Hydraulic and earth engineering – Earth treatment or control – Rock or earth bolt or anchor
Patent
1993-12-23
1995-08-29
Reese, Randolph A.
Hydraulic and earth engineering
Earth treatment or control
Rock or earth bolt or anchor
411371, 411531, 411545, F16B 4300, E21D 2100
Patent
active
054454778
ABSTRACT:
A bearing plate with side walls longer than end walls so that the bearing plate has a rectangular configuration and a continuous elliptical embossment extending along the side walls and the end walls of the plate. An aperture concentrically positioned at the midpoint of the plate. The plate has a bearing surface and an opposite surface, and the continuous elliptical embossment extends from the opposite surface continuously along and inwardly of the perimeter of the bearing plate. Inner embossed areas may extend from the opposite surface on either side of the aperture along the longitudinal axis.
REFERENCES:
patent: 3544053 (1970-12-01), Ingalls
patent: 4095430 (1978-06-01), Hannan
patent: 4249835 (1981-02-01), White
patent: 4334803 (1982-06-01), Westlake et al.
patent: 4476660 (1984-10-01), Francovitch
patent: 4498815 (1985-02-01), Dye
patent: 4507020 (1985-03-01), Zeitler et al.
patent: 4708559 (1987-11-01), Locotos
patent: 4859118 (1989-08-01), Schaeffer
patent: 5102275 (1992-04-01), Hulsey
Jennmar Corporation
Reese Randolph A.
Ricci John A.
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