Sealing apparatus for a valve body opening

Details Sealing apparatus for a valve body opening Sealing apparatus for a valve body opening

1986-04-03

1987-07-28

Bryant, III, James E.

Pipes and tubular conduits

With closures and plugs

Laterally insertable

138 89, F16L 5512

Patent

active

046826319

ABSTRACT:
An apparatus is provided for sealing the pressure side opening of a gate ve body which includes a pair of plates and a device for joining the plates for lateral and pivotal movements with respect to one another. A device is associated with the outside edge of one of the plates for engaging the nonpressure side of the gate valve and another device is associated with the outside edge of the other plate for sealing the pressure side opening of the gate valve. Each plate has a top camming surface and a bottom camming surface with the top camming surfaces of the plates being angled toward one another and the bottom camming surfaces of the plates being angled toward one another. A device engages the top and bottom camming surfaces of the plates for laterally spreading the plates so that the sealing device can be forced into sealing engagement with the pressure side opening of the gate valve body.

REFERENCES:
patent: 3130951 (1964-04-01), Smith
patent: 3543802 (1970-12-01), Leopold et al.
patent: 4285368 (1981-08-01), Teppill et al.
patent: 4408636 (1983-10-01), Karpenko

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