Hydraulic and earth engineering – Earth treatment or control – Shoring – bracing – or cave-in prevention
Patent
1996-06-03
1998-06-23
Graysay, Tamara L.
Hydraulic and earth engineering
Earth treatment or control
Shoring, bracing, or cave-in prevention
411156, E21D 2100
Patent
active
057695709
ABSTRACT:
A mine roof bearing plate having a planar member having a topside, an underside and an elastically deformable domed portion extended downwardly from the underside. A central section at the outer extremity of the domed section defines a bolt hole. The outer extremity of the domed portion includes a downwardly facing beveled annular bearing surface which mates with a spherical washer. A method of tensioning a cable bolt including the steps of placing a spherical washer over a first end of a cable bolt having a bolt head on the other end, placing the inventive mine roof bearing plate over the end of the cable bolt, inserting the cable bolt into a mine roof bolt hole, exerting pressure on the bolt head whereby the bolt head presses on the spherical washer and elastically deforms the domed portion, installing the cable bolt in the bolt hole and releasing pressure from the other end of the cable bolt whereby the domed portion substantially reforms to its original configuration to exert tension of the cable bolt.
REFERENCES:
patent: D301687 (1989-06-01), Cassidy et al.
patent: 2748594 (1956-06-01), Edwards
patent: 2850937 (1958-09-01), Ralston
patent: 3133468 (1964-05-01), Cumming
patent: 3224202 (1965-12-01), Durget
patent: 3238731 (1966-03-01), Seifert et al.
patent: 3329058 (1967-07-01), Cumming
patent: 3478523 (1969-11-01), Reusser et al.
patent: 3702060 (1972-11-01), Cumming
patent: 4112693 (1978-09-01), Collin et al.
patent: 4445808 (1984-05-01), Arya
patent: 4648753 (1987-03-01), Stephan
patent: 4652178 (1987-03-01), Kates et al.
patent: 4708559 (1987-11-01), Locotos
patent: 5192146 (1993-03-01), Landsberg
patent: 5230589 (1993-07-01), Gillespie
patent: 5282710 (1994-02-01), Triesethau
patent: 5628710 (1997-05-01), Lesslie
Parker, Sybil P., McGraw-Hill Dictionary of Scientific and Technical Terms, 4th Edition, p. 502, 1989.
Stankus John C.
Stewart Eugene H.
Taylor Kendal L.
Graysay Tamara L.
Jennmar Corporation
Mayo Tara L.
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