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GB1393259A - Pneumatic control unit - Google Patents

Pneumatic control unit

Info

Publication number
GB1393259A
GB1393259A GB3276372A GB3276372A GB1393259A GB 1393259 A GB1393259 A GB 1393259A GB 3276372 A GB3276372 A GB 3276372A GB 3276372 A GB3276372 A GB 3276372A GB 1393259 A GB1393259 A GB 1393259A
Authority
GB
United Kingdom
Prior art keywords
control unit
pneumatic control
july
yamatake
honeywell
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
GB3276372A
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.)
Azbil Corp
Original Assignee
Azbil Corp
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 Azbil Corp filed Critical Azbil Corp
Publication of GB1393259A publication Critical patent/GB1393259A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15C—FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
    • F15C4/00—Circuit elements characterised by their special functions
    • 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
    • Y10T137/00—Fluid handling
    • Y10T137/2278—Pressure modulating relays or followers
    • Y10T137/2365—Plural series units
    • 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
    • Y10T137/00—Fluid handling
    • Y10T137/2278—Pressure modulating relays or followers
    • Y10T137/2409—With counter-balancing pressure feedback to the modulating device
    • Y10T137/2452—With counter-counter balancing pressure feedback

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Feedback Control In General (AREA)

Abstract

1393259 Bumpless transfer fluid-pressure controllers YAMATAKE-HONEYWELL CO Ltd 13 July 1972 [13 July 1971] 32763/72 Heading G3P The Specification contains description similar to that in Specification 1393260 but the claims are directed to the pneumatic control unit (45).
GB3276372A 1971-07-13 1972-07-13 Pneumatic control unit Expired GB1393259A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5236071A JPS5437278B1 (en) 1971-07-13 1971-07-13
US26800572 US3823726A (en) 1971-07-13 1972-06-30 Pneumatic control unit

Publications (1)

Publication Number Publication Date
GB1393259A true GB1393259A (en) 1975-05-07

Family

ID=26392962

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3276372A Expired GB1393259A (en) 1971-07-13 1972-07-13 Pneumatic control unit

Country Status (6)

Country Link
US (1) US3823726A (en)
JP (1) JPS5437278B1 (en)
DE (1) DE2233685A1 (en)
FR (1) FR2145663B1 (en)
GB (1) GB1393259A (en)
IT (1) IT960992B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3035990A1 (en) * 1980-09-24 1982-04-29 Eckardt Ag, 7000 Stuttgart Pneumatic back-up unit - gives disturbance free manual take=over when air supply fails, using elastic force coupling

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4083375A (en) * 1976-02-18 1978-04-11 Johnson Dwight N Pilot regulator
EP3409989B1 (en) * 2017-05-31 2021-09-15 Hamilton Sundstrand Corporation Pneumatic servo valve with adjustable drive unit
EP3409987B1 (en) * 2017-05-31 2020-11-04 Hamilton Sundstrand Corporation Spring sealed pneumatic servo valve

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2712321A (en) * 1951-04-17 1955-07-05 Honeywell Regulator Co Control apparatus
US3020490A (en) * 1957-11-21 1962-02-06 Phillips Petroleum Co Process controller
US3326228A (en) * 1963-03-06 1967-06-20 Robertshaw Controls Co Pneumatic relay
US3411529A (en) * 1964-06-24 1968-11-19 Honeywell Inc Fluid regulating apparatus
US3394722A (en) * 1966-06-30 1968-07-30 Texaco Inc Automatic control system
GB1190580A (en) * 1966-08-16 1970-05-06 Ici Ltd Gain-Adaptive Control.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3035990A1 (en) * 1980-09-24 1982-04-29 Eckardt Ag, 7000 Stuttgart Pneumatic back-up unit - gives disturbance free manual take=over when air supply fails, using elastic force coupling

Also Published As

Publication number Publication date
IT960992B (en) 1973-11-30
DE2233685A1 (en) 1973-02-01
FR2145663B1 (en) 1978-02-10
FR2145663A1 (en) 1973-02-23
US3823726A (en) 1974-07-16
JPS5437278B1 (en) 1979-11-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee