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. 18, 2021
Filed:
Feb. 28, 2018
Robit Oyj, Lempäälä, FI;
Pasi Korte, Lempäälä, FI;
Antti Leino, Ylöjärvi, FI;
ROBIT OYJ, Lempäälä, FI;
Abstract
A drill bit, drill bit assembly and related methods of manufacture as disclosed involve a head portion having a circumference and a face surface, and a shank portion extending longitudinally from a side of the head portion opposite to the face surface. A central flushing channel extends longitudinally through the shank portion and a distance within the head portion, and a lateral flushing channel extends from the central flushing channel to the circumference of the head portion. A first portion of the lateral flushing channel is inclined, in a flushing fluid flowing direction, towards the face surface with respect to said second portion, and correspondingly, a second portion is inclined, in a flushing fluid flowing direction, towards the shank portion.