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:
Oct. 28, 1986
Filed:
May. 11, 1984
Applicant:
Inventor:
James H Campbell, Tempe, AZ (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23C / ;
U.S. Cl.
CPC ...
409234 ; 279 47 ; 408139 ;
Abstract
A bit holder for automatic printed circuit board drilling machines, the bit holder incorporating a snap ring as a retaining mechanism that releases under abnormally high impact conditions to prevent damage to the bit holder parts.