Barbell system
US8672815B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Nov 9, 2011 |
| Grant date | Mar 18, 2014 |
| Priority date | — |
| Expiry date | Aug 27, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2225/09
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A barbell system having a center shaft with a first and second end, a first and second outer shaft, the ends telescopically received in an inner end of the outer shafts adjustable in length via a securing mechanism, retaining rings on outer ends of the outer shafts oriented in the same direction, each retaining ring having an outer ring, inner ring, a front and back surface which form an inner cavity, a track is in each inner ring extending through its entire circumference, a handle shaft having a first and second end which protrude through the track, a lip on both ends of the handle shaft to secure the ends within the inner cavity, bearings lining an internal surface of the inner ring and bearings lining an internal surface of each outer ring, and weight bearing shafts on the retaining rings opposite the outer shafts to removably engage a weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.