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. 16, 2026
Filed:
Jun. 20, 2024
Harbor Freight Tools Usa, Inc., Calabasas, CA (US);
Andrew Frances Mcgraw, Newbury Park, CA (US);
Harbor Freight Tools USA, Inc., Calabasas, CA (US);
Abstract
An exhaust gas cooling system for cooling catalyzed combustion exhaust gas in small power equipment is disclosed. The system includes a cooling air guide and a mixing chamber. The mixing chamber includes an intake end, an exhaust end, and at least one cooling inlet. A short length exhaust, including a catalytic converter, is operably connected to the intake end of the mixing chamber, and is operable to direct catalyzed combustion exhaust gas through the intake end into the mixing chamber. The cooling air guide is operably connected to the at least one cooling inlet, and is operable to direct cooling air through the at least one cooling inlet into the mixing chamber. The mixing chamber is operable to facilitate mixing the catalyzed combustion exhaust gas and cooling air to reduce a peak temperature of a combined exhaust gas.