Patent · US Expired

Timer

US6838628B2 · kind B2 · utility

3Cited by
79References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 17, 2003
Grant dateJan 4, 2005
Priority date
Expiry dateOct 17, 2023

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01H2043/107
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A cam-operated timer for a household appliance including a housing and a switch wafer mounting in the housing used to receive and locate the wafers to prevent inaccuracies in wafer thickness from accumulating through the stack of wafers. The switch wafer mounting includes first and second locating features for receiving first and second switch arm wafers. The first switch arm wafer rests against the first locating feature, and the second switch arm wafer is stacked atop the first switch arm wafer and rests against the second locating feature.

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