US3157731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cable spacers for multi-conductor electrical overhead transmission lines
Assignee: Andre Rubber Co Ltd
•
Filing: 1962-12-04
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Granted: 1964-11-17
•
Expires: 1982-12-04
Abstract
No abstract record available.
Inventors
- 👤 Torr Ralph Percival
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:40
CPC Classifications
H; H02; H02G; H02G7/00; H02G7/12; H02G7/125; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32975; Y10T403/34; Y10T403/341; Y10T403/344; Y10T403/345; Y10T403/40; Y10T403/405; Y10T403/45; Y10T403/455
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A SPACING DEVICE FOR SPACING THE INDIVIDUAL CONDUCTORS OF AN OVERHEAD ELECTRICAL TRANSMISSION LINE, SAID DEVICE COMPRISING A CENTRAL RIGID HUB THAT IS GENERALLY SYMMETRICAL ABOUT A CENTRAL AXIS AND HAVING THEREIN A PLURALITY OF CAVITIES, EACH SAID CAVITY HAVING AN OPENING IN THE PERIPHERY OF SAID HUB, EACH SAID CAVITY HAVING A PLURALITY OF DIVERGING STRAIGHT SIDES AT LEAST IN THE CROSSSECTIONS PERPENDICULAR TO THE AXIS OF SYMMETRY OF SAID HUB; A CORRESPONDING PLURALITY OF RIGID ARMS EACH EXTENDING AT ONE OF ITS ENDS THROUGH ONE OF THE SAID HUB OPENINGS AND HAVING AT THAT ONE END A KNOB SIMILAR IN SHAPE TO BUT SMALLER IN OVERALL DIMENSIONS THAN THE CAVITY AND ITS OPENING IN WHICH IT IS HOUSED; AND ELASTOMERIC MATERIAL AT LEAST PARTIALLY EMBRACING EACH KNOB AND MAINTAINED UNDER COMPRESSION WITHIN EACH CAVITY.
Claim 2
Dependent Claim
136 words
A SPACING DEVICE FOR SPACING THE INDIVIDUAL CONDUCTORS OF AN OVERHEAD ELECTRICAL TRANSMISSION LINE, SAID DEVICE COMPRISING A CENTRAL RIGID HUB THAT IS GENERALLY SYMMETRICAL ABOUT A CENTRAL AXIS AND HAVING THEREIN A PLURALITY OF CAVITIES, EACH SAID CAVITY HAVING AN OPENING IN THE PERIPHERY OF SAID HUB, EACH SAID CAVITY HAVING A PLURALITY OF DIVERGING STRAIGHT SIDES AT LEAST IN THE CROSSSECTIONS PERPENDICULAR TO THE AXIS OF SYMMETRY OF SAID HUB; A CORRESPONDING PLURALITY OF RIGID ARMS EACH EXTENDING AT ONE OF ITS ENDS THROUGH ONE OF THE SAID HUB OPENINGS AND HAVING AT THAT ONE END A KNOB SIMILAR IN SHAPE TO BUT SMALLER IN OVERALL DIMENSIONS THAN THE CAVITY AND ITS OPENING IN WHICH IT IS HOUSED; AND ELASTOMERIC MATERIAL AT LEAST PARTIALLY EMBRACING EACH KNOB AND MAINTAINED UNDER COMPRESSION WITHIN EACH CAVITY.
References Cited (Backward Citations)
US281311A
Cited
GB410825A
Cited
US1943912A
Cited
US2176519A
Cited
US2195336A
Cited
AT171630B
Cited
GB788076A
Cited
US3030132A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |