Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Reexamination Certificate
2006-02-07
2006-02-07
Graham, Matthew C. (Department: 3683)
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
C251S129020, C251S129150
Reexamination Certificate
active
06994406
ABSTRACT:
A control valve includes a magnetic pole member. An armature is slidably supported relative to the magnetic pole member for movement between a fully open position and a closed position. A biasing spring is disposed between the magnetic pole member and the armature for forcing the armature away from the magnetic pole member. A coil is placed about the magnetic pole member and the armature for inducing a magnetic field for moving the armature toward the magnetic pole member. One of either of the magnetic pole member or the armature has a recess for non-contactingly receiving the other when the armature moves between the fully open and closed positions. The control valve can be embodied as a normally open valve or a normally closed valve. The use of dual lateral poles and triple lateral poles create a flat magnetic force versus travel curve thereby allowing for greater proportional control of the valve. Additionally, the use of double lateral gaps and triple lateral gaps respectively results in force increases of 21% and 12% respectively. Compounding the force increases results in a net additional force of 36%.
REFERENCES:
patent: 4097833 (1978-06-01), Myers
patent: 4334205 (1982-06-01), Seilly
patent: 4553121 (1985-11-01), Logie
patent: 4658231 (1987-04-01), Schwenzer et al.
patent: 5085402 (1992-02-01), O'Dell
patent: 5110087 (1992-05-01), Studtmann et al.
patent: 5503184 (1996-04-01), Reinartz et al.
patent: 5513673 (1996-05-01), Slavin et al.
patent: 6120003 (2000-09-01), Lubischer et al.
patent: 6305583 (2001-10-01), Ward et al.
patent: 6498558 (2002-12-01), Linkner et al.
Krawczyk Greg J.
Linkner, Jr. Herbert L.
Graham Matthew C.
Kelsey-Hayes Company
MacMillan Sobanski & Todd LLC
Sy Mariano
LandOfFree
EHB proportional solenoid valve with stepped gap armature does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with EHB proportional solenoid valve with stepped gap armature, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and EHB proportional solenoid valve with stepped gap armature will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3627342