Draft inducer blower with fastener retention
US7182574B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 5, 2004 |
| Grant date | Feb 27, 2007 |
| Priority date | — |
| Expiry date | Mar 31, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/1608
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A draft inducer blower for high efficiency furnaces, including a blower housing having a housing body and housing cover. The housing body includes a plurality of mounting lugs spaced around its outer periphery, through which fasteners are inserted to secure the blower housing to corresponding mounting holes in a furnace wall. The mounting lugs each include a slot-like opening having a web of material therein and, in each mounting lug, a fastener is threaded through an opening in the web to temporarily retain the fastener in position within its associated mounting lug. In this manner, a blower housing may be shipped to a furnace manufacturer or other point of installation with the fasteners temporarily retained within their associated mounting lugs. During installation, after the mounting lugs of the blower housing are aligned with the mounting holes of the furnace wall, a suitable tool is used to thread the fasteners through the web of material in the mounting lugs and into the mounting holes to secure the blower housing to the furnace wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.