F - Mech Eng,Light,Heat,Weapons – 21 – V
Patent
F - Mech Eng,Light,Heat,Weapons
21
V
F21V 17/06 (2006.01) F21V 17/12 (2006.01) F21V 17/14 (2006.01) F21V 31/00 (2006.01)
Patent
CA 2234311
An attachment configuration for securing a circular light fixture cover to a correspondingly configured light fixture base, includes an outwardly extending helical flange around the base of the cover and a mating helical channel within the light fixture base. Preferably, the flange and channel each form only a single pitch and extend around their respective components only 360 degrees, thereby allowing the fixture cover to be removed from or installed upon the fixture base with only a single turn. A stop may be provided in the assembly to prevent overtightening of the cover to the fixture base, and alignment markings may be provided to indicate the initial engagement point and fully engaged point of the cover relative to the base. The flange and mating channel may be provided on either of the components, and may be oriented inwardly or outwardly as desired, so long as the corresponding cover and fixture base have complementary and mating configurations. The system may be used to secure light fixture covers having convex shapes to mating fixtures, and may also be applied to flat covers for flush mounted fixtures. The present attachment system provides a tight fit between the cover and fixture base, thus precluding entry of insects or other small animals into the interior of the assembly. The attachment system is devoid of screws, clips, or any other components, and requires no tools or other equipment to install and remove the light cover to and from its corresponding light fixture base.
Ilagan Artemio
Mcfadden Fincham
LandOfFree
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