DE953841C - Valve for gas detonators - Google Patents

Valve for gas detonators

Info

Publication number
DE953841C
DE953841C DED14911A DED0014911A DE953841C DE 953841 C DE953841 C DE 953841C DE D14911 A DED14911 A DE D14911A DE D0014911 A DED0014911 A DE D0014911A DE 953841 C DE953841 C DE 953841C
Authority
DE
Germany
Prior art keywords
valve
flat glass
detonators
gas
plate
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
DED14911A
Other languages
German (de)
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.)
Draegerwerk AG and Co KGaA
Original Assignee
Draegerwerk AG and Co KGaA
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 Draegerwerk AG and Co KGaA filed Critical Draegerwerk AG and Co KGaA
Priority to DED14911A priority Critical patent/DE953841C/en
Application granted granted Critical
Publication of DE953841C publication Critical patent/DE953841C/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/24—Suction devices

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)

Description

Ventil für Gasspürgeräte In Gasspürgeräten werden Ventile verwandt, die den Luftstrom steuern und als sogenannte Plättchenventile ausgebildet sind. Das Ventilplättchen wird dabei durch eine Feder gegen einen Dichtungsrand gedrückt. Die Federspannung läßt sich beliebig einstellen, so daß der öffnungsdruck auf jeden gewünschten Wert reguliert werden kann. Die Ventilplättchen werden dabei aus Glimmerlamellen hergestellt, die aus natürlich gewachsenen Kristallen parallel den Gleitebenen herausgespalten werden. Diese Plättchen sind starr und bei mechanischer Beanspruchung oder bei Wärmebeanspruchung nicht deformierbar. Die Verwendung der Glimmerventile hat den Nachteil, daß bei natürlich gewachsenen Kristallen Fehlstellen auftreten können, so daß die Oberfläche nicht völlig. plan ist. Die Folge sind Undichtigkeiten. Die Verwendung von Metallplättchen scheidet aus, da sie nicht völlig starr und meistens formierbar sind und außerdem korrodieren können.Valve for gas detection devices Valves are used in gas detection devices, which control the air flow and are designed as so-called plate valves. The valve plate is pressed against a sealing edge by a spring. The spring tension can be adjusted as desired, so that the opening pressure on each desired value can be regulated. The valve plates are made from mica fins made of naturally grown crystals that are split out parallel to the slip planes will. These platelets are rigid and exposed to mechanical stress or thermal stress not deformable. The use of the mica valves has the disadvantage that at naturally grown crystals imperfections can occur, so that the surface not entirely. is plan. The result is leaks. The use of metal plates ruled out because they are not completely rigid and mostly malleable and moreover can corrode.

Die Erfindung erstrebt, die Nachteile der bekannten Ventilplättchen zu vermeiden. Die Erfindung besteht darin, daß als Ventilplättchen plangeschliffene Glasplättchen mit einem mindestens einseitigen Folienüberzug . dienen. Als plan geschliffene Glasplättchen können beispielsweise Glasplättchen der. Art der mikroskopischen Deckgläschen verwendet werden. Derart plan geschliffene Gläschen sind genügend starr und genügend plan. Durch den Folienüberzug wird die bestehende Bruchgefahr so herabgesetzt, daß die Plättchen als Ventilplättchen dienen können. Als Folienüberzug kann Kunststoff, Lack oder jedes geeignete, haftende, zähe Folienmaterial dienen. Als Haftkleber eignet sich insbesondere Polyvinylazetale. Als Haftkleber kann auch ein organischer Lack dienen. Eine weitere Ausführungsform der Erfindung besteht darin, daß das Ventilplättchen aus zwei oder mehr planen Glasplättchen besteht, die durch organische Haftkleber verbunden sind.The invention seeks to overcome the disadvantages of the known valve plates to avoid. The invention consists in the fact that the valve plate is ground flat Glass slide with at least one one-sided foil coating. to serve. As flat-ground glass flakes, for example, glass flakes can be used. Art the microscopic cover slip can be used. Such flat cut glasses are sufficiently rigid and sufficiently flat. The existing Risk of breakage reduced so that the plates can serve as valve plates. Plastic, lacquer or any suitable, adhesive, tough film material can be used as the film cover to serve. Polyvinyl acetals are particularly suitable as pressure-sensitive adhesives. As a pressure sensitive adhesive an organic varnish can also serve. Another embodiment of the invention consists in that the valve plate consists of two or more flat glass plates, which are connected by organic pressure-sensitive adhesives.

