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. 14, 2003
Filed:
Dec. 04, 2000
Applicant:
Inventor:
Kyong M. Park, Westlake Village, CA (US);
Assignee:
Kavlico Corporation, Moorpark, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S 4/00 ;
U.S. Cl.
CPC ...
H01S 4/00 ;
Abstract
A deign method to eliminate any micro-openings in a very high pressure sensor assembly is provided. The method involves sealing an elongated silicon pressure sensor into a fitting using an alloy and glass based materials. The materials are selected so that their thermal coefficients of expansion are progressively increasing relative to the silicon sensing element. This allows strong bonding among the materials, thereby minimizing any pressure leakage.