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:
Jun. 23, 2009
Filed:
May. 16, 2005
Eric D. Carlson, Cupertino, CA (US);
Peijun Cong, San Jose, CA (US);
William H. Chandler, Jr., Milpitas, CA (US);
Peter J. Desrosiers, Santa Clara, CA (US);
J. Christopher Freitag, Santa Clara, CA (US);
John F. Varni, Los Gatos, CA (US);
Eric D. Carlson, Cupertino, CA (US);
Peijun Cong, San Jose, CA (US);
William H. Chandler, Jr., Milpitas, CA (US);
Peter J. Desrosiers, Santa Clara, CA (US);
J. Christopher Freitag, Santa Clara, CA (US);
John F. Varni, Los Gatos, CA (US);
Symyx Technologies, Inc., Santa Clara, CA (US);
Abstract
A needle assembly has a first body and a guide rod supported for sliding movement between an extended position and a retracted position. A second body is attached to the guide rod. The second body is relatively farther from the first body when the guide rod is in the extended position and relatively closer to the first body when the guide rod is in the retracted position. The guide rod is biased to the extended position. The second body supports a venting needle that extends beyond the second body by a fixed length. A liquid handling needle is coupled to the first body. Sliding movement of the guide rod toward the retracted position retracts the second body and the venting needle relative to the liquid handling needle.