Patent · US Expired

Electrical timer with setting window

US5715214A · kind A · utility

32Cited by
17References
22Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJul 3, 1996
Grant dateFeb 3, 1998
Priority date
Expiry dateJul 3, 2016

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01H43/065
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

An electrical timer having scales for setting switching times and time-of-day. A window exposes only a portion of one of the scales thereby helping a user to set the time-of-day of the timer. In one aspect, the window is located in a cover that hides all but a portion of the time-of-day scale. According to a further aspect, the switching-times scale and the time-of-day scale are located on a dial rotatably mounted on a timer housing that includes a suitable electrical plug, an electrical receptacle, and an electrical switch operable with the scales.

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