DEVICE FOR INDICATING AMOUNT OF COLLECTED DUST, AND ELECTRIC CLEANER WITH SAME

Title:

DEVICE FOR INDICATING AMOUNT OF COLLECTED DUST, AND ELECTRIC CLEANER WITH SAME

Document Type and Number:

WIPO Patent Application WO/2012/042789

Kind Code:

A1

Abstract:

A device (16) for indicating the amount of collected dust, the device (16) having a pointer tube, at least a part of which consists of a transparent material. The pointer tube is provided with a first end section to which a first pressure is applied and also with a second end section to which a second pressure is applied. A pointer is provided within the pointer tube, and the pointer is displaced by the difference between the first pressure which is applied to the first end section and the second pressure which is applied to the second end section. Also, a pointer spring is provided within the pointer tube, and the pointer spring presses the pointer to either the first pressure or the second pressure which is higher than the other.

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Inventors:

IWASA TOORU

Application Number:

PCT/JP2011/005297

Publication Date:

April 05, 2012

Filing Date:

September 21, 2011

Export Citation:

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Assignee:

PANASONIC CORP (JP)
IWASA TOORU

International Classes:

A47L9/19

Foreign References:

JPS5283371U	1977-06-21
JPS5916548U	1984-02-01
JPH08196488A	1996-08-06
JPS55167352U	1980-12-02
JPH01277526A	1989-11-08

Other References: