Assignee
HAZEMEIJER BV
24 granted patents·238 citations·filing 1974–1984
Top patents by PatentIndex Score
24 records- 0179US4107496AVacuum switching apparatus with double interruption and including an interposed barrierHAZEMEIJER BV·Filed 1974·Granted Aug 15, 1978·32 cites·5 claims
- 0278US4354215ASelective safety device for the protection of a power distribution systemHAZEMEIJER BV·Filed 1980·Granted Oct 12, 1982·39 cites·6 claims
- 0375US4109123AVacuum switchHAZEMEIJER BV·Filed 1977·Granted Aug 22, 1978·16 cites·6 claims
- 0474US4115672AVacuum switch and electro-magnetic coil assembly thereforHAZEMEIJER BV·Filed 1977·Granted Sep 19, 1978·19 cites·4 claims
- 0564US4323590AMethod for improving switch contacts, in particular for vacuum switchesHAZEMEIJER BV·Filed 1980·Granted Apr 6, 1982·12 cites·5 claims
- 0661US4227596AContact deviceHAZEMEIJER BV·Filed 1978·Granted Oct 14, 1980·13 cites·7 claims
- 0755US4271340AElectrical vacuum switch having means for generating an axial magnetic field between the contact facesHAZEMEIJER BV·Filed 1978·Granted Jun 2, 1981·8 cites·7 claims
- 0854US4281231AHigh tension vacuum switchesHAZEMEIJER BV·Filed 1978·Granted Jul 28, 1981·11 cites·9 claims
- 0953US4074098AElectric arc extinction apparatusHAZEMEIJER BV·Filed 1976·Granted Feb 14, 1978·12 cites·13 claims
- 1052US4293813ACurrent measuring systemHAZEMEIJER BV·Filed 1979·Granted Oct 6, 1981·12 cites·7 claims
- 1151US4628393AMethod for switching in a three-phase high voltage circuitHAZEMEIJER BV·Filed 1982·Granted Dec 9, 1986·9 cites·2 claims
- 1248US4183598AContact device for the transmission of electric current between a stationary contact part and a movable contact partHAZEMEIJER BV·Filed 1978·Granted Jan 15, 1980·18 cites·10 claims
- 1346US4536735ACurrent limiting high voltage fuse assemblyHAZEMEIJER BV·Filed 1984·Granted Aug 20, 1985·6 cites·11 claims
- 1445US4331850AVacuum switch including a getter deviceHAZEMEIJER BV·Filed 1979·Granted May 25, 1982·5 cites·4 claims
- 1543US4172241AElectromagnetic actuation device comprising a magnetic holding mechanism, particularly for the actuation of high-speed circuit breakersHAZEMEIJER BV·Filed 1977·Granted Oct 23, 1979·5 cites·3 claims
- 1641US4436241AMetal-ceramic jointHAZEMEIJER BV·Filed 1982·Granted Mar 13, 1984·7 cites·7 claims
- 1735US4542364AEnd cap for an electric high voltage fuseHAZEMEIJER BV·Filed 1984·Granted Sep 17, 1985·3 cites·17 claims
- 1834US4562320ACurrent-limiting deviceHAZEMEIJER BV·Filed 1980·Granted Dec 31, 1985·3 cites·6 claims
- 1933US4585911ASpring charged operating device for switchHAZEMEIJER BV·Filed 1984·Granted Apr 29, 1986·3 cites·19 claims
- 2032US4109122AVacuum switch with intermittently energized electromagnetic coilHAZEMEIJER BV·Filed 1977·Granted Aug 22, 1978·3 cites·6 claims
- 2127US4527026ADevice for moving an element between two end positions by means of an energy bufferHAZEMEIJER BV·Filed 1983·Granted Jul 2, 1985·0 cites·6 claims
- 2226US4319210ACurrent limiting switch capable of rapid circuit breakingHAZEMEIJER BV·Filed 1980·Granted Mar 9, 1982·0 cites·7 claims
- 2313US4119820ASpring-drive mechanism for electric switchesHAZEMEIJER BV·Filed 1977·Granted Oct 10, 1978·0 cites·2 claims
- 2412US4590547AActive full-wave rectifier detector circuitHAZEMEIJER BV·Filed 1984·Granted May 20, 1986·2 cites·4 claims
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