Driveway truck restraining apparatus
US4818170A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1987 |
| Grant date | Apr 4, 1989 |
| Priority date | — |
| Expiry date | Feb 24, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G69/003
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A driveway truck restraining apparatus including a sealed casing embedded partially in the ground, a ram mounted in the casing for movement between a storage position and an operative position blocking the travel of the ICC bar located on the back of a truck, a pneumatic piston and cylinder assembly mounted on the loading dock and being operatively connected to the ram, and an indoor signal assembly mounted on the inside of the loading dock and an outdoor signal assembly mounted on the outside of the loading dock, the signal assemblies being electrically connected to the piston and cylinder assembly to provide control signals indicating the position of the ram and the absence or presence of a truck at the loading dock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.