Vibration dampener for coil tension window balance spring
US4540070A · kind A · utility
9Cited by
3References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1984 |
| Grant date | Sep 10, 1985 |
| Priority date | — |
| Expiry date | Jul 19, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S16/36
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Molded resin vibration dampener is mounted on coiled tension window balance springs arranged within spring covers. A resin wall of the vibration dampener, shaped for fitting around the tension spring, has a slot oriented longitudinally of the spring, and the wall is flexible enough to allow the slot to be spread open so that the body can be pressed onto a mid-region of the spring. Resilient fins extend obliquely outward from the body far enough to engage an interior surface of the spring cover and thereby hold the body and the spring spaced away from the spring cover to prevent rattling of the spring within the cover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.