Trailer connection selector
US8123306B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 30, 2008 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Sep 12, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T13/662
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A truck includes a pressurized air supply system for providing air to one of a plurality of air supply connections and a selector circuit for providing selection to one of the air supply connections. The circuit includes a first inversion valve with supply from a selector valve and control from a parking brake valve, a second inversion valve with supply from the parking brake valve and delivery to a first air supply connection, a synchro valve with supply from the parking brake valve and delivery to a second air supply connection, a double check valve with supply from the first inversion valve and the synchro valve and delivery to a control line of the second inversion valve and the synchro valve, a first trailer supply connection to the delivery line of the second inversion valve, and a second trailer supply connection to the delivery line of the synchro valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.