Emerson Electric Company

Lloyd C Worley

Daniel K Amonett

A timer for controlling an appliance includes a top subinterval circuit which is used to control an appliance function. The top subinterval circuit has electrical circuit blades which are movable to open and to close the top subinterval circuit. The timer also includes a subinterval lever which contacts a subinterval cam. The subinterval lever is movable in response to the subinterval cam to impart motion to the circuit blades. This movement acts to open and to close the top subinterval circuit. Moreover, the timer includes a masking lever that engages the circuit blades to prevent the closing of the top subinterval circuit. Thereby the motion of the subinterval lever is masked.

Appliance timer having a maskable double throw subinterval mechanism

An appliance timer includes a cam member and a first coupler attached to the cam member, the first coupler having a structure with a notch defined therein, wherein the structure defines a substantially cylindrical member having a void defined therein. The appliance timer also includes a knob shaft and a second coupler attached to the knob shaft and positioned within the void, wherein (1) the second coupler includes a body and a tab, (2) the tab is movable in relation to the body, (3) the body is fixed in relation to the knob shaft, and (4) the tab is positionable within the notch.

Appliance timer having coupling mechanism that prevents camstack from

An appliance timer has features to facilitate automated assembly or manual assembly. A timer housing base accepts timer components from two directions, and installation of components in either direction is along a straight axis. A motor in the timer engages a gear train which runs a drive cam. The drive cam imparts motion to a camstack which then engages timer blade switches, and the blade switches operate the appliance. A subinterval is also supplied on the timer to allow periodic operation of a switch without the use of the camstack. The timer also features a quiet manual advance which removes the blade switches from communication with the camstack to allow an operator to select various timer programs without any of the clicking noises that are usually associated with timer program selection. Furthermore, a detent slider is positioned in communication with the camstack to provide a tactile feel for the operator of the timer when selecting between various timer programs.

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Hendricks County, IN, United States of America

Lloyd C Worley