FI73504B - Elektropneumatisk signalomvandlare. - Google Patents

Elektropneumatisk signalomvandlare.

Info

Publication number: FI73504B
Authority: FI; Finland
Prior art keywords: signalomvandlare; elektropneumatisk; elektropneumatisk signalomvandlare
Prior art date: 1981-02-09

Application number

FI820358A

Other languages

English (en)

Other versions

FI73504C (fi

FI820358L (fi

Inventor

Stig Norder

Lars-Erik Nilsson

Original Assignee

Somas Ventiler

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.)

1981-02-09

Filing date

1982-02-04

Publication date

1987-06-30

1982-02-04 Application filed by Somas Ventiler filed Critical Somas Ventiler

1982-08-10 Publication of FI820358L publication Critical patent/FI820358L/fi

1987-06-30 Application granted granted Critical

1987-06-30 Publication of FI73504B publication Critical patent/FI73504B/fi

1987-10-09 Publication of FI73504C publication Critical patent/FI73504C/fi

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/20—Control of fluid pressure characterised by the use of electric means
- G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
- G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means
- 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

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Fluid Mechanics (AREA)
General Engineering & Computer Science (AREA)
General Physics & Mathematics (AREA)
Automation & Control Theory (AREA)
Mechanical Engineering (AREA)
Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Transmission And Conversion Of Sensor Element Output (AREA)
Analysing Materials By The Use Of Radiation (AREA)
Measurement Of Radiation (AREA)
Magnetically Actuated Valves (AREA)

FI820358A 1981-02-09 1982-02-04 Elektropneumatisk signalomvandlare. FI73504C (fi)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
SE8100874		1981-02-09
SE8100874A SE432974B (sv)	1981-02-09	1981-02-09	Elektropneumatisk signalomvandlare

Publications (3)

Publication Number	Publication Date
FI820358L FI820358L (fi)	1982-08-10
FI73504B true FI73504B (fi)	1987-06-30
FI73504C FI73504C (fi)	1987-10-09

Family

ID=20343081

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI820358A FI73504C (fi)	1981-02-09	1982-02-04	Elektropneumatisk signalomvandlare.

Country Status (6)

Country	Link
US (1)	US4442854A (fi)
JP (1)	JPS57149601A (fi)
CA (1)	CA1176349A (fi)
FI (1)	FI73504C (fi)
NO (1)	NO159877C (fi)
SE (1)	SE432974B (fi)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5159949A (en) *	1988-12-23	1992-11-03	Dresser Industries, Inc.	Electropneumatic positioner

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3174499A (en) *	1961-11-08	1965-03-23	Honeywell Inc	Pneumatic control device
US3586287A (en) *	1969-04-11	1971-06-22	Max Knobel	Electropneumatic valve
US3645293A (en) *	1970-04-02	1972-02-29	Johnson Service Co	Electric to fluidic transducer
JPS5026695A (fi) *	1973-07-11	1975-03-19
JPS5414715B2 (fi) *	1973-09-10	1979-06-08
JPS5351997Y2 (fi) *	1974-04-25	1978-12-12

1981
- 1981-02-09 SE SE8100874A patent/SE432974B/sv not_active IP Right Cessation
1982
- 1982-01-20 US US06/341,018 patent/US4442854A/en not_active Expired - Lifetime
- 1982-02-03 NO NO820315A patent/NO159877C/no not_active IP Right Cessation
- 1982-02-04 FI FI820358A patent/FI73504C/fi not_active IP Right Cessation
- 1982-02-08 JP JP57018694A patent/JPS57149601A/ja active Pending
- 1982-02-08 CA CA000395730A patent/CA1176349A/en not_active Expired

Also Published As

Publication number	Publication date
NO820315L (no)	1982-08-10
FI73504C (fi)	1987-10-09
NO159877C (no)	1989-02-15
SE8100874L (sv)	1982-08-10
US4442854A (en)	1984-04-17
SE432974B (sv)	1984-04-30
NO159877B (no)	1988-11-07
FI820358L (fi)	1982-08-10
JPS57149601A (en)	1982-09-16
CA1176349A (en)	1984-10-16

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Legal Events

Date	Code	Title	Description
2004-08-31	MA	Patent expired	Owner name: AKTIEBOLAGET SOMAS VENTILER