Overunning clutch spring
US4570318A · kind A · utility
6Cited by
8References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 12, 1984 |
| Grant date | Feb 18, 1986 |
| Priority date | — |
| Expiry date | Oct 12, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T409/303752
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Squared-ends are provided in an overrunning clutch spring by notching the end of the tube stock; cutting the endmost coil on a lead equal to the cutter diameter (D) so that it varies in thickness from W/2 at its end to 3W/2, where (W) is its desired thickness; and cutting subsequent coils on a lead equal to cutter diameter plus desired coil thickness; and compressing the spring. Notches (70, 72) resulting from the process are advantageously positioned for enhancing the centrifugal balance of the spring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.