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:
Nov. 20, 2012
Filed:
Jun. 14, 2006
Jeff Thompson, Los Gatos, CA (US);
George N. Proper, Milpitas, CA (US);
Jeff Thompson, Los Gatos, CA (US);
George N. Proper, Milpitas, CA (US);
Dionex Corporation, Sunnyvale, CA (US);
Abstract
A inert sampling needle is provided for piercing a septum of a vial containing a sample. The sampling needle includes a hollow rigid support member having an inner wall, an outer wall, and a septum-piercing end. The sampling needle also includes a sheath member affixed to the rigid support member. The sheath member covers the septum-piercing end of the support member, the inner wall, and at least a portion of the outer wall adjacent the septum-piercing end to isolate the support member from the sample. Preferably, the sheath member is formed of polyetheretherketone and is affixed to the rigid support member by heat fusing. A method of forming, and a method of using the inert sampling needle is also disclosed.