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:
Apr. 23, 1996
Filed:
Jan. 27, 1995
Charles L Adams, Fort Worth, TX (US);
Other;
Abstract
A weight lifting device, such as a dumbbell or bar bell, for exercise is provided with a handle to which a pair of fluid impermeable hollow chambers or containers are disposed at opposite ends for holding a weighting fluid. Each chamber has a sealable opening for accessing the interior of the hollow chamber and is provided with a plug for sealing the opening. A plurality of fluid displacement members are provided and are sized to pass through the sealable opening into the interior of the hollow chamber. The fluid displacement members displace a selected volume of the weighting fluid within the chambers so that the volume of fluid required to fill the chambers can be varied, thus varying the weight of the device.