Patent · US Expired

Planar heater for liquid crystal element

US4724304A · kind A · utility

6Cited by
6References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 5, 1985
Grant dateFeb 9, 1988
Priority date
Expiry dateDec 5, 2005

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH05B3/84
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A planer heater includes a thin metal plate having a relatively high specific resistance such as stainless, nichrome, nickel-chrome iron alloy, etc. The thin metal plate is subjected to etching-working to form a mesh-like heat generating body, opposite ends of which are provided with terminal portions for connection into an electrical circuit.

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