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 9221433 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 29, 2015

Filed:

Oct. 14, 2011
Applicant:

Thomas F. Dunlap, West Linn, OR (US);

Inventor:

Thomas F. Dunlap, West Linn, OR (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60T 1/00 (2006.01); A61H 3/04 (2006.01); B60T 1/04 (2006.01); B60T 1/06 (2006.01); B60T 7/10 (2006.01); B60T 11/04 (2006.01); F16D 63/00 (2006.01);
U.S. Cl.
CPC ...
B60T 1/005 (2013.01); A61H 3/04 (2013.01); B60T 1/04 (2013.01); B60T 1/06 (2013.01); B60T 7/104 (2013.01); B60T 11/046 (2013.01); F16D 63/006 (2013.01); A61H 2003/046 (2013.01);
Abstract

The present invention is a safety braking system for a hand-pushed rollator, which allows the user to engage different operation modes: a park mode, a walk mode, and a brake mode. The present invention comprises a wheel mechanism, a cable assembly, and a handlebar mechanism. The wheel mechanism allows a wheel to rotate during walk mode, to engage the wheel with a parking brake during park mode, and to engage the wheel with a friction brake during brake mode. The wheel mechanism pivots the parking brake and the friction brake on a lever in order to switch between the different operation modes. The handlebar mechanism allows the user to shift between the different operation modes and is engaged to the wheel mechanism through the cable assembly. The handlebar mechanism uses two levers that are pushed and pulled by the user in order to shift between the different operation modes.


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