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Patent Searching and Data


Title:
METHOD FOR TAPERING THE BRUSH OF A TOOTHBRUSH BY A MECHANICAL METHOD
Document Type and Number:
WIPO Patent Application WO/2010/050671
Kind Code:
A3
Abstract:
The present invention relates to a method for tapering the brush of a toothbrush using grinding drums which have protrusions (11) with a height of 1.5 to 7.0mm, and which rotate in the vertical and horizontal directions, said method comprising a step of connecting the grinding drums in parallel, such that the grinding drums are arranged in a sequence wherein the heights of the protrusions (11) of each of the grinding drums are gradually decreased, and a step of enabling the toothbrush with a non-tapered brush to pass through each of the grinding drums in series such that the brush can be ground. The method of the present invention produces highly tapered brushes having a tapered length of 5mm or longer and an end thickness of 0.02mm or less even without immersing brushes into chemicals, and prevents thermal deformations which may otherwise occur in the tapering process performed by a mechanical method.

Inventors:
KWON YOUNG-JUN (KR)
KWON SUNG-WOOK (KR)
KWON SUNG-HWAN (KR)
Application Number:
PCT/KR2009/004864
Publication Date:
July 08, 2010
Filing Date:
August 31, 2009
Export Citation:
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Assignee:
BEST WHASUNG CO LTD (KR)
KWON YOUNG-JUN (KR)
KWON SUNG-WOOK (KR)
KWON SUNG-HWAN (KR)
International Classes:
A46D1/10
Foreign References:
KR100637380B12006-10-23
KR100666457B12007-01-09
KR19990070723A1999-09-15
US5893612A1999-04-13
US20040090108A12004-05-13
Other References:
See also references of EP 2353433A4
Attorney, Agent or Firm:
PARK, Hee-seop (Songchon building642-9, Yeoksam-dong,Gangnam-ku, Seoul 135-080, KR)
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