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:
Dec. 27, 1983
Filed:
Nov. 23, 1981
Jouko Niemi, Pirkkala, FI;
Other;
Abstract
A device for preliminary crushing of a possibly clogged material to be ground and for feeding of the material into a jet mill containing a compressed flow of circulating grinding gas and material, so as to produce ultra-fineground admixtures to be used in industry which includes a plunger and screw conveyor. The device comprises a substantially vertical plug pipe, which is at its upper end provided with a feeder funnel and which is at its bottom end, either directly or via an additional pipe, connected to the jet mill above the zone of a grinding gas nozzle. At the upper end of the plug pipe preferably in its feeder funnel, at least one plunger is provided which moves back and forth and which both crushes any clogged material and forces the crushed material as a tight plug through the pipe into the jet mill. The additional pipe carries the screw for conveying the material to the mill.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile