Boom arm with rock deflection feature
US4439089A · kind A · utility
12Cited by
10References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 1981 |
| Grant date | Mar 27, 1984 |
| Priority date | — |
| Expiry date | Jun 3, 2001 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F3/80
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A loader vehicle boom arm assembly incorporates a pair of box section boom arms in which the top plate of each box section boom arm has a cross sectional shape such that the upper surface is provided with an arcuate surface that directs foreign objects encountering the arcuate top surface off the boom arm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.