GB1320598A - Percussive photo flash lamp - Google Patents

Percussive photo flash lamp

Info

Publication number
GB1320598A
GB1320598A GB5443871A GB5443871A GB1320598A GB 1320598 A GB1320598 A GB 1320598A GB 5443871 A GB5443871 A GB 5443871A GB 5443871 A GB5443871 A GB 5443871A GB 1320598 A GB1320598 A GB 1320598A
Authority
GB
United Kingdom
Prior art keywords
percussive
tube
flash lamp
nov
photo flash
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
Application number
GB5443871A
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.)
GTE Sylvania Inc
Original Assignee
GTE Sylvania Inc
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 GTE Sylvania Inc filed Critical GTE Sylvania Inc
Publication of GB1320598A publication Critical patent/GB1320598A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K5/00—Light sources using charges of combustible material, e.g. illuminating flash devices
    • F21K5/02—Light sources using charges of combustible material, e.g. illuminating flash devices ignited in a non-disrupting container, e.g. photo-flash bulb
    • F21K5/023—Ignition devices in photo flash bulbs
    • F21K5/026—Ignition devices in photo flash bulbs using mechanical firing, e.g. percussion of a fulminating charge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K5/00—Light sources using charges of combustible material, e.g. illuminating flash devices
    • F21K5/02—Light sources using charges of combustible material, e.g. illuminating flash devices ignited in a non-disrupting container, e.g. photo-flash bulb
    • F21K5/023—Ignition devices in photo flash bulbs

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

1320598 Flash-bulbs GTE SYLVANIA Inc 23 Nov 1971 [27 Nov 1970] 54438/71 Addition to 1215276 Heading G2L In a percussively-ignitable flash-bulb the anvil wire is located co-axially within the primer tube by means of two sets of diametrically opposed protuberances formed on the wire between the coating of fulminating material and the inner, open end of the tube, the sets lying in mutually perpendicular planes and one set being disposed nearer the open end of the tube than the other set.
GB5443871A 1970-11-27 1971-11-23 Percussive photo flash lamp Expired GB1320598A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US9310970A 1970-11-27 1970-11-27

Publications (1)

Publication Number Publication Date
GB1320598A true GB1320598A (en) 1973-06-13

Family

ID=22237174

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5443871A Expired GB1320598A (en) 1970-11-27 1971-11-23 Percussive photo flash lamp

Country Status (4)

Country Link
US (1) US3700377A (en)
JP (1) JPS549491B1 (en)
GB (1) GB1320598A (en)
ZA (1) ZA717952B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4078881A (en) * 1976-12-16 1978-03-14 General Electric Company Photoflash lamp
US4201540A (en) * 1978-04-04 1980-05-06 Gte Sylvania Incorporated Percussively ignited photoflash lamp and method of making same
US4278310A (en) * 1978-04-04 1981-07-14 Gte Products Corporation Method of making a percussively-ignited photoflash lamp

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3535063A (en) * 1968-08-30 1970-10-20 Sylvania Electric Prod Photoflash lamp
US3535064A (en) * 1968-09-06 1970-10-20 Sylvania Electric Prod Photoflash lamp

Also Published As

Publication number Publication date
US3700377A (en) 1972-10-24
ZA717952B (en) 1972-09-27
JPS549491B1 (en) 1979-04-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]