EP 1051581 A4 20030806 - IMPROVED FLASHLIGHT
Title (en)
IMPROVED FLASHLIGHT
Title (de)
STABLAMPE
Title (fr)
TORCHE ELECTRIQUE AMELIOREE
Publication
Application
Priority
- US 9901659 W 19990126
- US 1307898 A 19980126
- US 10052798 A 19980618
Abstract (en)
[origin: WO9937948A1] A flashlight (10) in accordance with the present invention includes a chamber end cap (30), head assembly (40) and lamp holder assembly. The end cap includes a bowed tripod portion to facilitate standing the flashlight on a flat surface. The head assembly includes a reflector and a lens. In one embodiment of the invention, the head assembly includes an elliptical reflector. In another embodiment, the flashlight having an elliptical reflector is matched with a negative or planar lens. In another embodiment, the head assembly includes a hyperbolic reflector is matched with a positive or planar lens. The flashlight includes electrode connections which prevent the conduction of electrical energy from batteries when improperly aligned within the flashlight. The lamp holder assembly includes a lamp socket having a lamp guide which provides a guide for installing lamp bulb into the lamp socket and also provides a secure position to the lamp bulb. The lamp holder assembly further includes a fluorescent coating or additive which illuminates light in otherwise dark conditions, thereby facilitating lamp replacement in the less than desirable light conditions. The head assembly attached to the chamber which is rotatable relative to the chamber to cause electrical coupling of a lamp and one or more batteries retained by a chamber. The flashlight also includes a spare lamp held secured by the lamp holder assembly until the user of the flashlight rotates the lamp holder assembly to align a spare lamp opening with the spare lamp.
IPC 1-7
IPC 8 full level
F21L 4/00 (2006.01); F21V 7/04 (2006.01); F21V 9/16 (2006.01); F21V 14/04 (2006.01); F21V 23/04 (2006.01)
CPC (source: EP US)
F21L 4/005 (2013.01 - EP US); F21V 7/04 (2013.01 - EP US); F21V 9/08 (2013.01 - EP US); F21V 13/14 (2013.01 - EP US); F21V 14/045 (2013.01 - EP US); F21V 19/047 (2013.01 - EP US); F21V 23/0414 (2013.01 - EP US)
Citation (search report)
- [XAY] US 5345370 A 19940906 - MURRAY DONALD W [US], et al
- [XAY] US 4577263 A 19860318 - MAGLICA ANTHONY [US]
- [YA] US 1638716 A 19270809 - SURLES LAWRENCE O
- [A] US 4210953 A 19800701 - STONE WILFRED S [US]
- [A] SCHRODER G: "Technische Optik, 2.6 ANWENDUNG ASPHAERISCHER FLAECHEN", TECHNISCHE OPTIK. GRUNDLAGEN UND ANWENDUNGEN, WURZBURG, VOGEL BUCHVERLAG, DE, 1990, pages 54 - 55, XP002222505, ISBN: 3-8023-0067-X
- See references of WO 9937948A1
Designated contracting state (EPC)
BE DE ES FR GB IT
DOCDB simple family (publication)
WO 9937948 A1 19990729; AU 2472199 A 19990809; AU 747455 B2 20020516; BR 9907253 A 20010904; CA 2318454 A1 19990729; CA 2318454 C 20080422; CN 1125940 C 20031029; CN 1289398 A 20010328; DE 69931466 D1 20060629; DE 69931466 T2 20060921; EP 1051581 A1 20001115; EP 1051581 A4 20030806; EP 1051581 B1 20060524; ES 2267246 T3 20070301; ES 2300077 T3 20080601; HK 1035927 A1 20011214; JP 2002501294 A 20020115; JP 4659211 B2 20110330; NZ 505802 A 20030630; US RE40171 E 20080325
DOCDB simple family (application)
US 9901659 W 19990126; AU 2472199 A 19990126; BR 9907253 A 19990126; CA 2318454 A 19990126; CN 99802383 A 19990126; DE 69931466 T 19990126; EP 99904294 A 19990126; ES 06004698 T 19990126; ES 99904294 T 19990126; HK 01106535 A 20010915; JP 2000528821 A 19990126; NZ 50580299 A 19990126; US 37753503 A 20030227