Liner for intersecting cross bore and edge bore of foam-filled m

Details Liner for intersecting cross bore and edge bore of foam-filled m Liner for intersecting cross bore and edge bore of foam-filled m

1977-12-23

1978-10-10

Downey, Kenneth

Movable or removable closures

Panel with closure feature

Modified to accommodate lock or latch

52743, E06B 300

Patent

active

041188950

ABSTRACT:
Prior to foaming, a unitary molded plastic liner or dam for the lockset cross bore and edge bore of a foam-filled metal skinned insulated door is installed between the metal skins in registration with accurately located pre-punched skin openings. The edge bore lining extension of the device is inserted into a preformed opening of the wooden stile for positioning the device. The device prevents insulating foam from entering the cross bore or intersecting edge bore in the subsequent foaming operation. Significant reinforcement is also provided between the metal skins of the door to prevent buckling of the skins during the installation of door hardware.

REFERENCES:
patent: 2924861 (1960-02-01), Viets
patent: 3156019 (1964-11-01), Dawley
patent: 3334464 (1967-08-01), Charles
patent: 3512305 (1970-05-01), Multer

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