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:
Mar. 12, 1991
Filed:
Jun. 22, 1989
Applicant:
Inventor:
Carl E Hunt, Davisburg, MI (US);
Assignee:
GTE Valenite Corporation, Troy, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B / ;
U.S. Cl.
CPC ...
408143 ; 188268 ; 279-8 ; 408144 ; 408233 ; 4082 / ;
Abstract
A boring bar has a longitudinal axis, with a steel head section having a cutting insert displaced from the longitudinal axis. In one embodiment, a cemented carbide section is joined directly thereto. In another embodiment, a intermediate section includes a devibrator body. The respective sections are joined by a centrally positioned drawbar threadedly inserted into the head section for maintaining a compressive force at the specifically configured connection between the axially aligned sections.