Invention Grant
- Patent Title: Nozzle construction for a cleaning head
- Patent Title (中): 用于清洁头的喷嘴结构
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Application No.: US12720371Application Date: 2010-03-09
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Publication No.: US08561257B2Publication Date: 2013-10-22
- Inventor: Wayne Ernest Conrad
- Applicant: Wayne Ernest Conrad
- Applicant Address: BS Nassau
- Assignee: G.B.D. Corp.
- Current Assignee: G.B.D. Corp.
- Current Assignee Address: BS Nassau
- Agency: Bereskin & Parr LLP S.E.N.C.R.L., s.r.l.
- Agent Philip C. Mendes da Costa
- Priority: CA2658008 20090311
- Main IPC: A47L5/24
- IPC: A47L5/24 ; A47L9/02

Abstract:
A surface cleaning head for a vacuum cleaner comprises an open sided air flow passage upstream of an n enclosed air flow passage extending from an opening in the surface cleaning head to an air outlet. The open sided airflow chamber comprising an upper wall and a rear depending wall extending downwardly from the upper wall. The rear depending wall has a lower end that is positioned above the lower end of wheels. The opening is provided in a rear half of the upper wall of the air flow chamber forwardly of the rear depending wall and inwardly of the sides.
Public/Granted literature
- US20100229322A1 NOZZLE CONSTRUCTION FOR A CLEANING HEAD Public/Granted day:2010-09-16
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