Coil spring with ends adapted for coupling without welding
US5503375A · kind A · utility
45Cited by
23References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 9, 1994 |
| Grant date | Apr 2, 1996 |
| Priority date | — |
| Expiry date | Nov 9, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S277/92
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Spring apparatus is provided which includes coil springs having intermediate and end coils suitable for interconnection in order to form a continuous spring which maintains a constant load-deflection characteristic over all intermediate coils unaffected by the joint end coils. This configuration therefore finds particular utility in providing bias without compromise of sealing, electromagnetic shielding and/or conductivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.