Electric box extender and supplemental part

Electricity: conductors and insulators – Boxes and housings – Hermetic sealed envelope type

Patent

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Details

174 58, 174 526, 174 63, 220 32, 220 402, H01J 500

Patent

active

059592460

ABSTRACT:
The invention consists of a one-piece plastic molded box having an open face member, an open back, flanges coplanar with and extending from the face member, and four wings extending from the inward side of the face member. The extender can be inserted slidably into an existing electrical box with the four wings flexing toward each other to accommodate the box with flanges flush with the surface of newly installed sheet rock to form a box extender or with flanges flush with the existing electrical box to form a device insulator.

REFERENCES:
patent: 3059803 (1962-10-01), Holsinger
patent: 3770873 (1973-11-01), Brown
patent: 4044908 (1977-08-01), Dauberger
patent: 4054222 (1977-10-01), Suk
patent: 4134636 (1979-01-01), Kleinatland et al.
patent: 4202457 (1980-05-01), Tansi
patent: 4289921 (1981-09-01), Gartner et al.
patent: 4529834 (1985-07-01), Nattel
patent: 5375728 (1994-12-01), West
patent: 5736674 (1998-04-01), Gretz

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