Truss bracket
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United States of America Patent
Stats
-
Jul 14, 1987
Grant Date -
N/A
app pub date -
Jul 25, 1985
filing date -
Jul 25, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A truss bracket for use in a mine roof support system using double tie bars. The truss bracket comprises a substantially flat, planar member for engagement with the mine roof, and an extension depending normal to the planar member. The extension has an angularly disposed channel in communication with an aperture in the planar member. The channel and aperture accommodate a rib or anchor bolt for attachment of the truss bracket. The extension also includes a pair of openings spaced from each other and from the planar member. Each of the openings accommodate a tie bar in parallel relationship to the planar member and to each other. Most preferably, the truss bracket further comprises a tie bar support ring angularly attached to the planar member to accommodate a tie bar in the event of sagging.
First Claim
Family
International Classification(s)
Cited Art Landscape
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