Hydraulic and earth engineering – Earth treatment or control – Rock or earth bolt or anchor
Patent
1997-02-26
1998-06-09
Taylor, Dennis L.
Hydraulic and earth engineering
Earth treatment or control
Rock or earth bolt or anchor
411 64, 411 67, E21D 2000
Patent
active
057624518
ABSTRACT:
A mine roof bolt expansion anchor is formed from a plurality of identical shell segments. Each shell segment has a first end, a second end, and an end section at the first end. A first finger extends from the end section to the second end of the shell segment. A second finger extends from the end section toward the second end of the shell segment and terminates at a distal edge spaced from the second end of the shell segment. The end section, the first finger and the second finger each include an inner surface and an outer surface. A deformable coupling couples a plurality of shell segments together to form a multi-piece shell. The inside surfaces of the end sections, the first fingers and the second fingers of the multi-piece shell define a central aperture in which a wedge, adapted to coact with the plurality of shell segments, is received in the central aperture. Movement of the wedge from the second end to the first end of the shell segments forces the fingers to move in an outwardly direction.
REFERENCES:
patent: 1407782 (1922-02-01), Church et al.
patent: 2988950 (1961-06-01), Dempsey
patent: 3017799 (1962-01-01), Lemoine
patent: 3115056 (1963-12-01), Teeple, Jr.
patent: 3200693 (1965-08-01), Dickow
patent: 3226934 (1966-01-01), Emery
patent: 3250170 (1966-05-01), Siegel
patent: 3306051 (1967-02-01), Howlett
patent: 3311012 (1967-03-01), Williams
patent: 3469407 (1969-09-01), Kovacs
patent: 3683741 (1972-08-01), Pete
patent: 4000623 (1977-01-01), Meardi
patent: 4011787 (1977-03-01), White et al.
patent: 4100748 (1978-07-01), Hansen
patent: 4195952 (1980-04-01), Swanson
patent: 4299515 (1981-11-01), Yates et al.
patent: 4380407 (1983-04-01), Donan, Jr.
patent: 4516883 (1985-05-01), Zeitler
patent: 4518292 (1985-05-01), Calandra et al.
patent: 4753559 (1988-06-01), Pentesco
patent: 5011337 (1991-04-01), Clark et al.
patent: 5028188 (1991-07-01), Prince
patent: 5094577 (1992-03-01), Clark et al.
patent: 5098227 (1992-03-01), Wright
patent: 5275512 (1994-01-01), Wright
patent: 5344257 (1994-09-01), Wright et al.
patent: 5352066 (1994-10-01), Schaeffer et al.
Calandra, Jr. Frank
Guo Song
Stankus John C.
Jennmar Corporation
Taylor Dennis L.
LandOfFree
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