IT1172284B - Perfezionamento negli interruttori elettrici - Google Patents

Perfezionamento negli interruttori elettrici

Info

Publication number
IT1172284B
IT1172284B IT48632/83A IT4863283A IT1172284B IT 1172284 B IT1172284 B IT 1172284B IT 48632/83 A IT48632/83 A IT 48632/83A IT 4863283 A IT4863283 A IT 4863283A IT 1172284 B IT1172284 B IT 1172284B
Authority
IT
Italy
Prior art keywords
improvement
electric switches
switches
electric
Prior art date
Application number
IT48632/83A
Other languages
English (en)
Other versions
IT8348632A0 (it
Inventor
R J Reid
Original Assignee
Kac Alarm Co Ltd
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 Kac Alarm Co Ltd filed Critical Kac Alarm Co Ltd
Publication of IT8348632A0 publication Critical patent/IT8348632A0/it
Application granted granted Critical
Publication of IT1172284B publication Critical patent/IT1172284B/it

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/74—Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/022—Emergency operating parts, e.g. for stop-switch in dangerous conditions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/022—Emergency operating parts, e.g. for stop-switch in dangerous conditions
    • H01H2003/0233—Emergency operating parts, e.g. for stop-switch in dangerous conditions for alarm triggering, e.g. fire alarm, emergency off switches operated by breaking a glass
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/052—Controlling, signalling or testing correct functioning of a switch
IT48632/83A 1982-08-03 1983-07-06 Perfezionamento negli interruttori elettrici IT1172284B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8222365 1982-08-03

Publications (2)

Publication Number Publication Date
IT8348632A0 IT8348632A0 (it) 1983-07-06
IT1172284B true IT1172284B (it) 1987-06-18

Family

ID=10532075

Family Applications (1)

Application Number Title Priority Date Filing Date
IT48632/83A IT1172284B (it) 1982-08-03 1983-07-06 Perfezionamento negli interruttori elettrici

Country Status (3)

Country Link
ES (1) ES273461Y (it)
FR (1) FR2531566B1 (it)
IT (1) IT1172284B (it)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3297853A (en) * 1965-10-14 1967-01-10 Square D Co Emergency break-glass pushbutton
GB1399641A (en) * 1972-09-30 1975-07-02 Madewell Products Ltd Electric switches
FR2495374A1 (fr) * 1980-11-28 1982-06-04 Legrand Sa Dispositif d'enclenchement du type " bris de glace "
GR75412B (it) * 1981-04-28 1984-07-16 Tann Syncronome Limited

Also Published As

Publication number Publication date
FR2531566A1 (fr) 1984-02-10
ES273461U (es) 1983-12-16
IT8348632A0 (it) 1983-07-06
FR2531566B1 (fr) 1987-09-04
ES273461Y (es) 1984-07-16

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