Large-tip composite golf shaft

Details Large-tip composite golf shaft Large-tip composite golf shaft

1990-04-30

1992-03-03

Seidleck, James J.

Stock material or miscellaneous articles

Hollow or container type article

Glass, ceramic, or sintered, fused, fired, or calcined metal...

428 347, 428368, 273 77R, 273 80A, 273 80B, 273 80C, 273 80R, 138130, 138132, 138144, 156188, 156190, B32B 512, A63B 5310, B65H 8100

Patent

active

050931628

ABSTRACT:
A composite golf club shaft and the method of constructing the shaft is disclosed. The hollow circular shaft includes a standard butt end having a constant outside diameter along a length of the shaft and a tip end having a constant outside diameter sustantially larger than the tip of a standard shaft, with the constant diameter of the tip end and butt end extending along predetermined lengths of the shaft. An intermediate section of the shaft tapers between the diameters of the butt and tip ends. The shaft is manufactured by wrapping a group of circumferential sections about a mandrel, each layer comprising either standard modulus carbon-graphite fibers or fiberglass fibers in a matrix, with the finished product being heat-cured to produce a golf club shaft.

REFERENCES:
patent: 3313541 (1967-04-01), Benkoczy et al.
patent: 3998458 (1976-12-01), Inoue et al.
patent: 4023801 (1977-05-01), Van Auken
patent: 4097626 (1978-06-01), Tennent
patent: 4132579 (1979-01-01), Van Auken
patent: 4319750 (1982-03-01), Roy
patent: 4455022 (1984-06-01), Wright
patent: 4757997 (1988-07-01), Roy

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