Hydraulic cylinder with an o-ring seal of variable geometry

Abstract

A new system of hydraulic and piston cylinders for the lifting of large loads manufactured based on commercial tubes, in which the cylinder tube ( 1 ), closed on its lower part possesses a welded and rigid washer ( 2 ) on its lower part and inside the aforementioned cylinder. The piston has another rigid washer welded to it ( 4 ) at a certain distance from the lower end and on its outer surface. Between the two there is an O-Ring seal ( 6 ) of variable geometry that is constructed with an elastomeric, compressable and deformable material of low friction and high elasticity and a free washer. The compression of the O-Ring seal makes up a system that closes, guaranteeing its watertightness.

1 . A hydraulic cylinder with an O-Ring seal of variable geometry for the lifting or pushing of any load characterised by comprising of:
 A cylinder tube ( 1 ) closed on its inside that is equipped with a welded rigid washer ( 2 ) in the upper and inner parts of said cylinder,   A piston ( 3 ) which at a certain distance of its lower end and on its outer surface has another rigid washer welded to it ( 4 ),   An O-Ring seal ( 6 ) of variable geometry which is constructed of an elastomeric, compressible and deformable material, of low friction and high elasticity situated between the cylinder tube and the piston and   One loose washer ( 7 ) between the cylinder tube and the piston,   With ( 1 ) being the cylinder tube and ( 3 ) being the piston and commercial pipelines.   
     
     
         2 . The hydraulic cylinder in patent  claim 1 , is claimed because the washer ( 4 ) welded to the piston, the O-Ring seal ( 6 ) and the free washer ( 7 ) present some bores ( 5 ) for the insertion of bolts that allow for the tightening and compression of the O-Ring seal ( 6 ). 
     
     
         3 . Hydraulic cylinder in patent  claim 2 , is claimed because it comprises of a series of bolts to compress the O-Ring seal ( 6 ). 
     
     
         4 . O-Ring seal ( 6 ) of variable geometry that is constructed of an elastomeric, compressable and deformable material of low friction and high elasticity for its use in the hydraulic cylinder from patent  claim 1 .