Therm-o-disc, Incorporated

Douglas P Versaw

Ronald L Holden

Max L Green

Brian W Engelbach

Theo De Geest

A one-piece casting for a water fountain bubbler having a cavity for a flow regulator cartridge, an inlet port, and inlet and outlet passages all integrally cast therein.

Bubbler

A manually resettable trip free thermostat that has simple construction and a pivotable stationary contact arm that enables the thermostat to be reset while maintaining the contacts in an open condition.

Trip free thermostat

A heat collector for thermostatic fire detectors comprises a one-piece circular metal member having a closed central depression that forms the bottom of a bimetal snap disc chamber in a thermostatic switch.

Heat collector

A sealed bimetal snap disc thermostat is disclosed which is suitable for use in environmental locations in which severe thermocycling occurs. The thermostat provides a disc cup having an imperforate end wall which is the only portion of the thermostat per se which is exposed. A non-metallic enclosure cup is formed with an aperture closely encircling the disc cup and which defines a cavity surrounding the remaining portions of the thermostat. A sealing compound, such as epoxy, fills such cavity. The disc cup is crimped onto the thermostat body and provides an extended portion which is spaced from the thermostat body so that the sealing adhesive provides an interface of substantial area with the metal disc cup to assure a continuing seal. Because the sealant and enclosure cup surround the entire thermostat except for the disc cup, the thermostat is thermally insulated from its environment except for the disc cup end face.

Sealed thermostat for use in defrost control systems

A detector thermostat for fire detection systems is disclosed. Such detector thermostat includes a bimetal snap disc thermostat having a metallic disc cup which supports the snap disc. A heat collector is mounted on the disc cup in good heat transfer relationship therewith. The collector provides a flange formed with concentric circular convolutions and a circular array of projections cut from the material of the flange and extending substantially perpendicular to the flange. The projections are positioned around the disc cup and provide improved sensitivity to the flow of hot air and gases in a direction parallel to the plane of the flange.

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Mansfield, OH, United States of America

Douglas P Versaw