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:
Jan. 13, 1987
Filed:
Oct. 05, 1981
Applicant:
Inventor:
Martin Braun, San Jose, CA (US);
Assignee:
The Machlett Laboratories, Incorporated, Stamford, CT (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
378143 ; 378144 ; 313311 ;
Abstract
An X-ray tube including a tubular envelope having rotatably mounted therein an anode target disc provided with an annular focal track made of X-ray emissive material having an atomic number greater than forty and coated with a heat absorbent layer having a thickness in the range of 2 to 50 micrometers and made of an elemental or a compound material, comprising one or more elements having respective atomic numbers no greater than thirty.