FR1174733A - Improvements to battery-powered electric lamps - Google Patents

Improvements to battery-powered electric lamps

Info

Publication number
FR1174733A
FR1174733A FR1174733DA FR1174733A FR 1174733 A FR1174733 A FR 1174733A FR 1174733D A FR1174733D A FR 1174733DA FR 1174733 A FR1174733 A FR 1174733A
Authority
FR
France
Prior art keywords
battery
electric lamps
powered electric
powered
lamps
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
Other languages
French (fr)
Inventor
Vernon Walter Meager
Stuart Netherwood Barker
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 filed Critical
Application granted granted Critical
Publication of FR1174733A publication Critical patent/FR1174733A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V31/00—Gas-tight or water-tight arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L4/00—Electric lighting devices with self-contained electric batteries or cells
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0414—Arrangement of electric circuit elements in or on lighting devices the elements being switches specially adapted to be used with portable lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/04—Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors
    • F21V14/045—Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors in portable lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V25/00—Safety devices structurally associated with lighting devices
    • F21V25/12—Flameproof or explosion-proof arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR1174733D 1956-05-02 1957-04-30 Improvements to battery-powered electric lamps Expired FR1174733A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1174733X 1956-05-02

Publications (1)

Publication Number Publication Date
FR1174733A true FR1174733A (en) 1959-03-16

Family

ID=10879763

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1174733D Expired FR1174733A (en) 1956-05-02 1957-04-30 Improvements to battery-powered electric lamps

Country Status (1)

Country Link
FR (1) FR1174733A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987001175A1 (en) * 1985-08-21 1987-02-26 Duracell International Inc. Torch
FR2598200A1 (en) * 1986-04-30 1987-11-06 Petzl Ets COMPACT AND WATERPROOF LIGHTING LAMP WITH ADJUSTABLE LIGHT BEAM.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987001175A1 (en) * 1985-08-21 1987-02-26 Duracell International Inc. Torch
AU582469B2 (en) * 1985-08-21 1989-03-23 Duracell International Inc. Torch
FR2598200A1 (en) * 1986-04-30 1987-11-06 Petzl Ets COMPACT AND WATERPROOF LIGHTING LAMP WITH ADJUSTABLE LIGHT BEAM.
US4734834A (en) * 1986-04-30 1988-03-29 Petzl S.A. Compact waterproof lighting lamp with adjustable light beam

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