US1889598A - Incandescent electric lamp - Google Patents

Incandescent electric lamp Download PDF

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Publication number
US1889598A
US1889598A US282591A US28259128A US1889598A US 1889598 A US1889598 A US 1889598A US 282591 A US282591 A US 282591A US 28259128 A US28259128 A US 28259128A US 1889598 A US1889598 A US 1889598A
Authority
US
United States
Prior art keywords
filament
tungsten
lamp
incandescent
electric lamp
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
US282591A
Other languages
English (en)
Inventor
Force Jonathan
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.)
General Electric Co
Original Assignee
General Electric Co
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
Priority to BE360363D priority Critical patent/BE360363A/xx
Priority to DEP58501D priority patent/DE483367C/de
Priority to BE313010D priority patent/BE313010A/xx
Application filed by General Electric Co filed Critical General Electric Co
Priority to US282591A priority patent/US1889598A/en
Priority to FR677066D priority patent/FR677066A/fr
Priority to GB17140/29A priority patent/GB313010A/en
Application granted granted Critical
Publication of US1889598A publication Critical patent/US1889598A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/52—Means for obtaining or maintaining the desired pressure within the vessel
    • H01K1/54—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering

Definitions

  • My invention relates to electric incandescent lamps having tungsten or other refractory metal filaments. More particularly my invention relates to so-called getters for such lamps.
  • the object of my invention is to provide a getter which will act to reduce blackening of the lamp and also to prevent failure of the lamp on account of the attack of the filament by water vapor.
  • FIG. 1 is an elevation of an electric incandescent lamp to which my invention is applied; and Fig. 2 is a perspective on an enlarged scale of the end of a leading-in conductor and the filament to which it is clamped.
  • the specific lamp shown is of the gas-filled variety and comprises the coiled filament 10, the ends of which are clamped at 1112 to the inner leading-in conductors 1344 which are preferably of ever, ordinary alcohol may be used and the I powder may be painted on or may be applied by dipping.
  • the binder is dissipated but the powder still seems to hold for a considerable time.
  • Tungsten or tantalum powder is preferred on account of its refractory character and affinity for oxygcnl
  • metal of the tungsten class is used to denote metals having high melting points and aifinity for oxygen comparable with tungsten.

Landscapes

  • Knives (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
US282591A 1928-06-04 1928-06-04 Incandescent electric lamp Expired - Lifetime US1889598A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
BE360363D BE360363A (da) 1928-06-04
DEP58501D DE483367C (de) 1928-06-04 Elektrische Gluehlampe
BE313010D BE313010A (da) 1928-06-04
US282591A US1889598A (en) 1928-06-04 1928-06-04 Incandescent electric lamp
FR677066D FR677066A (fr) 1928-06-04 1929-06-04 Perfectionnements aux lampes électriques à incandescence
GB17140/29A GB313010A (en) 1928-06-04 1929-06-04 Improvements in and relating to incandescent electric lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US282591A US1889598A (en) 1928-06-04 1928-06-04 Incandescent electric lamp

Publications (1)

Publication Number Publication Date
US1889598A true US1889598A (en) 1932-11-29

Family

ID=23082185

Family Applications (1)

Application Number Title Priority Date Filing Date
US282591A Expired - Lifetime US1889598A (en) 1928-06-04 1928-06-04 Incandescent electric lamp

Country Status (4)

Country Link
US (1) US1889598A (da)
BE (2) BE360363A (da)
FR (1) FR677066A (da)
GB (1) GB313010A (da)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3346761A (en) * 1965-07-02 1967-10-10 Gen Electric Incandescent lamp with a tungsten filament with tantalum imbedded in the surface to act as a gettering agent
US20140084785A1 (en) * 2012-09-21 2014-03-27 Stanley Electric Co., Ltd. Light source device, method for manufacturing the same and filament
US9252006B2 (en) 2011-10-27 2016-02-02 Stanley Electric Co., Ltd. Incandescent bulb, filament, and method for manufacturing filament

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8004550A (nl) * 1979-09-13 1981-03-17 Gte Prod Corp Molybdeen-tantaliuminvoerdraad en werkwijze voor het vervaardigen daarvan.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3346761A (en) * 1965-07-02 1967-10-10 Gen Electric Incandescent lamp with a tungsten filament with tantalum imbedded in the surface to act as a gettering agent
US9252006B2 (en) 2011-10-27 2016-02-02 Stanley Electric Co., Ltd. Incandescent bulb, filament, and method for manufacturing filament
US20140084785A1 (en) * 2012-09-21 2014-03-27 Stanley Electric Co., Ltd. Light source device, method for manufacturing the same and filament
US9252007B2 (en) * 2012-09-21 2016-02-02 Stanley Electric Co., Ltd. Light source device, method for manufacturing the same and filament

Also Published As

Publication number Publication date
BE313010A (da)
FR677066A (fr) 1930-03-03
GB313010A (en) 1930-03-13
BE360363A (da)

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