Vehicle brake device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 28, 2015
Grant Date -
Jan 24, 2013
app pub date -
Mar 30, 2011
filing date -
Mar 31, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In a vehicle brake device, a port is provided at a hydraulic chamber of a master cylinder and communicates with a reservoir tank. A piston movable in the hydraulic chamber for closing the port is provided with at least one piston-side port that faces on the port when at a first position. When a brake pedal is stepped on from a retracted state to move the piston from the first position to a second position spaced from the first position by a predetermined distance, the hydraulic chamber is blocked from the communication with the reservoir tank. The at least one piston-side port is provided therein with an orifice, so that the hydraulic pressure in the hydraulic chamber is raised at the time of a quick stepping of the brake pedal but is allowed to flow to the reservoir tank without being raised at the time of a non-quick stepping.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully