US2280454A - Electric discharge vessel - Google Patents

Electric discharge vessel Download PDF

Info

Publication number: US2280454A
Authority: US; United States
Prior art keywords: opening; ring; discharge vessel; envelope; electric discharge
Prior art date: 1939-02-10
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

US315719A

Other languages

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.)

1939-02-10

Filing date

1940-01-26

Publication date

1942-04-21

1940-01-26 Application filed by Standard Elektrik Lorenz AG filed Critical Standard Elektrik Lorenz AG

1942-04-21 Application granted granted Critical

1942-04-21 Publication of US2280454A publication Critical patent/US2280454A/en

1959-04-21 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

239000011521 glass Substances 0.000 description 6
239000002184 metal Substances 0.000 description 5
238000007789 sealing Methods 0.000 description 3
239000000919 ceramic Substances 0.000 description 2
230000000694 effects Effects 0.000 description 2
239000000463 material Substances 0.000 description 2
230000015572 biosynthetic process Effects 0.000 description 1
229910010293 ceramic material Inorganic materials 0.000 description 1
238000001816 cooling Methods 0.000 description 1
230000001771 impaired effect Effects 0.000 description 1
238000004519 manufacturing process Methods 0.000 description 1
238000002844 melting Methods 0.000 description 1
239000007769 metal material Substances 0.000 description 1
238000000034 method Methods 0.000 description 1
238000009828 non-uniform distribution Methods 0.000 description 1
230000001681 protective effect Effects 0.000 description 1
230000005855 radiation Effects 0.000 description 1
238000012216 screening Methods 0.000 description 1
238000000926 separation method Methods 0.000 description 1
239000002699 waste material Substances 0.000 description 1

Images

Classifications

- 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
- H01J5/02—Vessels; Containers; Shields associated therewith; Vacuum locks
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
- H01J19/28—Non-electron-emitting electrodes; Screens
- H01J19/32—Anodes
- H01J19/34—Anodes forming part of the envelope
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
- H01J19/28—Non-electron-emitting electrodes; Screens
- H01J19/32—Anodes
- H01J19/36—Cooling of anodes
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
- H01J2893/0002—Construction arrangements of electrode systems
- H01J2893/0003—Anodes forming part of vessel walls
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
- H01J2893/0012—Constructional arrangements
- H01J2893/0027—Mitigation of temperature effects

Definitions

Such means must be large in relation to the dimensionsof these' devices and largeespecially as compared with the seals to be protected thereby, thus also being comparatively heavy, and hence cannot be applied to somewhat small discharge tubes.
the heat radiation from a highly heated part of thedischarge tubes, such as a wall portion thereof constituting the anode, in the case of small tubes will not be prevented vfrom impairing the seal if the protective means consists in resistances to heat interposed between the two.
discharge vessels in which the bulb or envelope is entirely or in part made of a metal in order to serve as anode may be heavily loaded.
the load may be such that this envelope or .bulb will become red hot.
the envelope is required not to be porous when red hot since otherwise the vacuum would be impaired.
Ring 5 need not be of a metallic material but suitable insulating may be a ceramic or vother body.
seal 4 is protected from being unduly heated is of advantage especially in the case of complicated seals or seals diflicult to produce free from strains.
Devices of this kind are those having two or more seals fitted to a metal bulb and spaced apart by a comparatively small distance and which are not applied to the bulbv all at. the same time but are applied one after another.
the ring 5 serving as a heat accumulating means, is useful also inasmuch as it acts to retard the cooling down of the glass layer 4 ⁇ when thermal inertia and constituting the anode, and Y a second part which carries the leads and iis'.
ployed instead thereof, may be pressed into. Atheenlargement I while producing the bulb in this way.
Anenvelope ⁇ for an electric discharge vesselprovided with anopening said envelope comprising a part having -a relatively thin wall substantially free from thermal inertia and a section having a thicker walldi'sposed between said part and said opening,l a metalsring contacting the wall of said vessel disposed within said tube at the opening therein, said' ring vand said section cooperating to minimizeA ,ther effectvof ⁇ sudden thermal changes inthe thin @walled part of the tube on the edge of the opening.
An envelope for an electric discharge Vessel provided with an opening, said envelope comprising a part having a relatively thin wall substantially free from thermal inertia and a section having a thicker wall disposed between said part and said opening, a metal ring 4contacting the wall of said vessel disposed Within said tube 410 v@at the opening therein, a member for sealing said opening; said ring and the edge of said opening'insaid envelope cooperating to minimize the effect ofsudden :thermal changes in the thin f walled part .of the tube and to distribute heat uniformly. toisaid seal.
An electric ,discharge vessel comprising elec- ".trodes and a metallic envelope therefor, said envelope being formed with thin walls adjacent to said electrodes and considerably thicker walls between said electrodes and said opening,y a metallic ring closely 'tting inside said tube' dis posed flushwith the edge of saidopeningja 'disc yof ceramic material disposed within said ringiand a member adapted to seal said ring and disc 'to thev ⁇ opening in said envelope.
An electric ...discharge vessel comprising electrode means and a metallicl envelope ⁇ therefor provided with an opening, the walls of vsaidjenvelope adjacent to said electrode means being thin and relatively free fromA thermal inertia, while the part of the wall kof the envelopey be,-
said opening and said electrode means is considerably thicker, a metal' ring disposed within said tube so that the edge thereof Vis vflush with the edge of. said opening, and means to seal jsaid opening, the .arrangement vvbeingsuch that the ring cooperates with the'thicker .portion of the 'wall of saidenvelope.tominimize theeiiect o f vtemperature variationsjof. the thinner -part and distribute heat evenly to. said sealing means.

