Supports – Brackets – Specially mounted or attached
Patent
1998-08-10
2000-08-29
Ramirez, Ramon O.
Supports
Brackets
Specially mounted or attached
248323, 248925, 411 75, 411 80, A47F 508
Patent
active
061095788
ABSTRACT:
The apparatus is for engaging a generally cylindrical borehole, and includes first and second chock portions, the first chock portion being generally spherical, the second being a trough-shaped wedge. The wedge-shaped second chock portion has a thinner end and a thicker end, and first and second primary surfaces. The first primary surface is cylindrically convex and dimensioned to seat flush against the wall of the borehole. The second primary surface is shaped as a concave, inclined trough dimensioned to permit the spherical first chock portion to slide freely therewithin. A primary tether affixed to the first chock portion is used to position the apparatus in the borehole, and includes a loop from which a user's body weight or gear may be suspended. A chock control cable operable with a finger pull bar is affixed to and operable to move the second chock portion in the borehole, lateral to the first chock portion. Sheaths protect and separate the primary tether and the chock control cable from one another. A flattened belt on the outermost surface of the first chock portion aids engagement with the borehole surface. A flattened belt on the first chock portion's inner surface aids engagement with the trough of the second chock portion.
REFERENCES:
patent: 3478641 (1969-11-01), Dohmeier
patent: 3903785 (1975-09-01), Pepper
patent: 3957237 (1976-05-01), Campbell
patent: 4082241 (1978-04-01), Burkey
patent: 4184657 (1980-01-01), Jardine
patent: 4422607 (1983-12-01), Vallance
patent: 4464076 (1984-08-01), Leibhard
patent: 4572464 (1986-02-01), Phillips
patent: 4607992 (1986-08-01), Mauritz
patent: 4611963 (1986-09-01), Frohlich
patent: 4643378 (1987-02-01), Guthrie et al.
patent: 4715568 (1987-12-01), Best
patent: 4818163 (1989-04-01), Bereiter
patent: 4834327 (1989-05-01), Byrne
patent: 4869342 (1989-09-01), Borst
patent: 5042888 (1991-08-01), Shinjo
patent: 5253964 (1993-10-01), Swemmer
patent: 5484132 (1996-01-01), George
Harsh Realm Solutions, LLC, Redmond, WA; Rebolts (tm) Removable.
Expansion Bolts; Climbing Magazine May 1-Jun. 15, 1997, p. 159.
Guthrie Karl
Schwartz Joseph
Gerber Joseph E.
Landry Walter
Ramirez Ramon O.
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