Front loader vehicle for loading aircraft
US4184802A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 1977 |
| Grant date | Jan 22, 1980 |
| Priority date | — |
| Expiry date | Nov 25, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60P1/483
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A truck vehicle carried boom and hopper system for lifting, transporting, and depositing a load of particulate material such as powder, granules or seeds into storage bins in material dispensing aicraft, including a hopper boom framework having spaced apart side bars pivotally mounted on the side bars on the front end of the vehicle mounted support structure. An extensible piston-cylinder hydraulic motor system is utilized to obtain various pivotal positions of the hopper boom. A manual hopper control valve is located in the bottom of the hopper, the hopper is pivotally mounted on a horizontal axis on the extended end of the boom and a safety bar is secured to a mid-portion of the boom to enable a safety block when the boom is in the aircraft loading position. Between the boom pivotal mounting on the truck frame and the truck frame is a trussed frame support construction which enables rigid pivotal support of the boom and hopper. An auxiliary hydraulic control cylinder is connected in an extensible brace link to the pivoted hopper to control its tilt position relative to the ground in whichever position the boom is placed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.