Chocks
OwnerGaylord K. Campbellinventor
Life of this patent
Estimating the term…
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.
Claims15
A mountaineering chock comprising:
- a rigid body having an aperture for accommodating a runner, a bottom surface, said runner aperture opening on said bottom surface, at least one pair of opposed external working surfaces tapering towards said bottom surface for engaging a rock formation, and at least one non-superficial concave surface portion formed in the lateral midsection of at least one of said opposed working surfaces for saddling a rock formation, said non-superficial concave surface portion being distinct from said runner aperture, the general centerline of said non-superficial concave surface portion having a substantially upright orientation in the direction of the taper of the working surface in which it is formed whereby said concave surface portion restricts the lateral displacement of the chock from the saddled rock formation.
A mountaineering chock comprising:
- a rigid body having a vertical axis and having an aperture for accommodating a runner, a bottom surface, said runner aperture opening on said bottom surface, at least one pair of opposed external working surfaces converging towards said bottom surface and forming a taper on said rigid body toward said vertical axis and at least one of said working surfaces of said pairs of said opposed working surfaces having a non-superficial raised cap portion extending upward and substantially parallel to said vertical axis from the top edge of said working surface for reinforcing the top edge thereof against shear forces.
Dependencies are inferred from the claim text.