Hydraulic and earth engineering – Earth treatment or control – Shoring – bracing – or cave-in prevention
Patent
1996-03-07
1998-09-22
Taylor, Dennis L.
Hydraulic and earth engineering
Earth treatment or control
Shoring, bracing, or cave-in prevention
4052591, 405288, 411545, E21D 2100
Patent
active
RE0359025
ABSTRACT:
An elongated channel member for supporting the surface of an underground rock formation includes a base portion with a bearing surface for contacting the rock strata and an opposite surface having a longitudinally extending central rib and flanged edges for resisting deflection and bending of the channel member under the load of the rock strata. A plurality of openings spaced a preselected distance apart extend through the central rib. A bearing plate is positioned in overlying abutting relation with each opening in the channel member. The bearing plate includes embossed areas and longitudinally flanged edges that are complementary in shape with the central rib and flanges on the channel to securely engage the bearing plate on the channel member. Thus, the bearing plate engages the channel member to restrain longitudinal and lateral movement of the bearing plate on the channel member and stiffen the channel member to resist bending. An anchor bolt extends through the aligned openings in the bearing plate and channel member into a bore hole drilled in the rock formation. Anchoring the bolt in the bore hole compresses the bearing plate against the channel member to urge the channel member into compressive relation with the surface of the rock formation to support the rock formation.
REFERENCES:
patent: 2192554 (1940-03-01), Misseeff-Muspratt
patent: 2398130 (1946-04-01), Beijl
patent: 2667037 (1954-01-01), Thomas et al.
patent: 2748594 (1956-06-01), Edwards
patent: 2854824 (1958-10-01), Curry et al.
patent: 3022100 (1962-02-01), Heintzmann
patent: 3023862 (1962-03-01), Launay
patent: 3076672 (1963-02-01), Heintzmann et al.
patent: 3090203 (1963-05-01), Durget
patent: 3126708 (1964-03-01), Jasper
patent: 3168815 (1965-02-01), Blenkle et al.
patent: 3226934 (1966-01-01), Emery
patent: 3238731 (1966-03-01), Seifert et al.
patent: 3395542 (1968-08-01), Deloffre
patent: 3413812 (1968-12-01), Fox
patent: 3415064 (1968-12-01), Talobre
patent: 3478523 (1969-11-01), Reusser et al.
patent: 4037418 (1977-07-01), Hannan
patent: 4249835 (1981-02-01), White
patent: 4439065 (1984-03-01), Constapel
patent: 4507020 (1985-03-01), Zeitler et al.
patent: 4634318 (1987-01-01), Koumal
patent: 4708559 (1987-11-01), Locotos
"Keeping the Roof Over Your Head", Keystone Bolt Company, 1979.
"J-Channel Beams For Mine Roof Support", Coal Age, Apr., 1987.
"Jennmar Mine Roof Problem-Solving Systems", Jennmar Corporation.
"Jennmar-J-Channel Beams", Jennmar Corp., Jul. 1986.
Calandra, Jr. Frank
Stankus John C.
Stewart Eugene H.
Jennmar Corporation
Taylor Dennis L.
LandOfFree
Bearing plate does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Bearing plate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bearing plate will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1611119