Vacuum loading machine
US4922571A · kind A · utility
24Cited by
10References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 14, 1988 |
| Grant date | May 8, 1990 |
| Priority date | — |
| Expiry date | Nov 14, 2008 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03F7/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A mobile vacuum loading machine has a swivel assembly permitting the boom to be rotated 360.degree. through the use of internal hydraulic and pneumatic passages in the swivel assembly. The hose reel is mounted on the rear of the machine and capable of being swung out outwardly a full 180.degree. and fixedly held at any position through the use of a linkage assembly attached to a hydraulic cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.