SEALING CUP Russian patent published in 2014 - IPC F16J15/16 

FIELD: machine building.

SUBSTANCE: sealing cup intended to be installed between two elements set at the pre-set radial distance from each other at a reciprocating motion, comprises a rigid annular base of a rectangular cross section, inner and outer flexible sealing edges, inner and outer annular edges located on the opposite end from the above rigid annular base and forming a common structure with the rigid annular base and providing for an annular cavity open on the side of the inner and outer annular edges, inner and outer flexible sealing edges, as well as an elastic expanding ring set in the said annular cavity between the flexible sealing edges and the rigid annular base. A form and interrelation of the sealing cup elements are described.

EFFECT: invention improves the sealing cup reliability.

5 cl, 6 dwg