Spring leaf comprising pultruded beam

Details Spring leaf comprising pultruded beam Spring leaf comprising pultruded beam

1980-05-16

1984-12-25

Halvosa, George E. A.

Spring devices

Fibrous

Glass fiber

273 73F, 273DIG23, 428251, F16F 136

Patent

active

044899220

ABSTRACT:
A vehicular spring leaf comprises a pultruded beam that has about 40-75% by volume filamentary solids of a first modulus and a remainder fraction comprising continuous organic solid of a second, lower modulus that binds together the filamentary solids. A first portion of at least about 80% by weight of the filamentary solids is a multitude of discrete, tensilely stressed filamentary solids, densely packed substantially uniformly throughout the organic solid and coextending the beam longitudinally in a plurality of planes that accept tensile or compressive stress, respectively, upon a flexure of the leaf that bends the beam. A second portion of up to about 10% by weight of filamentary solids is randomly oriented on a surface of the beam, and a third portion of up to about 10% by weight of filamentary solids is woven oriented substantially across one another in one of the planes.

REFERENCES:
patent: 2052062 (1936-08-01), Wallace
patent: 2600843 (1952-06-01), Bush
patent: 2829881 (1958-04-01), Morris
patent: 3142598 (1964-07-01), Rosen
patent: 3292918 (1966-12-01), Hart
patent: 3493222 (1970-02-01), Mathers et al.
patent: 3530212 (1970-09-01), Kienle et al.
patent: 3718161 (1973-02-01), Woodson
patent: 3761345 (1973-09-01), Smith
patent: 3787051 (1974-01-01), Johns
patent: 3900650 (1975-08-01), Sedore
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patent: 4256525 (1981-03-01), Allen
patent: 4260143 (1981-04-01), Kliger
Part Page No. 14-31-1 of 1979 Ford Light Truck Manual.

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