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:
Apr. 21, 1992
Filed:
Aug. 06, 1991
Lance J Evens, Carrollton, TX (US);
Lennox Industries Inc., Carrollton, TX (US);
Abstract
The present improvement is forced air furnaces comprises structure having redisposition of the vestibule panel of a forced air furnace from a location between the flue collector box and the circulating air flow to a location between the inducer motor and the induced draft fan housing. Advantages over prior art structures obtained by such forced air furnace structure having the novel disposition and location of the vestibule panel of the present invention is that the induced draft housing and the flue collector box are then located within the heated and enclosed circulating air flow chamber. One primary advantage of this structure is a significant decrease in noise emitted by the induced draft fan housing, and thus reduction of noise from the forced air furnace as a whole. Moreover, loss of heat from the induced draft housing and the flue collector box are prevented, while more beneficially disposing the inducer motor within the cooler environment of the vestibule area.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile