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:
Nov. 24, 1998
Filed:
May. 02, 1996
Applicant:
Inventors:
Andrew Malcolm Bray, Boronia, AU;
Timothy Lloyd Belcher, Scoresby, AU;
Assignee:
Chiron Corporation, Emeryville, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01F / ;
U.S. Cl.
CPC ...
7329 / ; 137395 ; 137392 ; 7339 / ;
Abstract
The invention relates to a vessel apparatus for holding and transferring liquids, in which the level of liquid may be controlled and monitored automatically. A depth sensing device, included in the apparatus, detects the presence or absence of liquid at predetermined levels. The device detects the difference in transmission of a low frequency electromagnetic signal between aerial probes based on the state of immersion (wet or dry) of the transmitting and receiving probes.