Adjustable cushioned tow bar for power and free conveyor
US5632206A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1995 |
| Grant date | May 27, 1997 |
| Priority date | — |
| Expiry date | Jul 14, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61B10/022
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A cushioned tow bar for connecting a drive trolley to a load carriage in a power and free conveyor system includes a particulate shock absorber with a damping chamber which is partially filled with particulate material, such as small ball bearings, which act to dampen the movement of a piston through the damping chamber. The damping chamber comprises a portion of a sleeve which includes a threaded end cap which mates with threads on an open end of the sleeve. The threads in the sleeve extend along the longitudinal axis of the sleeve to an extent which allows the end cap to be threadably adjusted, changing the portion of the sleeve forming the damping chamber, and thus adjusting the cushioning effect of the tow bar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.