Patent US3562403A successfully refreshed from Google Patents.
US3562403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resin coated wooden poles and light standards incorporating same
Assignee: Cascade Pole Co
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Filing: 1968-03-20
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Granted: 1971-02-09
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Expires: 1988-03-20
Abstract
Abstract Resin coated, preservative impregnated wooden poles having one or more longitudinal kerfs, for stress relieving and ventilation purposes, at least one kerf being cut to a depth slightly greater than the thickness of the sapwood of the pole. A shielded electrical conduit is emplaced in one such kerf and covered by a wood putty or like filler restoring the surface profile of the pole, and the pole is encased to a thickness of at least about one-tenth inch with a sprayed-on resin mix, such as a mixture of chopped glass fibers and catalyzed polyester resin. Modifications include a covering of cellophane, paper or the like applied between the pole and the plastic coating especially when an oilbase preservative is used, and a top cap to prevent entrance of moisture and to ventilate the interior of the pole. Various luminaire support arms and techniques for mounting thereof on the pole are also disclosed.
Inventors
- 👤 Victor C Monahan
- 👤 Gerald L Monahan
- 👤 Clyde Y Cundy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:30
CPC Classifications
H; H02; H02G; H02G7/00; H02G7/20; H02G7/205; F; F21; F21V; F21V21/00; F21V21/10; F21V21/108; F21V21/116; E; E04; E04H; E04H12/00; E04H12/24
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
19 words
A utility pole according to claim 1, wherein said resin coating is at least about one-tenth inch in thickness.
Claim 2
Dependent Claim
31 words
The utility pole as defined by claim 1, wherein said kerf and said slot are along substantially diametrically opposed lines and are substantially parallel to the longitudinal axis of the pole.
Claim 3
Dependent Claim
19 words
The utility pole defined by claim 1, wherein said resin coating comprises sprayed mixed resin and chopped glass fibers.
Claim 4
Dependent Claim
18 words
The utility pole of claim 1, wherein said resin coating consists essentially of glass fiber reinforced polyester resin.
Claim 5
Dependent Claim
23 words
The utility pole as defined by claim 1, further including a layer of moisture impervious material between the wood and said resin coating.
Claim 6
Dependent Claim
31 words
The utility pole as defined by claim 6, wherein said preservative is of an oil-base type and said cover of moisture impervious material is a wrap of cellophane or the like.
Claim 7
Dependent Claim
37 words
The utility pole as defined by claim 1, wherein said preservative is of a water-base type and said pole further comprises a cap covering the top of said pole and overlapping the top of said resin coating.
Claim 8
Dependent Claim
138 words
A resin coated wooden utility pole comprising: a. a wooden pole having rings of heartwood and sapwood encircling a longitudinal axis and also having a lower portion adapted to be inserted into the ground; b. at least one kerf extending through said sapwood into said heartwood and extending for at least most of the length of said pole, said kerf having a mouth on the periphery of the pole; c. a preservative impregnating at least most of the sapwood and at least part of the heartwood of the kerfed pole; d. a layer of moisture impervious material disposed about said pole and spanning the mouth of said kerf, an electrical conduit disposed in said kerf; and e. a substantially impervious, protective resin coating covering the exterior surface of said layer for at least most of the length thereof.
Claim 9
Dependent Claim
140 words
A resin coated wooden utility pole comprising: a. a wooden pole having rings of heartwood and sapwood encircling a longitudinal axis and also having a lower portion adapted to be inserted into the ground; b. at least one kerf extending through said sapwood into said heartwood and extending for at least most of the length of said pole, said kerf having a mouth on the periphery of the pole; c. an oil-base preservative impregnating at least most of the sapwood and at least part of the heartwood of the kerfed pole; d. a wrap of cellophane or the like disposed over said pole and spanning the mouth of said kerf, an electrical conduit disposed in said kerf; and e. a substantially impervious, protective resin coating covering the exterior surface of said wrap for at least most of the length thereof.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |