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:
Jun. 16, 1992
Filed:
Dec. 19, 1990
Joseph Davidowicz, Williamson, NY (US);
Alan R Bentz, Bergen, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
An apparatus and method for sampling liquids is disclosed. The apparatus includes a pipet having a chamber, a first opening at one end for introducing liquid into the chamber, and a second opening at the other end for introducing or removing a gas for respectively pressurizing or depressurizing the chamber. Positioned in the chamber is a freely movable first sealing member having a specific gravity greater than the specific gravity of the liquid and a first seat, for cooperatively containing a sample of liquid in the chamber. Also positioned in the chamber is a freely movable second sealing member having a specific gravity less than the specific gravity of the liquid and a second seat, for cooperatively limiting further flow of liquid into the chamber once a sample is obtained. Equipment for introducing or removing a gas is also provided.