Chocks

Details Chocks Chocks

1974-05-17

1976-05-18

Frazier, Roy D.

Supports

Pipe or cable

Extending through plate

241145, 24129R, 242305R, 24115M, 24201R, 24206R, 248317, A47G 2900

Patent

active

039572374

ABSTRACT:
Generally, each of my chock embodiments has one or more of the following features: a rigid body having a nonsuperficial recessed surface portion or portions on one or more of its working surfaces for saddling a rock formation; a cap portion along the top edge of each working surface of the rigid body; a runner aperture opening solely on the bottom surface of the rigid body; a separate anchor wedged in the runner aperture for securing the runner and reinforcing the rigid body; a runner anchor recessed from the top and/or bottom surfaces of the rigid body; a double loop cable runner; and in the smallest sizes, a rigid body having one or more hooked portions for setting over a constriction of a crack in a rock formation and a second portion protruding from the crack for securing a runner.

REFERENCES:
patent: 1028104 (1912-06-01), Fletcher
patent: 1745449 (1930-02-01), Poor
patent: 3002780 (1961-10-01), Eggeman
patent: 3148427 (1964-09-01), Hoffstrom
patent: 3323185 (1967-06-01), Maras
patent: 3654672 (1972-04-01), Bullar
patent: 3672006 (1972-06-01), Fidrych
patent: 3778072 (1973-12-01), Salomon
patent: 3795947 (1974-03-01), Thompson

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