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. 28, 2003
Filed:
Jul. 03, 2001
Xavier R. Ollat, Bloomfield, CT (US);
Joseph W. Quinn, Bloomfield, CT (US);
Terry M. Grayson, Granby, CT (US);
Alstom (Switzerland) Ltd, Baden, CH;
Abstract
An apparatus for providing information concerning a condition of a vessel such as a steam drum which segregates steam and liquid from one another includes a liquid contact assembly a signal generator element and a housing and a conduit for enclosing the signal generator element in a substantially leak proof manner within the vessel space. The liquid contact assembly is disposable at a first vessel location in the steam drum and has a vibration component operable to vibrate at natural frequencies which vary as a function of a predetermined characteristic of the liquid at the first vessel location and a support component for supporting the water contact assembly in contact with the liquid at the first vessel location. The signal generator element generates a signal indicative of a natural frequency of the vibration component