Patent ID: 8573796

Claim:
A flashlight comprising: a casing extending along an axis and having axially opposite front and rear ends and formed at the front end with a flat and axially forwardly directed annular shoulder surface and thereadjacent with a radially inwardly directed cylindrical inner surface; a collar fittable on the front end and formed with a rearwardly directed flat and annular shoulder surface, both shoulder surfaces and the inner surface being thermally conductive; a support disk having an outer edge, a front face, and a back face, the outer edge being engaged and gripped axially between the shoulder surfaces of the collar and the front end; a light source on the front face of the disk; thermally conductive front, back and side parts respectively on the front face, back face, and outer edge of the disk, the front part being flat and annular and bearing axially forward on the rearwardly directed shoulder surface of the collar, the side part being cylindrical and radially outwardly engaging the inner surface of the casing, and the rear part being flat and annular and bearing axially rearward on the shoulder surface of the casing; and a lamp head secured to the collar.