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Class 340/397.4 - Having spring


Subclass of Class 340 - Communications: electrical
Definition: Subject matter wherein means for controlling the flow of
No. of patents: 1
Last issue date: 05/08/1979


NumberTitleIssue Date
4153898Audible alarm with laminated magnetic core
An electrically actuated audible alarm having a magnetic structure comprising an assembly of laminations is provided to reduce eddy current losses. With the reduction of eddy current losses, faster magnetic flux buildup is possible and an increased veloci... 		05/08/1979
 
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