Adjustable force producing means for manually movable control le

Details Adjustable force producing means for manually movable control le Adjustable force producing means for manually movable control le

1979-11-13

1981-11-17

Beha, Jr., William H.

Electricity: electrothermally or thermally actuated switches

Thermally actuated switches

With bimetallic element

337360, 411147, H01H 3712

Patent

active

043014380

ABSTRACT:
In a space thermostat having a control lever for setting the temperature set-point, a force producing means clamps the control lever to the thermostat casing through an elongated slot in the casing. A hollow, rigid thin-walled nut, a compressible anchor ring, and a screw cooperate to provide means for adjusting the value of the clamping force to a value which enables manual movement of the control lever, upon application thereto of a desired force, to a different temperature set-point. The clamping force is further adjustable to a value which prevents manual movement of the control lever when it is desired to provide a locked condition wherein the control lever cannot be manually moved.

REFERENCES:
patent: 952507 (1910-03-01), Burns
patent: 2596657 (1952-05-01), Crum
patent: 2761349 (1956-09-01), Heller
patent: 2928445 (1960-03-01), Van Buren
patent: 3807254 (1974-04-01), Brakebill

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