Pittway Corporation

Edward J Thorp

Kenneth R Fenne

Curtis R Davidson

Douglas J Anderson

William F Laubach

Gerald D Rork

Ronald J Zegarski

A plastic cover covers a surface-mounted junction box which delivers wires to an alarm unit or emergency light or the like which is mounted to the cover. The cover is connected to the junction box by screws which engage threaded holes provided by the junction box. The cover can be mounted to either a single wide junction box or a double wide junction box and provides corresponding holes for connection to either box. The alarm devices can be connected to the cover directly by screws or by a combination of a single screw and a tab which is received into a slot on the cover. The cover and alarm unit together form an architecturally attractive cover for an otherwise industrial appearing junction box. When the cover is attached to the junction box, the box no longer can be seen. The covers can be color coded for a particular alarm service, such as fire, weather warnings, or other emergency conditions.

Cover for surface mounted alarm unit

A right angle clamp is usable for mounting a condition sensor to an apparatus, such as a valve and the like. The clamp includes a bracket having first and second sides. The first side has a pair of elongated slots therein for receipt of a pair of straight-bolts. The bolts pass through the yoke of an associated valve, between the yoke uprights and the valve stem, and are secured to a substantially U-shaped, elongated retaining member having an open end. Each bolt is secured to the retaining member by threaded nut. A substantially U-shaped reinforcing member is positioned between the retaining member and the nut to prevent distortion of the retaining member when the retaining member is in tension. The elongated retaining member allows for easy installation and adjustment of the clamp.

Right angle clamp

Strobe

Combined electrical outlet cover and mounting plate for strobe light for

An ionization smoke detector is disclosed in which an electric field is established in an ionization chamber which includes an outer cup-shaped electrode defining the chamber and having side wall apertures for permitting airflow therethrough and a circular inner electrode within the chamber. A radiation source is arranged to produce bipolar and unipolar regions in the chamber. A cylindrical control screen coaxial with the outer electrode and spaced therefrom is electrically connected to and supported by the inner electrode in the chamber.

Ionization chamber for smoke detector and the like

Growing community of inventors

Aurora, IL, United States of America

Edward J Thorp