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:
Sep. 08, 1998
Filed:
Jun. 27, 1997
Edward T Ferri, Jr, Gilroy, CA (US);
J Tobin Geatz, Durham, NC (US);
Gary L Corlett, Hollister, CA (US);
Applied Chemical Solutions, Hollister, CA (US);
Abstract
Apparatus for the delivery of a chemical slurry to at least one downstream facility. The apparatus comprises a measuring vessel of predetermined volume into which a liquid chemical component is introduced. A conduit connects the measuring vessel to multiple chemical sources, wherein each of said chemical sources comprises a liquid chemical component. Another conduit connects the measuring vessel to at least one mix tank. A pressure-vacuum vessel is in communication with said at least one mix tank, whereby chemical is drawn from said at least one mix tank to the pressure-vacuum vessel under negative pressure and chemical is delivered from the pressure-vacuum vessel to said at least one downstream facility under positive pressure. The pressure-vacuum vessel is in fluid communication with both said at least one mix tank and said at least one downstream facility. Valves on each of the conduits control the chemical flow therethrough. The chemical slurry is produced in said least at one mix tank by combining chemicals from one or more of the multiple chemical sources, and the slurry is delivered from said at least one mix tank to said at least one downstream facility.