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. 25, 2026
Filed:
Jan. 30, 2024
The Swatch Group Research and Development Ltd, Marin, CH;
Paulo Bravo, Marin-Epagnier, CH;
Andres Cabezas Jurin, Yverdon-les-Bains, CH;
The Swatch Group Research and Development Ltd, Marin, CH;
Abstract
A device () for autonomous adjustment of the active length of a spiral (), for oscillators () of the balance-spiral type, comprising a cock () mounted on a plate () of a horological movement () and in which a balance shaft pivots, the spiral () including an inner end secured to the balance shaft and an outer end secured to a balance spring stud () fastened to a balance spring stud holder (), the balance spring stud holder () being pivotably mounted on the cock () concentrically to the balance shaft, and means for modifying the active length of the spiral ().