Patent · US Expired

Safety device

US4865249A · kind A · utility

10Cited by
3References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 28, 1987
Grant dateSep 12, 1989
Priority date
Expiry dateAug 28, 2007

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG05D23/1333
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

A safety device for an engine cooling system having a heater core circuit for circulating the engine cooling water through the heater core of an automotive air conditioning system, and a radiator circuit for circulating the engine cooling water through a radiator. The safety device comprises a safety valve provided in the heater core circuit and capable of discharging the engine cooling water outside the vehicle when the temperature of the engine cooling water exceeds a predetermined temperature and/or when the pressure of the engine cooling water exceeds a predetermined pressure.

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