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:
Aug. 10, 2021
Filed:
Oct. 07, 2015
Benteler Steel/tube Gmbh, Paderborn, DE;
André Lömker, Velbert, DE;
Abstract
A perforation gun comprising a charging unit and an outer hollow carrier, wherein the hollow carrier is made of a seamless steel pipe, wherein the seamless steel pipe is produced by tempering a tubular steel body at a holding temperature of >450° C., the seamless steel pipe having a high burst strength and at least over part of its length having a yield strength Rp0.2 of >1050 MPa, and the seamless steel pipe having a grain structure with an average grain size of <15 μm, and the tubular steel body having been manufactured from a steel alloy, which steel alloy comprises, besides iron and inevitable impurities, the following alloying elements in mass-%: