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:
May. 19, 1981
Filed:
Jun. 11, 1979
Applicant:
Inventors:
Josef Theurer, Vienna, AT;
Karl Folser, Linz-Urfahr, AT;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E01B / ;
U.S. Cl.
CPC ...
104 / ; 37104 ; 171 16 ; 404101 ;
Abstract
A mobile ballast cleaning machine comprises a ballast redistribution monitoring and control arrangement for controlling the amount of redistributed ballast, which includes an adjustment circuit responsive to output signals produced by monitoring devices for the speed of the forward drive of the machine, the speed of the ballast excavating and conveying chain drive, and the amount of cleaned ballast conveyed by the ballast redistributing conveyor.