GB429390A - Improvements in heat dissipating means for electric light fittings - Google Patents

Improvements in heat dissipating means for electric light fittings

Info

Publication number
GB429390A
GB429390A GB6735/34A GB673534A GB429390A GB 429390 A GB429390 A GB 429390A GB 6735/34 A GB6735/34 A GB 6735/34A GB 673534 A GB673534 A GB 673534A GB 429390 A GB429390 A GB 429390A
Authority
GB
United Kingdom
Prior art keywords
reflector
electric
lamp casing
dissipating means
march
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
GB6735/34A
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.)
Benjamin Electric Ltd
Original Assignee
Benjamin Electric Ltd
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 Benjamin Electric Ltd filed Critical Benjamin Electric Ltd
Publication of GB429390A publication Critical patent/GB429390A/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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/505—Cooling arrangements characterised by the adaptation for cooling of specific components of reflectors
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/507—Cooling arrangements characterised by the adaptation for cooling of specific components of means for protecting lighting devices from damage, e.g. housings
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • F21V29/89—Metals

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)

Abstract

429,390. Heat-dissipating means for electric lamps. BENJAMIN ELECTRIC, Ltd., Tariff Road, Tottenham, London- (Assignees of Westberg, V. L. ; 5353, Cuyler Avenue, Chicago, U.S.A.) March 2, 1934, No. 6735. Convention date, March 3, 1933. [Class 75 (iv)] In an electric lamp comprising a reflector or other member which becomes heated by the light source and which it is desired to cool, a metallic heat-conducting member is arranged between and in contact with the heated member and the lamp casing and is so shaped as to permit air to pass between them. In the form shown, a corrugated ring-like member 12 made of very thin aluminium is supported by friction between the glass reflector 4 and the lamp casing 1. The member 12 is initially of the cylindrical form shown in Fig. 8, and in use it becomes substantially conical and is distorted at 12<a> and 14, Fig. 9, to form relatively large areas in contact with the lamp casing and reflector respectively. In a modification the member 12 is formed from a blank 16 which is initially curved, as shown in Fig. 3.
GB6735/34A 1933-03-03 1934-03-02 Improvements in heat dissipating means for electric light fittings Expired GB429390A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US429390XA 1933-03-03 1933-03-03

Publications (1)

Publication Number Publication Date
GB429390A true GB429390A (en) 1935-05-29

Family

ID=21924556

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6735/34A Expired GB429390A (en) 1933-03-03 1934-03-02 Improvements in heat dissipating means for electric light fittings

Country Status (1)

Country Link
GB (1) GB429390A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006013495A2 (en) * 2004-07-27 2006-02-09 Koninklijke Philips Electronics N.V. Lighting device comprising a lamp unit and a reflector
US7988301B2 (en) 2005-06-08 2011-08-02 Digital Projection Limited Heat transfer apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006013495A2 (en) * 2004-07-27 2006-02-09 Koninklijke Philips Electronics N.V. Lighting device comprising a lamp unit and a reflector
WO2006013495A3 (en) * 2004-07-27 2006-05-11 Koninkl Philips Electronics Nv Lighting device comprising a lamp unit and a reflector
JP2008508675A (en) * 2004-07-27 2008-03-21 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ LIGHTING DEVICE HAVING LAMP UNIT AND REFLECTOR
US7771086B2 (en) 2004-07-27 2010-08-10 Koninklijke Philips Electronics N.V. Lighting device comprising a lamp unit a reflector
US7988301B2 (en) 2005-06-08 2011-08-02 Digital Projection Limited Heat transfer apparatus

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