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. 21, 1978
Filed:
Jun. 04, 1975
Anthony Sabatino, Burnsville, MN (US);
Purushothama Rao, Burnsville, MN (US);
Gould Inc., Rolling Meadows, IL (US);
Abstract
A method of substantially sealing a lead-acid storage battery, capable of activation by the addition of electrolyte or water after storage, is provided which prevents excessive internal pressure build-up during the storage. In one embodiment, the substantial sealing is provided by a vent seal which can be formed with surfaces duplicating the diameter of the cell vent collar so that a conventional vent cap can be fitted and retained in place, substantially in the final operating position. When the substantial sealing is provided by means other than the vent seal, the seal, without the vent feature, serves to allow positioning of the normal battery vent caps in substantially their final operational positions. In the preferred embodiment, the vent seal includes a tear tab so that if accidentally replaced after removal and activation of the battery and partial separation of the tear tab, adequate venting of the gases generated within the battery such as would occur during charging is provided.