Robert A Pollard

US Patent:

54925797, Feb 20, 1996

Filed:

Feb 9, 1994

Appl. No.:

8/194222

Inventors:

Gregory S. Hosford - Columbia SC
John F. Boozer - Pomaria SC
Robert A. Pollard - Newberry SC
John R. Lewis - Little Mountain SC

Assignee:

Shakespeare Company - Newberry SC

International Classification:

B32B 3100

US Classification:

156 64

Abstract:

A hollow, tapered, fiber-reinforced plastic utility pole, and a method for making the pole. The pole is designed by a computer-modelling technique that simulates applying resin-coated, reinforcing strands over the outer surface of a mandrel. A plurality of test stations are incrementally spaced from the tip portion to the butt portion of the pole simulated on the mandrel. The thickess-to-diameter ratio must be equal to or greater than an established constant at each station or additional circuits of resin-coated, reinforcing strands deemed to have been applied, as required. One then calculates the stress resistance at each successive station to determine if the acceptable stress is greater than the stress resistance required. Whatever additional circuits of resin-coated, reinforcing strands are necessary are then deemed to have been applied. One then calculates the projected failure load in response to the deflection calculated to occur in response to the rated load at each station to determine if the actual loading to be applied to the pole in relation to the projected failure load at that station is acceptable.

US Patent:

57041873, Jan 6, 1998

Filed:

Nov 30, 1995

Appl. No.:

8/565113

Inventors:

Gregory Sander Hosford - Columbia SC
John Franklin Boozer - Pomaria SC
Robert Ashley Pollard - Newberry SC
John Richard Lewis - Little Mountain SC

Assignee:

Shakespeare Company - Newberry SC

International Classification:

B32B 3100
E04C 336

US Classification:

527361

Abstract:

A hollow, tapered, fiber-reinforced plastic utility pole, and a method for making the pole. The pole is designed by a computer-modelling technique that simulates applying resin-coated, reinforcing strands over the outer surface of a mandrel. A plurality of test stations are incrementally spaced from the tip portion to the butt portion of the pole simulated on the mandrel. The thickness-to-diameter ratio must be equal to or greater than an established constant at each station or additional circuits of resin-coated, reinforcing strands deemed to have been applied, as required. One then calculates the stress resistance at each successive station to determine if the acceptable stress is greater than the stress resistance required. Whatever additional circuits of resin-coated, reinforcing strands are necessary are then deemed to have been applied. One then calculates the projected failure load in response to the deflection calculated to occur in response to the rated load at each station to determine if the actual loading to be applied to the pole in relation to the projected failure load at that station is acceptable.