Patents
Sitemap › H01 - Basic electric elements › H01T - Spark gaps; Overvoltage arresters using spark gaps; Sparking plugs; Corona devices; Generating ions to be introduced into non-enclosed gases › H01T 4 - Overvoltage arresters using spark gaps
Patents for H01T 4 - Overvoltage arresters using spark gaps (2,976)
01/1992
01/01/1992CN1015286B Anti-thunderstruck device for distribution transformer
12/1991
12/11/1991EP0460223A1 Board for surge absorbing device of communication line
12/04/1991EP0459727A1 Lightning arrestor system
11/1991
11/01/1991CA2018382A1 Surge protection assembly for insulating flanges
10/1991
10/29/1991US5061877 Discharge tube capable of stable voltage discharge
10/10/1991DE4010909A1 Cold-emission protection diode - has air-isolated electrodes with micrometric separation to prevent electrical discharge
09/1991
09/24/1991CA1289615C Power spark gap assembly for high current conduction with improved sparkover level control
09/19/1991WO1991014304A1 Electrical protection apparatus
09/18/1991EP0446433A2 Protection assembly for a distributor in a telecommunication network
09/17/1991US5050033 Back-up surge arresters
09/17/1991US5050032 Sealed envelope based on a filamentary winding, and application to a composite lightning arrester
09/09/1991CA2035526A1 Surge voltage absorbing apparatus
09/04/1991EP0445054A1 Lightning arrestor device for the protection of electric lines
09/03/1991CA2037115A1 Lightning arrester for the protection of electric lines
08/1991
08/29/1991DE4005942A1 Overvoltage protection plug for separation strips - has formed carrier plate with recesses for location of components
08/21/1991CN2083350U Valve arrester
08/20/1991CA1287871C Gas discharge arrester
08/20/1991CA1287868C Electrical distribution apparatus having draw-out surge arrester
08/14/1991EP0440905A2 Overvoltage arrester
08/01/1991DE4003894C1 Mains distributing socket strip with overvoltage protector - is provided with manually switchable electroacoustic signal generating transducer for optical functional control
07/1991
07/30/1991US5036420 Surge absorber
07/23/1991US5034846 Plug protector
07/17/1991EP0436529A1 Gas discharge surge absorber.
07/11/1991DE4042237A1 Plug-in voltage overload conductor - is formed with varistor elements coupled together in housing
07/09/1991US5031067 Five pin protector module for telephone circuits
07/02/1991US5029041 Electrostatic discharge protection for a printed circuit board
06/1991
06/28/1991WO1991010291A1 Board for surge absorbing device of communication line
06/28/1991CA2045670A1 Circuit board for surge absorber for communication lines
06/18/1991US5025345 Overload protector module and building entry protector with integrally molded modular jack
06/12/1991CN2078936U Damaged self-falling out arrester
05/1991
05/16/1991WO1991006999A1 Protector module for laminar type telephone blocks
04/1991
04/16/1991US5008772 Telephone circuit protector module having plural circuit grounding means
04/12/1991CA2027288A1 Series gapped metal oxide surge arrester
04/10/1991CN2074941U Thunder-proof safety device for communication and signal
04/09/1991CA1282828C Lightning arrester monitor
03/1991
03/29/1991WO1991005392A1 Solid state telephone protector module
02/1991
02/20/1991CN2071831U Double inverted umbrella type lightning arrester
01/1991
01/30/1991EP0410140A1 Protector connector for distribution panel of a telecommunication equipment
01/24/1991DE3921226C1 Mfg. protective plug for telephone exchange distributor - providing row of fuses and overvoltage diverters in chambers along flat, long side of plug
01/22/1991US4987511 Gapped arrester
01/10/1991DE3921227A1 Telecommunication distributor arrangement with elongated moulding - allows protection by single plug or separate plugs with spring fingers contacting common earth conductor
01/10/1991DE3921203A1 Protective plug for distributor moulding of telecommunication exchange - has pairs of earth contacts gripping central member of each set of three coplanar contact pins
01/02/1991EP0406099A1 Alternating current power line insulator with a protective spark arrester
12/1990
12/26/1990CN1048120A Lightning preventing device for distribution transformer
12/25/1990US4980909 Protector module for laminar type telephone blocks
