Active vibration damping actuator and active damping...

Details Active vibration damping actuator and active damping... Active vibration damping actuator and active damping...

2006-02-07

2006-02-07

Burch, Melody M. (Department: 3683)

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

C016S074000, C277S634000

Reexamination Certificate

active

06994332

ABSTRACT:
A vibration damping actuator including: a guide hole open onto a bottom face of a housing; a lid metal plate fitted into the opening of the guide hole with a size enough to hinder inward displacement thereof into the guide hole by an annular shoulder portion; an engaging groove disposed on an inner circumferential surface of the opening; a snap ring of C-letter shape fitted into the engaging groove to prevent the lid metal plate from becoming dislodged from the opening; and a sealing rubber layer formed covering an inside face of the lid metal plate. The lid metal plate is pressed by the snap ring so that the sealing rubber layer is pushed against the annular shoulder portion, thereby sealing the opening of the guide hole.

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