Patent · US Expired

Program timer control

US4521869A · kind A · utility

7Cited by
4References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 2, 1982
Grant dateJun 4, 1985
Priority date
Expiry dateApr 2, 2002

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG04G15/006
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A program timer control is disclosed for applying one of at least two functions to a parameter controller which is varied over the course of a full day. A day counter counts the passage of days and operates a switch to control the parameter controller according to the non-working day function when a weekend day occurs. A manually operable setting element is also provided when the following day is a holiday to select the non-working day function. All other days are assumed to be working days so that the switch is operated to apply the working day function to the parameter controller.

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