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:
Dec. 02, 2025
Filed:
Sep. 29, 2022
Applicant:
Soterran Group, Llc, Dakota Dunes, SD (US);
Inventor:
Michael A. Rau, Omaha, NE (US);
Assignee:
Soterran Group, LLC, Dakota Dunes, SD (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 27/04 (2006.01); E01B 27/04 (2006.01);
U.S. Cl.
CPC ...
E01B 27/04 (2013.01);
Abstract
A dual ballast cribber for on-rail operation for preventing and removing cemented ballast with minimal site preparation can include a central frame, a plurality of wheels, a first pivot arm, a second pivot arm, a first cribber bucket, a second cribber bucket, a first clamp, a second clamp, and a hydraulic system. The dual ballast cribber may perform a digging cycle in 2 minutes or less. Preferably the digging cycle is performed in 45 seconds or less.