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. 01, 2005
Filed:
Aug. 09, 2001
Applicant:
John W. Shaffer, Danvers, MA (US);
Inventor:
John W. Shaffer, Danvers, MA (US);
Assignee:
Osram Sylvania Inc., Danvers, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 6128 ; F04B 3702 ;
U.S. Cl.
CPC ...
Abstract
An arc discharge lamp has an arc chamber with an amalgam tip attached to and communicating with the arc chamber through a constricted area. An amalgam retainer is positioned in the arc chamber and is abutted against the constricted area. The amalgam retainer is vibration-insensitive, solid and liquid amalgam impervious and mercury vapor pervious. An amalgam is contained within the amalgam tip.