Multiple-part pole
AssigneeNewmark International, Inc.
InventorsEarl R. Foust, Wesley J. Oliphant, Fouad H. Fouad, Kenneth L. Sharpless
Life of this patent
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Abstract
This invention relates to pole structures used for supporting transmission and distribution lines, lighting and communications systems, highway signs, traffic signals, and the like. More specifically, this invention relates to a new and useful design of a multi-sectioned pole, with at least one telescoping upper section made of metal or another similar lightweight material and a base section composed of concrete or similar material that can be directly embedded into the ground without the need for baseplate-type foundations, or other preparatory work.
Claims12
A hybrid pole, comprising:
- a concrete base including upper and lower portions;
- and a hollow upper extension pole including a thin wall having inner and outer surfaces and having a lower end that is telescopically mounted over the upper portion of said concrete base, the inner surface of said lower end being curved away from said concrete base in order to reduce the opportunity for the upper pole to cut the concrete base and in order to ease assembly of said upper pole onto the concrete base;
- wherein said curved inner surface has a substantially parabolic shape, so that it approaches the concrete base substantially tangentially.
A hybrid pole, comprising:
- a concrete base pole, having a circular cross-section lower portion and a multi-sided polygonal-shaped upper portion, said concrete base pole including embedded inner and outer cages of reinforcing strands;
- and
- a multi-sided, polygonal-shaped hollow upper pole, conforming to the shape of said concrete base pole upper portion, and telescopically mounted over said concrete base pole, wherein both the concrete base pole and the multi-sided upper pole are tapered, so that, as the upper pole moves down onto the lower pole, it reaches a point at which there is a tight fit.
A hybrid pole, comprising:
- a concrete base pole, having a circular cross-section;
- a hollow metal upper pole, having a polygonal cross-section, with a lower portion telescopically mating with said concrete base pole with a friction fit, whereby the lower portion of the hollow metal pole deforms to a substantially circular cross-section to conform to the shape of the concrete base pole.
Dependencies are inferred from the claim text.