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:
Jul. 22, 1980
Filed:
Dec. 11, 1978
Wendall C Gates, Santa Cruz, CA (US);
Other;
Abstract
A device for taking a representative sample from a large volume of liquid in storage is disclosed. The device comprises a sealable sample container with fittings to facilitate attachment to the storage vessel to be sampled and a connected source of pressure controllable by valve means to cause movement of sampled liquid in and out of the sealed container. A filter unit connected to the sample container provides a trap for liquid or vapor that may be purged from the sample container as the sample is taken. The sample container has a control for providing automatic shutoff of sample flow when the sample container is filled. In one embodiment of the invention, source-pressure is utilized to create a suction for drawing liquid to be sampled into the sample container, and in a second embodiment, the source-pressure is used to purge the sample liner and its fittings prior to allowing the storage vessel pressure to force liquid into the sample container. The invention makes possible the taking of large-volume liquid samples without an explosion hazard and without exposing the operator to the liquid directly or otherwise releasing the chemical to the atmosphere.