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. 12, 1991
Filed:
Apr. 09, 1990
David A Evans, Seekonk, MA (US);
The Evans Findings Company, Inc., East Providence, RI (US);
Abstract
A package for an electrical component that generates a gas during operation includes a selectively permeable body that allows the gas generated within the package to escape while preventing the escape of desired fluids from the package and the entrance of undesired fluids into the package. In a double layer capacitor according to the invention, the body may be a polymeric material, such as silicone rubber or polypropylene, through which carbon dioxide permeates relatively rapidly but through which water vapor permeates relatively slowly. A package including a container and an attached cover includes a resilient member disposed adjacent the periphery of the cover for dissipating forces that might be applied to an electrically insulating seal in the cover through which an electrical terminal passes.