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. 26, 2020
Filed:
Dec. 02, 2016
Trane International Inc., Davidson, NC (US);
Stephen Stewart Hancock, Flint, TX (US);
Trane International Inc., Davidson, NC (US);
Abstract
A heating, ventilation, and/or air conditioning (HVAC) system includes a blower assembly having a blower housing, a motor disposed at least partially within the blower housing, and an impeller comprising a plurality of blades disposed about the impeller that is connected to the motor by a shaft. The blower assembly includes a labyrinth seal that provides a tortuous leakage airflow path between the blower housing and the impeller to substantially reduce the amount of air that escapes from the blower housing between the blower housing and the impeller to provide an increased blower efficiency as compared to traditional blower assemblies.