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:
Dec. 03, 1980
James S Hardigg, Baptist Hill, MA (US);
Edward W Turner, Deerfield, MA (US);
Hardigg Industries, Inc., South Deerfield, MA (US);
Abstract
The present invention comprises a battery cover that provides a sliding seal about the terminal posts of battery elements within a battery jar so that axial movement between the cover and such posts can occur when welding battery covers in place onto battery jars or during use of the battery to absorb any axial motion of the terminal posts due to plate growth. Each opening is provided with upper and lower seals which together define a chamber between them and the outer surface of the terminal post. This chamber is connected by means of a passageway to an inlet port so that following insertion of the terminal post through the openings and through the upper and lower seals, sealant material can be inserted into that annular chamber. A complete seal will be provided about the periphery of the terminal post lying between the two seals that will allow relative movement between the cover and the terminal post. Following completion of the injection of sealant material an acid and heat resistant washer may be placed over the terminal post to protect the top of the seal area during fusion of battery connectors to the posts.