Federal-hoffman, Inc.

Hoffman Enclosures Inc.

Robert G Lau

David A Swan

Trent T Jones

Craig E Schinzel

John S Abbott

Joseph D Ricke

William R Dorr

John J Jancsek

Timothy Gordon Lange

Todd J Mickley

Klaus Kern

Robert Marvin Kalstabakken

Marc T Fuller

Harold Dean Lakoduk

Ronald Mathew Wacker

Kent Gregory Messing

Henning Wick

Jeffrey A Earles

Scott Allen Schramske

Steve Jerome Johnson

Sheldon Odell Modrow

Erik E Emstad

Creighton R Thompson

Terry L Munich

J Michael Dwyer

Viktor J Jegers

Rieger Uwe

A locking mechanism for an enclosure. The locking mechanism includes a housing with an outer surface having a first tab fixedly attached to the housing. The housing is adapted to be coupled to a door by pressing the housing through a latch housing of a latching mechanism of the door until the first tab springs out and locks the housing in place in the latch housing. The locking mechanism includes an insert adapted to be positioned through the housing and adapted to be coupled to a flange of the latching mechanism of the door. The insert includes either a handle or a knob. Rotation of the insert rotates the flange to lock the door.

Locking mechanism for configurable enclosure

An electrical enclosure having a housing including a door. The electrical enclosure includes a frame assembly and a plurality of fasteners. The frame assembly has a first side including a planar portion opposite the door. The plurality of fasteners are disposed through the frame assembly for mounting the frame assembly to the door such that the fasteners do not protrude beyond the plane of the planar portion.

Frame assembly for electrical enclosure

An electrical enclosure includes a frame and a seismic subframe. The seismic subframe includes vertical frame members interconnecting with braces at the top and bottom and opening at the front and rear of the enclosure. The assembly mounts to the rectangular frame of the enclosure. Grid straps extend from front to rear to connect the assemblies and provide additional bracing. Front and rear panels include gusset type braces at the corners mounted to the panels that engage inner edges of the framework to provide positioning as well as support.

Seismic subframe for electrical enclosure

A hinge (20) includes a hinge body (30) pivotally connected with a hinge pin (70) to a leaf (26). The hinge body (30) includes a base (32) supporting a riser portion (36) connected to knuckles (34). The hinge body is configured so that geometry holds a pin retaining member (50). The retaining member (50) includes a portion (56) inserting into a side opening (46) of the knuckles (34) which engages angular groves (74) and (76) formed in the pin (70).

Enclosure hinge

A hinge includes a first leaf member with a pair of knuckles receiving a hinge pin therethrough. The knuckles include a retainer member which extends into the path of the pin. Annular grooves formed in the pin receive the retainer member to keep the pin from easily sliding in and out of the hinge. One of the grooves includes a straight side and a tapered side while the second groove includes a pair of tapered sides for allowing the retainer member to slide over the second groove but not over the first groove. In this manner, the pin may not be forced beyond the retainer member and is held in place even when pulled out of the first knuckle for removing secondly.

Hinge system

A locking handle for an access door includes a housing with a cam rotatably mounted within the housing. The cam is connected to a locking pin for the pin to move transversely in response to rotational movement of the cam. A locking bar is slidably received on the housing and moved to a locked position to prevent rotation of the cam.

Locking door handle

A latch system which includes a latch bar slidable up and down on an interior of an enclosure door. The latch system has a rack member mounted on the latch bar extending through an orifice in the door to engage an actuator on the exterior of the door. The latch bar has glides and retainer clips mounted to the latch bar for positioning the bar relative to the door. The door may include a gasket for sealing an enclosure, with the latch bar mounting outside of the sealed area. Retainer fingers include a roller which engage a latch catch mounted to the enclosure frame. The finger members and the rack members are reversible for mounting in either direction so that the door may be reversed at any time. The latch catches are configured for receiving a finger member at either end for engagement of the door.

