Swinging seat with spring suspension
US6623368B1 · kind B1 · utility
2Cited by
15References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 12, 2000 |
| Grant date | Sep 23, 2003 |
| Priority date | — |
| Expiry date | May 12, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F15/067
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A swinging seat includes suspension members having coil springs of nonlinear response so that the seat has a desirable bouncy feel for a wide range of weights supported on the seat. The springs in one embodiment are barrel shaped having coils of maximum diameter at the middle and coils of minimum diameter at the opposite ends of the spring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.