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. 16, 2008
Filed:
Apr. 27, 2006
Applicant:
Calvin J. Brandt, Delano, MN (US);
Inventor:
Calvin J. Brandt, Delano, MN (US);
Assignee:
Calbrandt, Inc., Delano, MN (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B61B 1/00 (2006.01); B61B 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A railcar moving or positioning system incorporating relatively simple mechanical bogey frame side member sensing systems mounted on each dog carriage of a railcar indexing system is disclosed. Each sensing system is used to control the operation of a dog mounted on the same carriage. A mechanical follower device is employed to sense the underside of an encountered bogey frame side member. Deflection of the follower is used to operate a hydraulic valve which, in turn, is used as a control cylinder to raise or lower an adjacent dog member.