US 5,293,307 AGranted

Miniature flashlight

AssigneeMag Instrument, Inc.

InventorAnthony Maglica

Life of this patent

Estimating the term…

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Abstract

A miniature flashlight comprising a barrel, tailcap, head, bulb holder, bulb and an electrical circuit. The bulb holder is positioned at one end of the barrel such that the bulb extends into the head. The head includes a parabolic reflector surrounding the bulb such that the rotation of the head relative to the barrel changes the focus of the flashlight beam. A rotary switch associates the bulb holder with the barrel to control opening and closing of the electrical circuit. Rotation of the head away from the barrel closes the electrical circuit. The head is not a part of the electrical circuit and its removal exposes the bulb for substantially spherical illumination. The head assembly is removable from the barrel for use as a base into which the tailcap and barrel is inserted to stand the miniature flashlight in its "on" condition, as a lamp.

Claims1

Dependent claims

A flashlight comprising

a barrel for retaining at least one dry cell battery and having an inwardly extending lip at a first end of said barrel;
a head assembly mounted to axially move relative to said first end of said barrel and including fixed therein a lens and a substantially parabolic reflector having a central hole;
a lamp bulb extending freely through said central hole;
an insulated receptacle including an inner receptacle portion positioned in said barrel against said lip and an outer receptacle portion axially slidably engaged with said inner receptacle portion and positioned outwardly of said first end of said barrel against said reflector, one of said outer receptacle portion and said inner receptacle portion including a stop to limit relative axial movement between said inner and said outer receptacle portions, said lamp bulb being mounted to said outer receptacle portion and said inner receptacle portion having a contact extending to adjacent said lip.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 07/938,626Filed 1 Sep 1992 · continuation
Priority: 6 Sep 1984
Granted: 8 Mar 1994
Term ends: Not estimatedThe source records don’t support an estimate.

Classification18 codes

F21V 31/005
Gas-tight or water-tight arrangements: sealing arrangements therefor
F21L 2/00
Systems of electric lighting devices
F21L 4/005
Electric lighting devices with self-contained electric batteries or cells: the device being a pocket lamp
F21S 9/02
Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply: the power supply being a battery…

Family

Serial648,032Parent of this continuation · filed 6 Sep 1984
Serial828,729Parent of this continuation · filed 11 Feb 1986
Serial34,918Parent of this continuation · filed 6 Apr 1987
Serial222,378Parent of this continuation · filed 19 Jul 1988
Serial356,361Parent of this continuation · filed 23 May 1989
Serial553,977Parent of this continuation · filed 16 Jul 1990
Serial809,846Parent of this continuation · filed 18 Dec 1991
US 5,143,441 AParent of this continuation · filed 1 Sep 1992
US 4,942,505 AParent of this continuation
US 4,899,265 AParent of this continuation
US 4,658,336 AParent of this continuation
US 4,577,263 AParent of this continuation
US 5,293,307 AThis patent

From the US filing history. Foreign family members aren’t listed.