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 8641588 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 04, 2014

Filed:

Aug. 16, 2011
Applicant:

Johann B. Verheem, Encinitas, CA (US);

Inventor:

Johann B. Verheem, Encinitas, CA (US);

Assignee:

Other;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A63B 23/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A resistance chair includes an elevated stationary seat with a front edge and a back edge. An arm is rotatably engaged with the back edge of the seat and is rotatable to a position below horizontal with respect to the elevated stationary seat. A back support is secured to the arm and supports the back of a user sitting on the elevated stationary seat. At least one resistance element is connected to the elevated stationary seat and urges the first arm to an upright start position and assists a user performing an abdominal crunch to return to an upright abdominal crunch position from a fully extended abdominal crunch position with the arm below horizontal with respect to the elevated stationary seat. The resistance element also resists against rotation of the arm away from the upright start position and resists against the user moving from the upright abdominal crunch position to the fully extended abdominal crunch position.


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