IT955571B - ELECTRIC FILAMENT LAMP - Google Patents

ELECTRIC FILAMENT LAMP

Info

Publication number: IT955571B
Authority: IT; Italy
Prior art keywords: filament lamp; electric filament; electric; lamp; filament
Prior art date: 1971-05-19

Application number

IT24422/72A

Other languages

Italian (it)

Original Assignee

Philips Nv

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.)

1971-05-19

Filing date

1972-05-16

Publication date

1973-09-29

1972-05-16 Application filed by Philips Nv filed Critical Philips Nv

1973-09-29 Application granted granted Critical

1973-09-29 Publication of IT955571B publication Critical patent/IT955571B/en

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/18—Mountings or supports for the incandescent body

IT24422/72A 1971-05-19 1972-05-16 ELECTRIC FILAMENT LAMP IT955571B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL7106852A NL7106852A (en)	1971-05-19	1971-05-19

Publications (1)

Publication Number	Publication Date
IT955571B true IT955571B (en)	1973-09-29

Family

ID=19813199

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT24422/72A IT955571B (en)	1971-05-19	1972-05-16	ELECTRIC FILAMENT LAMP

Country Status (8)

Country	Link
US (1)	US3764845A (en)
BE (1)	BE783623A (en)
CA (1)	CA956692A (en)
DE (1)	DE2223444A1 (en)
FR (1)	FR2138148B1 (en)
GB (1)	GB1325658A (en)
IT (1)	IT955571B (en)
NL (1)	NL7106852A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL8004030A (en) *	1980-07-14	1982-02-16	Philips Nv	ELECTRIC LIGHT BULB.
US5146134A (en) *	1990-03-15	1992-09-08	Patent Treuhand Gesellschaft Fur Elektrische Gluhlampen M.B.H.	Halogen incandescent lamp, particularly for operation from power networks, and method of its manufacture
CA2082764C (en) *	1991-12-09	2002-06-04	Guenter E. Talmon-Gros	Light bulb filament dampening system
GB2300553B (en) *	1995-03-10	1999-07-28	Ge Lighting Ltd	Heat source
US20100207523A1 (en) *	2005-06-24	2010-08-19	Koninklijke Philips Electronics, N.V.	Halogen incandescent lamp and method for manufacturing such a lamp

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2037217A (en) *	1934-04-17	1936-04-14	Heintz & Kaufman Ltd	Cathode
US2218346A (en) *	1938-07-08	1940-10-15	Spaeth Charles	Gas-filled incandescent electric lamp
US3590305A (en) *	1969-02-26	1971-06-29	Westinghouse Electric Corp	Incandescent projection lamp having a prealigned proximity reflector and filament mount assembly

1971
- 1971-05-19 NL NL7106852A patent/NL7106852A/xx unknown
1972
- 1972-04-27 US US00248219A patent/US3764845A/en not_active Expired - Lifetime
- 1972-05-13 DE DE19722223444 patent/DE2223444A1/en active Pending
- 1972-05-16 IT IT24422/72A patent/IT955571B/en active
- 1972-05-16 GB GB2295172A patent/GB1325658A/en not_active Expired
- 1972-05-17 BE BE783623A patent/BE783623A/en unknown
- 1972-05-19 FR FR727218044A patent/FR2138148B1/fr not_active Expired
- 1972-05-19 CA CA142,534A patent/CA956692A/en not_active Expired

Also Published As

Publication number	Publication date
DE2223444A1 (en)	1972-11-30
GB1325658A (en)	1973-08-08
CA956692A (en)	1974-10-22
FR2138148B1 (en)	1973-07-13
US3764845A (en)	1973-10-09
NL7106852A (en)	1972-11-21
BE783623A (en)	1972-11-17
FR2138148A1 (en)	1972-12-29

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