Latch system

A latch for securing a cover or door to an enclosure provides a dust and water tight seal. The latch has a housing in which an activator is rotatably mounted. The latch housing has a depression formed in one of its surfaces. A gasket is designed to fin in the depression providing a seal between the activator and the housing. In the preferred embodiment the latch is a quarter-turn latch. The rotation of the latch is limited between a locked and unlocked position substantially 90.degree. apart.

Enclosure latch

A cabinet has overlapping doors to cover a cabinet opening. The overlapping doors include sealing gaskets formed on interior surfaces of the doors. The doors are shaped for the gaskets of the doors to overlap and abut in sealing engagement upon closure of the doors.

Cabinet with overlapping doors

Combined handle and lock unit

A restructurable enclosure having a plurality of mounting blocks which are secured to the body of the enclosure at various spaced locations around and adjacent the outer peripheral portions of the door and wall panel openings therein. Each of the mounting blocks includes a plurality of threaded bores in the bottom surface thereof which communicate with openings in the enclosure body to facilitate permanent mounting of such blocks to the enclosure, and to facilitate attachment of sub-panels and other assemblies within the interior thereof, without obstructing the same. Each block also includes a pair of threaded or open bores extending inward from its outer mounting surface to facilitate mounting of the enclosure door or various wall panels to the enclosure solely from the exterior of the enclosure, without the need for accessing the interior thereof. The mounting blocks are arranged such that a door panel connected thereto can be easily removed with its hinges intact and reversibly remounted from the outside of the enclosure without moving or adding any additional parts. The door and various wall panels which are mounted to such blocks are also readily interchangeable, if desired, since the mounting blocks are cooperatively mounted in similar positions on both the front and rear sides of the enclosure.

Restructurable enclosure with multi-purpose mounting blocks

A system for installing and properly positioning a sub-panel mounting board within a freestanding electrical enclosure, wherein the base sections of the enclosure frame form a continuous rectangular guide channel around the inner periphery of the enclosure which is designed to receive in opposite parallel channel segments thereof a pair of channel followers that are connected to opposite lower corners of the mounting board. Each channel follower has a depending leg which extends into its respective channel segment and supports the mounting board during installation thereof. The depending leg of each channel follower engages the bottom of the channel when the mounting board is tilted forward for installation within the enclosure. Once the mounting board is installed and positioned upright, each channel follower rests upon a mounting flange formed by the enclosure frame, thereby allowing the mounting board to be secured thereto. Each channel follower further includes a depending locking lug which extends into the rearmost cross channel section when the mounting board is positioned such that each channel follower is in its rearmost position within the channel segment in which it travels. In such position, the mounting board is automatically locked in place by the locking lug, thereby preventing any movement thereof.

Sub-panel guide system for electrical enclosure

Low-profile enclosure handle

A multiple point latching system, for use with single or multi-door enclosures, which utilizes a plurality of combinational cam-pinion latch members which are rotatably mounted to the inside surface of the door and simultaneously driven by an elongated rack which extends between such latches and disconnectedly inter-engages therewith. Each combinational cam-pinion latch includes a plurality of teeth which disconnectedly inter-engage with apertures in the rack to cause simultaneous rotation thereof. A handle which is connected to the door and accessible from the exterior thereof drives one of the latch members which in turn causes movement of the rack and consequent rotation of all other combinational cam-pinion latches. Such latches are rotatably mounted at spaced locations along the free peripheral portions of the enclosure door. Each latch has a camming surface which engages the enclosure and draws the door into tightly sealed relation therewith upon closure of the door and movement of the handle to cause such latches to simultaneously move into their latched position. All cam-pinion latches and other associated latching hardware is mounted on the door in such a position that it is outside the sealed gasketed interior of the enclosure when closed and latched thereto, with no portions thereof protruding through the body of the enclosure to create possible leakage problems therein.

Growing community of inventors

Anoka, MN, United States of America

Robert G Lau