Square D Company

Norman M Newsome

Michael R Harris

Walter T Brumfield

Jeffrey O Sharp

Hamid Sattari Abroy

Harris I Stanback

George E Schweikle

William K Chambers

Randall Lee Blue

Gary H Dodier

Robert B Lamar, Jr

A weatherproof enclosure,with a side hinged cover,having a screwless cover latching means,which is not defeated by the pressure of expanding internal gases, is disclosed. The enclosure,includes a rain channel,located immediately adjacent a front edge of the box top,The rain channel,is generally J-shaped in cross-section and extends across the front of the box,and slightly beyond the two side walls,and,of the box,such that any liquid being received within the rain channel,will be directed over the side walls,and,of the box,The rain channel,cooperates with a downwardly extending flange,along the front edge of the box top,and an inwardly extending flange,along the top of the side hinged cover,to prevent the ingress of liquid at the top of the cover,Inwardly facing flanges,and,along the sides of the hinged cover,overlap the side walls,and,of the box,to prevent the ingress of liquid along each side of the cover,The cover latch,is positioned outside the side wall,or,of the box,such that the corresponding latching slot,in the cover,is also outside the box side wall,or,thus preventing the ingress of liquid through the latching slot,The configuration of the cover,latch,and the latching slot,is such that pressure exerted on the inside surfaces of the enclosure,causes a positive latching effect between the cover,and the latch

Electrical enclosure

The present invention provides an interior panel assembly for a load center having a plurality of adjacent components for distributing electrical service to branch circuits. The panel assembly includes at least one bus bar formed with branch stabs for electrically connecting to terminals extending from a plurality of circuit interrupters and a generally planar support base having a front face for securing each bus bar. One end of each bus bar is adapted for electrical and mechanical connection to one of the adjacent components. The panel assembly aligns the interior panel assembly relative to an adjacent component and relative to an enclosure for the load center so that the adjacent component connects electrical service to each bus bar and the interior panel assembly secures within the enclosure. Preferably, at least one pair of flanges is integrally formed along the circumference of the support base. The pair of flanges are positioned along opposing ends of the support base. In another preferred embodiment a bracket having an elongated body with a generally flat profile is fastened to one of the enclosure walls. The bracket also includes at least one tab integrally formed with the body. The tab has side walls and a distal end extending perpendicularly outward from the body. The tab has an embossed profile with the tab being raised out of the plane of the elongated body.

Alignment features for load center interior assembly

The present invention provides a connector bar for making electrical connections to terminals having a lug body with an externally accessible interior cavity and a binding screw. The connector bar includes an elongated body having two ends and made of electrically conductive material. At least one of the ends having a solid cross-section with a configuration which creates less distortion in the sides of the lug body compared to a round cross-section configuration when the binding screw contacts the end with torque applied for making the pre-determined mechanical and electrical connection. Preferably, the cross-section configuration of the end is defined by a flat top surface larger in width than the contact area of the binding screw, two arcuate sides having an arc value approximately the same as the interior cavity of the lug body, and a flat bottom surface smaller in width than the top surface. The present invention also provides a main breaker and a panel assembly connected by the above described connector bar in a load center.

Connector bar for load center interior assembly

A retainer plate is pivotally mounted on a panelboard cabinet door lock housing, which carries a latch for locking the door. A detent on the plate engages in a rabbet opening to enable limited opening movement of the door in response to the pressure developed by arc gases generated by fault currents passing through a tripped circuit breaker in the panelboard cabinet. For ordinary opening movement, the lock latch is manually operated to pivot the retainer plate and disengage the detent from the rabbet opening.

Panelboard vent assembly

The following specification describes a cover for a panelboard with the cover carrying spring biased latch clamp assemblies for engaging the flanges formed on the side walls of the panelboard cabinet.

Growing community of inventors

Lexington, KY, United States of America

Norman M Newsome