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:
Mar. 30, 2021
Filed:
Dec. 07, 2016
William J. Lopresti, Marietta, GA (US);
William J. LoPresti, Marietta, GA (US);
Other;
Abstract
One or more twin screw pumps prevent backflow of wetted powder and jamming of powder eductors. A twin screw pump at an exit of a powder eductor produces a vacuum in the eductor to prevent backflow. A twin screw pump in a liquid input line produces a strong liquid stream through the eductor. A viscous or recycled fluid bypasses the eductor or is pumped through the eductor using the twin screw pump in the eductor liquid input line. The twin screw pump at the eductor output reduces the eductor exit pressure and draws a viscous liquid stream from the eductor. The powder-laden stream is directed for processing or recycling.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile