Selective > Monitoring in addition to control (e.g., supervisory) > Synchronization > Electromechanical (e.g., relay, rotary distributor) > Patents

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Class Information
Number: 340/3.22
Name: Communications: electrical > Selective > Monitoring in addition to control (e.g., supervisory) > Synchronization > Electromechanical (e.g., relay, rotary distributor)
Description: Subject matter wherein the reference timing function includes a mechanical movable element responsive to electrical input such as a relay or rotary distributor.

Sub-classes under this class:

Class Number	Class Name	Patents
340/3.23	Relay chain	0
340/3.24	Step-by-step	0

Patents under this class:

Patent Number	Title Of Patent	Date Issued
7446670	Load terminal for use in a remote controlled load management system	Nov. 4, 2008
7332996	Connections for a cell site environmental control system	Feb. 19, 2008
7187296	Miniature fault indicator	Mar. 6, 2007
6937134	Reception of protection commands in a remote tripping device	Aug. 30, 2005
6901066	Wireless control network with scheduled time slots	May. 31, 2005
6812836	Alarm system armed and disarmed by a door contact	Nov. 2, 2004
6331822	Communication control apparatus	Dec. 18, 2001
5027297	System for time stamping events using a remote master clock	Jun. 25, 1991