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Gerard Koehler
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Ville d'Avray, FR
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Patents Grants
last 30 patents
Information
Patent Grant
Dynamoelectric machine composed of sectors having transverse fluxes
Patent number
5,543,674
Issue date
Aug 6, 1996
Radio Energie
Gerard Koehler
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Direct current electromagnet having a movement of translation
Patent number
4,692,729
Issue date
Sep 8, 1987
La Telemecanique Electrique
Gerard Koehler
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Polarized electromagnet having three states and a control circuit f...
Patent number
4,609,899
Issue date
Sep 2, 1986
La Telemecanique Electrique
Gerard Koehler
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Electromagnet comprised of yokes and an armature supporting a perma...
Patent number
4,604,599
Issue date
Aug 5, 1986
La Telemecanique Electrique
Gerard Koehler
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Polarized electromagnetic relay with a single-break switch
Patent number
4,599,589
Issue date
Jul 8, 1986
La Telemecanique Electrique
Gerard Koehler
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Stepping motor of hybrid multi-phase type and device for its control
Patent number
4,595,871
Issue date
Jun 17, 1986
La Telemecanique Electrique
Gerard Koehler
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Bistable electromagnet with several armatures comprising a permanen...
Patent number
4,556,858
Issue date
Dec 3, 1985
La Telemecanique Electrique
Gerard Koehler
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Electromagnet equipped with a moving system including a permanent m...
Patent number
4,451,808
Issue date
May 29, 1984
La Telemecanique Electrique
Gerard Koehler
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Electromagnetic relay having a pivoted armature fitted with a perma...
Patent number
4,367,447
Issue date
Jan 4, 1983
Ets Bernier & Cie
Gerard Koehler
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Electromagnet with a moving system and permanent magnet, especially...
Patent number
4,316,167
Issue date
Feb 16, 1982
La Telemecanique Electrique
Gerard N. Koehler
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Multiple magnetic flywheel driven by a centrifugal clutch
Patent number
4,303,843
Issue date
Dec 1, 1981
Societe Chauvin Arnoux
Daniel Arnoux
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Electromagnetic relay with double-breaking contacts
Patent number
4,216,452
Issue date
Aug 5, 1980
Societe Chauvin Arnoux
Daniel Arnoux
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Electromagnet magnetic circuit with permanent-magnet armature
Patent number
4,191,937
Issue date
Mar 4, 1980
Manufacture Francaise d'Appareils Electriques de Mesure
Gerard Koehler
H01 - BASIC ELECTRIC ELEMENTS