Die erfindungsgemäßen Plättchenventile gewähren absolute Dichtigkeit schon bei kleinsten Druckdifferenzen. Ein weiterer Vorteil besteht darin, daß die Glasflächen infolge ihrer Oberflächeneigenschaften nicht zum Kleben neigen. Die Plättchen sind darüber hinaus beständig gegen Temperatur- und Feuchtigkeitseinflüsse. Die Plättchen neigen nicht zur Korrosion.The plate valves according to the invention ensure absolute tightness even with the smallest pressure differences. Another advantage is that the Due to their surface properties, glass surfaces do not tend to stick. the In addition, platelets are resistant to the effects of temperature and moisture. The platelets are not prone to corrosion.

Claims (3)

PATENTANSPRUCHE:. . i. Ventil für Gasspürgeräte, dadurch gekennzeichnet, daß als Ventilplättchen plane Glasplättchen mit einem mindestens einseitigen Folienüberzug dienen. . PATENT CLAIMS: . i. Valve for gas detection devices, characterized in that that as a valve plate flat glass plate with at least one-sided film coating to serve. . 2. Ventil nach Anspruch i, dadurch gekennzeichnet, daß das plane Glasplättchen einseitig mit einem organischen Lack beschichtet ist. 2. Valve according to claim i, characterized in that the flat glass plate is coated on one side with an organic varnish. 3. Ventil nach Anspruch i und 2, dadurch gekennzeichnet, daß als Haftkleber Polyvinylazetale dienen. ¢. Ventil nach Anspruch i bis 3, dadurch gekennzeichnet, daß das Ventilplättchen aus zwei oder mehreren planen Glasplättchen besteht, die durch organische Haftkleber verbunden sind. In Betracht gezogene Druckschriften: Deutsche Patentschriften Nr. 462 205, 75o 65 i.3. Valve according to claim i and 2, characterized in that polyvinyl acetals are used as the adhesive. ¢. Valve according to Claims 1 to 3, characterized in that the valve plate consists of two or more flat glass plates which are connected by organic pressure-sensitive adhesives. Considered publications: German Patent Specifications No. 462 205, 75o 65 i.
DED14911A 1953-04-25 1953-04-25 Valve for gas detonators Expired DE953841C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED14911A DE953841C (en) 1953-04-25 1953-04-25 Valve for gas detonators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED14911A DE953841C (en) 1953-04-25 1953-04-25 Valve for gas detonators

Publications (1)

Publication Number Publication Date
DE953841C true DE953841C (en) 1956-12-06

Family

ID=7034896

Family Applications (1)

Application Number Title Priority Date Filing Date
DED14911A Expired DE953841C (en) 1953-04-25 1953-04-25 Valve for gas detonators

Country Status (1)

Country Link
DE (1) DE953841C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8705337U1 (en) * 1987-04-10 1988-05-05 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE462205C (en) * 1928-07-06 Christian Huelsmeyer Steam trap
DE750651C (en) * 1940-12-21 1945-01-23 Closing or separating plate for gas tracers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE462205C (en) * 1928-07-06 Christian Huelsmeyer Steam trap
DE750651C (en) * 1940-12-21 1945-01-23 Closing or separating plate for gas tracers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8705337U1 (en) * 1987-04-10 1988-05-05 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De

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