Cherne Industries Incorporated

Steven J Hiemsoth

Marc P Bevacco

A drain flusher device for dislodging an obstruction in a pipe. The drain flushing device has an elastomeric cylindrical body with an open neck end and nose portion having a thickened end wall. An elongated slit with a predetermined configuration and predetermined dimensions extends through the thickened forward end wall. A connector is fixed at the body neck end and is adapted for attachment to a pressurized fluid source, such as a garden hose.

Drain flusher device

Drain flusher

An inflatable, expansible, multisize plug device which seals and locks the interior of a pipeline section. The plug device comprises a cylindrical body structure and includes a central member and removable inner and outer disc members attached thereto. The outer disc member further has a raised screw mounting structure longitudinally formed thereon. An inflatable elastomeric sealing ring is disposed annularly about the body structure, and forms an inner cavity between the sealing ring and the body structure. The sealing ring further has a generally rectangular, open bottomed cross-section with an outer contact wall of a predetermined longitudinal width and a pair of depending radial walls. Each radial wall terminates in an end portion and the end portions sealingly connect the body structure via spacially parallel, annular channel structures which are axially disposed in the body structure and which have generally T-shaped cross-sectional configurations with respect to the overall body structure. The plug device further has an inflator which permits the ingress and egress of fluid into and out of the inner cavity. A plurality of radially aligned locking screws are arranged to mechanically engage the pipeline interior wall, and are disposed in the screw mounting structure.

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Brooklyn Park, MN, United States of America

Steven J Hiemsoth