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:
May. 26, 1992
Filed:
Aug. 06, 1990
Gyorgy Gergo, Pecs, HU;
Zoltan Vida, Komlo, HU;
Bela Sebestyen, Pecs, HU;
Jozsef Nemeth, Budapest, HU;
Istvan Viragh, Budapest, HU;
Monath, deceased Lajos, late of Budapest, HU;
Gabor Monath, Bp. Kresz Geza, HU;
Mecseki Szenbanyak, Pecs, HU;
Impari Technologiai Intezet, Budapest, HU;
Abstract
A method for breaking coal and other mineral matter from a bed thereof provided with a bore hole consists of the steps of applying a flushing medium to a drill bit, loosening the mineral matter upon completing the drilling by conveying the compressed air to a plurality of blow slots and sealing a mouth of the bore before loosening the mineral matter.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile