Fluorescent lamp with protective assembly

Details Fluorescent lamp with protective assembly Fluorescent lamp with protective assembly

1992-05-21

1992-12-22

Yusko, Donald J.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

313493, 313634, 313 25, 313635, H01J 6130

Patent

active

051736373

ABSTRACT:
A fluorescent lamp includes a protective cover assembly having a protective tube preformed of a semi-rigid non-frangible transparent polymeric material and received over the glass tube with a clearance between the outer surface of the glass tube and inner surface of the protective tube and extending lengthwise substantially coextensively with the glass tube and a collar preformed of a heat-shrinkable polymeric material received in overlapping relation over a portion of the protective sleeve at each end thereof and over the flange portion of the adjacent cap, the collar being heat-shrunk into sealed relation with the protective tube and the cap flange portion.

REFERENCES:
patent: 3358167 (1967-12-01), Shanks
patent: 3602759 (1971-08-01), Evans
patent: 3808495 (1974-04-01), Win
patent: 4048537 (1977-09-01), Blaisdell et al.
patent: 4924368 (1990-05-01), Northrop et al.

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