Non-contact operating proximity switch
Patent 4757213 Issued on July 12, 1988. Estimated Expiration Date: 
May 15, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 15, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3454869 3818306 3860864 3863140 4090091 D.C. to D.C. Converter utilizing resonant inductor to neutralize capacitive losses Electric switches Electric proximity sensor Power supply system for automotive parts having a rotary component Initiator for a contactless switch InventorsAssigneeApplicationNo. 07/049936 filed on 05/15/1987US Classes:307/116, Condition responsive174/50, BOXES AND HOUSINGS174/520, With electrical device307/115, Selectively actuated361/179Proximity or contactExaminersPrimary: Shoop, William M. Jr.Assistant: Ip, Paul Attorney, Agent or FirmInternational ClassesH03K 17/95 (20060101)H03K 17/94 (20060101) Foreign Application Priority Data1986-05-15 DEAbstractA proximity switch operating on a non-contact basis including a terminal-side main part set in a base housing and a sensor part set in a probe. To enable a selection of the response direction, the probe may be adjusted in different positions on the base housing, to which the probe is designed or arranged as a component insulated on all sides which, by way of individual in-built core coils is inductively coupled with a core coil set in the base housing. | |
