Patent US3649740A successfully refreshed from Google Patents.
US3649740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pole-top structure for electric distribution lines
Assignee: Individual
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Filing: 1967-11-09
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Granted: 1972-03-14
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Expires: 1987-11-09
Abstract
Abstract A compact inverted-delta polyphase electric distribution line carried on poles is disclosed in which the conductors are attached to pole-top structures for supporting the middle conductor above the pole top but at a substantially lower level than the two outside conductors. In a preferred form, the poletop bracket consists of a pair of telescoping angle members adapted to be adjusted to pole tops of varying diameter. Secured to the upper surface of the outer of the telescoping angle members is a horizontal spacing member having at its ends sockets oriented upwardly and outwardly which receive insulating extension arms which extend divergently upward and have at their outer ends insulator pins for supporting insulators for carrying the outer two wires of the three-wire distribution line. At the center of the spacing member atop the pole, a vertically disposed pin is provided having thereon an insulator for carrying the third or middle wire of the three-wire system at a substantially lower level than the two outside wires. An alternate bracket embodiment is also disclosed for carrying the middle wire of the three-wire system above the pole top but at a substantially lower level than the two outside wires.
Inventors
- 👤 John R Boyer
- 👤 Charles C Scarlett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:29
CPC Classifications
H; H02; H02G; H02G7/00; H02G7/20; E; E04; E04H; E04H12/00; E04H12/24
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
140 words
A pole-top bracket assembly for carrying the three wires of a three-wire electrical distribution system above the top of the pole, said bracket assembly comprising: a. bracket means adapted to be secured to the pole top, b. first and second insulating extension arms supported in said bracket means in upwardly divergent positions, c. pin insulators carried at the outer ends of said extension arms for carrying the outer wires of the three-wire distribution system, and d. a pin insulator supported on the top of said bracket means between and at a substantially lower level than the pin insulators on said extension arms for carrying the middle wire of said three-wire distribution system, e. said bracket means including a pair of L-shaped channel members the transverse legs of which interfit in telescoping fashion for accommodating said bracket means for varyingdiameter poles.
Claim 2
Dependent Claim
140 words
A pole-top bracket assembly for carrying the three wires of a three-wire electrical distribution system above the top of the pole, said bracket assembly comprising: a. bracket means adapted to be secured to the pole top, b. first and second insulating extension arms supported in said bracket means in upwardly divergent positions, c. pin insulators carried at the outer ends of said extension arms for carrying the outer wires of the three-wire distribution system, and d. a pin insulator supported on the top of said bracket means between and at a substantially lower level than the pin insulators on said extension arms for carrying the middle wire of said three-wire distribution system, e. said bracket means including a pair of L-shaped channel members the transverse legs of which interfit in telescoping fashion for accommodating said bracket means for varyingdiameter poles.
Claim 3
Dependent Claim
50 words
Apparatus according to claim 1 characterized in that said bracket means also includes a transverse spacing member secured to the outer of said L-shaped interfitted transverse legs, and further characterized in that said spacing member is provided at its outer ends with divergent sockets for receiving said insulating extension arms.
Claim 4
Dependent Claim
34 words
Apparatus according to claim 2 further characterized in that said transverse spacing member includes a center socket, and a pin in said center socket for receiving the pin insulator which supports the middle wire.
Claim 5
Dependent Claim
201 words
A compact aerial polyphase electric distribution line comprising three conductors in inverted-delta configuration with one of said conductors intermediate of and at a lower elevation than the others, supported on respective conductor-carrying assemblies mounted on longitudinally distributed poles, each said assembly comprising: a. bracket means secured to the pole top, including 1.a first bracket element disposed on one side of said pole top, 2.a second bracket element disposed on the opposite side of said pole top, and 3.bolt means cooperatively associated with said first and second bracket elements and extending through said pole top for securing said bracket elements to said pole top, b. conductor-carrying insulator means mounted on said first bracket element for supporting the intermediate conductor vertically above the pole top, c. conductor-carrying insulator means mounted on said second bracket element for supporting the two upper conductors above and in laterally spaced relation to and on either side of said intermediate conductor, comprising two insulating arms extending upward and divergently outward from said second bracket element, said arms having axes which are coplanar and intersect in the region of said pole top and each of said arms terminating in an insulator to which the respective upper conductor is secured.
Claim 6
Dependent Claim
201 words
A compact aerial polyphase electric distribution line comprising three conductors in inverted-delta configuration with one of said conductors intermediate of and at a lower elevation than the others, supported on respective conductor-carrying assemblies mounted on longitudinally distributed poles, each said assembly comprising: a. bracket means secured to the pole top, including 1.a first bracket element disposed on one side of said pole top, 2.a second bracket element disposed on the opposite side of said pole top, and 3.bolt means cooperatively associated with said first and second bracket elements and extending through said pole top for securing said bracket elements to said pole top, b. conductor-carrying insulator means mounted on said first bracket element for supporting the intermediate conductor vertically above the pole top, c. conductor-carrying insulator means mounted on said second bracket element for supporting the two upper conductors above and in laterally spaced relation to and on either side of said intermediate conductor, comprising two insulating arms extending upward and divergently outward from said second bracket element, said arms having axes which are coplanar and intersect in the region of said pole top and each of said arms terminating in an insulator to which the respective upper conductor is secured.
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) | 1975-03-14 | 1975-09-13 | 1976-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-14 | 1979-09-13 | 1980-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-14 | 1983-09-13 | 1984-03-14 | $7700.00 | Window Closed / Lapsed |