초록 ▼

A sealing device for preventing fluid leakage between a screw and a nut threaded thereon. The thread on the screw includes a cylindrical crest and a helical rounded groove. The device includes an annular elastomeric member having inner and outer peripheral surfaces. The inner peripheral surface incl

A sealing device for preventing fluid leakage between a screw and a nut threaded thereon. The thread on the screw includes a cylindrical crest and a helical rounded groove. The device includes an annular elastomeric member having inner and outer peripheral surfaces. The inner peripheral surface includes an axially extending sealing surface which engages the thread crest and a radially inwardly extending sealing projection which engages the thread groove. A relatively rigid support member is radially aligned with the axially extending sealing surface for resisting radially inward deflection thereof. The support member is discontinued at a location aligned with the sealing projection, so that the sealing projection can be radially inwardly deflected by fluid pressure to tightly seal against the thread groove.

대표청구항 ▼

A sealing device for sealing between first and second telescoped parts, said device comprising an annular elastomeric member having inner and outer peripheral surfaces, said inner peripheral surface being arranged for sealing engagement with one of said parts and including an axially extending seali

A sealing device for sealing between first and second telescoped parts, said device comprising an annular elastomeric member having inner and outer peripheral surfaces, said inner peripheral surface being arranged for sealing engagement with one of said parts and including an axially extending sealing surface and a radially inwardly extending sealing projection, said sealing projection extending through an arc of predetermined circumferential extent, a relatively rigid axially extending support disposed in radially outward alignment with said axially extending sealing surface, said support being discontinued for a predetermined circumferential extent at a location in radially outward alignment with said projection, and said circumferential extent of said discontinuity being substantially as great as said circumferential extent of said sealing projection.