Illumination – Self powered lamp – Cylindrical flashlight casing
Patent
1992-04-22
1992-12-01
Cole, Richard R.
Illumination
Self powered lamp
Cylindrical flashlight casing
362208, F21L 700, F21L 1500
Patent
active
051674475
ABSTRACT:
A flashlight includes an elongated main barrel portion defining a main interior cavity for holding in an end-to-end relation to a pair of batteries of first and/or second diameter sizes being different from one another, a head portion for holding a flashlight bulb and being mounted at one end of the main barrel portion, an end cap removably attachable to an opposite end of the main barrel portion for opening and closing a rear opening thereof, and a first coil spring connected to the end cap for insertion into the main barrel portion for engaging and positioning a rear end one of the batteries of the first or second diameter sizes received within the interior cavity of the main barrel portion. The flashlight also includes a removable second annular spring member disposed in concentric relation to and of larger diameter than the first spring for extending about and positioning within the main barrel portion the batteries of the second diameter size being smaller than the batteries of the first diameter size. The flashlight further an elongated auxiliary barrel portion mounted along the exterior of the main barrel portion for holding in an end-to-end relation batteries of a third diameter size.
REFERENCES:
patent: 3510644 (1970-05-01), Braese
patent: 3705983 (1972-12-01), Yamada
patent: 4285031 (1981-08-01), Reiss
patent: 4348715 (1982-03-01), Christensen et al.
patent: 4777582 (1988-10-01), Sharrah
patent: 4782432 (1988-11-01), Coffman
patent: 4985812 (1991-01-01), Uke
patent: 5006969 (1991-04-01), Lai
Cole Richard R.
Flanagan John R.
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