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. 04, 2008
Filed:
Feb. 18, 2003
Anton Gerhard, Nürnberg, DE;
Anton Gerhard, Nürnberg, DE;
Other;
Abstract
A thread-cutting screw () serves for being screwed into the bore-hole wall () of a bore-hole (). It comprises a substantially cylindrical core () of metal which has a central longitudinal axis (), a thread () forming one piece with the core (), and at least one cutting element (), disposed within the thread (), for cutting engagement with the bore-hole wall. The core () consists of a metal of a carbon content between 0 and 0.5 percent by weight. The at least one cutting element () is fixedly connected with the core (), constituting a welded structure of a metal with a carbon content greater than 0.8 percent by weight. Being safely connected to the core (), the cutting elements () offer efficient cutting operation, with any risk of brittle fracture of the screw () being precluded.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile