JPS432642B1 - - Google Patents

Info

Publication number
JPS432642B1
JPS432642B1 JP6672266A JP6672266A JPS432642B1 JP S432642 B1 JPS432642 B1 JP S432642B1 JP 6672266 A JP6672266 A JP 6672266A JP 6672266 A JP6672266 A JP 6672266A JP S432642 B1 JPS432642 B1 JP S432642B1
Authority
JP
Japan
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.)
Pending
Application number
JP6672266A
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
Publication of JPS432642B1 publication Critical patent/JPS432642B1/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H02H5/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays
    • H02H5/086—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays of cooling or lubricating fluids
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/16—Cooling; Preventing overheating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/04—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Fluid Mechanics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
  • Control Of Temperature (AREA)
JP6672266A 1965-12-06 1966-10-12 Pending JPS432642B1 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US511601A US3418531A (en) 1965-12-06 1965-12-06 Protective apparatus for a forced air cooling system

Publications (1)

Publication Number Publication Date
JPS432642B1 true JPS432642B1 (ja) 1968-01-30

Family

ID=24035617

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6672266A Pending JPS432642B1 (ja) 1965-12-06 1966-10-12

Country Status (5)

Country Link
US (1) US3418531A (ja)
JP (1) JPS432642B1 (ja)
DE (1) DE1497613A1 (ja)
FR (1) FR1505636A (ja)
GB (1) GB1136296A (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911325A (en) * 1973-01-08 1975-10-07 Micro Devices Corp Means and method for protecting an overheating communication unit
US4408244A (en) * 1978-06-08 1983-10-04 Suddeutsche Kuhlerfabrik Julius Fr. Behr Gmbh & Co. Kg Circuit safe against overload for varying the amount of power to an electric blower motor
JPS5659004U (ja) * 1979-10-11 1981-05-20
US4305259A (en) * 1980-04-03 1981-12-15 Eaton Corporation Frost sensor employing self-heating thermistor as sensor element
DE3629771A1 (de) * 1986-09-02 1988-03-03 Demolux Overhead-projektor
DE3822849A1 (de) * 1988-07-06 1990-01-11 Josef Weber Anordnung zum verhindern einer ueberhitzung von stehbildprojektoren
US11187720B2 (en) * 2017-06-16 2021-11-30 Tektronix, Inc. Test and measurement devices, systems, and methods associated with augmented reality
EP3804066A1 (en) * 2018-05-31 2021-04-14 ABB Schweiz AG Device for condition monitoring and protection of rotating electrical machines, and a method thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB483039A (en) * 1937-10-06 1938-04-06 Walter Stern Improved electric space heating system
US2475343A (en) * 1946-08-17 1949-07-05 Gen Electric Control system
US3017564A (en) * 1954-08-12 1962-01-16 Barney Walter Protective circuit
US3112435A (en) * 1962-01-15 1963-11-26 Barney Walter Surge protection circuit

Also Published As

Publication number Publication date
FR1505636A (fr) 1967-12-15
DE1497613A1 (de) 1969-10-30
GB1136296A (en) 1968-12-11
US3418531A (en) 1968-12-24

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