The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 06, 2001
Filed:
Mar. 12, 1999
Apparatus and method for producing a transparent tubular member containing a phosphorescent material
Applicant:
Inventors:
Bradford K. Mortz, Troy, MI (US);
Robert H. Miller, Canton, MI (US);
Assignee:
Global Products Sales and Marketing, L.L.C., Troy, MI (US);
Primary Examiner:
Int. Cl.
CPC ...
F21K 2/00 ;
U.S. Cl.
CPC ...
F21K 2/00 ;
Abstract
A transparent tubular member containing a phosphorescent material providing a degree of persistent illumination. The tubular member includes a first end and a second end, an outer diameter and an inner diameter establishing between the outer diameter a selected thickness. A volume of the phosphorescent material is encapsulated within the elongate tubular member and is responsive to an irradiating light source to charge the phosphorescent material to a desired degree of luminescence and so that the tubular member emits the luminescence of the phosphorescent material over a period of time.