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:
Nov. 20, 2001
Filed:
Mar. 23, 2000
Bert P. Erdel, Belle Mead, NJ (US);
Malpal, Inc., Piscataway, NJ (US);
Abstract
A method of machining a differential housing defining a cavity having opposed concave interior surfaces from a workpiece having first and second transverse bores defined therein. A tool having a retractable cutting insert is mounted on a spindle of a machining center, the cutting insert being pivotably mounted within the tool to rotate about a pivot axis and having distal and proximal cutting edges at opposite ends thereof. The tool is inserted into the first bore defined in the workpiece while the cutting insert is retained in a retracted position within the tool. A force is applied to the cutting insert so as to overcome a bias urging the cutting insert into the retracted position, the force being sufficient to urge the distal and proximal cutting edges into contact with corresponding interior portions of the work piece. The tool is rotated while the force is applied so that the cutting edges continuously remove material from the workpiece until they reach an outer limit of pivoting, thereby defining the concave interior surfaces.