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. 09, 1980
Filed:
Nov. 04, 1977
Robert S Olney, Bethlehem, PA (US);
Atlas Powder Company, Tamaqua, PA (US);
Abstract
A method and apparatus are provided for the metered delivery of microbubbles, used for example, in the production of explosive compositions. Disclosed is a holding vessel with sufficient residence time to deaerate the microbubbbles with a level indicating device for sensing the quantity of microbubbles deposited therein, the outlet of the holding vessel communicating with a dual screw feed apparatus for delivering a constant volumetric flow of deaerated microbubbles from the holding vessel and a weigh-belt, upon which the microbubbles ae deposited as they exit the screw feeder, for providing a constant flow of microbubbles by weight for delivery to processing apparatus.