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:
Nov. 06, 2001
Filed:
Jun. 02, 2000
William A. Knight, Centerville, IA (US);
EBSCO Industries, Inc., Birmingham, AL (US);
Abstract
A breech plug having an elongated body with external threads that is threadably mounted adjacent to the rearward end of the bore of a barrel of a conventional muzzle-loading rifle. The body having both forward and rearward ends with a circular depression in the forward end and surrounded by an annular rim. The circular depression having a tapered bottom surface that slopes inwardly and rearwardly and terminates in the center portion in communication with a center bore that extends longitudinally along a center axis of the body. Within the circular depression are a pair of intersecting grooves that extend across the depression. The grooves have outer ends that extend from the outer edge of the rim inwardly and rearwardly across the tapered bottom surface to the center portion in communication with the center bore of the body to permit an ignition flame emerging from the center bore to move forwardly and outwardly through the grooves to the inner diameter of the bore of the barrel to ignite a propellant.