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:
Jan. 03, 2017
Filed:
Jul. 09, 2015
Straumann Holding Ag, Basel, CH;
Stephane Courvoisier, Colombier, CH;
Straumann Holding AG, Basel, CH;
Abstract
Fastening system including a screw component () and a seating component (). The screw component has a shaft () extending along a longitudinal axis () and having a maximum radius R, said shaft comprising a threaded section (), said screw component further including, at one end of the screw shaft, a head (), the head comprising a bottom end () having a larger maximum radius Rthan the screw shaft such that an exposed underside () of the screw head extends radially beyond the maximum radius of the screw shaft. The seating component includes a screw channel () having a planar screw seat () having a minimum radius Rwhich is equal to or greater than R. The bottom end of the screw head has an annular contact surface for abutment against said screw seat, the contact surface being formed by the distal end of at least one downwardly extending protrusion () on the underside of the screw head, wherein the annular contact surface has a minimum radius greater than the minimum radius of the screw seat.