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:
May. 31, 2011
Filed:
Sep. 15, 2006
James E. Usowicz, Webster, MA (US);
Theodore C. Ciolkosz, Milton, MA (US);
Russell Keene, Sudbury, MA (US);
Daniel J. Mccormick, Westford, MA (US);
James E. Usowicz, Webster, MA (US);
Theodore C. Ciolkosz, Milton, MA (US);
Russell Keene, Sudbury, MA (US);
Daniel J. McCormick, Westford, MA (US);
Waters Technologies Corporation, Milford, MA (US);
Abstract
The present invention is a pressurized fluid sample injector system consisting of a sample needle, multiport valve, sample loop, metering syringe and a pressure assist pump. The speed of sample transport into the sample loop is increased by pressurizing the fluid in the system and metering the sample into the sample loop. The elevated system pressure allows the fluids to be moved faster than the vapor pressure would normally allow in a system at ambient pressure.