Patent · US Expired

Program plate for a timer

US4509864A · kind A · utility

4Cited by
4References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 10, 1984
Grant dateApr 9, 1985
Priority date
Expiry dateJul 10, 2004

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG04F3/00
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A program plate for a timer with setting means preferably arranged about the circumference of the program plate for the determination of a switching program, wherein the program plate is rotatably connected with a clockwork drive mechanism for operation of the program plate. An additional time display is operable through a further drive mechanism, which evidences a higher timewise resolution than the program plate, and which is integrated into the program plate. Within the circumferential surface area of the program plate, there is rotatably supported a preferably centrally positioned display disc for the higher resolved or defined time display, in which the further drive is supported within the program plate, and wherein the display disc is actuated by the further drive by means of the differential speed between the program plate and a housing component of the clockwork mechanism.

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