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:
Jun. 20, 2000
Filed:
Nov. 26, 1997
Applicant:
Inventors:
Peter M Pozniak, San Jose, CA (US);
Duy Khanh Trang, San Jose, CA (US);
Benjamin R Roberts, Los Altos, CA (US);
Assignee:
Other;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F04F / ;
U.S. Cl.
CPC ...
137 14 ; 137208 ; 137209 ; 137210 ;
Abstract
A system and method for dispensing an aqueous solution to one or more points of use is provided with one or more pressure vessels that are adapted to be charged with pressurized gas to drive the aqueous solution on to the point or points of use. A humidifier is also employed to humidify the pressurized gas to at least inhibit the pressurized gas from evaporating the moisture from the aqueous solution. In such manner, changes to the make up of the aqueous solution are avoided. Such changes can produce caking and/or changes in chemical properties found in pressure vessels used in dispensing slurries.