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. 19, 1983
Filed:
Sep. 16, 1980
Applicant:
Inventor:
Charles R Olsen, Eagleville, PA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F42B / ;
U.S. Cl.
CPC ...
102446 ; 42 59 ;
Abstract
This invention relates to a means for utilizing smaller-diameter bullets in larger-diameter cartridge cases, to achieve higher velocity without bottlenecking the cartridge case, and a firearm having a reduced bore adapted to that cartridge. Additionally, the invention provides a means of sealing the cylinder-to-barrel gap in revolvers, eliminating gas leakage at that point and thereby increasing muzzle velocity by eight to twenty percent. This invention is applicable to current gun models and cartridge components with little modification.