Title: Tubular pole slip joint construction

Abstract: A slip joint construction for a tubular pole section of a utility pole such as for electrical transmission or lighting wherein a male portion of a tapered pole section fits telescopically within a female portion of another tapered pole section. The female portion is provided with a back-up strip extending along the long seams thereof. The male portion is provided with slots which extend along the long seams thereof, each slot extending the length of the slip joint. A doubler plate is welded on the inside of the male portion to extend across and along the longitudinal extent of each slot.

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Other info:

Inventors: Meisberger, Raymond F. (West Chester, PA, US)

Application Number: 550373
Filing Date: 1975-02-18
Publication_date: 1976-02-03
Assignee: Bruce-Lake Company (Coatesville, PA)
Primary Class(es): 403/334 52/726.4
Other Classes:
US Patent Ref:

3034209	May, 1962	Bianca et al.	52/726.
3071214	Jan, 1963	Steinbichler	52/726.
3865498	Feb, 1975	Okuto et al.	52/726.

Other Refs:
Primary Examiner: Kundrat, Andrew V.
Assistant Examiner:
Attorney: Smith, Harding, Earley & Follmer