Patent US3277610A successfully refreshed from Google Patents.
US3277610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lapping and polishing apparatus
Assignee: Westinghouse Electric Corp
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Filing: 1963-07-12
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Granted: 1966-10-11
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Expires: 1983-07-12
Abstract
No abstract record available.
Inventors
- 👤 Robert G Mazur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:12
CPC Classifications
B; B24; B24B; B24B31/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
APPARATUS FOR ABRADING A WORKPIECE COMPRISING A HOUSING HAVING A BASE SUPPORT PORTION, A PLURALITY OF ECCENTRIC ARMS VERTICALLY DISPOSED IN AND PASSING THROUGH THE BASE SUPPORT PORTION IN A PREDETERMINED SPACED RELATIONSHIP, A PLURALITY OF COUNTERWEIGHTS ROTATABLY SECURED TO THE ECCENTRIC ARMS, A SUPPORT PLATE OPERABLY SECURED TO SAID ECCENTRIC ARMS TO PROVIDE ECCENTRIC MOVEMENT IN A SUBSTANTIALLY HORIZONTAL PLANE, A REMOVABLE LAPPING AND POLISHING TRAY HAVING AN ABRASIVE SURFACE DISPOSED ON THE SUPPORT PLATE, THE TRAY HAVING UPSTANDING SIDE WALLS PROVIDED WITH RESILIENT BAND MEANS EXTENDING OVER AND ACROSS SAID SURFACE WHICH WHEN ENGAGED BY SAID WORK IN MOTION, MECHANICALLY INTERACTS WITH SAID WORK TO PRODUCE AN ELASTIC IMPACT ON SAID WORK, AND MEANS WITHIN THE HOUSING FOR ROTATING AT LEAST ONE OF THE ECCENTRIC ARMS.
Claim 2
Dependent Claim
128 words
APPARATUS FOR ABRADING A WORKPIECE COMPRISING A HOUSING HAVING A BASE SUPPORT PORTION, A PLURALITY OF ECCENTRIC ARMS VERTICALLY DISPOSED IN AND PASSING THROUGH THE BASE SUPPORT PORTION IN A PREDETERMINED SPACED RELATIONSHIP, A PLURALITY OF COUNTERWEIGHTS ROTATABLY SECURED TO THE ECCENTRIC ARMS, A SUPPORT PLATE OPERABLY SECURED TO SAID ECCENTRIC ARMS TO PROVIDE ECCENTRIC MOVEMENT IN A SUBSTANTIALLY HORIZONTAL PLANE, A REMOVABLE LAPPING AND POLISHING TRAY HAVING AN ABRASIVE SURFACE DISPOSED ON THE SUPPORT PLATE, THE TRAY HAVING UPSTANDING SIDE WALLS PROVIDED WITH RESILIENT BAND MEANS EXTENDING OVER AND ACROSS SAID SURFACE WHICH WHEN ENGAGED BY SAID WORK IN MOTION, MECHANICALLY INTERACTS WITH SAID WORK TO PRODUCE AN ELASTIC IMPACT ON SAID WORK, AND MEANS WITHIN THE HOUSING FOR ROTATING AT LEAST ONE OF THE ECCENTRIC ARMS.
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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) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |