GB8506220D0 - Control apparatus - Google Patents

Control apparatus

Info

Publication number
GB8506220D0
GB8506220D0 GB858506220A GB8506220A GB8506220D0 GB 8506220 D0 GB8506220 D0 GB 8506220D0 GB 858506220 A GB858506220 A GB 858506220A GB 8506220 A GB8506220 A GB 8506220A GB 8506220 D0 GB8506220 D0 GB 8506220D0
Authority
GB
United Kingdom
Prior art keywords
control apparatus
control
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.)
Granted
Application number
GB858506220A
Other versions
GB2156996A (en
GB2156996B (en
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.)
General Electric Co
Original Assignee
General Electric Co
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
Priority claimed from US06/596,831 external-priority patent/US4561261A/en
Application filed by General Electric Co filed Critical General Electric Co
Publication of GB8506220D0 publication Critical patent/GB8506220D0/en
Publication of GB2156996A publication Critical patent/GB2156996A/en
Application granted granted Critical
Publication of GB2156996B publication Critical patent/GB2156996B/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/16Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in the magnetic properties of material resulting from the application of stress
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0041Transmitting or indicating the displacement of flexible diaphragms
    • G01L9/007Transmitting or indicating the displacement of flexible diaphragms using variations in inductance

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Compressor (AREA)
GB08506220A 1984-04-04 1985-03-11 Sensing pressure and controlling heat transfer systems Expired GB2156996B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US59681884A 1984-04-04 1984-04-04
US06/596,831 US4561261A (en) 1984-04-04 1984-04-04 Control apparatus and methods, heat transfer systems and apparatus and methods for controlling such systems and for sensing and indicating low fluid charge conditions therein

Publications (3)

Publication Number Publication Date
GB8506220D0 true GB8506220D0 (en) 1985-04-11
GB2156996A GB2156996A (en) 1985-10-16
GB2156996B GB2156996B (en) 1987-12-16

Family

ID=27082651

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08506220A Expired GB2156996B (en) 1984-04-04 1985-03-11 Sensing pressure and controlling heat transfer systems

Country Status (4)

Country Link
DE (1) DE3540915A1 (en)
FR (1) FR2571139B1 (en)
GB (1) GB2156996B (en)
IT (1) IT1184380B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1272381B (en) * 1993-04-28 1997-06-23 Siceb Spa PRESSURE SENSOR FOR CONTROL OF AIR CONDITIONING SYSTEMS AND SIMILAR

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB625249A (en) * 1944-02-07 1949-06-24 British Thomson Houston Co Ltd Improvements in and relating to pressure gauges
GB684462A (en) * 1950-05-31 1952-12-17 Andre Charles Georges Le Gall An improved method of and apparatus for measuring mechanical forces
GB971506A (en) * 1960-05-14 1964-09-30 Svenska Tandsticks Aktiebolage Improved apparatus for the measurement of physical quantities
US3292429A (en) * 1963-02-13 1966-12-20 Asea Ab Means for measuring mechanical forces
GB1070693A (en) * 1963-05-31 1967-06-01 Yaskawa Denki Seisakusho Kk Apparatus for measuring a mechanical stress
GB1168861A (en) * 1967-01-16 1969-10-29 Lockheed Aircraft Corp Ferrimagnetic Pressure Transducer
GB1211430A (en) * 1968-06-19 1970-11-04 Vnii Elektrotermicheskogo Obor Pressure trandsducer
SE347354B (en) * 1969-10-29 1972-07-31 Asea Ab
US3940992A (en) * 1973-12-26 1976-03-02 Texas Instruments Incorporated Transducer
DE3119659C2 (en) * 1981-05-16 1983-10-27 Leonhard Schmid Kg, 8900 Augsburg "Mobile mixing and conveying machine for pumpable building material mix"
JPS5815136A (en) * 1981-07-20 1983-01-28 Aisin Seiki Co Ltd Pressure sensor

Also Published As

Publication number Publication date
IT8520225A0 (en) 1985-04-04
FR2571139A1 (en) 1986-04-04
IT1184380B (en) 1987-10-28
GB2156996A (en) 1985-10-16
FR2571139B1 (en) 1989-11-24
GB2156996B (en) 1987-12-16
DE3540915A1 (en) 1986-05-28

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19980311