Frequency regulation of a timepiece resonator via action on the active length of a balance spring
US-9354607-B2 · May 31, 2016 · US
Polygonal balance spring for a resonator for a timepiece
US9268307B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9268307-B2 |
| Application number | US-201414553298-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 25, 2014 |
| Priority date | Dec 16, 2013 |
| Publication date | Feb 23, 2016 |
| Grant date | Feb 23, 2016 |
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Abstract
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The invention relates to a balance spring for a resonator of a timepiece including a strip coiled on itself into several coils. According to the invention, the strip is formed by a series of prismatic portions integral with each other wherein one of the two opposite faces is formed by a series of rectangular portions integral with each other so as to form a polygonal spring.
First claim
Opening claim text (preview).
What is claimed is: 1. A balance spring for a resonator of a timepiece including: a solid strip without any recess or hole which is coiled on itself into several coils, wherein at least one part of the strip is formed by a series of prismatic portions integral with each other so as to form a polygonal spring, and wherein at least two adjacent prismatic portions form an angle of more than 90° and less than 180° therebetween. 2. The balance spring according…
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- G04B17/063Primary
Physics · mapped topic
- G04B17/066Primary
Physics · mapped topic
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- What does patent US9268307B2 cover?
- The invention relates to a balance spring for a resonator of a timepiece including a strip coiled on itself into several coils. According to the invention, the strip is formed by a series of prismatic portions integral with each other wherein one of the two opposite faces is formed by a series of rectangular portions integral with each other so as to form a polygonal spring.
- Who is the assignee on this patent?
- Eta Sa Mft Horlogere Suisse
- What technology area does this patent fall under?
- Primary CPC classification G04B17/063. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Feb 23 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).