RING OF ELASTIC MATERIAL Russian patent published in 2000 - IPC

FIELD: sealing of pneumatic and hydraulic systems in joints of pipelines, for example for supplying gasoline to internal combustion engine through collector. SUBSTANCE: ring of elastic material has opposite sides. Inner and outer ( relative to central axis) surfaces have T-section. Ball-type protrusions have parallel cutouts and openings crossing them. Said protrusions do not extend outside annular edges of T-flanges and they are arranged in pairs opposite relative to central axis of ring with possibility of creating macrometric vacuum action upon coincided elastically compressed surfaces of cutouts and annular edges that close boundary volumes of ring ends. Elastic material of ring features predetermined properties. EFFECT: enhanced reliability of sealing. 2 dwg