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:
Jul. 31, 2018
Filed:
May. 12, 2015
Applicant:
Marko Hiipakka, Espoo, FI;
Inventor:
Marko Hiipakka, Espoo, FI;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F41A 21/48 (2006.01); F42B 10/26 (2006.01);
U.S. Cl.
CPC ...
F41A 21/48 (2013.01); F42B 10/26 (2013.01);
Abstract
A gun barrel that consists of a frame tube that encloses a barrel tube that is used to induce rotation to a projectile. The gun barrel as a whole constitutes an electric motor. The barrel tube is a permanent magnet and acts as the rotor of the motor. The stator coils of the motor are located outside the barrel tube and are used to induce rotation to the rotor, i.e., the barrel tube.