US2006067842A1PendingUtilityA1

Simplified piston slidable in a cylinder

47
Assignee: MEUCCI STEFANOPriority: Nov 13, 2002Filed: Nov 14, 2005Published: Mar 30, 2006
Est. expiryNov 13, 2022(expired)· nominal 20-yr term from priority
Inventors:Stefano Meucci
F04B 9/02F04B 17/00F04B 31/00
47
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Claims

Abstract

A simplified piston ( 14 ), slidable in a cylinder ( 16 ), moved by magnetic coupling to an external magnetic element ( 20 ) which moves along the cylinder ( 16 ).

Claims

exact text as granted — not AI-modified
1 . Simplified piston slidable in a cylinder, characterized in that it is moved by magnetic coupling to an external magnetic element which moves along the said cylinder.  
   
   
       2 . Piston according to  claim 1 , characterized in that the said external magnetic element is a ring which is moved outside the said cylinder.  
   
   
       3 . Piston according to  claim 1 , characterized in that the said cylinder is made from a nonmagnetic material.  
   
   
       4 . Piston according to  claim 1 , characterized in that it is made from a material sensitive to a magnetic field.  
   
   
       5 . Piston according to  claim 4 , characterized in that it is made from a metallic material.  
   
   
       6 . Piston according to  claim 1 , characterized in that it is used in a reciprocating machine.  
   
   
       7 . Piston according to  claim 6 , characterized in that the said reciprocating machine is a reciprocating compressor.  
   
   
       8 . Piston according to  claim 1 , characterized in that the said external magnetic element is moved by a reciprocating motor.  
   
   
       9 . Piston according to  claim 8 , characterized in that the said reciprocating motor is of the pneumatic type.  
   
   
       10 . Piston according to  claim 8 , characterized in that it is not provided with a central operating rod.  
   
   
       11 . Piston according to  claim 1 , characterized in that the said cylinder has no seal in contact with the exterior.  
   
   
       12 . Piston according to  claim 7 , characterized in that the said reciprocating compressor is double-acting.

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