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:
Aug. 30, 1994
Filed:
Jun. 30, 1993
Rudy S Chou, Liverpool, NY (US);
Michael J Larsen, Danville, IN (US);
Rengasamy Ramshankar, Liverpool, NY (US);
Larry D Rieke, Zionsville, IN (US);
Timothy J Waterman, Carmel, IN (US);
Carrier Corporation, Syracuse, NY (US);
Abstract
An inducer (40) for causing a flow of combustion air into and gases of combustion through and out of a furnace (10) of the condensing type. The inducer is intended for use, without modification of its design or size, in a series of furnaces of the same basic design but having different heating capacities and therefore different requirements for flow through the induction flow path. The furnace design is such that a given furnace is capable of operation so as to provide a flow of air to be heated that is either up, down or horizontal with only minor field modification on installation. The inducer has two discharges (43), only one of which is used in a given installation. The other discharge is blocked with a plug (61) of special configuration that can vary the output of the inducer to ensure optimum flow of combustion air into and gases of combustion through and out of the furnace. The inducer configuration is such that, in every possible orientation of the furnace installation, at least one of its two drains (47) is at the low point of the inducer housing ( 41) so that all condensate that collects in the housing can flow to a lowpoint drain regardless of the orientation of the furnace.