The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 28, 1997

Filed:

Jan. 24, 1996
Applicant:
Inventors:

Ward D Morrison, Claremont, NH (US);

Perry L Coombs, Claremont, NH (US);

Assignee:

Cannon Industries, Inc, Claremont, NH (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21D / ;
U.S. Cl.
CPC ...
405303 ; 4052591 ; 29809 ;
Abstract

The present invention relates to a device for setting rock bolts. The device employs a common element for affixing the end of a feed shell with respect to a rock surface, stabilizing the feed shell and providing a common centralizer for centering all subsequent bolt setting operations. The device also has a bolt delivery system which stores, advances and positions the bolts in line with a bolt driver. The bolt delivery system has a bolt magazine which, when in a work position, advances bolts along peripheral surfaces into a position where they are engaged by a bolt driver. The bolt so engaged is then advanced into the centralizer at which point the bolt magazine is rotated away from the engaged bolt to a park position where it will not interfere with the bolt driver as it continues to advance the bolt. The bolt magazine preferably also serves as a bolt plate magazine which accommodates bolt plates with which the bolts are engaged. The bolt plates are stabilized by a bolt plate channel having an opening through which the bolt plates can exit the magazine.


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