Invention Grant
- Patent Title: Secure non-contact switch
- Patent Title (中): 安全非接触式开关
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Application No.: US12701497Application Date: 2010-02-05
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Publication No.: US08456792B2Publication Date: 2013-06-04
- Inventor: Andy Peczalski , Soumitri Kolavennu , Jeff Hall , Todd Hanson
- Applicant: Andy Peczalski , Soumitri Kolavennu , Jeff Hall , Todd Hanson
- Applicant Address: US NJ Morristown
- Assignee: Honeywell International Inc.
- Current Assignee: Honeywell International Inc.
- Current Assignee Address: US NJ Morristown
- Agency: Seager Tufte & Wickhem LLC.
- Main IPC: H01H47/00
- IPC: H01H47/00

Abstract:
A redundant non-contact switch reports a status as closed or open for a first member and a second member that move relative to each other between an open state and a closed state. In some embodiments, the redundant non-contact switch includes a wireless authentication (WA) pair and a magnetic pair. The WA pair may include a WA responder attached to one of the first member and the second member, and a WA interrogator attached to the other of the first member and the second member. The WA pair may be configured to register a WA status of closed or open, depending on a WA authentication between the WA responder and the WA interrogator. The magnetic pair may include a magnet attached to one of the first member and the second member, and a magnet sensor attached to the other of the first member and the second member. The magnetic pair may be configured to register a magnetic status of closed or open, depending on whether a magnet distance between the magnet and magnet sensor is beyond a threshold magnet distance. In some instances, the redundant non-contact switch reports the status as closed only if both the WA status is registered as closed and the magnetic status is registered as closed.
Public/Granted literature
- US20110193422A1 SECURE NON-CONTACT SWITCH Public/Granted day:2011-08-11
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