Electricity: electrical systems and devices – Electrostatic capacitors – Variable
Patent
1992-11-25
1996-07-23
Ledynh, Bot L.
Electricity: electrical systems and devices
Electrostatic capacitors
Variable
73724, 174152GM, H01G 700
Patent
active
055396119
ABSTRACT:
This interface connection through a hole (2) in a high-temperature-resistant and vacuum-proof insulating part (1), particularly of ceramic, glass, or a single crystal, consists of a metallic lead (4, 17) inserted into the hole (2) and having a coefficient of thermal expansion less than that of the insulating part (1), wherein at least one end of the lead, if it is flush with at least one surface of the insulating part, is covered with active brazing material which high-vacuum-seals it to the insulating part, or, if it projects beyond at least one surface of the insulating part, is high-vacuum-sealed to the insulating part by means of ring-shaped active brazing material (5'), since in the liquid phase, the active brazing material moves into the gap between the wall of the hole (2) and the lead (4, 17) due to capillary action. Thus, the available materials (insulating material, metals having a smaller coefficient of thermal expansion than the insulating part, active brazing materials) can be used in a different and novel manner such that the use of a lead covered with active brazing material can be dispensed with.
REFERENCES:
patent: 3065533 (1962-11-01), Dungan
patent: 3901772 (1975-08-01), Guillotin
patent: 4131088 (1978-12-01), Reddy
patent: 4207604 (1980-06-01), Bell
patent: 4217137 (1980-08-01), Kraska
patent: 4287553 (1981-09-01), Braunlich
patent: 4287772 (1981-09-01), Mounteer et al.
patent: 4454440 (1984-06-01), Cullen
patent: 4598470 (1986-07-01), Doughterty
patent: 4631821 (1986-12-01), Houser
patent: 4661654 (1987-04-01), Strobel
patent: 4774626 (1988-09-01), Charboneau et al.
patent: 5012672 (1991-05-01), McKee
patent: 5050034 (1991-09-01), Hegner et al.
patent: 5241216 (1993-08-01), Webster
Hegner Frank
Klahn Thomas
Endress u Hauser GmbH u Co.
Ledynh Bot L.
LandOfFree
Interface connection through an insulating part does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Interface connection through an insulating part, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interface connection through an insulating part will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-718175