Patent US3073081A successfully refreshed from Google Patents.
US3073081A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Externally opening duct finishing machine
Assignee: Roto Finish Co Inc
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Filing: 1962-02-21
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Granted: 1963-01-15
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Expires: 1982-02-21
Abstract
No abstract record available.
Inventors
- 👤 Gunther W Balz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:05
CPC Classifications
B; B24; B24B; B24B31/00; B24B31/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A FINISHING MACHINE FOR FINISHING THE SURFACE OF AN UNFINISHED PART COMPRISING AN ABRADING CHAMBER PROVIDED WITH AN OPENING ADAPTED TO RECEIVE FINISHING MEDIA AND THE UNFINISHED PART, A STORAGE CHAMBER COMMUNICATING WITH SAID ABRADING CHAMBER WHEN IN A TRANSFER POSITION, SAID ABRADING CHAMBER AND SAID STORAGE CHAMBER BEING ROTATABLE AS A UNIT FROM AN ABRADING POSITION TO THE TRANSFER POSITION, TRANSFER MEANS COMMUNICATING WITH SAID STORAGE CHAMBER FOR DIRECTING FINISHING MEDIA OUT OF SAID MACHINE, AND VIBRATORY MEANS FOR IMPARTING ALTERNATING WAVES OF ENERGY TO SAID ABRADING CHAMBER WHEN IN THE ABRADING POSITION FOR MOVING FINISHING MEDIA THEREIN FOR FINISHING THE SURFACE OF THE UNFINISHED PART.
Claim 2
Dependent Claim
107 words
A FINISHING MACHINE FOR FINISHING THE SURFACE OF AN UNFINISHED PART COMPRISING AN ABRADING CHAMBER PROVIDED WITH AN OPENING ADAPTED TO RECEIVE FINISHING MEDIA AND THE UNFINISHED PART, A STORAGE CHAMBER COMMUNICATING WITH SAID ABRADING CHAMBER WHEN IN A TRANSFER POSITION, SAID ABRADING CHAMBER AND SAID STORAGE CHAMBER BEING ROTATABLE AS A UNIT FROM AN ABRADING POSITION TO THE TRANSFER POSITION, TRANSFER MEANS COMMUNICATING WITH SAID STORAGE CHAMBER FOR DIRECTING FINISHING MEDIA OUT OF SAID MACHINE, AND VIBRATORY MEANS FOR IMPARTING ALTERNATING WAVES OF ENERGY TO SAID ABRADING CHAMBER WHEN IN THE ABRADING POSITION FOR MOVING FINISHING MEDIA THEREIN FOR FINISHING THE SURFACE OF THE UNFINISHED PART.
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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) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |