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:
Jul. 03, 2012
Filed:
Sep. 15, 2010
Applicants:
Yi-tzu Chen, Bade, TW;
Chang-feng Lin, Yonghe, TW;
Inventors:
Yi-Tzu Chen, Bade, TW;
Chang-Feng Lin, Yonghe, TW;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An abdominal exercise device has a base, a seat mounted on the base, a front frame rotatably on a front of the base, a rear frame rotatably mounted on a rear of the base, a connecter connected pivotally to the front frame and the rear frame, an adjusting assembly mounted on the base and at least one resilient element connected to the rear frame and adjusting assembly. The at least one resilient element pulls the rear frame along with the connecter and the front frame to assist in performing sit-ups so abdominal muscles of a user using the abdominal exercise device is trained.