US3357205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaft for electrical switch and method of making
Assignee: Westinghouse Electric Corp
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Filing: 1965-10-11
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Granted: 1967-12-12
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Expires: 1985-10-11
Abstract
No abstract record available.
Inventors
- 👤 Calvin J Holtkamp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:29
CPC Classifications
G; G05; G05G; G05G1/00; G05G1/08; G05G1/10; F; F16; F16C; F16C3/00; H; H01; H01H; H01H3/00; H01H3/02; H01H3/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A CONTROL SHAFT COMPRISING: FIRST, SECOND AND THIRD LENGTHWISE EXTENDING PORTIONS; SAID FIRST AND THIRD PORTIONS BEING OF NON-CIRCULAR TRANSVERSE CROSS SECTION, IN PART AT LEAST, TO MATE WITH A CORRESPONDINGLY CROSS-SECTIONALLY SHAPED MEMBER, SAID CROSS-SECTION OF SAID FIRST AND THIRD PORTIONS INCLUDING ONE SURFACE AREA SYMMETRICAL TO THE LONGITUDINAL AXIS OF THE PORTION, AND A REMAINING SURFACE AREA WHICH IS SUBSTANTIALLY FLAT WHEREBY THE LONGITUDINALLY EXTENDING CENTER LINE OF MASS OF SAID FIRST AND THIRD PORTIONS IS OFFSET FROM THE RESPECTIVE LONGITUDINAL AXIS; SAID SECOND PORTION INCLUDING A LENGTH THEREOF TORSIONALLY STRAINED BEYOND ITS ELASTIC LIMITS TO EFFECT ANGULAR DISPLACEMENT OF SAID FIRST AND THIRD PORTIONS TO POSITIONS IN WHICH THEIR SAID FLAT SURFACE AREAS ARE OUT OF REGISTERING ALIGNMENT, AND IN WHICH THEIR SAID LONGITUDINAL AXES ARE ALIGNED.
Claim 2
Dependent Claim
130 words
A CONTROL SHAFT COMPRISING: FIRST, SECOND AND THIRD LENGTHWISE EXTENDING PORTIONS; SAID FIRST AND THIRD PORTIONS BEING OF NON-CIRCULAR TRANSVERSE CROSS SECTION, IN PART AT LEAST, TO MATE WITH A CORRESPONDINGLY CROSS-SECTIONALLY SHAPED MEMBER, SAID CROSS-SECTION OF SAID FIRST AND THIRD PORTIONS INCLUDING ONE SURFACE AREA SYMMETRICAL TO THE LONGITUDINAL AXIS OF THE PORTION, AND A REMAINING SURFACE AREA WHICH IS SUBSTANTIALLY FLAT WHEREBY THE LONGITUDINALLY EXTENDING CENTER LINE OF MASS OF SAID FIRST AND THIRD PORTIONS IS OFFSET FROM THE RESPECTIVE LONGITUDINAL AXIS; SAID SECOND PORTION INCLUDING A LENGTH THEREOF TORSIONALLY STRAINED BEYOND ITS ELASTIC LIMITS TO EFFECT ANGULAR DISPLACEMENT OF SAID FIRST AND THIRD PORTIONS TO POSITIONS IN WHICH THEIR SAID FLAT SURFACE AREAS ARE OUT OF REGISTERING ALIGNMENT, AND IN WHICH THEIR SAID LONGITUDINAL AXES ARE ALIGNED.
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) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |