FR1097778A - Dispositif de fermeture hermétique d'une ouverture ménagée dans la paroi de séparation d'un récipient à vide en deux compartiments
- Google Patents
Dispositif de fermeture hermétique d'une ouverture ménagée dans la paroi de séparation d'un récipient à vide en deux compartiments
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.)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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Application filed by Philips Gloeilampenfabrieken NVfiledCriticalPhilips Gloeilampenfabrieken NV
Application grantedgrantedCritical
Publication of FR1097778ApublicationCriticalpatent/FR1097778A/fr
H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
H01J37/02—Details
H01J37/18—Vacuum locks ; Means for obtaining or maintaining the desired pressure within the vessel
Landscapes
Chemical & Material Sciences
(AREA)
Analytical Chemistry
(AREA)
Pressure Vessels And Lids Thereof
(AREA)
Surgical Instruments
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Sliding Valves
(AREA)
FR1097778D1953-04-011954-03-30Dispositif de fermeture hermétique d'une ouverture ménagée dans la paroi de séparation d'un récipient à vide en deux compartiments
ExpiredFR1097778A
(fr)