Timepiece component with a part having an improved welding surface
US-2016370763-A1 · Dec 22, 2016 · US
Mainspring comprising supplementary energy accumulation curves
US8950552B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8950552-B2 |
| Application number | US-201214111089-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 3, 2012 |
| Priority date | May 3, 2011 |
| Publication date | Feb 10, 2015 |
| Grant date | Feb 10, 2015 |
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Abstract
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A barrel including a box for receiving a pivot arbour and at least one spring, wherein the at least one spiral spring is mounted between an internal wall of the box and an external wall of the pivot arbour , and can be wound to supply mechanical energy. The barrel further includes a device for increasing torque of the at least one spring including supplementary energy accumulation curves made on the spring so that the barrel torque is customized according to a winding tension of the at least one spring. The barrel can be a timepiece barrel.
First claim
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The invention claimed is: 1. A barrel comprising: a box for receiving a pivot arbour and at least one spring, wherein the at least one spring is mounted between an internal wall of the box and an external wall of the pivot arbour, and can be wound to supply mechanical energy; a device for increasing torque of the at least one spring including supplementary energy accumulation curves that are integral with the at least one spring and provided in addition to a spiral shape of the…
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- What does patent US8950552B2 cover?
- A barrel including a box for receiving a pivot arbour and at least one spring, wherein the at least one spiral spring is mounted between an internal wall of the box and an external wall of the pivot arbour , and can be wound to supply mechanical energy. The barrel further includes a device for increasing torque of the at least one spring including supplementary energy accumulation curves made o…
- Who is the assignee on this patent?
- Charbon Christian, Nivarox Sa
- What technology area does this patent fall under?
- Primary CPC classification G04B1/145. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Feb 10 2015 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).