Vacuum booster

Details Vacuum booster Vacuum booster

1991-10-29

1993-03-23

Look, Edward K.

Expansible chamber devices

With support or frame

605471, 913691, 913692, 91376R, F01B 2900

Patent

active

051954214

ABSTRACT:
A pedestal formed bulged on a rear wall of a booster shell and attached to a vehicle body by four connecting bolts has a pheripheral wall whose length from a general wall of the rear wall of the booster shell to a seating face wall of the pedestal becomes larger toward each of corners of the pedestal. This ensures that the concentration of a stress produced at each of the corners of the peripheral wall of the pedestal can be moderated, thereby providing an improvedment in durability of the rear wall of the booster shell and suppressing an increase in internal volume of the pedestal to the utmost.

REFERENCES:
patent: Re31911 (1985-06-01), Ohta et al.
patent: 4296680 (1981-10-01), Ohta et al.

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