초록 ▼

A packing member comprising an annular body having a circular groove extending axially thereinto through an end wall to form inner and outer sealing lips utilizes a resilient member embedded in the annular body to exert a radially directed force to a wall surface of the groove to actuate one of the

A packing member comprising an annular body having a circular groove extending axially thereinto through an end wall to form inner and outer sealing lips utilizes a resilient member embedded in the annular body to exert a radially directed force to a wall surface of the groove to actuate one of the sealing lips. The other sealing lip has a plurality of spaced-apart circular holes extending axially thereinto through the first end wall of the body. In one embodiment, the resilient member is a garter spring carried in a recess formed in the inner wall surface of the groove to actuate the inner sealing lip. In another embodiment, the resilient member is a curved solid rod carried in a recess formed in the outer wall surface of the groove to actuate the outer sealing lip.

대표청구항 ▼

A packing member comprising: an annular body having a circular outer wall and a circular inner wall, with first and second end walls extending between the inner and outer walls; said annular body having a groove with inner and outer groove walls extending axially into the body through the first end

A packing member comprising: an annular body having a circular outer wall and a circular inner wall, with first and second end walls extending between the inner and outer walls; said annular body having a groove with inner and outer groove walls extending axially into the body through the first end wall; the inner and outer walls of said body including inner and outer sealing lips, respectively, formed therein adjacent to at least a portion of the groove; and a resilient, circular member engaging one of the groove walls for applying a radially directed force to one of the sealing lips; said annular body including a plurality of spaced apart openings extending axially into the first end wall thereof between the other groove wall and the other sealing lip.