초록 ▼

Disclosed is a flexible joint for sealing two conduits. One half of the joint includes an annular seal gland with an outer surface defining a static seal face. The other half of the joint includes an inner race member having inner and outer bearing surfaces, the inner surface spaced apart from and g

Disclosed is a flexible joint for sealing two conduits. One half of the joint includes an annular seal gland with an outer surface defining a static seal face. The other half of the joint includes an inner race member having inner and outer bearing surfaces, the inner surface spaced apart from and generally opposing the outer surface of the seal gland and having a region defining a dynamic seal face. An annular bellows constructed of a plurality of convolutions having varying convolution heights is disposed between the first and second seal faces to form a low leakage seal. The heights of the convolutions decrease in the direction of the first to the second seal faces.

대표청구항 ▼

A joint for sealing first and second cylindrical ducts comprising: a first half having a cylindrical first collar for forming a gas-tight seal with the first duct, and an annular seal gland extending longitudinally and canted from the first collar having an outer surface, the outer surface of the se

A joint for sealing first and second cylindrical ducts comprising: a first half having a cylindrical first collar for forming a gas-tight seal with the first duct, and an annular seal gland extending longitudinally and canted from the first collar having an outer surface, the outer surface of the seal gland having a region defining a static seal face; and a second half having a cylindrical second collar for forming a gas-tight seal with the second duct, an inner race member extending longitudinally and canted from the second collar having inner and outer surfaces, the inner surface spaced apart from and generally opposing the outer surface of the seal gland and having a region defining a dynamic seal face and the outer surface defining a first bearing surface, an annular bellows constructed of a plurality of convolutions disposed between the static and dynamic seal faces forming thereon a static seal and a dynamic seal, respectively, where the convolutions have mean diameters which decrease in the direction of the static to the dynamic seals, an outer race member having an inner surface defining a second bearing surface with a center of angulation substantially the same as the center of angulation of the first bearing surface slidably contacting the first bearing surface, means for biasing the first bearing surface against the second bearing surface, and means for coupling the first half to the second half.