Honeywell G.m.b.h.

Donald P Kolbow

Richard B Porter

John M Whitney

Kenny Truong

Gerald W Martin

An electrical switch assembly includes a snap action switch which is actuated from one to another conduction state by a snap action interface mechanism moved by an external actuation element between first and second corresponding positions. The snap action interface mechanism prevents the snap action switch from operating improperly when the external actuation element is of the type which provides a slowly moving, low actuation force. A preferred embodiment has as a part of the interface mechanism, a lever having a ferromagnetic portion which snaps between the first and second positions under the influence of at least one magnet. The switch assembly is particularly suitable for actuation by the bimetal coil strip which commonly forms the temperature responsive element in a thermostat.

Electrical switch having a two stage snap action interface for enhanced

A single bimetal automatic changeover thermostat has heating, cooling and changeover switches mounted to the bimetal. A single control point adjustment lever for rotating the bimetal has separate shaped heat and cool set point indicators which are movable along a temperature scale.

Automatic changeover thermostat with single bi-metal and common set

Thermostat

An adapter wall plate for mounting a replacement thermostat on a wall wherein the adapter wall plate attaches to the existing wall plate of the thermostat being replaced thereby eliminating the necessity of disconnecting the wires leading from the existing wall plate to the remote control apparatus.

Replacement thermostat adapter wall plate

Thermostat cover

A thermostat adapted for controlling heating and cooling apparatuses has a temperature control point adjustment means connected to a changeover switch means whereby upon the adjustment of the temperature control point adjustment means in a first range to select a cooling point, the changeover switch means only connects the thermostat to the cooling apparatus and when the temperature control point adjustment means is in the heating range, the changeover switch means only connects the thermostat to the heating apparatus. The limited range of temperature selection in the first and second range is an energy conservation feature of the thermostat.

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Bloomington, MN, United States of America

Donald P Kolbow