Security system for wheeled vehicles residing on a moving deck
US5173018A · kind A · utility
Inventors
Key dates
| Filing date | Mar 12, 1991 |
| Grant date | Dec 22, 1992 |
| Priority date | — |
| Expiry date | Mar 12, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63B25/20
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An improved wheel clamp 1 including a first wheel chock (25) and a second wheel chock (29), interconnected by a first threaded rod (44) and a second threaded rod (46), the threaded rods being driven by a motor (43) driving chains (45, 47) such that rotation of the threaded rods urge the wheel chocks (25, 29) away from each other and into an abutting relationship with vehicle tires (11, 12). A pair of hold down clamps (33, 38) reside in a pivotable relationship adjacent to the wheel chocks (25, 29) and rotate upward to grip an inner surface of the tires (11, 12) as the wheel chocks engage the tires.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.