Robertshaw Controls Company

Other

Robertshaw Controls Corp.

Douglas W Ray

David D Martin

Gregory Barnes

Jon Skekloff

A novel shape memory alloy electrical switch is disclosed, including both momentary and especially a latching relay. The switch/relay disclosed is particularly useful in low power control of appliances, including i.a. refrigerators. Used with a microprocessor, microcontroller, or like device to control the shape memory alloy switch/relay, an adaptive control routine may be included which facilitates an especially low-power dissipation, highly effective appliance control module, especially suitable for refrigerators. The disclosed refrigerator control module can be manufactured at low cost with high reliability.

Switch and relay using shape memory alloy

Adaptive appliance control module including switching relay

Adaptive control module using shape memory alloy

Control module using shape memory alloy

A fluid control assembly that includes fluid valving, fluid regulation, automatic safety shut-off valving and manual shut-off valving in one assembly, a novel fluid control unit that integrates the above functions in one unit, and a novel ignitor and a novel seal and diaphragm for use in the assembly.

Fluid control assembly

A novel valving assembly that provides redundant control, eliminates separate gasketing, and assures proper valve seating, which includes a dual valve disk construction having a laterally extending integral web membrane.

Valving assembly

Growing community of inventors

Irwin, PA, United States of America

Douglas W Ray