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:
Feb. 20, 1979
Filed:
May. 11, 1977
Applicant:
Inventor:
Robert P Fischer, Lancaster, PA (US);
Assignee:
Kerr Glass Manufacturing Corporation, Lancaster, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; B29C / ;
U.S. Cl.
CPC ...
264268 ; 264331 ;
Abstract
A method for forming a gasket for a container closure. In the method, a dispersion of a finely powdered plastic resin in a fluid carrier is prepared and the viscosity of the dispersion is adjusted to provide desirable flow characteristics. The resin is not associated in the dispersion with a plasticizer. An annulus of the dispersion is applied to a container closure. The applied annulus of the dispersion is then subjected to an elevated temperature for a sufficient time to remove the carrier and to fuse the thermoplastic resin particles which are united to form a resilent seal.