US3092740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary stepping motor
Assignee: Ledex Inc
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Filing: 1959-01-12
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Granted: 1963-06-04
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Expires: 1979-01-12
Abstract
No abstract record available.
Inventors
- 👤 Gerald H Leland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:29
CPC Classifications
G; G05; G05D; G05D3/00; G05D3/12; G05D3/121; H; H01; H01H; H01H51/00; H01H51/02; H01H51/04; H01H51/06; H01H51/08; H01H51/082; H01H67/00; H01H67/02; H01H67/04; H01H67/12; H02; H02K; H02K37/00; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/1856
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
IN A STEPPING DEVICE, FIRST AND SECOND RELATIVELY MOVABLE MEMBERS HAVING OPPOSING SURFACES, ROLLER MEANS INTERPOSED BETWEEN SAID SURFACES FOR ROLLING ENGAGEMENT THEREWITH, THE SURFACE OF SAID FIRST MEMBER ENGAGING SAID ROLLER MEANS AT VARYING ELEVATIONS REALTIVE TO THE SURFACE OF SAID SECOND MEMBER, THERE BEING A CONTINUOUS ELEVATION GRADIENT ON SAID SURFACE, YIELDING MEANS BIASING SAID ROLLER MEANS TO A PROXIMAL EXTREME OF SAID GRADIENT WITH RESPECT TO THE OPPOSING SURFACE, MOTIVE MEANS FOR ACTUATING SAID MEMBERS ONE RELATIVE TO THE OTHER TO COMPRESS SAID ROLLER MEANS BETWEEN SAID OPPOSING SURFACES THEREBY INDUCING SAID ROLLER MEANS TO ROLL TO A DISTAL EXTREME OF SAID GRADIENT RELATIVE TO THE OPPOSING SURFACE, SAID MOTIVE MEANS
Claim 2
Dependent Claim
114 words
IN A STEPPING DEVICE, FIRST AND SECOND RELATIVELY MOVABLE MEMBERS HAVING OPPOSING SURFACES, ROLLER MEANS INTERPOSED BETWEEN SAID SURFACES FOR ROLLING ENGAGEMENT THEREWITH, THE SURFACE OF SAID FIRST MEMBER ENGAGING SAID ROLLER MEANS AT VARYING ELEVATIONS REALTIVE TO THE SURFACE OF SAID SECOND MEMBER, THERE BEING A CONTINUOUS ELEVATION GRADIENT ON SAID SURFACE, YIELDING MEANS BIASING SAID ROLLER MEANS TO A PROXIMAL EXTREME OF SAID GRADIENT WITH RESPECT TO THE OPPOSING SURFACE, MOTIVE MEANS FOR ACTUATING SAID MEMBERS ONE RELATIVE TO THE OTHER TO COMPRESS SAID ROLLER MEANS BETWEEN SAID OPPOSING SURFACES THEREBY INDUCING SAID ROLLER MEANS TO ROLL TO A DISTAL EXTREME OF SAID GRADIENT RELATIVE TO THE OPPOSING SURFACE, SAID MOTIVE MEANS
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) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |