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:
Mar. 11, 2008
Filed:
Jul. 12, 2005
Alexander Groehl, Dolgesheim, DE;
Alexander Groehl, Dolgesheim, DE;
Ceramat, S.Coop., Asteasu (Gipuzkoa), ES;
Abstract
The gas-fired heating apparatus, especially a water heater, has a combustion chamber (); an atmospheric gas burner () within the combustion chamber (); a combustion gas/air supply system () having an intake device () for combustion gas and primary air to be mixed with the combustion gas, which is arranged outside of the combustion chamber, and an oscillation-damping air supply chamber () provided with at least one air inlet (), which is connected upstream to the intake device () and is constructed as a Helmholtz resonator to reduce noise and stabilize combustion. To provide sufficient primary air under adverse spatial conditions the air supply chamber () has an exterior wall (') and a pattern () of perforations in the exterior wall, which are formed as additional air inlets for additional supply of the primary air.