US3479104A - Door hinging arrangement in raintight enclosures - Google Patents

Door hinging arrangement in raintight enclosures Download PDF

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Publication number
US3479104A
US3479104A US3479104DA US3479104A US 3479104 A US3479104 A US 3479104A US 3479104D A US3479104D A US 3479104DA US 3479104 A US3479104 A US 3479104A
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Prior art keywords
door
enclosure
raintight
enclosures
latch
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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Herman H Kobryner
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Cooper Industries LLC
MURRAY Manufacturing CORP
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MURRAY Manufacturing CORP
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Assigned to COOPER INDUSTRIES, INC, A CORP.OF OHIO reassignment COOPER INDUSTRIES, INC, A CORP.OF OHIO ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: CROUSE-HINDS COMPANY
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    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/32Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing
    • E06B3/34Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with only one kind of movement
    • E06B3/38Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with only one kind of movement with a horizontal axis of rotation at the top or bottom of the opening
    • E06B3/385Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with only one kind of movement with a horizontal axis of rotation at the top or bottom of the opening specially adapted for furniture
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/30Cabinet-type casings; Parts thereof or accessories therefor
    • H02B1/38Hinged covers or doors

Description

N oirI l -8, 11969 I H. H.- KOBRYNER DOOR HINGING. ARRANGEMENT IN RAINTIGHT ENCLOSURES 'Filo'dDec. l, 1967 2 Sheets-Sheet 1 A FM AT TORN Y5 Nov. 18, 1969 H. H. KOBRYNER 3,479,104

DOOR HINGING' ARRANGEMENT IN RAINTIGHT ENCLOSURES Filed Dec. 1, 1967 2 Sheets-Sheet 2 IN VENTOR. HERMAN II. KOBRYAER United States Patent 3,479,104 DOOR HINGING ARRANGEMENT IN RAINTIGHT ENCLOSURES Herman H. Kobryner, Forest Hills, N.Y., assignor to Murray Manufacturing Corporation, Brooklyn, N.Y., a corporation of New York Filed Dec. 1, 1967, Ser. No. 687,343 Int. Cl. A47b 81/00; A47f 9/00; H02g 3/14 US. Cl. 312-229 8 Claims ABSTRACT OF THE DISCLOSURE A vertically opening lower access door for a two-compartment raintight electrical distribution box. The door is attached to the sides of the enclosure in a manner permitting it to be slid up and under the upper cover panel of the box to the closed position. Slotted brackets mounted on the inside of the door cooperate with supporting pins extending from the sides of the box adjacent the door to permit the door to be pivoted vertically about an axis above the door, to a locked open position. A latch is provided to hold the door up under the lower edge of the upper cover panel in the closed position.

BACKGROUND The invention relates to the structure of raintight outdoor enclosures for electrical equipment. More specifically, the invention deals with a hinging arrangement for a vertically opening lower door for a two-section enclosure, which provides the proper overlap of all mating surfaces required to render the enclosure raintight. It is frequently desirable that the enclosure of an electrical distribution center have two compartments. One compartment, usually the upper, houses the meter and its connections to the power supply. The lower compartment contains the power distribution panel. Two security interests are normally involved in such an installation. The power company desires exclusive access to the upper section to avoid possible by-pass of the meter, and controlled access to the lower section is desirable to the user.

Prior art enclosures of this variety have had two primary disadvantages. First, the lower access doors have been hinged to the upper section covering the meter and its connections so that removal of the upper cover necessitated removal of the lower door. Secondly, the lower door was hinged to the upper cover at a point below its upper edge. This method of hinging resulted in the uppxer edge of the door being rotated inwardly as the door was lifted. It was thus necessary to cut away portions of the side walls of the enclosure to provide for the passage of the top of the door when it was swung open.

The aforementioned cutting away of the sides of the enclosure resulted in less than a half inch overlap between the door and the sides of the enclosure, degrading its raintight qualities.

SUMMARY Briefly, the invention comprises a swing-up access door mounted to the inside of an enclosure. The door is supported by slotted brackets attached to the door, the slots of which extend above and below the top of the door, and are engaged by pins extending inwardly from the sides of the enclosure.

The upper cover panel of the enclosure is flared at the bottom to receive thereunder the upper edge of the door.

The slotted brackets permit the door to be slid in under the upper panel, and rotated about an axis above the top of the door to the open position. Locking pins are provided to engage the brackets when the door is in the open position and prevent downward rotation of the door.

"ice

A latch is provided to hold the door in the closed position up under the skirt of the upper portion of the enclosure.

The invention is an improvement over prior art in that it eliminates the necessity for cutting into the sides of the enclosure to provide room for passage of the top edge of the door when it is opened. This is accomplished basically by moving the rotational axis of the door to a point above its upper edge. Such an arrangement results in the door swinging through an are entirely outside of the enclosureythis eliminates any interference between the door and the sides of the enclosure, and enables construction of an enclosure which meets current and projected demands for overlap between the components of the enclosure.

