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.
Patent No.:
Date of Patent:
Feb. 27, 1996
Filed:
Dec. 24, 1994
Ward D Morrison, Claremont, NH (US);
Perry L Coombs, Claremont, NH (US);
Cannon Industries, Inc., Claremont, NH (US);
Abstract
The present invention relates to a system and a method which employs gas to position a resin sausage into a bolt hole drilled by a rock bolter. The system provides a controlled quantity of liquid into a resin sausage insertion chamber prior to supplying the gas to eject the sausage from the resin sausage insertion chamber. The liquid enhances the reliability and accuracy of the placement of the sausages in the bolt hole. Preferably, the system includes an expansion chamber through which the gas passes. The expansion chamber is provided so that the gas can be partially displaced by liquid and thereafter, liquid will be advanced into the resin sausage insertion chamber prior to the gas. The system can either have its own fluid supply or alternatively use a fluid supply of the rock bolter if one is provided for flushing the bolt holes. In either case, it is preferred that the expansion chamber is adjustable so as to allow the volume of liquid and gas to be adjusted for the operating conditions of the rock bolter.