The Lamson & Sessions Co.

David P Marshall

William M Chambers

Charles H Riedy

John B Markiewicz

James A Rajecki

Peter D Sadosky

An electrical box is provided in which a box enclosure is provided that includes a base, sides and at least one yoke for receiving an electrical device. The box enclosure can be formed of discrete components which can be assembled to form a single or multiple-gang box. A collar is provided as an interface between the box enclosure and the mounting surface. The collar hingeably retains a cover for optionally covering the electrical device. The cover in turn hingeably retains a cord door for admitting an electrical cord and other such cables. The cover and cord door each have respective gaskets which provide a fluid-tight seal to protect the electrical device. The cover can be manufactured for a single-gang or a multiple-gang electrical box.

Electrical box

Cover for electrical boxes

A coupling device for installation in a building wall or floor to provide a passthrough opening for pipes, tubing, and the like comprises an axially elongated, plastic tubular housing with a radially extending mounting flange and having open first end and a second end which is closed by a transverse wall. At least one tubular coupling element having an entrance end and an exit end is positioned within the housing to extend axially thereof with the entrance end of the coupling opening to the first end of the housing. Intumescent firestop material surrounds the coupling element and fills the space between the coupling element and the outer housing. A tube member extends from the coupling element to the second end of the housing. After the coupling device is installed, the second end of the housing is cut away at the surface level of the partition to expose the tube member for connection to the associated piping system.

Passthrough device with firestop

Growing community of inventors

Chagrin Falls, OH, United States of America

David P Marshall