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:
Dec. 31, 2002
Filed:
Dec. 07, 2000
Applicant:
Inventor:
Stephen R. Kaufman, Georgetown, TX (US);
Assignee:
EMC Test Systems, L.P., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 9/00 ;
U.S. Cl.
CPC ...
H05K 9/00 ;
Abstract
An electromagnetic radiation seal, particularly adapted for sealing a rotary or linearly movable shaft penetrating a shielded enclosure includes a housing mountable on an enclosure wall and forming a cavity delimited by the housing and the shaft and which is filled with metal particulates, such as tungsten or lead shot pellets. The metal particulates are in intimate contact with the shaft and with the seal housing to prevent transmission of electromagnetic radiation between the interior and exterior of the enclosure at the penetration formed by the shaft.