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. 04, 1986
Filed:
Oct. 14, 1980
Leonard R Nitzberg, Knoxville, TN (US);
Patent Development, Ltd., Knoxville, TN (US);
Abstract
A method and machine for removing blockage and silt from abandoned auger holes preparatory to mining a portion of the remaining ore or preparatory to the placement of charges in said holes. Initially, the highwall is faced up by removing blockage proximate and external to the auger hole as with conventional earth moving equipment. The blockage from within the mouth of the auger hole is removed to expose blockage deposited within the auger hole at locations spaced from the auger hole mouth. Blockage at locations spaced from the auger hole mouth is removed by a apparatus which collapses to penetrate the blockage and is deployed to engage the blockage such that as the machine is withdrawn from the auger hole, the blockage is removed therewith. A device is provided for completing the auger hole cleaning operation by entraining silt or other contaminates in a stream of water and collecting the silt laden water which is transported and discharged at a remote location.