Radial vane for tooth brush, tooth brush using the same, and...

Details Radial vane for tooth brush, tooth brush using the same, and... Radial vane for tooth brush, tooth brush using the same, and...

2011-08-09

2011-08-09

Nguyen, Dung Van (Department: 3723)

Brushing, scrubbing, and general cleaning

Implements

Brush or broom

C015S022100

Reexamination Certificate

active

07992246

ABSTRACT:
In a 360-degree toothbrush in which a brush head is formed by superposing disk-shaped radial vanes1in an axial direction, the arranging pitch of the radial vanes1is increased so as to make the bristle density appropriate. Spacers are not used between the radial vanes1so as to increase the productivity, and to improve the hygiene condition. In order to realize these aspects, an annular protrusion or protrusions3are formed on one or both of the surfaces of an annular weld portion2of the radial vane1. The annular protrusion3is formed at the same time when forming the weld portion2in a welding step in which the bristle bundle is opened radially and the center part is welded so that the radial vane1is manufactured.

REFERENCES:
patent: 3258802 (1966-07-01), Rodriguez
patent: 5035020 (1991-07-01), Winiewski
patent: 6325626 (2001-12-01), Blass
patent: 6471300 (2002-10-01), Tomiyama
patent: 6477729 (2002-11-01), Ben-Ari
patent: 10-337295 (1998-12-01), None
patent: 2003-88424 (2003-03-01), None
patent: 2003-219911 (2003-08-01), None
patent: 2003-319834 (2003-11-01), None
patent: 3646118 (2005-05-01), None
patent: 02/07563 (2002-01-01), None

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