZLES, AN ABRASIVE SUPPLY HOPPER UNDER SAID WORK TABLE FOR RECEIVING ABRASIVE MATERIAL, VIBRATING MEANS COOPERATING WITH SAID HOPPER FOR MAINTAINING SAID ABRASIVE MATERIAL SUBSTANTIALLY LEVEL AND IN A CONSTANT STATE OF AGITATION IN SAID HOPPER, AND ABRASIVE RETUREN MEANS CONNECTING SAID HOPPER TO SAID NOZZLES FOR EJECTING SAID ABRASIVE MATERIAL FROM SAID NOZZLES AND FOR RECIRCULATING SAID ABRASIVE BACK TO SAID NOZZLES AFTER IT FALLS INTO SAID HOPPER.
Claim 2
Dependent Claim
106 words
ABRASIVE BLASTING APPARATUS FOR MACHINING WORK PIECES COMPRISING A HOUSING, NOZZLES IN SAID HOUSING, AIR SUPPLY MEANS CONNECTED TO SAID NOZZLES FOR CAUSING A FLOW OF AIR THERETHROUGH, A WORK TABLE IN SAID HOUSING DISPOSED UNDER SAID NOZZLES, AN ABRASIVE SUPPLY HOPPER UNDER SAID WORK TABLE FOR RECEIVING ABRASIVE MATERIAL, VIBRATING MEANS COOPERATING WITH SAID HOPPER FOR MAINTAINING SAID ABRASIVE MATERIAL SUBSTANTIALLY LEVEL AND IN A CONSTANT STATE OF AGITATION IN SAID HOPPER, AND ABRASIVE RETUREN MEANS CONNECTING SAID HOPPER TO SAID NOZZLES FOR EJECTING SAID ABRASIVE MATERIAL FROM SAID NOZZLES AND FOR RECIRCULATING SAID ABRASIVE BACK TO SAID NOZZLES AFTER IT FALLS INTO SAID HOPPER.
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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |