Torque rated floating marine propeller wrench

Details Torque rated floating marine propeller wrench Torque rated floating marine propeller wrench

1993-01-25

1993-11-23

Meislin, D. S.

Tools

Wrench, screwdriver, or driver therefor

Rigid jaws

81900, B25B 1306

Patent

active

052633896

ABSTRACT:
A floating marine propeller wrench (18) is provided for removing a marine propeller nut (16), and comprises a floating member composed of a material selected to have a specific gravity less than or equal to 1.0, to enable floatation, yet strong enough to apply torque of at least 50 lb.ft. to the nut. The floating member is composed of chemically coupled long glass fiber reinforced polypropylene, particularly ten percent glass by weight, one percent foaming agent by weight, and the balance polypropylene. The material is also selected to provide a user detectable slight deflection (70) of a handle portion (24) when approximately 50 lb.ft. is applied to the nut by a socket portion (22), to provide a combined floating marine propeller wrench and torque meter.

REFERENCES:
patent: 3836763 (1974-09-01), Hoffman et al.
patent: 3908489 (1975-09-01), Yamamoto et al.
patent: 4145938 (1979-03-01), Laird, Jr.
patent: 5022875 (1991-06-01), Karls
"Quicksilver Marine Parts And Accessories", Part 90-18379-92, p. 6, published Third Quarter 1991.
Fundamentals of Engineering Materials, Peter Thornton & Vito Colangelo, Prentice-Hall Inc., pp. 588-590, 1985.

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