US Patent 7997659 Rotary cutter for tunnel boring machine
Patent 7997659 was granted and assigned to Caterpillar Inc. on August, 2011 by the United States Patent and Trademark Office.
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Edits on 28 Nov, 2023
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Patent abstract
A rotary cutter for a tunnel boring machine or similar machine has a cutter ring mounted to a hub. The hub is mounted on a shaft. A sleeve bearing system is positioned between the hub and the shaft for supporting the hub on the shaft and allowing relative rotation. A duo-cone seal assembly is positioned between the hub and the shaft to seal out contaminants from the sleeve bearing system. An oil gallery with lubricating oil for lubricating the sleeve bearing system is provided in the shaft.
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Patent Inventor Names
Dennis R. Shookman0
Gregory J. Kaufmann0
Robert L. Meyer0
Thomas E. Oertley0
Edits on 16 Jul, 2023
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US Patent 07997659 Rotary cutter for tunnel boring machine US Patent 7997659 Rotary cutter for tunnel boring machine
Infobox
Patent Number
079976590
Patent Number
79976590
Edits on 27 Sep, 2022
Golden AI
Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
079976590
Date of Patent
August 16, 2011
0Patent Application Number
122383720
Date Filed
September 25, 2008
0Patent Primary Examiner
Edits on 8 Dec, 2021
Golden AI
Edits made to:
Infobox (+8 properties)
US Patent 07997659 Rotary cutter for tunnel boring machine
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07997659
Date of patent
August 16, 2011
Patent application number
12238372
Date Filed
September 25, 2008
Patent primary examiner
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