The hinging arrangement of the invention has the additional advantage of permitting individual access to either the upper or lower portions of the enclosure. The upper section may be removed, for example, to service the meter without disturbing the lower door. Similarly, the lower door can be opened and closed without disturbing the upper cover. This permits individual control of access to each section by means of separate locks, or the like.

Other objectives, advantages, and various further features of novelty and invention will be pointed out or will occur to those skilled in the art from a reading of the following specification in conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS FIGURE 1 is a perspective view of a two-compartment electrical enclosure incorporating the door hinging arrangement of the invention;

FIGURES 2, 3, 4 and 5 are partial cut away side views of the access door and its supporting elements; and

FIGURE 6 is a view of the door hinging arrangement from the inside of the box.

DESCRIPTION OF THE PREFERRED EMBODIMENT Referring now to FIGURE 1, the lower door 1 of the invention is illustrated in the open position on enclosure 2. The upper cover panel 3 extends downwardly from under the top 4 of the enclosure 2, and overlaps the sides of the enclosure 2 by at least one half inch. The lower edge of this panel is offset 7 to form a skirt 5. Door 1 slides under skirt 5 to establish the required overlap with upper cover panel 3. The depth of the ofiset 7 is governed by the thickness of the door 1, and the height of the offset 9 by the extent of overlap desired between the door 1 and the upper panel 3.

Door 1 is held up under panel 3 by latch 20 as hereinafter described.

The door support mechanism comprises a slotted bracket 10 attached to the door 1 and extending perpendicular thereto in a vertical plane parallel to the side 8 of box 2. Retaining pins such as screws 11 are secured to the opposite sides 8, and extend into the interior of the enclosure and through the opposite slots 12 in the pair of brackets 10. The door is thus connected to the enclosure by the interaction of the slotted brackets 10 and screws 11.

FIGURE 2 illustrates the door 1 in the closed locked position with its upper edge 6 under the skirt 5 of the upper cover panel 3. Door 1 is retained in the locked position by a conventional latch 20.

Latch 20 is pivotally mounted to the side of the enclosure 2 by pivot pin 21. The body 20 of the latch rides through slot 22 in the bottom of the enclosure 2, and through slot 23 in the bottom of the door 1. A step 24 is cut in the inside lower edge of latch 20, which abuts the bottom edge 16 of door 1 after the door has been lifted into the locked position. Tension spring 25, attached to the side enclosure 2, and to latch 20, urges the latch 20 into engagement with edge 16 when the door 1 is elevated to the fully closed position.

The lower end 26 of latch 20 is beveled so as to facilitate its entry into slot 23 of door 1 and its forward motion until the door 1 is fully closed, at which point step 24 clears edge 16 and snaps into the locked position.

A comparison of FIGURES 2 and 3 serves to illustrate the functional relationship between the slotted brackets 10, slots 12 and screws 11. The slots 12 are parallel to the surface of door 1, and bracket 10 is offset therefrom by a distance 27 sufficient to allow it to clear the inside surface of upper cover panel 3 as door 1 is raised into the fully closed position. Slot 12 must extend far enough above the top edge 6 of door 1 to permit door 1 to slide down and clear of cover panel 3 and latch 20, and far enough below to allow door 1 to he slid into the fully closed position, under skirt 5.

To open the door, latch 20 is pulled toward door 1, moving the step 24 from under the bottom of door 1, and allowing the door to move downwardly relative to the enclosure until the top of slot 12 meets pin 11. Thus hinged, the door is free to swing out and away from the enclosure eliminating any interference between the top 6 of door 1 and the side walls 8.

FIGURES 4 and 5 illustrate the operation of the lockopen feature of the invention. From the unlocked (lowered) position illustrated by FIGURE 3, the door 1 is swung up, as indicated by arrow 28, and to a position perpendicular to the enclosure 2, and then pushed in as indicated by arrow 29. This action moves bracket in under pin 30, which prevents downward rotation of the door and thus supports it in the open position.

A recess 31 is provided in the end of bracket 10 at the point of engagement with pin 30- to prevent inadvertent displacement and consequent loss of this uplock. The weight of the door acts to keep pin 30 in recess 31.

Hinge pin 11 should be placed far enough below the lower edge of skirt 5 to allow for the passage of door 1 below the skirt when it is pushed in to engage pin 30; and there should be enough clearance between the upper end of bracket 10 and pin 30, when pin 11 is at the top of slot 12, to allow door 1 to swing to the open position.

FIGURE 6 illustrates the relative position of the elements of the hinging arrangement when door 1 is closed. The top 6 of door 1 has been raised up under skirt 5 of upper panel 3 to achieve the required overlap for a raintight enclosure. Latch 20 is engaged holding door 1 in the closed position.

Brackets 10 lie closely adjacent the sides 8 minimizing their interference with the contents of the enclosure.

