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:
Mar. 22, 2016
Filed:
Dec. 20, 2012
Applicant:
Kennametal Inc., Latrobe, PA (US);
Inventors:
Josef K. Herud, Herzogenaurach, DE;
Ruy Frota de Souza Filho, Latrobe, PA (US);
Assignee:
KENNAMETAL INC., Latrobe, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23B 31/30 (2006.01); B23B 31/12 (2006.01); B23B 31/117 (2006.01);
U.S. Cl.
CPC ...
B23B 31/12 (2013.01); B23B 31/305 (2013.01); B23B 31/1176 (2013.01); B23B 31/1178 (2013.01); B23B 2240/08 (2013.01); B23B 2240/11 (2013.01); B23B 2260/126 (2013.01); Y10T 279/1029 (2015.01); Y10T 279/12 (2015.01); Y10T 279/1216 (2015.01); Y10T 279/1249 (2015.01);
Abstract
The invention relates to a hydraulic expansion chuck with a basic body, with an expansion bush which is received in the basic body and defines a reception space for a tool to be chucked, and with a pressure chamber which is delimited between the expansion bush and the basic body, at least one solder region being provided, in which the expansion bush is soldered to the basic body, wherein, between the pressure chamber and the solder region, a seal is provided which is formed by an at least essentially fluid-tight bearing contact of the expansion bush against the basic body.