Invention Grant
- Patent Title: Oval filter cage and vacuum cleaner
- Patent Title (中): 椭圆过滤笼和吸尘器
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Application No.: US11627467Application Date: 2007-01-26
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Publication No.: US07971314B2Publication Date: 2011-07-05
- Inventor: Robert Hollis
- Applicant: Robert Hollis
- Applicant Address: US MO St. Louis
- Assignee: Emerson Electric Co.
- Current Assignee: Emerson Electric Co.
- Current Assignee Address: US MO St. Louis
- Agency: Locke Lord Bissell & Liddell LLP
- Main IPC: A47L9/10
- IPC: A47L9/10

Abstract:
The present disclosure provides a filter cage having an improved flow path suitable even for restricted flow regions of a float container in the cage. The filter cage departs from generally accepted structural considerations and provides flow paths to one or more sides of the cage outside the restricted flow regions of the float container, but within the cross-sectional area of the cage structure. In one exemplary embodiment, the cage is oval-shaped with a cross-sectional area defined by a major and minor axis. A restricted flow region, such as the float container, encompasses a cross-sectional area corresponding in size to a cross-sectional area defined by the minor axis of the oval-shaped cage. The remaining portion of the cage cross-sectional areas provides one or more flow paths outward from the float container in the direction of the major axis of the cage.
Public/Granted literature
- US20080127449A1 OVAL FILTER CAGE AND VACUUM CLEANER Public/Granted day:2008-06-05
Information query