US3630474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Breakaway pole support structure
Assignee: Kearney National Inc
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Filing: 1970-08-18
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Granted: 1971-12-28
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Expires: 1990-08-18
Abstract
Abstract A breakaway support system for a light pole in which a pole base is connected by four elongated breakaway connector members each formed with a tapered conical flange base threaded onto bolts of a foundation with an elongated body portion extending from the base for connection to the base member of a pole with the body portion being divided by an annular circumferential recess providing a weakening along which a break occurs in the event the pole is subjected to a predetermined force.
Inventors
- 👤 Ray C Minor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:20
CPC Classifications
F; F21; F21V; F21V21/00; F21V21/10; E; E01; E01F; E01F9/00; E01F9/60; E01F9/623; E01F9/631; E01F9/635
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
167 words
A breakaway pole support system for enabling a pole to break away from a supporting foundation means when subjected to a predetermined impact, said system comprising a pole base connected to one end of said pole, a plurality of breakaway connector members extending between said pole base and said foundation for connecting said pole base to said foundation, said connector members each comprising a unitary elongated member extending between a lower end abuttingly engaging said foundation and an upper end abuttingly engaging the lower surface of said pole base, a conical support flange extending radially from the lower end of said unitary elongated member for abutting engagement with said foundation, a bore extending inwardly from each end of said unitary elongated member and provided with threads for receiving anchor bolts extending from said foundation means on the lower end of said elongated member and for receiving one of a plurality of retaining bolts extending from said pole base on the upper end of said unitary elongated member.
Claim 2
Dependent Claim
167 words
A breakaway pole support system for enabling a pole to break away from a supporting foundation means when subjected to a predetermined impact, said system comprising a pole base connected to one end of said pole, a plurality of breakaway connector members extending between said pole base and said foundation for connecting said pole base to said foundation, said connector members each comprising a unitary elongated member extending between a lower end abuttingly engaging said foundation and an upper end abuttingly engaging the lower surface of said pole base, a conical support flange extending radially from the lower end of said unitary elongated member for abutting engagement with said foundation, a bore extending inwardly from each end of said unitary elongated member and provided with threads for receiving anchor bolts extending from said foundation means on the lower end of said elongated member and for receiving one of a plurality of retaining bolts extending from said pole base on the upper end of said unitary elongated member.
Claim 3
Dependent Claim
27 words
The invention of claim 1 wherein said elongated member includes a body portion divided into major and minor sections by a radially inwardly extending arcuate peripheral groove.
Claim 4
Dependent Claim
14 words
The invention of claim 2 wherein said body member is of hexagonal cross-sectional shape.
Claim 5
Dependent Claim
25 words
The invention of claim 3 wherein said conical flange includes a surface having a 45-degree inclination with respect to the axis of said elongated member.
Claim 6
Dependent Claim
39 words
The invention of claim 4 wherein said bore comprises a main section bore extending inwardly from the lower end of said elongated member and a minor section bore extending inwardly from the upper end of said unitary elongated member.
Claim 7
Dependent Claim
31 words
The invention of claim 5 wherein said circumferential groove is positioned approximately one-third of the length of the unitary elongated member inwardly from the upper end of said unitary elongated member.
Claim 8
Dependent Claim
19 words
The invention of claim 6 wherein said base flange terminates at its lowermost end position in a cylindrical portion.
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) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |