Patent · US Expired

Self-indicating thermostat

US4013218A · kind A · utility

8Cited by
1References
5Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJan 29, 1976
Grant dateMar 22, 1977
Priority date
Expiry dateJan 29, 1996

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF01P2031/00
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

A thermostatically responsive valve for controlling fluid, including a thermally responsive power member for operating the valve and indicator means movable to an operative position indicative of an overheat condition in response to high fluid temperatures. Latch means are provided to prevent movement of the indicator means into the overheat position during an overheat condition when activated by the thermally responsive power member, so that the responsibility of the thermostat can be determined by examination.

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