The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 21, 2017

Filed:

Dec. 04, 2013
Applicant:

Johnson Electric S.a., Murten, CH;

Inventor:

Martin Wallace Edmonds, East Cowes, GB;

Assignee:

JOHNSON ELECTRIC S.A., Murten, CH;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B 13/18 (2006.01); G08B 13/12 (2006.01); G07F 7/08 (2006.01);
U.S. Cl.
CPC ...
G08B 13/128 (2013.01); G07F 7/0873 (2013.01);
Abstract

A tampering resistant device has housing, a circuit board fitted with electronic components, and a key pad for command input. A security wrap is disposed between the circuit board and the key pad. The security wrap has a substrate and a security screen formed thereon and connected to a first alarm. The security screen has a conductive trace extending over the substrate between a pair of screen terminals that are electrically connected to respective alarm terminals. An alarm switch is located between the substrate and the circuit board and connected to a second alarm. The alarm switch is held closed by a spigot pressing on the alarm switch through the substrate. The spigot extends from the housing and releases the alarm switch when the housing is opened.


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