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:
Jan. 19, 1999
Filed:
Jun. 02, 1997
Heiner Schuermann, Greenville, SC (US);
Alltrista Corporation, Indianapolis, IN (US);
Abstract
The invention provides a universal shotgun shell wad that may be used by manufacturers to assemble a variety of shotgun shells with a wide variety of shot and powder loadings. Shotgun shells of the invention use casings of the type known in the art including a base forming a cavity for a powder primer and an outer wall forming the exterior of the shotgun shell and carrying shotgun shell wad. Such shotgun shells are provided with a shotgun shell wad comprising an outer plug and an inner plug. The outer plug has a bottom shaped to form a powder chamber within the casing of the shotgun shell and a shot-carrying sleeve extending upwardly from the bottom surface and has an inner surface portion with a plurality of engagement surfaces spaced along its length. The inner plug has a closed bottom with at least one engagement surface on its outer periphery shaped for mating with the plurality of engagement surfaces on the inner portion of the outer plug. The variable engagement of the inner plug within the outer plug permit a location of the inner shot plug at variable locations spaced along the inner surface of the outer plug and provide a variable volume for shot within the shotgun shell with the outer plug providing a variable volume for powder within the shell.