NL7711968A - SAFETY CIRCUIT FOR CONSTANT SPEED ELECTRIC MOTOR DRIVEN SHUT-OFF DEVICE SUCH AS A WINDOW, A DOOR, A VALVE ETC. - Google Patents

SAFETY CIRCUIT FOR CONSTANT SPEED ELECTRIC MOTOR DRIVEN SHUT-OFF DEVICE SUCH AS A WINDOW, A DOOR, A VALVE ETC.

Info

Publication number
NL7711968A
NL7711968A NL7711968A NL7711968A NL7711968A NL 7711968 A NL7711968 A NL 7711968A NL 7711968 A NL7711968 A NL 7711968A NL 7711968 A NL7711968 A NL 7711968A NL 7711968 A NL7711968 A NL 7711968A
Authority
NL
Netherlands
Prior art keywords
door
window
electric motor
constant speed
motor driven
Prior art date
Application number
NL7711968A
Other languages
Dutch (nl)
Original Assignee
Antonius Franciscus Huitink
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Antonius Franciscus Huitink filed Critical Antonius Franciscus Huitink
Priority to NL7711968A priority Critical patent/NL7711968A/en
Priority to GB2157878A priority patent/GB1604266A/en
Publication of NL7711968A publication Critical patent/NL7711968A/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
    • H02H7/0851—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load for motors actuating a movable member between two end positions, e.g. detecting an end position or obstruction by overload signal
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
    • H02H7/0853—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load specially adapted for motors rotating in both directions
NL7711968A 1977-10-31 1977-10-31 SAFETY CIRCUIT FOR CONSTANT SPEED ELECTRIC MOTOR DRIVEN SHUT-OFF DEVICE SUCH AS A WINDOW, A DOOR, A VALVE ETC. NL7711968A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NL7711968A NL7711968A (en) 1977-10-31 1977-10-31 SAFETY CIRCUIT FOR CONSTANT SPEED ELECTRIC MOTOR DRIVEN SHUT-OFF DEVICE SUCH AS A WINDOW, A DOOR, A VALVE ETC.
GB2157878A GB1604266A (en) 1977-10-31 1978-05-23 Safety circuit for closure member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7711968A NL7711968A (en) 1977-10-31 1977-10-31 SAFETY CIRCUIT FOR CONSTANT SPEED ELECTRIC MOTOR DRIVEN SHUT-OFF DEVICE SUCH AS A WINDOW, A DOOR, A VALVE ETC.

Publications (1)

Publication Number Publication Date
NL7711968A true NL7711968A (en) 1979-05-02

Family

ID=19829444

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7711968A NL7711968A (en) 1977-10-31 1977-10-31 SAFETY CIRCUIT FOR CONSTANT SPEED ELECTRIC MOTOR DRIVEN SHUT-OFF DEVICE SUCH AS A WINDOW, A DOOR, A VALVE ETC.

Country Status (2)

Country Link
GB (1) GB1604266A (en)
NL (1) NL7711968A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA847740B (en) * 1983-10-12 1985-05-29 Byrne & Davidson Ind Ltd Obstruction detection means
CA1251843A (en) * 1984-11-26 1989-03-28 Raymond L. Seidel Door or gate obstruction control
DE8904581U1 (en) * 1989-04-12 1989-05-24 EUBA-Antriebstechnik Eller GmbH, 4300 Essen Engine monitoring switch
GB2269282A (en) * 1992-07-29 1994-02-02 Gen Electric Co Plc Controlling movement by electric motor using current monitoring
US5467808A (en) * 1993-01-14 1995-11-21 Eclipse Blinds Limited Blind or curtain suspension system
GB2286906B (en) * 1994-02-28 1998-11-18 Ohi Seisakusho Co Ltd Drive control device for opening/closing member

Also Published As

Publication number Publication date
GB1604266A (en) 1981-12-09

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Legal Events

Date Code Title Description
A1B A search report has been drawn up
BC A request for examination has been filed
BN A decision not to publish the application has become irrevocable