Adjustable dumbbell
US6196952A · kind A · utility
Inventor
Key dates
| Filing date | Mar 8, 1999 |
| Grant date | Mar 6, 2001 |
| Priority date | — |
| Expiry date | Mar 8, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B21/00065
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A dumbbell comprises a carrying seat, a plurality of weights, and a weight-adjusting device. The carrying seat is formed of two parallel plates, two hollow rods and a grip. The plates are provided with a receiving cell, a through holes, and a plurality of grooves. Each of the weights has two identical block bodies which are provided with two through holes and a plurality of grooves. Two connection rods are disposed between the bottoms of the two block bodies and are different in length to facilitate the juxtaposing of the weights. The weight-adjusting device comprises an adjustor, and four pins which can be extracted from or retracted into the plates such that the pins are received at one end thereof in the through holes of certain block bodies, thereby coupling the carrying seat with a desired number of the weights.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.