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.:

US 7172203 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 06, 2007

Filed:

Dec. 13, 2004
Applicant:

Ralph Lipsey Barnett, Wilmette, IL (US);

Inventor:

Ralph Lipsey Barnett, Wilmette, IL (US);

Assignee:

Triodyne Safety Systems, L.L.C., Northbrook, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B62D 57/00 (2006.01); B60T 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A limited movement roller device and related method for moving a load includes a frame with a load bearing surface. A plurality of rollers are moveable through the frame and connected with respect to each other. A stop block is positioned within a void between two rollers of the plurality of rollers so as to obstruct movement of the plurality of rollers through the frame. Accordingly, a load may be maneuvered by reaching a braking point of the roller device and then rotating the load and the roller device 180° relative to each other prior to moving the load again to the braking point. This process may then be repeated to move the load without risk of losing control of the load, such as down an incline.


Find Patent Forward Citations

Barnett, Ralph. (2007). Limited movement roller system (U.S. Patent No. 7172203). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7172203

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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