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:
Mar. 07, 1978
Filed:
Jun. 21, 1976
Dick T van Manen, Canandaigua, NY (US);
Voplex Corporation, Pittsford, NY (US);
Abstract
A cylinder, such as the barrel of a caulking cartridge, interlocks with an internal member, such as the closure plunger for the caulker, by means of two to four cuts through the cylinder wall evenly spaced from the end of the cylinder to form catches from the segments of the wall between each of the cuts in the end of the cylinder. The catches are longer circumferentially of the wall than their width from the cut to the end of the cylinder, and they are deformed inward from the locus of the cylindrical wall toward a chord orientation. The member has a body fitting the inside of the cylinder and slidable past the catches, and the body is seated inside the cylinder so the catches are disposed between the body and the end of the cylinder to interlock with the body to prevent its movement out of the end of the cylinder. The cuts and catches can be formed either before or after the member is seated in the cylinder, and the inward deformation of the catches to insure an interlock can be accomplished by the way the cuts are formed, or by an interference fit between the member and the cylinder, or both.