NL179757C - ROOF BREATHER. - Google Patents

ROOF BREATHER.

Info

Publication number
NL179757C
NL179757C NL7505814A NL7505814A NL179757C NL 179757 C NL179757 C NL 179757C NL 7505814 A NL7505814 A NL 7505814A NL 7505814 A NL7505814 A NL 7505814A NL 179757 C NL179757 C NL 179757C
Authority
NL
Netherlands
Prior art keywords
breather
roof
roof breather
Prior art date
Application number
NL7505814A
Other languages
Dutch (nl)
Other versions
NL7505814A (en
Original Assignee
Robertson Gal Gmbh
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 Robertson Gal Gmbh filed Critical Robertson Gal Gmbh
Publication of NL7505814A publication Critical patent/NL7505814A/en
Application granted granted Critical
Publication of NL179757C publication Critical patent/NL179757C/en

Links

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
    • F24F7/02—Roof ventilation

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Building Environments (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
NL7505814A 1974-05-16 1975-05-16 ROOF BREATHER. NL179757C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742423791 DE2423791C2 (en) 1974-05-16 1974-05-16 Roof vent

Publications (2)

Publication Number Publication Date
NL7505814A NL7505814A (en) 1975-11-18
NL179757C true NL179757C (en) 1986-11-03

Family

ID=5915730

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7505814A NL179757C (en) 1974-05-16 1975-05-16 ROOF BREATHER.

Country Status (3)

Country Link
DE (1) DE2423791C2 (en)
FR (1) FR2271517A1 (en)
NL (1) NL179757C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2659748C2 (en) * 1976-12-31 1985-11-07 Robertson-GAL Gesellschaft für angewandte Lufttechnik mbH, 4052 Korschenbroich Roof fan for halls
DE4300408C1 (en) * 1993-01-09 1994-05-26 Aerovent Lufttechnik Gmbh Roof ventilator for wide openings in roofs - has rain protection covers also acting as guide walls for ejected airflows

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1029830A (en) * 1962-12-18 1966-05-18 Colt Ventilation & Heating Ltd Improvements in or relating to ventilators

Also Published As

Publication number Publication date
DE2423791A1 (en) 1975-11-27
FR2271517A1 (en) 1975-12-12
FR2271517B1 (en) 1979-04-13
DE2423791C2 (en) 1982-11-04
NL7505814A (en) 1975-11-18

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
CNR Transfer of rights (patent application after its laying open for public inspection)

Free format text: ROBERTSON GAL GESELLSCHAFT FUER ANGEWANDTE

BC A request for examination has been filed
A85 Still pending on 85-01-01
TNT Modifications of names of proprietors of patents or applicants of examined patent applications

Owner name: ROGAL GESELLSCHAFT FUER ANGEWANDTE LUFTTECHNIK MBH

V1 Lapsed because of non-payment of the annual fee