GB938899A - Improvements relating to thermostats - Google Patents

Improvements relating to thermostats

Info

Publication number
GB938899A
GB938899A GB15717/61A GB1571761A GB938899A GB 938899 A GB938899 A GB 938899A GB 15717/61 A GB15717/61 A GB 15717/61A GB 1571761 A GB1571761 A GB 1571761A GB 938899 A GB938899 A GB 938899A
Authority
GB
United Kingdom
Prior art keywords
bulb
elements
type
thermostat
current
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
GB15717/61A
Inventor
Bertram Robert Leigh
Leonard George Thomas
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.)
Stone J and Co Ltd
Original Assignee
Stone J and 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 Stone J and Co Ltd filed Critical Stone J and Co Ltd
Priority to GB15717/61A priority Critical patent/GB938899A/en
Priority to US190744A priority patent/US3196685A/en
Publication of GB938899A publication Critical patent/GB938899A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K5/00—Measuring temperature based on the expansion or contraction of a material
    • G01K5/02—Measuring temperature based on the expansion or contraction of a material the material being a liquid
    • G01K5/16—Measuring temperature based on the expansion or contraction of a material the material being a liquid with electric contacts
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/30—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Temperature (AREA)
  • Thermally Actuated Switches (AREA)
  • Control Of Resistance Heating (AREA)

Abstract

938,899. Mercury switches; thermal switches. J. STONE & CO. (DEPTFORD) Ltd. April 18, 1962 [May 1, 1961], No. 15717/61. Class 38 (5). [Also in Group XIII] The Peltier thermo-electric, heating or cooling, effect produced at a semi-conductor junction or junctions by a low-voltage direct current is employed for adjusting or changing the setting of a thermostat or like temperaturesensing device. A mercury in glass thermostat 2 has contacts 11, a main bulb 3 and an auxiliary bulb 1 embraced by a heat conductor 4 which conducts heat between bulb 1 and a semiconductor device comprising two thermo-electric elements 5, 6. Elements 5, 6, are blocks of P-type and N-type semi-conductor material respectively and are connected to heat sinks in the form of copper plates 8. Leads 9 are connected in a circuit for supplying D.C. to the elements 5, 6, the current being controlled by manual means or automatically, and bulb 1 is cooled or heated-depending upon the direction of current through the elements 5, 6, and the thermostat setting is correspondingly raised or lowered from its normal value. Reference is made to thermostats of the bimetal type, the type operated by gas or liquid pressure or by the pressure of vapour evaporated from a liquid. Bulb 4 and associated parts of the apparatus have thermal insulation 10. Specifications 827,774 and 924,664 are referred to.
GB15717/61A 1961-05-01 1961-05-01 Improvements relating to thermostats Expired GB938899A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB15717/61A GB938899A (en) 1961-05-01 1961-05-01 Improvements relating to thermostats
US190744A US3196685A (en) 1961-05-01 1962-04-27 Thermostats

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB15717/61A GB938899A (en) 1961-05-01 1961-05-01 Improvements relating to thermostats

Publications (1)

Publication Number Publication Date
GB938899A true GB938899A (en) 1963-10-09

Family

ID=10064214

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15717/61A Expired GB938899A (en) 1961-05-01 1961-05-01 Improvements relating to thermostats

Country Status (2)

Country Link
US (1) US3196685A (en)
GB (1) GB938899A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4879879A (en) * 1988-10-05 1989-11-14 Joseph Marsala Apparatus for controlling a thermostatic expansion valve
US5423479A (en) * 1993-03-29 1995-06-13 Galen E. Nichols Thermoelectric actuator for temperature control systems
DE102009022640A1 (en) * 2009-05-26 2010-12-02 Danfoss A/S valve assembly

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA629628A (en) * 1961-10-24 Westinghouse Electric Corporation Thermoelements and devices embodying them
US2158146A (en) * 1937-09-20 1939-05-16 Vapor Car Heating Co Inc Thermostat
US2871376A (en) * 1953-12-31 1959-01-27 Bell Telephone Labor Inc Temperature sensitive transistor control circuit
US3017522A (en) * 1958-08-20 1962-01-16 Harry R Lubcke Electrical semiconductor cooling by use of peltier effect

Also Published As

Publication number Publication date
US3196685A (en) 1965-07-27

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