Patent ID: 7819548
Filing Date: 2010-10-26
Classification: F21V

Abstract:
1. A fluorescent lamp assembly, comprising a fluorescent lamp tube, an outer sleeve encapsulating the fluorescent lamp tube and having a greater inside diameter than the outside diameter of the fluorescent lamp tube, the outer sleeve having a first end portion and a second end portion, an inner sleeve located between the outer sleeve and the fluorescent lamp tube and having a greater inside diameter than the outside diameter of the fluorescent lamp tube and an outside diameter less than the inside diameter of the outer sleeve, the inner sleeve having a first end portion and a second end portion, a first end cap mounted on the first end portion of the sleeves, a second end cap mounted on the second end portions of the sleeves, and means attaching the first end caps to the first end portions of the sleeves and attaching the second end cap to the second end portions of the sleeves for preventing the tube from sliding out of the sleeves and breaking if the sleeves are tilted from the horizontal during installation of the tube into a pair of electrical sockets in a lamp fixture, and for creating an inner air space between the fluorescent lamp tube and the inner sleeve and creating an outer air space between the inner and outer sleeves.