Combination expansion shell and resin secured mine roof anchor a

Details Combination expansion shell and resin secured mine roof anchor a Combination expansion shell and resin secured mine roof anchor a

1984-11-01

1985-08-13

Corbin, David H.

Hydraulic and earth engineering

Earth treatment or control

Chemical

411 45, E21D 2002

Patent

active

045346798

ABSTRACT:
A combination expansion shell and resin secured anchor assembly for installation in a mine roof opening including an elongated bolt having rebar attached to the upper end thereof and an expansion shell below the rebar. The assembly is inserted into a mine roof opening in the back end of which is positioned a resin and catalyst cartridge, the cartridge being ruptured by the rebar, allowing the resin and catalyst to gravitate downwardly between the opening wall and rebar, where they are mixed upon rotation of the bolt and rebar. The bolt is rotated a predetermined number of revolutions to obtain optimum mixing of the resin and catalyst, after which continued rotation of the bolt in the same direction causes outward movement of the expansion shell into gripping engagement with the mine roof.

REFERENCES:
patent: 2952129 (1960-09-01), Dempsey
patent: 3188815 (1965-06-01), Schuermann et al.
patent: 3296919 (1967-01-01), Williams
patent: 4023373 (1977-05-01), Hipkins
patent: 4162133 (1979-07-01), Clark et al.
patent: 4299515 (1981-11-01), Yates et al.

Affiliated with

Also associated with

Rating

Combination expansion shell and resin secured mine roof anchor a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Combination expansion shell and resin secured mine roof anchor a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Combination expansion shell and resin secured mine roof anchor a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2315773