US3552698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Break-away coupling for poles
Assignee: W. F. Keegan & Co Inc
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Filing: 1968-06-18
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Granted: 1971-01-05
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Expires: 1988-06-18
Abstract
Abstract A pole-supporting member, a fixed foundation, and coupling means connecting said member to said foundation with a controlled force and in such a manner that, when subjected to horizontal impact of a given value, the pole is automatically disengaged from the coupling and is free to move in the direction of the impact.
Inventors
- 👤 Robert E Kinney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:40
CPC Classifications
E; E01; E01F; E01F9/00; E01F9/60; E01F9/623; E01F9/631; E01F9/635; F; F16; F16B; F16B2200/00; F16B2200/63
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
165 words
Means for detachably securing a vertical pole to a fixed support, said means including: a plurality of spaced vertical studs fixedly secured to the road bed; a base plate adapted to support a pole; a plurality of couplings secured to said studs, respectively; each coupling comprising a top wall having a laterally extenDing opening therein leading from the edge toward the center thereof for the passage of a bolt therethrough, with the head of the bolt bearing against the underside of said top wall; said base plate having openings for the passage therethrough of the upper portions of said bolts, respectively; a lower washer carried by and disposed between the head of the bolt and the underside of the top wall of each coupling; an upper washer carried by said bolt and disposed between said top wall and said base; and nuts for engaging the portions of the bolts which pass through said opening to clamp said base and said washers to said top walls.
Claim 2
Dependent Claim
165 words
Means for detachably securing a vertical pole to a fixed support, said means including: a plurality of spaced vertical studs fixedly secured to the road bed; a base plate adapted to support a pole; a plurality of couplings secured to said studs, respectively; each coupling comprising a top wall having a laterally extenDing opening therein leading from the edge toward the center thereof for the passage of a bolt therethrough, with the head of the bolt bearing against the underside of said top wall; said base plate having openings for the passage therethrough of the upper portions of said bolts, respectively; a lower washer carried by and disposed between the head of the bolt and the underside of the top wall of each coupling; an upper washer carried by said bolt and disposed between said top wall and said base; and nuts for engaging the portions of the bolts which pass through said opening to clamp said base and said washers to said top walls.
Claim 3
Dependent Claim
31 words
The structure defined in claim 1 wherein the washers and coupling are made of material having a low coefficient friction value permitting the base to move laterally off of the couplings.
Claim 4
Dependent Claim
25 words
The apparatus defined in claim 1 wherein said top wall is made of iron and at least one of said washers is made of bronze.
Claim 5
Dependent Claim
160 words
Means for detachably securing a vertical pole to a fixed support, said means including: a plurality of spaced vertical studs fixedly secured to the road bed; a base plate adapted to support a pole; at least one coupling secured to said stud; said coupling comprising a top wall having a laterally, inwardly extending opening therein for the passage of a bolt therethrough, with the head of the bolt bearing against the underside of said top wall; said base plate having at least one opening for the passage therethrough of the upper portions of said bolt; a lower washer carried by and disposed between the head of the bolt and the underside of said top wall of said coupling; an upper washer carried by said bolt and disposed between said top wall and said base; and a nut for engaging the portion of the bolt which passes through said opening to clamp said base and said washers to said top wall.
Claim 6
Dependent Claim
160 words
Means for detachably securing a vertical pole to a fixed support, said means including: a plurality of spaced vertical studs fixedly secured to the road bed; a base plate adapted to support a pole; at least one coupling secured to said stud; said coupling comprising a top wall having a laterally, inwardly extending opening therein for the passage of a bolt therethrough, with the head of the bolt bearing against the underside of said top wall; said base plate having at least one opening for the passage therethrough of the upper portions of said bolt; a lower washer carried by and disposed between the head of the bolt and the underside of said top wall of said coupling; an upper washer carried by said bolt and disposed between said top wall and said base; and a nut for engaging the portion of the bolt which passes through said opening to clamp said base and said washers to said top wall.
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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |