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. 03, 1981
Filed:
Jan. 31, 1980
Brian Lynch, Norcross, GA (US);
Western Electric Company, Inc., New York, NY (US);
Abstract
A closure which is particularly useful to seal a container of material that is used in a process for the manufacture of preforms from which fiber lightguides are drawn includes an annular seal having a tapered opening therethrough. The annular seal is supported in engagement with an outwardly facing surface of a flared neck of a container by a shelf of an annular retainer which is held about the neck by an adjustable clamp which is disposed about the retainer. The neck opens to an external surface of the container which is covered by a stepped cap made of plastic material that is clamped in engagement with a ring seal positioned in a groove formed in the external surface by an outer clamp plate. A smaller diameter portion of the cap is received in a centrally disposed opening of the outer clamp plate which is connected to the retainer by a plurality of circumferentially disposed fasteners. Advantageously, the outer clamp plate, cap and ring seal can be removed from the container to provide access for cleaning, for example, without removing the annular seal, retainer and adjustable clamp.