Braking system using a valve
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United States of America Patent
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Jan 16, 2018
Issued Date -
N/A
app pub date -
Aug 25, 2016
filing date -
Aug 26, 2015
priority date (Note) -
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Abstract
A system for blocking a plug valve, the system comprising:
- a plug (1) movable in rotation about an axis (Y-Y); anda blocker part (5);the system being characterized in that:the plug (1) presents an index portion having a first ramp (3) and a second ramp (4) that are arranged around the shaft (2) with oppositely-handed slopes; andthe blocker part (5) presents first and second index portions (8, 9) adapted to come selectively into contact with the first and second ramps (3, 4) respectively;the first ramp (3) and the first index portion (8) serving to prevent the plug (1) from turning about the longitudinal axis (Y-Y) in a first direction of rotation, and the second ramp (4) and the second index portion (9) serving to prevent the plug (1) from turning about the longitudinal axis (Y-Y) in a second direction of rotation.
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