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Class 340/535 - Mechanical code means (e.g., coded disc)


Subclass of Class 340 - Communications: electrical
Definition: Subject matter having a switching device actuated by a mechanical
No. of patents: 11
Last issue date: 07/18/2006


NumberTitleIssue Date
7079022Emergency activation apparatus for a technical device
A safety device is provided that can be connected with a technical device and an associated emergency activation apparatus. The safety device includes a rail. The rail and emergency activation apparatus are fashioned such that the emergency activation apparatus can ...
07/18/2006
6590952Reactor manual control system
In a boiling water reactor controlling each control rod hydraulically by driving a solenoid valve, the control system comprises an operation control means 41 having a duplicated data processing unit for generating sequence patterns based on the timing of ...
07/08/2003
6545602Fire alarm system
A fire alarm system provided with a fire receiver (1) to which a plurality of fire sensors and controlled apparatuses are connected. The fire receiver (1) comprises a LAN interface (11) for connecting with other fire receivers. When a fire sensor issues a...
04/08/2003
6452490Home/commercial security monitoring system
A method and apparatus for communicating between Customer Premises Equipment, (CPE) alarm sensing devices, and alarm monitoring stations. The sensing devices communicate with an end office switch by transmitting a message, such as a string of Dual-Tone Mu...
09/17/2002
6313744Alarm system with individual alarm indicator testing
A building alarm system includes addressable notification appliances connected to a system controller, with each notification appliance having a status indicator and an alarm indicator. The status indicator, such as an LED, provides for system test modes ...
11/06/2001
6118374Process and device for the recognition of screws used in extruders or metering devices
The invention concerns a process and a device for the recognition of screws used in extruders or metering devices. In order to create a process that excludes the possibility that mixtures of granulates or powders with incorrect mixing ratios occur through...
09/12/2000
5818334Addressable devices with interface modules having electrically readable addresses
In a communication system such as a fire detection system, individual addressable devices determine their addresses from address interface modules at the device locations. An interface module includes wire connectors for receiving system wires and a devic...
10/06/1998
4988977Address setting means for fire detectors
A fire detector assembly comprises a base (1) and a sensor (5) adapted to fit the base. The base (1) is provided with passive means, such as pins (6) or contacts arranged in a pattern to represent an address of the detector. When the sensor (5) is fitted ...
01/29/1991
4804754Preparation of caprolactam from cyclohexanone oxime by Beckmann rearrangement
Caprolactam is prepared in a process comprising (a) a Beckmann rearrangement of cyclohexanone oxime with oleum at from 70° to 130° C. in one or more rearrangement stages, and (b) aftertreatment of the reaction mixture obtained from the rearrangement stage in...
02/14/1989
4271405Alarm control system
In an alarm control system for protecting a premises, a four conductor bus line leading from a master control station is extended about the interior perimeter of the premises. Sensors positioned near each port of entry to be monitored are connected in par...
06/02/1981
3982242McCulloh receiver
A receiver is disclosed connected to a McCulloh loop, having an N or line side and a G or ground side, for receiving coded alarm signals from a plurality of McCulloh transmitters. The receiver is especially adapted for supplying the alarm signals to a com...
09/21/1976
 
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