Vacuum sealing apparatus
AssigneeSiemens Aktiengesellschaft
InventorErnst Schilling
Life of this patent
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Abstract
A vacuum tight seal is obtained at the end of a glass or quartz ampule by apparatus comprising a threaded piece of Teflon slipped over the end of the ampule and a termination member of glass with matching threads having means for coupling to other apparatus and an optional cooling jacket screwed onto said threaded piece with a seal means made up of silicone rubber U-rings with interposed spacer rings of Teflon therebetween. An optional diaphram valve made of polyvinyl chloride and having a diaphram member of fluoroelastomer is also shown.
Claims10
Apparatus to be joined to the end of an ampule to provide sealing which can withstand a high vacuum comprising:
- a. a heat resistant cylindrical threaded part disposed over the end of the ampule;
- b. a threaded termination member of glass and including means for coupling to other apparatus screwed onto said heat resistant threaded part;
- and
- c. sealing means in the form of a plurality of rings exhibiting a tongue and groove action disposed between the ampule and said termination member and arranged to be compressed as said termination member is screwed onto said heat resistant cylindrical threaded part.
Dependencies are inferred from the claim text.