Spring devices – Bendable along flat surface – Ring or annular spider
Reexamination Certificate
2005-07-12
2005-07-12
Graham, Matthew C. (Department: 3683)
Spring devices
Bendable along flat surface
Ring or annular spider
C188S267000, C267S136000
Reexamination Certificate
active
06916017
ABSTRACT:
The invention relates to a damper device for damping vibration, the device comprising an energy converter device mounted on a baseplate for fixing to a structure, the energy converter device presenting a moving portion suspended by at least one spring. The moving portion presents at least one flat centering spring extending between an inside region having a first diameter and an outside region having a second diameter, said centering spring presenting at least two cutouts, each being in the form of a branch having at least one segment turning its concave side towards the outside of the spring.
REFERENCES:
patent: 2690529 (1954-09-01), Lindblad
patent: 5361243 (1994-11-01), Kasahara
patent: 5673785 (1997-10-01), Schlaak et al.
patent: 5709516 (1998-01-01), Peterson et al.
patent: 6056519 (2000-05-01), Morita et al.
patent: 21 00 831 (1972-07-01), None
patent: 198 23 716 (1999-12-01), None
patent: 2 454 020 (1980-11-01), None
Alston & Bird LLP
Graham Matthew C.
Hutchinson
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