Patent US3371144A successfully refreshed from Google Patents.
US3371144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmission-line lightning-proofing structures
Assignee: Westinghouse Electric Corp
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Filing: —
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Granted: 1968-02-27
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Expires: 1985-02-27
Abstract
No abstract record available.
Inventors
- 👤 Samuel B Griscom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:55
CPC Classifications
H; H02; H02G; H02G13/00; H01; H01B; H01B17/00; H01B17/42; H01B17/44; H02G13/80; H02G7/00; H02G7/20
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
124 words
AN UPSTANDING METALLIC TRANSMISSION-TOWER STRUCTURE HAVING ONE OR MORE GROUNDED SUPPORT MEMBERS FOR SUPPORTING INSULATOR-STRING ASSEMBLAGES, ONE OR MORE INSULATOR-STRING ASSEMBLAGES, ONE OR MORE PHASE CONDUCTORS AND SECURED IN DEPENDING RELATION TO SAID ONE OR MORE GROUNDED SUPPORT MEMBERS, A PLURALITY OF RODLIKE METALLIC CANTILEVER MEMBERS IN UNITARY RELATION DISPOSED IN A GENERALLY HORIZONTAL PLANE PASSING IN CLOSE PROXIMITY THROUGH THE POINT OF ATTACHMENT OF SAID ONE OR MORE INSULATOR-STRING ASSEMBLAGES, WHEREBY TO INCREASE THE ELECTROSTATIC COUPLING BETWEEN SAID ONE OR MORE GROUNDED SUPPORT MEMBERS AND THE ONE OR MORE PHASE CONDUCTORS TO REDUCE THE POTENTIAL DIFFERENCE ACROSS THE INSULATORSTRING ASSEMBLAGES DURING LIGHTNING-STROKE PHENOMENA, AND CAUSE THE VOLTAGE ACROSS THE INSULATORS TO BE MORE UNIFORM, WHEREBY THE ENTIRE STRING WILL HAVE GREATER ELECTRICAL STRENGTH.
Claim 2
Dependent Claim
124 words
AN UPSTANDING METALLIC TRANSMISSION-TOWER STRUCTURE HAVING ONE OR MORE GROUNDED SUPPORT MEMBERS FOR SUPPORTING INSULATOR-STRING ASSEMBLAGES, ONE OR MORE INSULATOR-STRING ASSEMBLAGES, ONE OR MORE PHASE CONDUCTORS AND SECURED IN DEPENDING RELATION TO SAID ONE OR MORE GROUNDED SUPPORT MEMBERS, A PLURALITY OF RODLIKE METALLIC CANTILEVER MEMBERS IN UNITARY RELATION DISPOSED IN A GENERALLY HORIZONTAL PLANE PASSING IN CLOSE PROXIMITY THROUGH THE POINT OF ATTACHMENT OF SAID ONE OR MORE INSULATOR-STRING ASSEMBLAGES, WHEREBY TO INCREASE THE ELECTROSTATIC COUPLING BETWEEN SAID ONE OR MORE GROUNDED SUPPORT MEMBERS AND THE ONE OR MORE PHASE CONDUCTORS TO REDUCE THE POTENTIAL DIFFERENCE ACROSS THE INSULATORSTRING ASSEMBLAGES DURING LIGHTNING-STROKE PHENOMENA, AND CAUSE THE VOLTAGE ACROSS THE INSULATORS TO BE MORE UNIFORM, WHEREBY THE ENTIRE STRING WILL HAVE GREATER ELECTRICAL STRENGTH.
Claim 3
Dependent Claim
39 words
IN COMBINATION, A METALLIC TRANSMISSION-TOWER STRUCTURE FOR CARRYING PHASE CONDUCTORS AND A GROUND WIRE, A METALLIC WHIP-TYPE MAST EXTENDING UPWARDLY FROM THE TOWER STRUCTURE TO DRAIN ELECTROSTATIC CHARGE, AND THE MAST BEING FROM 20 TO 100 FEET IN LENGTH.
Claim 4
Dependent Claim
39 words
IN COMBINATION, A METALLIC TRANSMISSION-TOWER STRUCTURE FOR CARRYING PHASE CONDUCTORS AND A GROUND WIRE, A METALLIC WHIP-TYPE MAST EXTENDING UPWARDLY FROM THE TOWER STRUCTURE TO DRAIN ELECTROSTATIC CHARGE, AND THE MAST BEING FROM 20 TO 100 FEET IN LENGTH.
Claim 5
Dependent Claim
83 words
SUBSTATION LIGHTNING-PROOFING STRUCTURE INCLUDING MEANS (81) TERMINATING A PHASE CONDUCTOR (17), AN UPSTANDING GROUNDED METALLIC SUPPORTING STRUCTURE (82) DISPOSED IN THE NEAR VICINITY OF SAID PHASE CONDUCTOR (17) AND SUPPORTING A METALLIC GROUNDED CANTILEVER-ROD STRUCTURE (84), SAID METALLIC GROUNDED CANTILEVER-ROD CONSTRUCTION (84) COMPRISING AT LEAST TWO GENERALLY OPPOSITELYEXTENDING CANTILEVER RODS (85) ATTACHED TOGETHER (86) AND EXTENDING IN A PLANE GENERALLY PARALLEL TO SAID PHASE CONDUCTOR (17), WHEREBY THE ELECTROSTATIC COUPLING BETWEEN THE SUPPORTING STRUCTURE (82) AND THE PHASE CONDUCTOR (17) WILL BE INCREASED.
Claim 6
Dependent Claim
83 words
SUBSTATION LIGHTNING-PROOFING STRUCTURE INCLUDING MEANS (81) TERMINATING A PHASE CONDUCTOR (17), AN UPSTANDING GROUNDED METALLIC SUPPORTING STRUCTURE (82) DISPOSED IN THE NEAR VICINITY OF SAID PHASE CONDUCTOR (17) AND SUPPORTING A METALLIC GROUNDED CANTILEVER-ROD STRUCTURE (84), SAID METALLIC GROUNDED CANTILEVER-ROD CONSTRUCTION (84) COMPRISING AT LEAST TWO GENERALLY OPPOSITELYEXTENDING CANTILEVER RODS (85) ATTACHED TOGETHER (86) AND EXTENDING IN A PLANE GENERALLY PARALLEL TO SAID PHASE CONDUCTOR (17), WHEREBY THE ELECTROSTATIC COUPLING BETWEEN THE SUPPORTING STRUCTURE (82) AND THE PHASE CONDUCTOR (17) WILL BE INCREASED.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |