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:
May. 25, 1982
Filed:
Aug. 15, 1980
Gail F Duncan, Dayton, OH (US);
Emerson F Browning, Dayton, OH (US);
Karl Rotterman, Dayton, OH (US);
Tri-Made Products, Inc., Dayton, OH (US);
Abstract
A combined caulking tube plunger and enclosure assembly is disclosed which includes a single piece of drawn metal in generally a cup-shaped configuration including a bottom wall, a circular or annular side wall which forms a close fit with the inside diameter of a caulking tube and which provides guidance of the plunger portion through the caulking tube, and an outer rim which is adapted to be rolled over the outer end of a caulking tube to form a closure and seal therewith. A circumferential break-away score or dart is formed in the side wall axially inwardly of the rim which causes the major portion of the side wall and the bottom wall, forming a plunger, to be broken away from the rim upon the application of force by the ram of a caulking gun thus to separate the plunger portion from the rim portion.