US3145973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Line stringing block
Assignee: THEODORE D BROSS LINE CONSTRUC
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Filing: 1962-08-27
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Granted: 1964-08-25
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Expires: 1982-08-27
Abstract
No abstract record available.
Inventors
- 👤 Macfarlane John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:10
CPC Classifications
H; H02; H02G; H02G1/00; H02G1/02; H02G1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A LINE STRINGING BLOCK OF THE TYPE USED IN A TRANSMISSION LINE STRINGING OPERATION, WHEREIN TRANSMISSION LINES ARE ATTACHED TO A RUNNING BOARD WHICH IS DRAWN THROUGH THE STRINGING BLOCK BY A PULLING CABLE, THE SAID STRINGING BLOCK COMPRISING A FRAME, A DRUM MOUNTED IN SAID FRAME FOR ROTATION ABOUT A HORIZONTAL AXIS AND HAVING AN ANNULAR GROOVE THEREIN TO RECEIVE SAID LINE PULLING CABLE, A SUPPORTING MEMBER ON SAID FRAME, GUIDE MEMBERS MOUNTED ON SAID SUPPORTING MEMBER ALIGNED WITH SAID GROOVE AND NORMALLY DISPOSED IN GUIDING POSITION THEREON IN SPACED RELATION TO RECEIVE SAID PULLING CABLE THEREBETWEEN AND GUIDE IT OVER SAID DRUM TO RETAIN IT IN SAID GROOVE AS IT PASSES THROUGH SAID BLOCK, LATCH MEANS ENGAGEABLE WITH
Claim 2
Dependent Claim
120 words
A LINE STRINGING BLOCK OF THE TYPE USED IN A TRANSMISSION LINE STRINGING OPERATION, WHEREIN TRANSMISSION LINES ARE ATTACHED TO A RUNNING BOARD WHICH IS DRAWN THROUGH THE STRINGING BLOCK BY A PULLING CABLE, THE SAID STRINGING BLOCK COMPRISING A FRAME, A DRUM MOUNTED IN SAID FRAME FOR ROTATION ABOUT A HORIZONTAL AXIS AND HAVING AN ANNULAR GROOVE THEREIN TO RECEIVE SAID LINE PULLING CABLE, A SUPPORTING MEMBER ON SAID FRAME, GUIDE MEMBERS MOUNTED ON SAID SUPPORTING MEMBER ALIGNED WITH SAID GROOVE AND NORMALLY DISPOSED IN GUIDING POSITION THEREON IN SPACED RELATION TO RECEIVE SAID PULLING CABLE THEREBETWEEN AND GUIDE IT OVER SAID DRUM TO RETAIN IT IN SAID GROOVE AS IT PASSES THROUGH SAID BLOCK, LATCH MEANS ENGAGEABLE WITH
References Cited (Backward Citations)
US2879031A
Cited
US3077337A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |