Patent · US Expired

Laminar electrical heaters

US4517449A · kind A · utility

10Cited by
11References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 11, 1983
Grant dateMay 14, 1985
Priority date
Expiry dateMay 11, 2003

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S174/08
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

Laminar heaters comprise a laminar heating element sandwiched between two laminar electrodes having substantial electrical resistance along the thickness thereof. The heater has a heating area of irregular shape, and at least one of the electrodes extends over a connection area in which heat is not generated but which provides a shorter and/or more uniform current path to the heat-generating parts of the heater.

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