Landscapes

Vessels And Coating Films For Discharge Lamps (AREA)
Sealing Battery Cases Or Jackets (AREA)

US315719A 1939-02-10 1940-01-26 Electric discharge vessel Expired - Lifetime US2280454A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DEL5017D DE884058C (de)	1939-02-10	1939-02-10	Entladungsgefaess mit Aussenanode

Publications (1)

Publication Number	Publication Date
US2280454A true US2280454A (en)	1942-04-21

Family

ID=7256688

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
US315719A Expired - Lifetime US2280454A (en)	1939-02-10	1940-01-26	Electric discharge vessel

Country Status (5)

Country	Link
US (1)	US2280454A (da)
CH (1)	CH212045A (da)
DE (1)	DE884058C (da)
DK (1)	DK59807C (da)
FR (1)	FR868870A (da)

1939
- 1939-02-10 DE DEL5017D patent/DE884058C/de not_active Expired
- 1939-12-30 DK DK59807D patent/DK59807C/da active
1940
- 1940-01-04 CH CH212045D patent/CH212045A/de unknown
- 1940-01-26 US US315719A patent/US2280454A/en not_active Expired - Lifetime
- 1940-12-31 FR FR868870D patent/FR868870A/fr not_active Expired

Also Published As

Publication number	Publication date
DE884058C (de)	1953-07-23
CH212045A (de)	1940-10-31
DK59807C (da)	1942-05-26
FR868870A (fr)	1942-01-19

Publication	Publication Date	Title
US2099531A (en)	1937-11-16	Electron discharge device
US2433813A (en)	1947-12-30	Electric discharge tube
US2190302A (en)	1940-02-13	Glass-metal seal
US2204217A (en)	1940-06-11	Electron tube
US2189906A (en)	1940-02-13	Electronic discharge tube
US2859372A (en)	1958-11-04	Electron tube
US2013411A (en)	1935-09-03	Pluro-metallic rod
US2245998A (en)	1941-06-17	Grid-controlled gas or vapor-filled discharge vessel for high operating voltages
US2206516A (en)	1940-07-02	Electron tube
US2206515A (en)	1940-07-02	Electric discharge vessel
US2147417A (en)	1939-02-14	E bahls
US2305901A (en)	1942-12-22	Electron tube
US3045138A (en)	1962-07-17	Electric discharge tubes
US2170648A (en)	1939-08-22	Electric discharge tube
US2195913A (en)	1940-04-02	Electric discharge tube
US2204204A (en)	1940-06-11	Electric discharge device
US2092206A (en)	1937-09-07	Storage photoelectric device
US2329019A (en)	1943-09-07	Vitreous seal protector
US3923189A (en)	1975-12-02	Quartz to glass seal
US2250183A (en)	1941-07-22	Electron discharge tube and method of manufacture
US2057661A (en)	1936-10-20	Seal
US1965977A (en)	1934-07-10	Spark plug for internal combustion engines
US1978918A (en)	1934-10-30	Thermionic tube
US1683156A (en)	1928-09-04	Electric discharge device
US1861098A (en)	1932-05-31	Electric discharge apparatus