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:
Jun. 25, 2019
Filed:
May. 11, 2011
Ken Partington, Inglewhite, GB;
Liam Warburton, Manchester, GB;
Ken Partington, Inglewhite, GB;
Liam Warburton, Manchester, GB;
EH EUROPE GMBH, Zurich, CH;
Abstract
A lead-acid battery comprises a flame arrestor plug () for controlled venting of gases from the battery through the vent hole (), wherein the flame arrestor plug has a valve element () for controlling the venting of gas from the vent hole and a plug portion () which is adjacent to or in contact with the battery casing () around the vent hole and which, together with the battery casing, defines a flow path through which gases released through the valve element can escape from the battery, at least a portion of the flow path being of sufficiently narrow cross-section to prevent propagation of a flame along the flow path.