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:
May. 23, 2006
Filed:
Feb. 11, 2003
Bimal Kumar Chaterjee, Jackson, TN (US);
Alan Phillips, Jackson, TN (US);
John Robert Kriaski, Jackson, TN (US);
Daniel Paxton Wall, Humboldt, TN (US);
Bimal Kumar Chaterjee, Jackson, TN (US);
Alan Phillips, Jackson, TN (US);
John Robert Kriaski, Jackson, TN (US);
Daniel Paxton Wall, Humboldt, TN (US);
Portar-Cable/Delta, Jackson, TN (US);
Abstract
A process for manufacturing highly wear and fatigue resistant steel components for power tools includes melting and mixing together a readily available base steel and alloying elements. The molten steel is cast into near-net-shape in an investment casting process. This method is cost competitive with forming the same component from steel with fewer alloying elements. In particular, clutch plates for a drill/driver or screw gun can be formed in this manner from a steel containing relatively large amounts of nickel and chromium, such as SAE 9310 steel, or from a steel containing a relatively large total amount of molybdenum and tungsten, such as AISI M2 steel.