Adjustable weight lifting machine
US5135451A · kind A · utility
Inventor
Key dates
| Filing date | Aug 19, 1991 |
| Grant date | Aug 4, 1992 |
| Priority date | — |
| Expiry date | Aug 19, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B23/03525
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An adjustable weight lifting machine includes a bench board adjustably secured on a bench frame by adjustably engaging a locking bolt pivotally secured with the bench board with a corresponding pair of bolt holes formed in the bench frame adapted for a proper seating or sleeping by a trainee or user on the bench board, and a plurality of weights slidably held on two guiding rods having a pair of reinforcing ribs, each rib securing each rod to a supporting column of the machine having each weight formed with two side notches in two opposite side portions of the weight so as to be freely reciprocated on the guiding rods without being obstructed by the two reinforcing ribs secured on the rods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.