Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Carlos M. Ascua0
Juan Carlos de Ledebur0
Date of Patent
February 2, 2016
0Patent Application Number
137781820
Date Filed
February 27, 2013
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A pneumatic vacuum valve is situated atop a cylinder or convenient working space utilized in conjunction with a pneumatic elevator. The vacuum valve has a coupling unit holding a diaphragm device for actuation of the diaphragm against a flow control opening. An Allen screw uses a simple regulation device to control the flow of air into a working chamber for expansion and contraction of the diaphragm device.
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