Mechanical plug for clean-out tees

Details Mechanical plug for clean-out tees Mechanical plug for clean-out tees

1989-12-11

1991-07-30

Levy, Stuart S.

Pipes and tubular conduits

With closures and plugs

Lateral opening

138 89, 138 94, 220233, 220237, 277102, 277114, 4295, 411 72, F16L 5510, F16L 2104

Patent

active

050352660

ABSTRACT:
A mechanical plug device for sealing pipeline access ports having a small threaded inner surface. The mechanical plug device has opposing inner and outer circular plate members. The rigid plate members each have interiorly tapered circumferential shoulders of generally the same predetermined slope. The inner plate member has an inner surface, an outer surface, a central aperture and a central cavity extending inward from the tapered circumferential shoulder. The outer circular plate member has an inner surface, an outer surface, a central aperture and an outwardly extending structure from the tapered circumferential shoulder for movement into the central cavity of the inner plate member. The device further has an elastomeric radially expandable pre-threaded O-ring structure which has an outer circumferential threaded surface configuration. The O-ring structure has a V-shaped bottom cross-section defining inclined surfaces of a predetermined slope. The device has an adjustable lateral force structure active between the inner and outer plate members to adjust and position the O-ring structure on their opposing circumferential shoulders.

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