Patent · US Expired

Tractor-trailer brake system including a trailer brake control valve

US4616881A · kind A · utility

39Cited by

12References

9Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Egbert Muller · Langen (Hessen), DE
Ingolf Grauel · Lambach, DE
Werner Stumpe · Kornwestheim, DE

Key dates

Filing date	Nov 7, 1984
Grant date	Oct 14, 1986
Priority date	—
Expiry date	Nov 7, 2004

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60T17/18
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A tractor-trailer braking system with a control valve for the trailer which is controllable by at least two service brake circuits of the tractor. One circuit of this multi-circuit control has an electrical control in the form of magnetic valves, or the like, in order to speed up the control process. The system may be combined with a load-dependent switching element and/or with an anti-skid protection-dependent switching element.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.