Abdominal crunch exercise machine
US12390686B2 · kind B2 · utility
0Cited by
4References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 30, 2023 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Nov 5, 2043 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2208/0233
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An exercise machine, components of the exercise machine, and methods related to using the exercise machine that allow for a performance of an abdominal exercise which provides for a more natural rolling motion for a back of a user while providing variable resistance. Specifically, at least one of a seat or a backrest of the exercise machine, and preferably both, is not rotationally attached directly to a frame of the exercise machine, but is instead rotationally attached to a secondary arm of the exercise machine which is then rotationally attached to the frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.