Hydraulic and earth engineering – Earth treatment or control – Rock or earth bolt or anchor
Patent
1992-05-26
1993-06-29
Taylor, Dennis L.
Hydraulic and earth engineering
Earth treatment or control
Rock or earth bolt or anchor
411534, E21D 2002
Patent
active
052228355
ABSTRACT:
An article for assisting in the mixing of components of a resin grouting material within a drill hole in a rock formation to form a hardenable mass anchoring the threaded, distal end of an elongated bolt in the hole. The article includes an annular base portion having a central, through opening for threaded engagement with the bolt, and at least one leg extending from the base portion in a direction substantially parallel to the axis of the opening. The article is rotated together with the bolt, the leg having leading and trailing edges with respect to the direction of rotation. The leading edge is a flat surface substantially parallel to the axis of the bolt and the trailing edge is a relatively sharp, linear edge, non-parallel to the bolt axis. The article may be employed in chemical anchors with a single leg extending from the base portion toward the distal end of the bolt, or with a pair of legs extending in opposite directions from the base portion. In another embodiment, the article is employed in a combination chemical-mechanical anchor with the leg extending away from the distal end of the bolt, upon which the mechanical anchor is mounted with the lower end of the shell contacting and supported by the base portion of the article. Downward force exerted by the shell during expansion strips the threaded engagement of the article with the bolt.
REFERENCES:
patent: 3298144 (1967-01-01), Fischer
patent: 4129007 (1978-12-01), Rausch
patent: 4655645 (1987-04-01), Hipkins et al.
patent: 4664561 (1987-05-01), Frease
patent: 4746248 (1988-05-01), Lillis et al.
patent: 5052861 (1991-10-01), Hipkins, Sr.
McGuire Charles S.
Taylor Dennis L.
The Eastern Company
LandOfFree
Resin-mixing article for mine roof anchor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Resin-mixing article for mine roof anchor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Resin-mixing article for mine roof anchor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1750945