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:
Mar. 12, 1985
Filed:
Oct. 18, 1982
Richard J Hargenrader, Orrville, OH (US);
James A Miller, Strasburg, OH (US);
Ingersoll-Rand Company, Woodcliff Lake, NJ (US);
Abstract
An improved drill feeding mechanism for a rock and earth drilling machine is disclosed wherein substantially all the loading forces due to the drilling and extracting operations are directed away from the upper portion of the tower. This is accomplished in the preferred embodiment by having a hydraulically displaced carriage guidingly supported for linear translation along a drill tower. Cable reeving about the carriage is anchored at a mid point on the tower and reversably displaces a guided drilling head at twice the linear velocity of the carriage and in the same direction. A hydraulic cylinder is attached at the tower base and activates the carriage.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile