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:
Jul. 10, 2012
Filed:
Apr. 22, 2009
Jay Christopher Rozzi, Hanover, NH (US);
John Kendall Sanders, Hartland, VT (US);
Christian Henry Passow, Etna, NH (US);
Michael Phillip Day, Cornish, NH (US);
Everett Edgar Archibald, Jr., Windsor, VT (US);
Jay Christopher Rozzi, Hanover, NH (US);
John Kendall Sanders, Hartland, VT (US);
Christian Henry Passow, Etna, NH (US);
Michael Phillip Day, Cornish, NH (US);
Everett Edgar Archibald, Jr., Windsor, VT (US);
Creare Incorporated, Hanover, NH (US);
Abstract
An indirect cooling system for a rotating cutting tool uses a cryogenic coolant that is delivered to a cavity formed on the back surface of the cutting element, providing cooling near the cutting edge of the element. Because the total flow rate of the working fluid is low (less than 0.08 Liters/min/cutting edge), the fluid can be safely vented to atmosphere from the cavity, and as a result, no specialized coolant recovery or ventilation equipment is needed. The cavity may be formed with fins to enhance the heat transfer between the cutting element and the coolant, and coolant may additionally be sprayed directly onto the exterior surface of the element to cool the tool-chip interface. The indirect cooling system may be used for hard to machine metals and composites, as well as the machining of conventional materials without the use of traditional cutting fluids.