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. 08, 1977
Filed:
Feb. 10, 1977
Chemische Werke Huls Aktiengesellschaft, Marl, DT;
Abstract
A process and apparatus for the withdrawal of samples from a reaction vessel under pressure containing a solid-liquid dispersion, emulsion, or suspension sensitive to mechanical stress, wherein a portion of the liquid consists of a liquefied gas present in the emulsion, dispersion, or suspension in a dissolved or emulsified form, as for example, the withdrawal of samples during the manufacture of polyvinyl chloride in accordance with the suspension or emulsion method. A syringe and cannula combination are filled with an inert protective fluid with the cannula being passed through a valve arrangement in the reaction vessel to eject the protective fluid thereinto and to replace the ejected fluid with a sample from the reaction vessel. The sample-containing syringe is sealed before withdrawal of the cannula of the combination from the reaction vessel, which is again sealed by the valve arrangement.