US3071226A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic clutch
Assignee: Shinko Electric Co Ltd
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Filing: 1959-11-03
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Granted: 1963-01-01
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Expires: 1979-11-03
Abstract
No abstract record available.
Inventors
- 👤 Fujita Kazuya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:30
CPC Classifications
F; F16; F16D; F16D27/00; F16D27/02; F16D27/04; F16D27/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
188 words
AN ELECTROMAGNETIC CLUTCH COMPRISING A REVOLUBLE DRIVING MEMBER; A REVOLUBLE DRIVEN MEMBER COAXIAL WITH SAID DRIVING MEMBER; A CLUTCH PLATE AXIALLY SLIDABLY CONNECTED TO ONE OF SAID MEMBERS FOR ROTATION THEREWITH, SAID CLUTCH PLATE HAVING TWO OPPOSITELY DIRECTED FLAT ANNULAR FRICTION FACINGS COAXIAL WITH SAID MEMBERS; MEANS DEFINING A FIRST FLAT ANNULAR FRICTION SURFACE CONFRONTING ONE OF SAID FACINGS; ELECTROMAGNETIC MEANS CONNECTED TO THE OTHER OF SAID MEMBERS FOR ROTATION THEREWITH, SAID ELECTROMAGNETIC MEANS CONSISTING OF AN ENERGIZING WINDING AND AN AXIALLY MOVABLE ARMATURE MEMBER WHICH IS SELECTIVELY DISPLACEABLE AXIALLY OF SAID MEMBERS UPON ENERGIZATION OF DEENERGIZATION OF SAID WINDING; MEANS DEFINING A SECOND FLAT ANNULAR FRICTION SURFACE CONFRONTING THE OTHER ONE OF SAID FACINGS; RESILIENT MEANS AXIALLY YIELDINGLY CONNECTING SAID MEANS DEFINING SAID FIRST FRICTION SURFACE TO SAID OTHER MEMBER FOR COAXIAL ROTATION TOGETHER; FURTHER RESILIENT MEANS AXIALLY YIELDINGLY CONNECTING SAID MEANS DEFINING SAID SECOND FRICTION SURFACE TO SAID ELECTROMAGNETIC MEANS FOR COAXIAL ROTATION TOGETHER; AND SPRING MEANS YIELDINGLY URGING SAID FRICTION SURFACES INTO SPACED RELATIONSHIP WITH RESPECT TO SAID FRICTION FACINGS, SAID FRICTION FACINGS BEING YIELDINGLY PRESSED BETWEEN SAID FRICTION SURFACES WHEN SAID WINDING IS ENERGIZED.
Claim 2
Dependent Claim
188 words
AN ELECTROMAGNETIC CLUTCH COMPRISING A REVOLUBLE DRIVING MEMBER; A REVOLUBLE DRIVEN MEMBER COAXIAL WITH SAID DRIVING MEMBER; A CLUTCH PLATE AXIALLY SLIDABLY CONNECTED TO ONE OF SAID MEMBERS FOR ROTATION THEREWITH, SAID CLUTCH PLATE HAVING TWO OPPOSITELY DIRECTED FLAT ANNULAR FRICTION FACINGS COAXIAL WITH SAID MEMBERS; MEANS DEFINING A FIRST FLAT ANNULAR FRICTION SURFACE CONFRONTING ONE OF SAID FACINGS; ELECTROMAGNETIC MEANS CONNECTED TO THE OTHER OF SAID MEMBERS FOR ROTATION THEREWITH, SAID ELECTROMAGNETIC MEANS CONSISTING OF AN ENERGIZING WINDING AND AN AXIALLY MOVABLE ARMATURE MEMBER WHICH IS SELECTIVELY DISPLACEABLE AXIALLY OF SAID MEMBERS UPON ENERGIZATION OF DEENERGIZATION OF SAID WINDING; MEANS DEFINING A SECOND FLAT ANNULAR FRICTION SURFACE CONFRONTING THE OTHER ONE OF SAID FACINGS; RESILIENT MEANS AXIALLY YIELDINGLY CONNECTING SAID MEANS DEFINING SAID FIRST FRICTION SURFACE TO SAID OTHER MEMBER FOR COAXIAL ROTATION TOGETHER; FURTHER RESILIENT MEANS AXIALLY YIELDINGLY CONNECTING SAID MEANS DEFINING SAID SECOND FRICTION SURFACE TO SAID ELECTROMAGNETIC MEANS FOR COAXIAL ROTATION TOGETHER; AND SPRING MEANS YIELDINGLY URGING SAID FRICTION SURFACES INTO SPACED RELATIONSHIP WITH RESPECT TO SAID FRICTION FACINGS, SAID FRICTION FACINGS BEING YIELDINGLY PRESSED BETWEEN SAID FRICTION SURFACES WHEN SAID WINDING IS ENERGIZED.
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) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |