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. 23, 1978
Filed:
Apr. 13, 1977
Albert L Fox, University Heights, OH (US);
Jeffrey S Leeson, South Euclid, OH (US);
Joseph F Szabo, North Olmsted, OH (US);
ESB Incorporated, Philadelphia, PA (US);
Abstract
A vent system for an electric storage battery having a flame arresting capability to minimize the possibility of battery explosion from ignition of explosive gases flowing from the vent plug. The vent system includes a vent plug design having an internal restricted passage and a flange extending around the top of the vent plug which cooperates with the upper surface of the battery cover to create an explosion chamber, so that in the event the explosive gases being vented are ignited, the resulting controlled explosion extinguishes the flame. One embodiment is provided wherein the top surface of the plug is flush with the top of the battery cover. A modified vent well is required for this embodiment, whereby the vent well in the battery cover has a recessed shoulder to receive the flange portion of the vent plug. A second embodiment is also provided wherein the vent plug can be used on conventional battery cover designs, but is not flush with the top of the battery cover.