12/25/1990US4980789 Two-stage gapped surge arrester
12/13/1990WO1990015463A1 An overload protector for telecommunications systems
12/13/1990DE3918651A1 Modular overvoltage protection device - has unitary protection devices with connectors loose in box with holes for line connection
12/06/1990DE3917921A1 Overvoltage protector for telecommunications installation - has plug-in housing contg. protective shunts and fusible disc to ensure positive symmetrical earthing of subscriber pair
11/1990
11/27/1990US4973378 Method of making electronic devices
11/20/1990CA1276675C Network resistor unit
11/14/1990EP0397163A1 Wound hermetic filamentary envelope and surge arrester assembly using same
11/08/1990DE3914624A1 Arcing unit for overload protection - has two part arc paths in series to provide protection
11/06/1990US4968382 Forming very sharp emitter points for field emission devices
10/1990
10/30/1990US4967303 Surge suppression system for submersible electrical motors
10/24/1990CN1010150B Lightning conductor
10/03/1990EP0389843A1 Security device for a distributor in a telecommunication system
10/02/1990US4960385 Cathode-ray tube socket
09/1990
09/30/1990CA2013568A1 Five pin protector module for telephone circuits
09/26/1990CN1045664A Flash barrier operating through wire insulator
09/20/1990WO1990010965A1 Fast foldback switching device
09/20/1990DE3907199A1 Overvoltage protection apparatus for coaxial cables
09/19/1990EP0387865A1 Spark protection device for insulated conductors, particularly for air lines
09/19/1990CN2062506U Lightning arrester
09/18/1990US4958254 Five pin protector module for telephone circuits
09/18/1990US4958253 Line protector for a communications circuit
09/05/1990EP0385764A1 Method of making electron emission devices
09/05/1990CN1045201A Safety devices and overload protection circuits
08/1990
08/30/1990DE3910435A1 Overvoltage protection device
08/29/1990EP0384347A1 Surge protector for connection arrangement, particularly of a telephone equipment
08/23/1990DE3905427A1 Overvoltage protection for the connection of data lines
08/22/1990CN2060952U Interference-resisting lightning arrestors for television receivers
08/15/1990CN2060601U Bottle holder type arrester
07/1990
07/25/1990EP0379298A2 Method of forming an electrode for an electron emitting device
07/25/1990EP0379297A2 Electronic devices
07/25/1990EP0378963A1 Spark gap element for shielded mounting
07/24/1990US4944003 Solid state telephone protector module
07/19/1990DE3921225C1 Protective device for distributor in telecommunications system - has over-voltage arrester with wire-type terminal pins, e.g. for telephone exchange
07/18/1990EP0242688B1 Surge arrester
07/17/1990US4942495 Electrostatic protection device for electronic cards
06/1990
06/19/1990CA1270553A1 Telephone line protector with line disconnect and an entrance terminal assembly incorporating a plurality of protectors
05/1990
05/23/1990CN1042455A Gas lightning arrester contg. mineral addition agent
05/10/1990DE3837571A1 Torpedo and use of the torpedo
05/08/1990US4924347 Gas lightning arrester containing a mineral addition agent
05/08/1990US4924346 Gas discharge surge suppressor for a telephone line
05/08/1990US4924345 Combined transient voltage and sneak current protector
05/02/1990CN1041845A Anti-thunderstruck device for distribution transformer
05/01/1990US4922374 Lightning protector assembly
04/1990
04/19/1990DE3835921A1 Overvoltage suppressor having a spark gap in air
04/19/1990DE3834687A1 Arrangement for the optional connection of electrical cables
04/18/1990EP0363606A1 CRT socket
04/05/1990WO1990003677A1 Gas discharge surge absorber
04/04/1990EP0361051A2 CRT socket
04/03/1990US4913663 Combined transient voltage and sneak current protector
03/1990
03/29/1990DE3831935A1 Overvoltage protection
03/15/1990DE3829650A1 Combined extinguishing spark gap
03/13/1990US4908730 Surge arrester with shunt gap
03/13/1990US4908729 Lightning arrester monitor
03/06/1990US4907120 Line protector for a communications circuit
03/01/1990DE3837051C1 Overvoltage protection plug for a plurality of cables which are to be protected against overvoltages
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