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:
Dec. 09, 2003
Filed:
May. 15, 2001
Werner Hampe, Marsberg-Helminghausen, DE;
Jürgen Freitag, Marsberg-Bredelar, DE;
Wilhelm Cramer, Brilon-Messinghausen, DE;
Abstract
This invention relates to a multi-cell storage battery including a housing and, enclosing the housing in gas-tight fashion, a housing cover assembly having an upper cover panel and a lower cover panel with a degassing duct between the upper and lower cover panels which encompasses a multiple array of interconnected, mutually matched labyrinth chambers, fluidically links all cells, opens out at a forward end into at least one gas vent, and is closed off by a spark suppressor. To arrive at a storage battery in which adequate degassing is assured under all operating conditions while at the same time any leakage of acid accumulated in the degassing duct is largely prevented even when the internal pressure is high, the invention proposes a design whereby the gas vent is positioned at an essentially perpendicular angle relative to the direction of gas flow through the spark suppressor while in the area between the spark suppressor and the gas vent the degassing duct is provided with a widened section forming a collecting chamber which, when the storage battery is in its normal position, is situated underneath the gas vent.