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US Patent 8067913 Power tool

Patent 8067913 was granted and assigned to Hitachi on November, 2011 by the United States Patent and Trademark Office.

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Patent Citations Received
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US Patent 11973451 Under-speed and closed-loop speed control in a variable-speed power tool
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edited on 12 Mar, 2024
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US Patent 11919137 Control assembly for use in operation of an electric device
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Edits on 28 Nov, 2023
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edited on 28 Nov, 2023
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Patent abstract

The controller determines the presence or absence of operation of the trigger switch according to an ON/OFF state of the main contact of the trigger switch and designating the rotation speed of the motor based on a signal outputted from the speed contact. The controller stops the rotation of the motor, after the trigger switch is activated and the main contact is turned ON and the motor is driven according to a signal outputted from the speed contact, when an OFF state of the main contact is detected, only in the case where a signal value outputted from the speed contact is a predetermined value or less.

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Patent Citations Received
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US Patent 11770088 Electric power tool
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edited on 18 May, 2023
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US Patent 08067913 Power tool US Patent 8067913 Power tool

Infobox
Patent Number
0806791300
Patent Number
806791300
Edits on 27 Apr, 2023
"Entity importer update"
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edited on 27 Apr, 2023
Infobox
Is a
Patent
Patent
0
Current Assignee
Hitachi
Hitachi
0
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
0
Patent Number
080679130
Date of Patent
November 29, 2011
0
Patent Application Number
122338520
Date Filed
September 19, 2008
0
Patent Primary Examiner
‌
Walter Benson
0
Edits on 23 Sep, 2022
"Entity importer update"
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Golden AI
edited on 23 Sep, 2022
Infobox
Is a
Patent
Patent
0
Current Assignee
Hitachi
Hitachi
0
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
0
Patent Number
080679130
Date of Patent
November 29, 2011
0
Patent Application Number
122338520
Date Filed
September 19, 2008
0
Patent Primary Examiner
‌
Walter Benson
0
Edits on 14 Dec, 2021
"Created via: Entity Importer"
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Golden AI
created this topic on 14 Dec, 2021
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 US Patent 08067913 Power tool

Infobox
Is a
Patent
Patent
Current assignee
Hitachi
Hitachi
Patent jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent number
08067913
Date of patent
November 29, 2011
Patent application number
12233852
Date Filed
September 19, 2008
Patent primary examiner
‌
Walter Benson

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