Boom arm with rock deflection feature

Details Boom arm with rock deflection feature Boom arm with rock deflection feature

1981-06-03

1984-03-27

Spar, Robert J.

Material or article handling

Vertically swinging load support

Shovel or fork type

414727, 52731, 212261, 212266, B66C 2300, E02F 376, E04C 330

Patent

active

044390890

ABSTRACT:
A loader vehicle boom arm assembly incorporates a pair of box section boom arms in which the top plate of each box section boom arm has a cross sectional shape such that the upper surface is provided with an arcuate surface that directs foreign objects encountering the arcuate top surface off the boom arm.

REFERENCES:
patent: T966007 (1978-01-01), Liehr et al.
patent: 2083226 (1937-06-01), Dornier
patent: 2668631 (1954-02-01), Reese
patent: 3273299 (1966-09-01), Hartung, Jr.
patent: 3722864 (1973-03-01), Borer et al.
patent: 4064947 (1977-12-01), Cole
patent: 4134507 (1979-01-01), Piercy et al.
patent: 4156488 (1979-05-01), Stark
patent: 4162872 (1979-07-01), Grooss et al.
patent: 4260322 (1981-04-01), Cameron

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