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Patent Searching and Data


Title:
SPIRAL SPRING FOR MECHANICAL CLOCKWORKS AND METHOD FOR PRODUCING A SPIRAL SPRING FOR MECHANICAL CLOCKWORKS
Document Type and Number:
WIPO Patent Application WO/2015/011637
Kind Code:
A3
Abstract:
The invention relates to a spiral spring (2) for mechanical clockworks. The spiral spring (2) has a spiral spring plane (E), which coincides with the oscillation plane of the spiral spring (2), and a spiral spring axis (A), which extends perpendicularly to the spiral spring plane (E) and through the oscillation center of the spiral spring (2). A core (4) of the spiral spring (2) is made of polycrystalline silicon, wherein the core (4) of the spiral spring (2) is constructed of a plurality of layers made of polycrystalline silicon (41, 42, 43, …, 4N) in a direction parallel to the spiral spring axis (A) and a first, outer layer (5) is made of silicon dioxide.

Inventors:
DAMASKO KONRAD (DE)
Application Number:
PCT/IB2014/063297
Publication Date:
May 28, 2015
Filing Date:
July 22, 2014
Export Citation:
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Assignee:
DAMASKO GMBH (DE)
International Classes:
G04B17/06; F16F1/00
Foreign References:
CH699780A22010-04-30
EP0732635A11996-09-18
Attorney, Agent or Firm:
REICHERT & LINDNER (Regensburg, DE)
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