Brakes – Internal-resistance motion retarder – Motion damped from condition detected outside of retarder
Patent
1998-07-24
2000-11-28
Mar, Michael
Brakes
Internal-resistance motion retarder
Motion damped from condition detected outside of retarder
1883191, F16F 934
Patent
active
061522716
ABSTRACT:
A shock absorber mounted electromagnetically operated damper valve which is mounted upon a piston rod and provides a flow path for fluid which bypasses the piston which separates a cylinder of the shock absorber into a pair of fluid containing chambers. The damper valve includes a spool reciprocally mounted within the hollow interior of a housing. A retainer is also received within the hollow interior and includes a restricted orifice which produces a differential pressure across the spool to assist in retaining the spool in a predetermined position in the absence of electromagnetic signal.
REFERENCES:
patent: 4785920 (1988-11-01), Knecht et al.
patent: 4905798 (1990-03-01), Engelsdorf et al.
patent: 5027927 (1991-07-01), Bacardit
patent: 5293970 (1994-03-01), Schneider et al.
patent: 5454452 (1995-10-01), Ohlin
patent: 5657840 (1997-08-01), Lizell
patent: 5690195 (1997-11-01), Kruckemeyer et al.
HR Textron Inc.
King Bradley
Mar Michael
LandOfFree
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