NL74214C - - Google Patents

Info

Publication number
NL74214C
NL74214C NL145735A NL145735A NL74214C NL 74214 C NL74214 C NL 74214C NL 145735 A NL145735 A NL 145735A NL 145735 A NL145735 A NL 145735A NL 74214 C NL74214 C NL 74214C
Authority
NL
Netherlands
Application number
NL145735A
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 filed Critical
Application granted granted Critical
Publication of NL74214C publication Critical patent/NL74214C/xx

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
    • H01H37/76—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
    • H01H37/761—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
    • 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
    • H01H37/76—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
    • H01H37/761—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit
    • H01H2037/762—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit using a spring for opening the circuit when the fusible element melts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/11—Tripping mechanism

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fuses (AREA)
NL145735A 1947-10-14 1949-04-01 NL74214C (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2599441X 1947-10-14

Publications (1)

Publication Number Publication Date
NL74214C true NL74214C (de) 1953-10-15

Family

ID=32232359

Family Applications (1)

Application Number Title Priority Date Filing Date
NL145735A NL74214C (de) 1947-10-14 1949-04-01

Country Status (4)

Country Link
US (1) US2599441A (de)
CH (1) CH274399A (de)
DE (1) DE895576C (de)
NL (1) NL74214C (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2921167A (en) * 1958-06-04 1960-01-12 Stevens Mfg Co Inc Fuse
GB961145A (en) * 1960-08-17 1964-06-17 John Emery Lindberg Fire detection systems
US3324464A (en) * 1964-05-11 1967-06-06 Electronic Assistance Corp Fire alarms
DE1228968B (de) * 1965-03-08 1966-11-17 Interstate Engineering Corp Ausloesevorrichtung fuer einen Feuermelder
US4169999A (en) * 1977-11-01 1979-10-02 Sangamo Weston, Inc. Thermal-magnetic switch
DE19605187A1 (de) * 1996-02-13 1997-08-14 Braun Ag Sicherheitseinrichtung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE374951C (de) * 1923-05-03 Johann Beck Selbsttaetiger Feuermelder mit beim Erweichen eines Schmelzkoerpers durch Federkraft zur Schliessung eines elektrischen Alarmkontaktes vorgetriebenem Bolzen
US421852A (en) * 1890-02-18 Thermostat
US643179A (en) * 1899-03-28 1900-02-13 Edward F Woodman Thermostatic apparatus.
US721451A (en) * 1901-07-27 1903-02-24 United Pneumatic Fire Alarm Telegraph Company Thermostat.
US2138509A (en) * 1932-04-29 1938-11-29 Ranco Inc Multiple control switch
DE691767C (de) * 1935-05-11 1940-06-05 Lorenz Akt Ges C Schmelzlotmelder
DE675388C (de) * 1937-10-29 1939-05-08 Metzenauer & Jung Brandsicherung mit Schmelzstreifen
US2457941A (en) * 1945-03-16 1949-01-04 Ericsson Telefon Ab L M Thermocontact

Also Published As

Publication number Publication date
CH274399A (de) 1951-03-31
DE895576C (de) 1953-11-05
US2599441A (en) 1952-06-03

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