I-deal LLC

Ricardo Limeres

Edward Wojcik

Alfred Osborn

An improved self-biased vane structure normally buckled to an abnormal posture by a thermally expansible pull member comprises a piece of resilient sheet metal deformed downwardly relative to a horizontal reference plane between pairs of divergent creases which extend to opposite lateral edges of the piece from respective apex points spaced apart on the longitudinal center line thereof. The vane thus has a pair of triangular end panels between which there are oppositely sloped side or wing panels, and has a transversely, elastically bowed portion between the apex points. The bowed central portion may be creased longitudinally and/or formed with a central opening to give it selected buckling properties. The pull member extends centrally from end to end over the convex side of the vane; when it is heated, as by an electric current passing through it and the vane, the vane snaps toward its natural posture and brings the pull member into cooling contact with its central portion and its end panels.

Flasher switch vane structure

An electro-thermally activated liquid level sensor that functions reliably under widely varying conditions of ambient temperature and supply voltage makes use of an elongate bimetal element cantilevered at one end thereof in a heat conductive wall adapted to be contacted by the liquid and heated by an electrical resistance element, e.g. by a resistance wire wound about the bimetal element and grounded through it, so that the free end of the bimetal element will close cntacts for a signalling circuit when liquid is not contacting said wall and will open the contracts in response to the loss of heat through the fixed end when liquid is contacting said wall. The bimetal element is composed of oppositely oriented bimetal strip segments fixed one to an end of the other and proportioned with the windings of the resistance wire, so that the switching action of the free end is not voltage-dependent; i.e., it will persist in the absence of a heat sink at said wall irrespective of variations of current flow through the resistance element.

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Staten Island, NY, United States of America

Ricardo Limeres