Dustproof grinder

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6997792
SERIAL NO

11045363

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A dustproof grinder including: a main body; a rotary shaft vertically mounted in the main body and drivable by the driving unit, a bottom end of the rotary shaft having a plane face facing downward; a bottom cover formed with a central through hole, the bottom cover being disposed at the bottom end of the main body; the plane face of the rotary shaft being larger than the through hole and positioned above top face of the bottom cover; and a sealing member disposed between the plane face and the top face of the bottom cover. A grinding disc is mounted at a bottom end of the rotary shaft for grinding or buffing an object. The bottom cover is sealed with the bottom end of the main body, also, the bottom cover is sealed with the plane face so that the dirt, dusts and chips are prevented from entering the interior of the grinder.

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Patent Owner(s)

Patent OwnerAddress
GISON MACHINERY CO LTDNO 6 ALLEY 105 LANE 68 SEC 2 SINAN RD WURIH DIST TAICHUNG CITY

International Classification(s)

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  • 2005 Application Filing Year
  • B24B Class
  • 617 Applications Filed
  • 349 Patents Issued To-Date
  • 56.57 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances200520062007200820092010201120122013201420152016201720180255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lin, Freddy Taichung, TW 24 105

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Patent Citation Ranking

  • 0 Citation Count
  • B24B Class
  • 0 % this patent is cited more than
  • 19 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges101634117842211201 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7081 - 90100 +0102030405060708090100110120130140150160170180

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