초록 ▼

A telescopic joint in low pressure corrugated plastic pipe. The joint includes a one-piece elastomeric gasket which functions as a seal between the telescoped pipes. The gasket has a sealing portion adapted to be disposed in a groove in one of the pipes and an anchoring portion adapted to be dispose

A telescopic joint in low pressure corrugated plastic pipe. The joint includes a one-piece elastomeric gasket which functions as a seal between the telescoped pipes. The gasket has a sealing portion adapted to be disposed in a groove in one of the pipes and an anchoring portion adapted to be disposed in an adjacent groove. As the pipes are telescoped together the anchoring portion is trapped in the groove and anchors the sealing portion in place as it is compressed due to an interference fit with the pipes as the joint is made.

대표청구항 ▼

For use with a first pipe having a plurality of annular grooves and a second pipe, an elastomeric gasket for forming a seal in a telescopic joint between the first and second pipes comprising: a sealing portion adapted to be disposed in one of the first pipe annular grooves and extend out of the one

For use with a first pipe having a plurality of annular grooves and a second pipe, an elastomeric gasket for forming a seal in a telescopic joint between the first and second pipes comprising: a sealing portion adapted to be disposed in one of the first pipe annular grooves and extend out of the one groove, an anchoring portion adapted to be disposed in another of the first pipe annular grooves and extend out of the other groove, and a portion connecting said sealing portion and said anchoring portion, said gasket for forming a seal as the pipes are telescoped to form a joint, said anchoring portion adapted to be trapped in the other groove of said first pipe thereby anchoring said sealing portion in the one groove of said first pipe for engagement and compression by the second pipe during telescoping of the pipes.