Maintenance appartus and a method for performing maintenance on grinding discs

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United States of America Patent

PATENT NO 9770719
SERIAL NO

15323783

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An apparatus and a method for performing maintenance on grinding discs are disclosed. The apparatus can be positioned below the housing of a vertical grinding mill and attached to the housing in order to provide temporary support for grinding discs when the grinding discs are removed from the housing. The apparatus can be rotated so that it is in a longitudinal position when the grinding discs are within the housing.

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Patent Owner(s)

Patent OwnerAddress
FLSMIDTH A/S2500 VALBY

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Shaw, Brian Midvale, US 19 156
Shiba, Steve Midvale, US 1 0
Stark, Craig Midvale, US 2 0

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Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Mar 26, 2021
7.5 Year Payment $3600.00 $1800.00 $900.00 Mar 26, 2025
11.5 Year Payment $7400.00 $3700.00 $1850.00 Mar 26, 2029
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00