Electric cleaning device

• US 6,460,217 B2
• Filed: 01/12/2001
• Issued: 10/08/2002
• Est. Priority Date: 01/20/2000
• Status: Expired due to Fees

• Current Assignee: Sanyo Electric Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Sanyo Electric Company Limited (Panasonic Holdings Corporation)
• Inventors: Shikano, Hirotaka, Fukushima, Sadao, Yoshida, Jun, Morita, Akihiro
• Primary Examiner(s): MOORE, CHRISTOPHER K
• Application Number:
  US09/759,033
• Publication Number:
  US 20010009050A1
• Time in Patent Office: 634 Days
• Field of Search: 153/46, 154/12
• US Class Current: 15/346
• CPC Class Codes: A47L 5/14 cleaning by blowing-off, also combined with suction cleaning

Abstract

An electric cleaning device circulates exhaust air from an electric blower to a floor intake tool. The exhaust air passes through an exhaust guide, formed as one element, in a main cleaning device unit from the electric blower through a hose to the floor intake tool. The exhaust guide is a resilient unitary resin part with sufficient resilience to permit compression for installation. The springback of the exhaust guide seals the exhaust path against leakage.

Claims

1. A vacuum cleaner comprising:

a blower unit;

a floor intake tool;

a suction path from said blower unit to said floor intake tool to suction air from said floor intake tool to said blower unit;

an exhaust path from said blower unit to said floor intake tool;

said exhaust path including an exhaust portion from said blower unit;

an integral exhaust guide connected at one end to said blower unit to receive exhaust air from said blower unit;

a second end of said exhaust guide connected to said exhaust path;

said exhaust guide has a single first opening connected to said exhaust portion; and

said exhaust guide has a plurality of second openings connected to said exhaust path.

3. An electric cleaning device as recited in claim 1 wherein:

said exhaust guide is flexible; and

a connecting section on said exhaust guide is fitted to said opening and said communicating opening.

2. An electric cleaning device comprising:

a main cleaning device unit;

an electric blower holding chamber in the main unit, said chamber containing an electric blower;

a flexible hose connected to the main unit, said hose having an outer hose section and a spaced apart inner hose section, the inner section providing a suction path, the space between the outer and inner sections providing an exhaust path;

an extension pipe selectively connected to said hose;

a floor intake tool connected to said pipe;

a suction path from said blower to said tool to suction air from said tool to said blower;

integral exhaust guide connected at one end to the blower to receive exhaust air from the blower;

an exhaust path for guiding exhaust from said guide to said hose; and

a second exhaust path from said hose through said pipe to said tool.

4. An electric cleaning device comprising

a main cleaning device unit:

an electric blower unit in said main cleaning device unit;

a flexible hose connected to said main cleaning device;

said hose having an outer hose section and a spaced apart inner hose section, the inner section providing a suction path, the space between the outer and inner sections providing an exhaust path;

an extension pipe selectively connected to said hose;

a floor intake tool connected to said pipe;

a suction path from said blower unit to said tool to suction air from said tool to said blower unit;

an exhaust path from said blower unit to said tool;

the exhaust path including an exhaust portion from said blower unit;

an integral exhaust guide connected at one end to said blower unit to receive exhaust air from said blower unit;

a second end of the exhaust guide connected to said exhaust path; and

a motor case surrounding said blower unit;

a section of said case surrounding said blower unit and said exhaust guide forming an integral structure.