Patent Number: 6,612,404

Title: Contactless hall effect push button switch

Abstract: A programmable switching device that employs a Hall Effect sensor and a moving magnet is disclosed. The Hall Effect sensor is electrically connected to a programmable microprocessor that is programmed to detect changes in Hall Effect voltages at the sensor. The programmable switching device may also be configured as a rotary switching device. By using a plurality of magnets and Hall Effect transducers and orienting some magnets with their polarities in different directions, a temper-proof switch can be achieved. The programmable switching device may be connected to a serial bus that is interfaced with an elevator controller.

Inventors: Sweet; Robert H. (Lakeside, CA), Nickerson; James A. (Santee, CA), Palazzola; Michael A. (San Diego, CA)

Assignee: Thyssen Elevator Capital Corp.

International Classification: H03K 17/94 (20060101); H03K 17/97 (20060101); H03K 17/95 (20060101); B66B 003/00 ()

Expiration Date: 09/02/2020