Balance wheel with flat hairspring

- Maurice Lacroix SA

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Description

FIG. 1 is a top view of the balance wheel with flat hairspring.

FIG. 2 is a bottom view of the balance wheel with flat hairspring.

FIG. 3 is a side view from the bottom of FIG. 1.

FIG. 4 is a side view from the top of FIG. 1.

FIG. 5 is a side view from the right of FIG. 1.

FIG. 6 is a side view from the left of FIG. 1; and,

FIG. 7 is a perspective view of the balance wheel with flat hairspring.

Claims

The ornemental design for a balance wheel with flat hairspring, as shown and described.

Referenced Cited
U.S. Patent Documents
273138 February 1883 Oldroyd
D14427 November 1883 Mason
469914 March 1892 Olsen
617301 January 1899 Teske
1136950 April 1915 Freistadter
1752773 April 1930 Bates
2704433 March 1955 Hutchison, Jr.
3154912 November 1964 Pinkas
3528237 September 1970 Suard
3534546 October 1970 Le Van
3564840 February 1971 Meitinger
3600943 August 1971 Blanchard
3791251 February 1974 Pohlmann
3813872 June 1974 Nakagawa et al.
3934403 January 27, 1976 Tilse
3934406 January 27, 1976 Bornand
3943701 March 16, 1976 Poix
3950938 April 20, 1976 Tilse et al.
3958410 May 25, 1976 Bell
D339751 September 28, 1993 Besson
5907524 May 25, 1999 Marmy et al.
7070321 July 4, 2006 Gabus et al.
7293913 November 13, 2007 Peters et al.
7344302 March 18, 2008 Musy et al.
7350967 April 1, 2008 Jujo
20060002241 January 5, 2006 Verardo et al.
Other references
  • Watches International VI, The Original Annual of the World's Finest Wristwatches, copyright 2005, Tourbillon International LLC, p. 538 watch balance and spring.
Patent History
Patent number: D591191
Type: Grant
Filed: Dec 18, 2007
Date of Patent: Apr 28, 2009
Assignee: Maurice Lacroix SA (Saignelegier)
Inventors: Laurent Besse (Villers le Lac), Damien Sourice (La Chaux-de-Fonds)
Primary Examiner: Lucy Lieberman
Attorney: Young & Thompson
Application Number: 29/299,023
Classifications
Current U.S. Class: Movement Or Movement Frame (D10/129)