SE7405956L - VENTILATION DEVICE. - Google Patents

VENTILATION DEVICE.

Info

Publication number: SE7405956L
Authority: SE; Sweden
Prior art keywords: ventilation device; ventilation
Prior art date: 1974-05-03

Application number

SE7405956A

Other languages

Swedish (sv)

Other versions

SE393449B (en

Inventor

N Laing

Original Assignee

Dupont Res & Invest Service

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.)

1974-05-03

Filing date

1974-05-03

Publication date

1975-11-04

1974-05-03 Application filed by Dupont Res & Invest Service filed Critical Dupont Res & Invest Service

1974-05-03 Priority to SE7405956A priority Critical patent/SE393449B/en

1975-11-04 Publication of SE7405956L publication Critical patent/SE7405956L/en

1977-05-09 Publication of SE393449B publication Critical patent/SE393449B/en

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Thermal Sciences (AREA)
Chemical & Material Sciences (AREA)
Combustion & Propulsion (AREA)

SE7405956A 1974-05-03 1974-05-03 DEVICE FOR CIRCULATING A VERMEBRATING FLUID BETWEEN A VERMES SANK AND A VERMEKELLA IN A CLOSED CIRCUIT SE393449B (en)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
SE7405956A SE393449B (en)	1974-05-03	1974-05-03	DEVICE FOR CIRCULATING A VERMEBRATING FLUID BETWEEN A VERMES SANK AND A VERMEKELLA IN A CLOSED CIRCUIT

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
SE7405956A SE393449B (en)	1974-05-03	1974-05-03	DEVICE FOR CIRCULATING A VERMEBRATING FLUID BETWEEN A VERMES SANK AND A VERMEKELLA IN A CLOSED CIRCUIT

Publications (2)

Publication Number	Publication Date
SE7405956L true SE7405956L (en)	1975-11-04
SE393449B SE393449B (en)	1977-05-09

Family

ID=20321024

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SE7405956A SE393449B (en)	1974-05-03	1974-05-03	DEVICE FOR CIRCULATING A VERMEBRATING FLUID BETWEEN A VERMES SANK AND A VERMEKELLA IN A CLOSED CIRCUIT

Country Status (1)

Country	Link
SE (1)	SE393449B (en)

1974
- 1974-05-03 SE SE7405956A patent/SE393449B/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
SE393449B (en)	1977-05-09

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Legal Events

Date	Code	Title	Description
1995-01-31	NUG	Patent has lapsed	Ref document number: 7405956-9 Effective date: 19880318 Format of ref document f/p: F

Date

Code

Title

Description

1995-01-31

NUG

Patent has lapsed

Ref document number: 7405956-9

Effective date: 19880318

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