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:
Dec. 14, 2021
Filed:
Oct. 16, 2019
Sumitomo Electric Tool Net, Inc., Osaka, JP;
Sumitomo Electric Hardmetal Corp., Itami, JP;
Jun Okamoto, Osaka, JP;
Futoshi Takeshita, Osaka, JP;
Kyosuke Kai, Kashiba, JP;
Katsutoshi Fukuda, Kashiba, JP;
Masashi Yamada, Itami, JP;
Sumitomo Electric Tool Net, Inc., Osaka, JP;
SUMITOMO ELECTRIC HARDMETAL CORP., Itami, JP;
Abstract
An oil hole reamer includes an oil passage extending inside a tool main body along an axis of the tool main body, and an oil hole extending radially outward from the oil passage to an outer circumference of the tool main body. An oil outlet of the oil hole is formed to be open toward a position corresponding to a corner at which a tip cutting edge intersects an outer-circumference cutting edge and to cause at least part of the oil outlet to be open to the outer-circumference flank face.