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:
Jul. 25, 1989
Filed:
Aug. 29, 1988
Applicant:
Inventor:
John B Whitaker, Jr, Wetumpka, AL (US);
Assignee:
Kershaw Manufacturing Co., Inc., Montgomery, AL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F / ;
U.S. Cl.
CPC ...
37104 ; 171 16 ;
Abstract
An apparatus for removing ballast utilizes eccentrically mounted disk-like undercutters to remove ballast from a position adjacent the track shoulder inwardly to a position underneath the ends of the crossties. The undercutters project inwardly from their mounting position on the lower ends of vertically disposed columns which overhang each side of a supporting carriage. The vertically disposed columns attach to horizontal sliders mounted transversely relative to the carriage. Linear actuators act to position the undercutters for ballast removal.