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. 04, 1992
Filed:
Sep. 24, 1990
Julius T Johnson, Cedar Rapids, IA (US);
Robert R Johnson, Cedar Rapids, IA (US);
Other;
Abstract
An arrangement and device for on-line liquid sampling in which small samples of a liquid, particularly a sterilizable liquid, flowing through a pipe are periodically withdrawn. Sterilization of the sampling device together with a collecting container attached thereto is made possible without exposure of the device to the atmosphere as the device is mounted on the pipe. This is achieved by enveloping the sampling device with the collection container attached thereto by a flexible, high-temperature resistant enclosure such as a plastic bag, which normally seals off the liquid entry port to the device; sterilizing the device and container assembly in this condition; and providing the pressure air actuated valve in the device which serves to close the normally open valve seat to trap a sample of the liquid, with an extension which punctures the bag adjacent to the entry port incident to the actuation of the valve. The design of the device has also been improved in various respects to simplify its construction and improve its accuracy, convenience and sanitary performance in operation.