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:
Jul. 19, 1977
Filed:
Mar. 31, 1975
Anthony Sabatino, St. Paul, MN (US);
Gould Inc., Rolling Meadows, IL (US);
Abstract
A maintenance free storage battery has a plurality of alternately positive and negative plates disposed within an electrolyte in a battery container, with the plates resting on the bottom of the container. A battery separator material is disposed between each pair of adjacent plates with the bottom of the separator material forming openings to permit access of a bonding material to the lower edges of the plates. A bonding material adhered to both the bottom wall of the battery container and the lower edges of the plates extends through the bottom openings formed by the separator material to provide vibration resistance, with the bonding material also sealing the bottom openings to prevent the treeing of active material between positive and negative plates at the bottom of the container. In one embodiment the separator material is in the form of envelopes around alternate plates with each envelope being sealed along the vertical edges of the plate and having slots along the lower edge of the plate to form the bottom openings to permit access of the bonding material to the lower portions of the plates inside the envelopes. As an alternative, the separator material may be in the form of open-bottomed sleeves. When the plates and separators are first inserted into the battery container, the bonding material is in a liquid state so that the lower edges of the plates and the separators are submerged in the liquid which flows through the openings and into contact with the plates. The bonding material is then solidified to seal the openings.