Mechanism to restrain slamming of shovel dipper doors
US4063373A · kind A · utility
11Cited by
10References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 28, 1977 |
| Grant date | Dec 20, 1977 |
| Priority date | — |
| Expiry date | Jan 28, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/0894
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A mechanism to restrain slamming of shovel dipper doors including a pair of arms connected respectively to the back and door of a shovel dipper and pivotally interconnected together with a Belleville spring loading.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.