FR2145663A1 - - Google Patents
Info
- Publication number
- FR2145663A1 FR2145663A1 FR7225422A FR7225422A FR2145663A1 FR 2145663 A1 FR2145663 A1 FR 2145663A1 FR 7225422 A FR7225422 A FR 7225422A FR 7225422 A FR7225422 A FR 7225422A FR 2145663 A1 FR2145663 A1 FR 2145663A1
- Authority
- FR
- France
- 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
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
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- 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)
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 (2)
Publication Number | Publication Date |
---|---|
FR2145663A1 true FR2145663A1 (en) | 1973-02-23 |
FR2145663B1 FR2145663B1 (en) | 1978-02-10 |
Family
ID=26392962
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7225422A Expired FR2145663B1 (en) | 1971-07-13 | 1972-07-13 |
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) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4083375A (en) * | 1976-02-18 | 1978-04-11 | Johnson Dwight N | Pilot regulator |
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 |
EP3409987B1 (en) * | 2017-05-31 | 2020-11-04 | Hamilton Sundstrand Corporation | Spring sealed pneumatic servo valve |
EP3409989B1 (en) * | 2017-05-31 | 2021-09-15 | Hamilton Sundstrand Corporation | Pneumatic servo valve with adjustable drive unit |
Family Cites Families (6)
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. |
-
1971
- 1971-07-13 JP JP5236071A patent/JPS5437278B1/ja active Pending
-
1972
- 1972-06-30 US US26800572 patent/US3823726A/en not_active Expired - Lifetime
- 1972-07-07 IT IT5140672A patent/IT960992B/en active
- 1972-07-08 DE DE2233685A patent/DE2233685A1/en active Pending
- 1972-07-13 GB GB3276372A patent/GB1393259A/en not_active Expired
- 1972-07-13 FR FR7225422A patent/FR2145663B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
IT960992B (en) | 1973-11-30 |
GB1393259A (en) | 1975-05-07 |
US3823726A (en) | 1974-07-16 |
FR2145663B1 (en) | 1978-02-10 |
DE2233685A1 (en) | 1973-02-01 |
JPS5437278B1 (en) | 1979-11-14 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |