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:
Sep. 09, 1986
Filed:
Jul. 08, 1985
Peter T Swartzbaugh, Toledo, OH (US);
Owens-Illinois, Inc., Toledo, OH (US);
Abstract
A molded thermoplastic linerless or self-sealing closure for use with a small container having a thin and accurately formed finish, such as a disposable glass or plastic culture tube. The closure has a top panel and an integrally formed depending annular skirt, and the annular skirt has an inwardly projecting helical thread to permit the closure to be screwed onto and off of a container with a threaded finish. The closure top panel has a thick central portion which is depressed below the top of the closure skirt and a thin annular portion that extends radially outwardly and upwardly from the central portion to the top of the closure skirt. The underside of the closure engages the rim of the container in a pocket formed by the annular portion and the annular skirt, and seals partially on the top of the rim and partially on the inside of it, with the thinness of the annular portion contributing to the deformability of the closure to help provide the required seal with the container.