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:
Aug. 13, 1991
Filed:
Mar. 22, 1990
Horst Zeh, Karlsruhe, DE;
Abstract
A device for taking samples of radioactive and/or toxic suspensions containing solids includes a single needle head for taking samples from a liquid circulating in a pipe loop. The liquid is drawn off into a sample vessel with the liquid being pumped by a vacuum-assisted air lift. In order to minimize the risk of clogging in such a sampling device and to be able to obtain reliably representative samples, the one-needle head has a mixing chamber which widens conically toward the interior of the housing of the sampling device. The feed line extends into this conical mixing chamber to a location just ahead of the needle opening in the base. The opening at the end of the feed line has a larger diameter than the inside diameter of the sampling needle disposed in the needle head. With this configuration, a higher flow velocity is achieved together with a high degree of turbulence of the liquid in the sampling device.