Patent US3089707A successfully refreshed from Google Patents.
US3089707A
Expired / Lapsed
US
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Feed chucks
Assignee: Hardinge Inc
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Filing: 1961-07-03
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Granted: 1963-05-14
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Expires: 1981-07-03
Abstract
No abstract record available.
Inventors
- 👤 Daniel R Laux
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:55
CPC Classifications
B; B23; B23B; B23B13/00; B23B13/12; B23B13/123; B23B13/125; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17119
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A FEED CHUCK INCLUDING A TUBULAR BODY MEMBER HAVING TWO SETS OF SPRINGS, SAID SETS BEING SPACED ONE IN ADVANCE OF THE OTHER IN SAID BODY MEMBER, EACH OF SAID SPRINGS HAVING AN INTERMEDIATE PORTION EXTENDING INWARDLY FROM SAID BODY PORTION IN POSITION TO YEILDINGLY ENGAGE THE STOCK TO BE OPERATED UPON, THE SPRINGS OF EACH SET BEING ARRANGED CIRCUMFERENTIALLY AT SUBSTANTIALLY EQUAL INTERVALS FROM EACH OTHER AND THE SPRINGS OF THE TWO SETS BEING ARRANGED IN STAGGERED RELATION TO EACH OTHER.
Claim 2
Dependent Claim
82 words
A FEED CHUCK INCLUDING A TUBULAR BODY MEMBER HAVING TWO SETS OF SPRINGS, SAID SETS BEING SPACED ONE IN ADVANCE OF THE OTHER IN SAID BODY MEMBER, EACH OF SAID SPRINGS HAVING AN INTERMEDIATE PORTION EXTENDING INWARDLY FROM SAID BODY PORTION IN POSITION TO YEILDINGLY ENGAGE THE STOCK TO BE OPERATED UPON, THE SPRINGS OF EACH SET BEING ARRANGED CIRCUMFERENTIALLY AT SUBSTANTIALLY EQUAL INTERVALS FROM EACH OTHER AND THE SPRINGS OF THE TWO SETS BEING ARRANGED IN STAGGERED RELATION TO EACH OTHER.
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) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |