US2189928A - Electric discharge vessel - Google Patents

Electric discharge vessel Download PDF

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Publication number
US2189928A
US2189928A US209968A US20996838A US2189928A US 2189928 A US2189928 A US 2189928A US 209968 A US209968 A US 209968A US 20996838 A US20996838 A US 20996838A US 2189928 A US2189928 A US 2189928A
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US
United States
Prior art keywords
substance
ceramic
electric discharge
sealing
discharge vessel
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 - Lifetime
Application number
US209968A
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English (en)
Inventor
Scharfnagel Rudolf
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.)
Alcatel Lucent Deutschland AG
C Lorenz AG
Original Assignee
Standard Elektrik Lorenz AG
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 Standard Elektrik Lorenz AG filed Critical Standard Elektrik Lorenz AG
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Publication of US2189928A publication Critical patent/US2189928A/en
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B37/00—Joining burned ceramic articles with other burned ceramic articles or other articles by heating
    • C04B37/02—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles
    • C04B37/023—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles characterised by the interlayer used
    • C04B37/026—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles characterised by the interlayer used consisting of metals or metal salts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/50—Prostheses not implantable in the body
    • A61F2/60—Artificial legs or feet or parts thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/32—Seals for leading-in conductors
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/02—Aspects relating to interlayers, e.g. used to join ceramic articles with other articles by heating
    • C04B2237/12—Metallic interlayers
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/32—Ceramic
    • C04B2237/34—Oxidic
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/40—Metallic
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
    • C04B2237/62—Forming laminates or joined articles comprising holes, channels or other types of openings
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
    • C04B2237/76—Forming laminates or joined articles comprising at least one member in the form other than a sheet or disc, e.g. two tubes or a tube and a sheet or disc
    • C04B2237/765—Forming laminates or joined articles comprising at least one member in the form other than a sheet or disc, e.g. two tubes or a tube and a sheet or disc at least one member being a tube
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
    • C04B2237/78—Side-way connecting, e.g. connecting two plates through their sides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
    • C04B2237/84—Joining of a first substrate with a second substrate at least partially inside the first substrate, where the bonding area is at the inside of the first substrate, e.g. one tube inside another tube
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
    • C04B2237/88—Joining of two substrates, where a substantial part of the joining material is present outside of the joint, leading to an outside joining of the joint

