F - Mech Eng,Light,Heat,Weapons – 16 – J
Patent
F - Mech Eng,Light,Heat,Weapons
16
J
248/17, 277/5, 6
F16J 15/24 (2006.01)
Patent
CA 1119211
Harry W. Skinner Alan D. Burdick GASKET APPARATUS AND METHOD ABSTRACT OF THE DISCLOSURE This invention relates to a gasket apparatus for providing a fluid tight seal between a pipe and a porthole in the wall of a manhole riser. The apparatus includes an elongated sleeve of elastomeric material, The sleeve having at one end an outwardly turned, reflexly curved annular flange. The body portion extends axially beyond the flange. A rigid reinforcing ring coaxially engages the inner surface of the flange, forming said flange to a predetermined outside diameter. This apparatus is inserted into the porthole in coaxial sealing relationship therewith. The flange is radially compressed between the ring and the wall of the porthole thereby providing a seal. The end of the pipe is received by the sleeve which is clamped at the digtal end thereof onto the pipe to provide a further seal. The method of forming the seal includes inserting a solid, substantially rigid ring into the end portion of an elastomeric elongated sleeve which thereby determines the outer diameter of the sleeve radially opposite the ring. The assembled ring and sleeve are inserted edgewise into the hole in a direction substantially parallel to the axis thereof with the assembled ring and sleeve lying in a plane also substantially parallel to this axis. The assembly is then forcefully rotated until it is coaxially positioned within the hole with the sleeve material being radially compressed between the ring and the wall of the porthole. -1-
334586
Burdick Alan D.
Skinner Harry W.
Press-Seal Gasket Corporation
Smart & Biggar
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