Invention Grant
- Patent Title: Central vacuum cleaning system battery housing and handle
- Patent Title (中): 中央真空清洁系统电池外壳和手柄
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Application No.: US11321058Application Date: 2005-12-30
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Publication No.: US07765641B2Publication Date: 2010-08-03
- Inventor: J. Vern Cunningham
- Applicant: J. Vern Cunningham
- Applicant Address: CA Aurora
- Assignee: Cube Investments Limited
- Current Assignee: Cube Investments Limited
- Current Assignee Address: CA Aurora
- Agency: Dowell & Dowell, P.C.
- Main IPC: A47L9/32
- IPC: A47L9/32

Abstract:
A central vacuum cleaning system hose handle uses a battery, and has a battery compartment and a battery housing. Battery housing is interchangeable with power plug housing. When housing is drawer then drawer and handle have slide mechanism on which drawer extends in and out. First stop limits depth drawer can slide in. Second stop limits depth drawer can extend out. External access prevented when drawer extended to first stop, permitted when drawer extended to second stop. Releasable locking mechanism inhibits drawer from extending out when handle in use. Crib releasably retains battery. Spring electrical contacts at opposing ends of crib. Crib generally formed to profile of battery. Drawer oriented generally parallel to longitudinal wand adapter axis of handle, crib opening away from axis. Alternatively, housing has body with internal chamber to receive battery and an opening to provide access through an aperture in the handle to the chamber.
Public/Granted literature
- US20070151073A1 Central vacuum cleaning system battery housing and handle Public/Granted day:2007-07-05
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