Definitions

  • ELECTRIC DISCHARGE VESSEL Filed may 25, 1938 /n/enar.- b Rudolf c/larjnagel Patented Feb. 13, 1940 UNITED STATES ELECTRIC DISCHARGE VESSEL Rudolf Scharfnagel, Stuttgart, Germany, assignor to C. Lorenz Aktiengesellschaft, Berlin-Tempelhof, Germany, a company Application May 25, 1938, Serial No. 209,968 In Germany May 28, 1937 6 Claims.
  • the present invention relates to electric discharge vessels, and more specifically to a method of supporting the electrode system and fixing the electrode supporting members of electric discharge vessels such as are used in small electronic discharge devices.
  • One object of the present invention is to provide a method of attaching two-part electrode leads and supporting wires to a refractory, and more particularly to a ceramic insulation member of electric discharge vessels which must have high insulation resistance and low interelectrode ca- 30 pacitance values. It is a further object of this invention to permit the connection of the supporting wires to the terminals which are adapted to be fixed in the insulation member by a glass seal as part of this or a prior step of fabrication.
  • the binding or sealing substance which is used for intimately joining the supporting wires to the terminals of the tube may, according to the invention, be also employed for rigidly fixing said supporting wires in an insulating body of ceramic 40 material by heating said agent.
  • This not only saves one step of the manufacturing process, but also provides a reliable conductive connection between the two parts of the leading-in conductors even if these parts have the simplest shapes.
  • a brazed or other juncture between a supporting Wire and its terminal must be eifected either in an atmosphere which is free of oxygen or by the aid of reducing means.
  • a metallic oxide must be formed for securing adhesion of a metal- 50 lic binding agent to a ceramic substance, i. e., for rigidly interconnecting a supporting wire and a ceramic insulation member.
  • the sealing substance may be used for intimately uniting the supporting Wires with the ceramic insulation body at the same point at which these wires are 20 connected to their terminals. This is accomplished without employing a second binding agent or adding to the rst mentioned sealing substance.
  • the same substance which has been employed for joining the supporting wire to its terminal may also be utilized for rigidly connecting the two metallic members and the insulating body of ceramic material.
  • the sealing may preferably be accomplished inside the ceramic member, i. e., in a bore or aperture therein. This will prevent the expansion of the sealing substance While in a fluid condition and will fix the shape thereof when it solidies by causing it to stick to the supporting Wire and to the walls of the bore or aperture.
  • the sealing operation is accomplished in such manner that the supporting wire is preliminarily joined in a reducing atmosphere by a brazing process to an extension or terminal whereupon a small quantity of oxygen is admitted for the purpose of causing the sealing substance to intumesce within the bore or aperture of the ceramic insulating body.
  • the condition thus obtained is not yet adapted to insure adhesion between the binding or sealing agent and the ceramic substance. Additional oxygen is then introduced and the temperature is rapidly increased so as to produce a non-porous fiux of the binding agent in the bore or aperture of the ceramic insulating body.
  • the present invention may be used with either ⁇ vacuum tubes or gaseous discharge devices.
  • Figs. 1 to 3 schematically illustrate the various steps of the above described method.
  • Fig. 1 illustrates the initial stage of the connection between a supporting wire l, and its metallic terminal 2 is eiected by a sealing 3 in a reducing atmosphere.
  • the melting point of the substance 3 is in excess of 900 C. This operation may be accomplished either within the ceramic insulation 4 or outside of it.
  • Fig. 2 illustrates the binding agent 3 in its intumescing condition upon the addition of a small quantity of oxygen.
  • Fig. 3 shows the binding agent 3 subsequent to its fluxing into the bore of the insulation 4.
  • edge of this aperture provides a'sharply defined boundary for the binding agent so as'to prevent the formation of a conductive layer or an increase of capacity on the insulating surfaces of the ce' ramic substance.
  • a ceramic wall having an aperture, a conductor in said aperture and projecting to one side of the wall, a terminal on the other side of the wall and fastened to the conductor, and a metallic sealing substance substantially filling said aperture and flush with said one side of the wall.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Transplantation (AREA)
  • Public Health (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Products (AREA)
US209968A 1937-05-28 1938-05-25 Electric discharge vessel Expired - Lifetime US2189928A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2189928X 1937-05-28

Publications (1)

Publication Number Publication Date
US2189928A true US2189928A (en) 1940-02-13

Family

ID=7989303

Family Applications (1)

Application Number Title Priority Date Filing Date
US209968A Expired - Lifetime US2189928A (en) 1937-05-28 1938-05-25 Electric discharge vessel

Country Status (3)

Country Link
US (1) US2189928A (enrdf_load_stackoverflow)
BE (1) BE428287A (enrdf_load_stackoverflow)
FR (1) FR838443A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2814100A (en) * 1953-01-02 1957-11-26 Ohio Commw Eng Co Method of sealing a port in a glass object
JP3014758B2 (ja) 1991-09-30 2000-02-28 エル． フィリップス，ファン エネルギーを蓄積する補綴脚パイロン

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2814100A (en) * 1953-01-02 1957-11-26 Ohio Commw Eng Co Method of sealing a port in a glass object
JP3014758B2 (ja) 1991-09-30 2000-02-28 エル． フィリップス，ファン エネルギーを蓄積する補綴脚パイロン

Also Published As

Publication number Publication date
BE428287A (enrdf_load_stackoverflow)
FR838443A (fr) 1939-03-06

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