Patent ID: 8444290

Claim:
A flashlight comprising a casing extending along an axis and adapted to hold an electric power supply; a light source fixed at a front end of the casing and electrically energizeable to emit an axially forwardly directed light beam; an annular head fitted to the casing, axially shiftable thereon, and having a substantially planar, annular, and forwardly directed edge face forming a rear stop; a front-end sleeve forming a rearwardly directed other front stop and, forwardly of the front stop, a forwardly directed end face, the head having a rearwardly directed face engageable with the forwardly directed end face for limiting rearward travel of the head relative to the casing; screwthreads releasably attaching the sleeve to the casing, the front and rear stops limiting forward axial travel of the head relative to the casing; and a lens fixed in the head, whereby the lens and head can be shifted to focus the light beam.