GB422392A - Improvements in or relating to thermally-operated current limiting devices - Google Patents

Improvements in or relating to thermally-operated current limiting devices

Info

Publication number
GB422392A
GB422392A GB15283/34A GB1528334A GB422392A GB 422392 A GB422392 A GB 422392A GB 15283/34 A GB15283/34 A GB 15283/34A GB 1528334 A GB1528334 A GB 1528334A GB 422392 A GB422392 A GB 422392A
Authority
GB
United Kingdom
Prior art keywords
fluid
diaphragm
overload
thermally
circuit
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB15283/34A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ROBERTO JUSTO PERALTA
Original Assignee
ROBERTO JUSTO PERALTA
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 ROBERTO JUSTO PERALTA filed Critical ROBERTO JUSTO PERALTA
Publication of GB422392A publication Critical patent/GB422392A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H77/00—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting
    • H01H77/02—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism
    • H01H77/04—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrothermal opening

Landscapes

  • Thermally Actuated Switches (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)

Abstract

422,392. Thermal switches. PERALTA, R. J., 73, Vennstiano Carranza, Despacho 10, Mexico City. May 22, 1934, No. 15283. Convention date, May 23,1933. [Class 38 (v)] A thermally operated switch for breaking a circuit on overload and remaking it when the overload ceases comprises a screw plug body 10 containing an expansible fluid such as nitrogen or ozone, a heating coil 22 for such fluid and a diaphragm 15 adapted to move into the dotted-line position when the fluid has been sufficiently heated by an overload. The diaphragm has fixed to it a rod 16 carrying a contact 17 adapted normally to engage the cover 11 to complete the circuit, and automatically returns to this position when the fluid cools. In modifications, a spring assists this return movement of the diaphragm and the contact 17 is fitted with an insulating cap forming a knob whereby the switch may be manually operated on and off.
GB15283/34A 1933-05-23 1934-05-22 Improvements in or relating to thermally-operated current limiting devices Expired GB422392A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MX422392X 1933-05-23

Publications (1)

Publication Number Publication Date
GB422392A true GB422392A (en) 1935-01-10

Family

ID=19742805

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15283/34A Expired GB422392A (en) 1933-05-23 1934-05-22 Improvements in or relating to thermally-operated current limiting devices

Country Status (2)

Country Link
US (1) US2024060A (en)
GB (1) GB422392A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2493448A (en) * 1942-11-07 1950-01-03 Landis & Gyr Ag Arrangement for counting and measuring electric current impulses of short duration
US3956895A (en) * 1973-01-30 1976-05-18 The United States Of America As Represented By The Administrator Of The National Institute Of Health Heat engine

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2434984A (en) * 1943-06-17 1948-01-27 Metals & Controls Corp Thermostatic control
US2862665A (en) * 1954-01-04 1958-12-02 Baso Inc Fuel control system
US3061707A (en) * 1959-10-20 1962-10-30 Stiebel Theodor Hermann Pressure-temperature operated electrical switching apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2493448A (en) * 1942-11-07 1950-01-03 Landis & Gyr Ag Arrangement for counting and measuring electric current impulses of short duration
US3956895A (en) * 1973-01-30 1976-05-18 The United States Of America As Represented By The Administrator Of The National Institute Of Health Heat engine

Also Published As

Publication number Publication date
US2024060A (en) 1935-12-10

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