Over-center biasing spring for part circle gear driven rotary irrigation sprinklers
US5288023A · kind A · utility
11Cited by
16References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1991 |
| Grant date | Feb 22, 1994 |
| Priority date | — |
| Expiry date | Oct 21, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B3/0432
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An Omega type biasing spring for use in a part circle gear driven sprinkler of the type having a reversing gear train mounted on a pivotal yoke and operated by a lost motion trip mechanism, the omega spring having a bulbous-shaped arcuate head section interconnected with laterally diverging leg sections through a narrow neck section defining a lateral gap which closes upon spring compression to reduce internal spring stress.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.