Magnetic clamp device

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United States of America Patent

PATENT NO 11426901
APP PUB NO 20210046673A1
SERIAL NO

16976489

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Abstract

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Provided is a magnetic clamp device that is capable of more finely measuring an induced voltage generated in a coil and selecting countermeasures against reductions in magnetization force. Multiple magnet blocks 11, 21 each comprising an invertible magnet 18, the polarity of which can be inverted, and non-invertible magnet 15, are positioned on a surface of a plate PL composed of magnetic body magnetically clamping a mold M1, M2 when in a magnetized state. The magnetic flux traversing the invertible magnet 18; and a control device 33 that determines whether or not there has been a polarity inversion in the induced voltage detected from the coil 31, and if there has been a polarity inversion, warns that the adhesion of the molds M1, M2 has decreased.

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Patent Owner(s)

Patent OwnerAddress
KOSMEK LTD2-1-5 MUROTANI NISHI-KU KOBE-SHI HYOGO 6512241 ?6512241

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Akamatsu, Hiroshi Kobe, JP 69 763
Murata, Shotaro Akashi, JP 5 13
Oda, Ikkyu Kobe, JP 1 2
Yoshida, Masakazu Kobe, JP 68 911

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