초록 ▼

A radially-resilient seal can frequently pop out its annular groove defined in a carrier when the carrier and an overlapping housing are telescopically assembled. Such misorientation of the seal prevents proper seating of the seal against the housing and ultimately permits leakage of pressurized flu

A radially-resilient seal can frequently pop out its annular groove defined in a carrier when the carrier and an overlapping housing are telescopically assembled. Such misorientation of the seal prevents proper seating of the seal against the housing and ultimately permits leakage of pressurized fluid past the seal. The present invention provides a compact sealed joint and fool-proof method of assembly which maintains proper orientation of a radially-resilient seal during telescopic assembly of a carrier and a housing. The sealed joint includes an annular member having a diametrically tapered internal surface. The annular member positively ensures that the seal will properly seat against a housing inner surface which is not only physically inaccessible to the assembler but is also hidden from the assembler\s view by an outer casing during the telescopic assembly.

대표청구항 ▼

A sealed joint comprising: a housing having an inner cylindrical surface and a longitudinal axis; a carrier telescopically disposed in the housing, said carrier defining an annular groove opening towards the inner cylindrical surface of the housing; a radially-resilient annular seal installed in the

A sealed joint comprising: a housing having an inner cylindrical surface and a longitudinal axis; a carrier telescopically disposed in the housing, said carrier defining an annular groove opening towards the inner cylindrical surface of the housing; a radially-resilient annular seal installed in the groove and having a radial peripheral surface which sealedly contacts the inner cylindrical surface of the housing; and a separate annular member maintained concentrically around the carrier and axially spaced from the radial peripheral surface of the seal, said annular member having an internal annular surface which is diametrically tapered along the longitudinal axis in decreasing fashion towards the seal, said internal annular surface having a pair of opposite end portions wherein one end portion of the internal annular surface has an enlarged internal diameter which is of a preselected magnitude sufficient to surround both the carrier and the installed seal in radially-spaced relation when the annular member is at a first axial position during assembly of the joint, said other end portion of the internal annular surface having a reduced internal diameter of another preselected magnitude sufficient to radially-inwardly compress the seal further in the groove when the annular member is at a second axial position during assembly of the joint.