Controller for reducing excessive amplitude of oscillation...

Details Controller for reducing excessive amplitude of oscillation... Controller for reducing excessive amplitude of oscillation...

2005-07-26

2005-07-26

Graham, Matthew C. (Department: 3683)

Brakes

Inertia of damping mass dissipates motion

Resiliently supported damping mass

C188S379000, C267S136000, C267S140140, C060S520000

Reexamination Certificate

active

06920967

ABSTRACT:
An apparatus for detecting and reducing excessive amplitude of oscillation of a free piston slidably mounted in a housing. The housing has a vibration absorber, including a mass mounted through a spring to the housing. The mass reciprocates relative to the housing along a path in a phase relationship to the piston. A sensor is mounted near the mass for detecting the amplitude of oscillation of the mass. A controller is connected to the sensor for reducing the amplitude of oscillation of the piston when the amplitude of oscillation of the mass reaches a predetermined maximum.

REFERENCES:
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patent: 6050092 (2000-04-01), Genstler et al.
patent: 6094912 (2000-08-01), Williford
patent: 6247310 (2001-06-01), Norris et al.

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