The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 21, 2020
Filed:
Mar. 09, 2018
The Robbins Company, Solon, OH (US);
Carl E. Lenaburg, Tacoma, WA (US);
The Robbins Company, Solon, OH (US);
Abstract
A housing mount assembly for a TBM disc cutter assembly having a shaft and cutter wheel assembly includes a housing half with a body and opposite edge portions extending away from the body. A removable seat block is fixed to the housing half in a space between the edge portions, and is configured to transmit forces received from the cutter shaft to the housing half in shear. A first face of the seat block is pressed against a face of one of the edge portions, and second face is pressed against the housing half body. The seat block may be preloaded against the housing half with first and second pluralities of bolts arranged perpendicularly. The seat block is configured to be removable in the field without removing the housing half from the TBM. The seat block may be hardened to a Rockwell C hardness in the range of Rc 58 to 60.