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:
Oct. 06, 2009
Filed:
Mar. 02, 2005
James E. Usowicz, Webster, MA (US);
Peyton C. Beals, Wrentham, MA (US);
Russell Keene, Sudbury, MA (US);
Richard Kent, Norfolk, MA (US);
Miguel Soares, Norton, MA (US);
John Heden, Hollis, NH (US);
James E. Usowicz, Webster, MA (US);
Peyton C. Beals, Wrentham, MA (US);
Russell Keene, Sudbury, MA (US);
Richard Kent, Norfolk, MA (US);
Miguel Soares, Norton, MA (US);
John Heden, Hollis, NH (US);
Waters Technologies Corporation, Milford, MA (US);
Abstract
A device () for detecting a condition in a fluid system () and initiating a response based on the condition. The device consists of a sensor () that responds to a first and second condition of the fluid () in the system and a control means () that receives the responses and generates command signals in based on the received response. In a liquid chromatography system, the device is used to determine the volume of components of the fluid system. In addition, the device allow leaks to be detected and permits the fluid in the system to be transported at a optimum speed. The device is well implemented utilizing to a light emitter and light receptor that are sensitive to the fluid in either a gaseous or liquid state.