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:
Jan. 16, 2018
Filed:
Oct. 07, 2016
Applicant:
Electric Friends As, Oslo, NO;
Inventor:
Anders Tomren, Oslo, NO;
Assignee:
Electric Friends AS, Oslo, NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B61B 13/00 (2006.01); B61D 17/00 (2006.01);
U.S. Cl.
CPC ...
B61B 13/00 (2013.01); B61D 17/00 (2013.01);
Abstract
A dolly system is disclosed, which overcomes drawbacks related to unwanted noise and jerks of prior art dolly systems. The dolly system comprises wheel assemblies () that have independently rotating lateral support wheels () in combination with a center wheel () that interact with a continuous resilient element () when rolling along a rail track, without encountering any gaps or bumps and without producing squeal noise due to so-called wheel-climbing that may occur in curves along the rail track.