Motors: expansible chamber type – Working member position feedback to motive fluid control – Follower type
Patent
1991-08-21
1993-01-12
Look, Edward K.
Motors: expansible chamber type
Working member position feedback to motive fluid control
Follower type
92 48, 92 99, 913692, F15B 910
Patent
active
051780542
ABSTRACT:
In a tandem type booster, the inner peripheral end of a front booster piston and the inner peripheral bead of a front diaphragm are clamped between a front end of a sleeve fitted over an outer periphery of the piston boss and a flange provided on the piston boss, so that they are connected to a front portion of the piston boss, and a rear booster piston and the piston boss are coupled to each other in a bayonet manner by retaining pawls formed on a inner peripheral end of a rear booster piston and retaining grooves provided in the outer periphery of the piston boss. The rear booster piston, the sleeve and the piston boss are engaged with one another while preventing relative rotation therebetween, and an inner peripheral bead of a rear diaphragm is clamped between the rear booster piston and a set ring and connected to a rear portion of the piston boss. Therefore, even if the set ring should be removed, the rear booster piston and the piston boss coupled to each other in the bayonet manner cannot be immediately separated, thereby ensuring that the coupling of the front and rear booster pistons with the sleeve is maintained.
REFERENCES:
patent: 4512237 (1985-04-01), Endoh et al.
patent: 4716814 (1988-01-01), Yamakoshi
patent: 4718328 (1988-01-01), Mori et al.
patent: 4729289 (1988-03-01), Boehm
patent: 4787292 (1988-11-01), Tsuyuki et al.
patent: 4813337 (1989-03-01), Endo
patent: 4882980 (1989-11-01), Arino et al.
patent: 4905573 (1990-03-01), Miyazaki et al.
patent: 5027695 (1991-07-01), Inoue et al.
patent: 5062348 (1991-11-01), Gotoh et al.
Kaneko Chiseki
Shinohara Takayoshi
Look Edward K.
Nguyen Hoang
Nissin Kogyo Kabushiki Kaisha
LandOfFree
Tandem type vacuum booster does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tandem type vacuum booster, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tandem type vacuum booster will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1212918