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:
Oct. 02, 1990
Filed:
Mar. 03, 1989
Applicant:
Inventor:
Jack M Strok, Garrettsville, OH (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
313025 ; 313550 ;
Abstract
An improved high pressure sodium vapor lamp construction is provided for operation on sonic frequency pulses without excessive acoustic noise. The novel jacketed lamp construction employs non-magnetostrictive metal for the frame employed to suspend a ceramic arc tube within the outer jacket in combination with a particular orientation or placement for ring getter elements located within said outer envelope. Various lamp constructions embodying such improvement are disclosed to enable relatively noise free lamp operation.