US3339892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jack mechanism
Assignee: Duff Norton Co Inc
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Filing: 1966-06-03
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Granted: 1967-09-05
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Expires: 1986-06-03
Abstract
No abstract record available.
Inventors
- 👤 John J Dixon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:19
CPC Classifications
B; B66; B66F; B66F3/00; B66F3/08; B66F3/18; F; F16; F16H; F16H25/00; F16H25/18; F16H25/20; F16H25/24; F16H2025/2445; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18576; Y10T74/18712; Y10T74/1872; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19702
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A NON-BINDING JACK MECHANISM OF THE ROTATING SCREW TYPE CAPABLE OF MANIPULATING LOADS UNDER CONDITIONS REQUIRING ANGULAR DISPLACEMENT OF THE JACK SCREW, SAID JACK MECHANISM COMPRISING AN ANNULAR DRIVE MEMBER, MEANS SUPPORTING SAID DRIVE MEMBER FOR ROTATION, MEANS FOR ROTATING SAID DRIVE MEMBER, A JACK SCREW HAVING CONNECTING MEANS THEREON SEATED IN SAID ANNULAR DRIVE MEMBER FOR SUPPORT OF SAID JACK SCREW THEREBY, SAID CONNECTING MEANS INCLUDING SPHERICALLY DISPLACEMENT MEANS TO PERMIT ANGULAR DISPLACEMENT OF SAID JACK SCREW WITH RESPECT TO SAID DRIVE MEMBER, MEANS KEYING SAID CONNECTING MEANS TO SAID ANNULAR DRIVE MEMBER FOR DRIVING ROTATION OF SAID JACK SCREW
Claim 2
Dependent Claim
101 words
A NON-BINDING JACK MECHANISM OF THE ROTATING SCREW TYPE CAPABLE OF MANIPULATING LOADS UNDER CONDITIONS REQUIRING ANGULAR DISPLACEMENT OF THE JACK SCREW, SAID JACK MECHANISM COMPRISING AN ANNULAR DRIVE MEMBER, MEANS SUPPORTING SAID DRIVE MEMBER FOR ROTATION, MEANS FOR ROTATING SAID DRIVE MEMBER, A JACK SCREW HAVING CONNECTING MEANS THEREON SEATED IN SAID ANNULAR DRIVE MEMBER FOR SUPPORT OF SAID JACK SCREW THEREBY, SAID CONNECTING MEANS INCLUDING SPHERICALLY DISPLACEMENT MEANS TO PERMIT ANGULAR DISPLACEMENT OF SAID JACK SCREW WITH RESPECT TO SAID DRIVE MEMBER, MEANS KEYING SAID CONNECTING MEANS TO SAID ANNULAR DRIVE MEMBER FOR DRIVING ROTATION OF SAID JACK SCREW
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) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |