US3077949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switch operating device
Assignee: K P F ELECTRIC CO
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Filing: 1961-02-20
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Granted: 1963-02-19
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Expires: 1981-02-20
Abstract
No abstract record available.
Inventors
- 👤 John G Pahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:23
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
A DEVICE, FOR OPERATING A POLE-TOP SWITCH HAVING A ROD DEPENDING IN VERTICALLY RECIPROCABLE RELATION ALONGSIDE THE POLE, COMPRISING A SUPPORT SECURED TO AND PROJECTING LATERALLY FROM THE POLE ADJACENT THE LOWER END OF THE ROD, A HORIZONTAL SHAFT JOURNALED ON THE SUPPORT, A CRANK FIXED ON THE SHAFT, MEANS CONNECTING THE CRANK TO THE ROD, AN INNER DRUM FIXED ON THE SHAFT, AN OUTER DRUM JOURNALED ON THE INNER DRUM, RELEASABLE MEANS LOCKING THE DRUMS TOGETHER, A CABLE ANCHORED TO, WOUND ABOUT, AND THENCE DEPENDING FROM THE OUTER DRUM, AN ELEMENT ENGAGING AND PULLING DOWN ON THE DEPENDING PORTION OF THE CABLE WHEREBY TO TEND TO CAUSE ROTATION OF THE LOCKED-TOGETHER DRUMS AND THE SHAFT, A LATCH UNIT BETWEEN THE SUPPORT AND INNER DRUM NORMALLY PREVENTING SUCH ROTATION BUT BEING RELEASABLE TO PERMIT OF SUCCESSIVE HALF-TURNS, SUCH LATCH UNIT BEING RE-ENGAGED UPON COMPLETION OF EACH HALFTURN, AND MEANS BETWEEN THE SUPPORT AND OUTER DRUM ADAPTED TO ROTATE THE LATTER IN A CABLE WINDING DIRECTION UPON RELEASE OF SAID LOCKING MEANS.
Claim 2
Independent Claim
171 words
A DEVICE, FOR OPERATING A POLE-TOP SWITCH HAVING A ROD DEPENDING IN VERTICALLY RECIPROCABLE RELATION ALONGSIDE THE POLE, COMPRISING A SUPPORT SECURED TO AND PROJECTING LATERALLY FROM THE POLE ADJACENT THE LOWER END OF THE ROD, A HORIZONTAL SHAFT JOURNALED ON THE SUPPORT, A CRANK FIXED ON THE SHAFT, MEANS CONNECTING THE CRANK TO THE ROD, AN INNER DRUM FIXED ON THE SHAFT, AN OUTER DRUM JOURNALED ON THE INNER DRUM, RELEASABLE MEANS LOCKING THE DRUMS TOGETHER, A CABLE ANCHORED TO, WOUND ABOUT, AND THENCE DEPENDING FROM THE OUTER DRUM, AN ELEMENT ENGAGING AND PULLING DOWN ON THE DEPENDING PORTION OF THE CABLE WHEREBY TO TEND TO CAUSE ROTATION OF THE LOCKED-TOGETHER DRUMS AND THE SHAFT, A LATCH UNIT BETWEEN THE SUPPORT AND INNER DRUM NORMALLY PREVENTING SUCH ROTATION BUT BEING RELEASABLE TO PERMIT OF SUCCESSIVE HALF-TURNS, SUCH LATCH UNIT BEING RE-ENGAGED UPON COMPLETION OF EACH HALFTURN, AND MEANS BETWEEN THE SUPPORT AND OUTER DRUM ADAPTED TO ROTATE THE LATTER IN A CABLE WINDING DIRECTION UPON RELEASE OF SAID LOCKING MEANS.
References Cited (Backward Citations)
US1293811A
Cited
US2822445A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |