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:
Feb. 17, 2009
Filed:
May. 10, 2007
Philip E. Salzmann, Cardiff, CA (US);
Alec T. Harootunian, San Diego, CA (US);
Michael P. Emery, Santee, CA (US);
Javier H. Flores, San Diego, CA (US);
Todd N. Bennett, San Diego, CA (US);
Minh Vuong, San Diego, CA (US);
Philip E. Salzmann, Cardiff, CA (US);
Alec T. Harootunian, San Diego, CA (US);
Michael P. Emery, Santee, CA (US);
Javier H. Flores, San Diego, CA (US);
Todd N. Bennett, San Diego, CA (US);
Minh Vuong, San Diego, CA (US);
Vertex Pharmaceuticals, Inc., Cambridge, MA (US);
Abstract
A liquid level sensor comprises a plurality of electrodes arranged in a defined relationship with respect to a container filling trajectory, a signal generator coupled to one or more of the plurality of electrodes, a signal receiver coupled to one or more of the plurality of electrodes, and a sensing circuit coupled to at least one of the signal generator and signal receiver. The sensing circuit is configured to produce an output indicative of electrical resistance between at least one pair of the plurality of electrodes. The sensing circuit may be associated with the signal receiver and/or with the signal generator.