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. 19, 1978
Filed:
Jan. 10, 1977
Applicant:
Inventor:
Harvey Philip Jeal, Stevenage, GB;
Assignee:
Aerpat A.G., Zug, CH;
Primary Examiner:
Int. Cl.
CPC ...
F16B / ;
U.S. Cl.
CPC ...
85 41 ; 408228 ;
Abstract
A drill embodied in a self-drilling and self-tapping screw has a drill-point comprising a first sharp-pointed tip on the drill axis and a second sharp-pointed tip offset transversely of and axially behind the first tip. First and second cutting edges are inclined similarly to the axis on opposite sides thereof and have the first and second tips respectively at their respective leading ends.