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US 2004/0090871 A1Published application
Timer
AssigneeFrance/Scott Fetzer Company
InventorsDaniel Keith Amonett, Robert G. Sokalski, Donald Eugene Smith
Life of this patent
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Abstract
A cam-operated timer for a household appliance features lanced switch arm contacts. A contacting surface of at least one switch arm includes a tear in the surface of the switch arm. Adjacent the tear, a first portion of the contact surface is deflected away from the surface of the switch arm in a first direction, whereby a sharp contact edge is created. The sharp contact edge permits the switch arms to make good contact with adjacent switch arms.
Claims7
A timer for controlling an appliance, comprising:
- a rotatable cam-carrying member having cam surfaces thereon,
- a timing motor having a rotor that rotates in response to electrical stimulation,
- a drive mechanism for causing rotation of said cam-carrying member in response to rotation of said rotor,
- a plurality of cam-actuated switches, each cam-actuated switch comprising first and second arms, at least one arm mounted for engagement to a cam surface of said rotatable member for actuation of said switch in response to rotation of said rotatable member, and making and breaking an electrical connection by contact between contacting surfaces of said arms in response to actuation by said rotatable member,
- wherein the contacting surface of at least one switch arm comprises a tear in the surface of the switch arm, and adjacent the tear a first portion of the contact surface is deflected away from the surface of the switch arm in a first direction, whereby a sharp contact edge is created.
2 more elements
Dependencies are inferred from the claim text.