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:
Aug. 10, 2021
Filed:
Mar. 23, 2016
Leone S.p.a., Sesto Fiorentino, IT;
Gabriele Scommegna, Tavarnuzze Impruneta, IT;
Maurizio Dolfi, Florence, IT;
LEONE S.P.A., SESTO FIORENTINO, IT;
Abstract
A fan screw for the expansion of the upper jaw, including two bodies () connected by at least one driving screw () and placed on opposite sides with respect to a sagittal plane (x-x), the longitudinal axis (v-v; k-k) of the at least one expansion screw () being perpendicular to the plane (x-x), each of the bodies () having a lingual side (L, L) and an opposite upper side and being provided with a structure for anchoring it to several teeth of a dental arch destined to be expanded. The longitudinal axis (v-v; k-k) of the at least one driving screw () is at a predetermined distance (h) from the lingual sides (L, L) of bodies (), the distance (h) being measured along a lingual direction (L) parallel to the plane (x-x), such that the distance between the axis (v-v) of the at least one driving screw () and the upper sides of bodies () is greater than the distance between the upper and the lower sides of bodies ().