Title (en)

PORTABLE LAMP

Publication

EP 0431462 A3 19920304 (DE)

Application

EP 90122803 A 19901129

Priority

DE 3940189 A 19891205

Abstract (en)

[origin: EP0431462A2] A portable lamp has a battery-accommodating tubular housing (11), which is closed in a pressure-proof fashion by a cover cap (12). Welded to the housing (11) itself is a tube (15), which has the form of a conical frustum and whose outer surface surrounds in a pressure-proof fashion a metal core (20) which has an internal thread (26, 27) in which a threaded ring (28) serves for fixing a lens arrangement (41, 42, 44). Owing to the fact that the tubular housing is sealed in a pressure-proof fashion with the tube, the metal ring, the threaded ring and the lens arrangement, the lamp can be used optimally as an explosion-protected portable lamp in potentially explosive regions of the zone O.

IPC 1-7

F21L 7/00; F21V 25/12

IPC 8 full level

F21L 4/00 (2006.01); F21V 25/12 (2006.01); F21Y 101/00 (2016.01)

CPC (source: EP)

F21L 2/00 (2013.01); F21V 25/12 (2013.01)

Citation (search report)

• [Y] EP 0285349 A2 19881005 - WOLF SAFETY LAMP COMPANY LIMIT [GB]
• [Y] US 4489367 A 19841218 - HERRON CHARLES R [US], et al
• [A] GB 308118 A 19290321 - JOHN DOWNS, et al
• [A] DE 8802979 U1 19880707
• [A] US 2535819 A 19501226 - STAMPER WILLSON Y
• [A] DE 3028806 A1 19820225 - BECK ERHARD

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB GR IT LI LU NL SE

DOCDB simple family (publication)

EP 0431462 A2 19910612; EP 0431462 A3 19920304; DE 3940189 A1 19910606; NO 905240 D0 19901204; NO 905240 L 19910606

DOCDB simple family (application)

EP 90122803 A 19901129; DE 3940189 A 19891205; NO 905240 A 19901204