Class Information
Number: 188/309
Name: Brakes > Internal-resistance motion retarder > Having a thrust member with a variable volume chamber (e.g., coaxial or telescoping tubes, compensating reservoir) > Arcuately oscillating thrust member > Causing fluid flow through hub of thrust > With manually adjusted valve in hub
Description: Device wherein said shaft is also provided with an element modifying the size of the orifice, which element is manipulated by a person using the device to vary the size of the orifice.
Patents under this class:
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