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:
Sep. 01, 2020
Filed:
Dec. 11, 2018
David P. Jackson, Saugus, CA (US);
Mackenzie A. Jackson, Saugus, CA (US);
John J. Lee, Santa Clarita, CA (US);
David P. Jackson, Saugus, CA (US);
Mackenzie A. Jackson, Saugus, CA (US);
John J. Lee, Santa Clarita, CA (US);
HITACHI HIGH TECH CORPORATION, Tokyo, JP;
Abstract
This application presents a method and apparatus for cooling a through-ported cutting tool with a source of liquid COwith a compressed air line with a compressed air inlet and multiple COinjection capillary segments; the capillary segments interconnect to the same source of liquid COand can have high pressure valves and throttles; the throttles have different sizes; a first capillary ends near the cutting tool; the second capillary ends near the compressed air inlet. Using a particular sequence of opening or closing the valves to the liquid COto the capillaries, mixing with the compressed air provides and recycling the residual CO, this invention provides for uniform and controlled cooling of the cutting tool within a certain temperature range.