FIGURE 6 also illustrates the location of latch 20', alongside the inside surface of one side 8 of the enclosure. This location facilitates attachment of the latch body 20 and spring 25.

I claim:

1. A door hinging arrangement in a raintight enclosure comprising;

a vertically swinging door,

support means for pivotally hanging said door comprised of;

horizontal pivot pins attached to the enclosure, and

vertically slotted brackets attached to said door and cooperatively engaging said pins to pivotally attach said door to the enclosure in a manner permitting rotary and radial movement of said door with respect to said pins,

a upper panel attached to said enclosure above said door and covering an upper portion of said enclosure, said upper cover panel having a lower edge which overlaps said door in the closed position, means to retain said door in the closed position, and said door having overlapping sides and bottom in contiguous relationship to portions of the enclosure.

2. The device of claim 1, wherein said pins extend inwardly from the sides of said enclosure and said slotted sulpport means are mounted on the inside of said door.

3. The device of claim 2, further comprising;

abutment means attached to said enclosure to engage said slotted brackets when horizontal and thereby hold said door in the open position.

4. The device of claim 3, wherein said pin means is comprised of;

a pair of pins extending respectively from the opposite sides of said enclosure, laterally and inwardly parallel to the surface of said door, and said slotted support means is comprised of;

a pair of brackets extending respectively from the opposite sides of and at right angles to said door with vertical slots therein parallel to the surface of said door and cooperatively engaging said pins.

5. An raintight enclosure for electrical equipment having a partially open front and an upper closure portion terminating in a rim offset outwardly from the opening and the sides of the enclosure,

a vertically swinging door covering the open portion of said front and having overlapping sides and bottom relative to said enclosure,

door hanging means to pivotally support said door comprised of slotted brackets attached to said door, and support pins attached to said enclosure engaging the slots in said brackets, wherein the engagement of said slots and said pins permits said door to pivot and slide upwardly under said oifset rim.

6. The enclosure of claim 5, further comprising;

means to retain said door in the closed position comprised of;

a notched arm pivotally attached to said enclosure engaging a bottom portion of said door, and spring means to urge said arm into said engaging position.

7. The enclosure of claim 6, wherein said door is comprised of;

a turned in bottom portion which underlies the bottom of the enclosure,

a passage through said underlying portion to accommodate said notched arm, so that said spring means urges said notched arm inwardly toward said enclosure, and

said notched arm engages the inner edge of said underlying portion bounding said passage.

8. The enclosure of claim 7, wherein said means to retain said door in the open position comprises;

abutment means attached to said enclosure inside and above said pin means, engaging said slotted brackets when said door has been opened and slid toward the enclosure, so that the inside upper ends of said brackets are positioned thereunder.

References Cited UNITED STATES PATENTS 1,729,687 10/ 1929 Savage 297-357 2,845,323 7/1958 Seibert 312-317 X 3,063,773 11/1962 Rosenquist et a1. 312-313 3,363,953 1/1968 Lacan 312-229 CASMIR A. NUNBERG, Primary Examiner U.S. Cl. X.R. 312-

US3479104D 1967-12-01 1967-12-01 Door hinging arrangement in raintight enclosures Expired - Lifetime US3479104A (en)

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Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3707653A (en) * 1972-02-28 1972-12-26 Westinghouse Electric Corp Front cover assembly for electrical panels
US3912348A (en) * 1974-11-11 1975-10-14 Gen Electric Raintight enclosure for electrical equipment
US4080020A (en) * 1976-09-02 1978-03-21 Candelaria Arthur R Cycle safety cover and locker device
US4312552A (en) * 1980-05-15 1982-01-26 Amp Incorporated Cross connect apparatus
US4325594A (en) * 1980-05-19 1982-04-20 Carrier Corporation Apparatus for securing a cover to an air conditioning unit
EP0284890A2 (en) * 1987-03-30 1988-10-05 Rittal-Werk Rudolf Loh GmbH & Co. KG Control desk with cabinet body and shutter
US5181166A (en) * 1991-05-31 1993-01-19 Schlumberger Canada Limited Securing mechanism for an electricity metering device
US5476316A (en) * 1993-12-28 1995-12-19 At&T Corp. Electronic equipment cabinet with improved door
US5706986A (en) * 1995-11-13 1998-01-13 Kimberly-Clark Corporation Water-shedding washroom dispenser
US5751543A (en) * 1994-07-29 1998-05-12 Eaton Corporation Sealing cover assembly for electrical bus connections
US5901868A (en) * 1996-08-29 1999-05-11 S&C Electric Compny Switchgear and enclosure therefor
US20040093692A1 (en) * 2002-11-15 2004-05-20 Cude James Russell Tri-action hinge and latching mechanism for a door panel
US20050017610A1 (en) * 2003-07-22 2005-01-27 Mistry Mahesh Balu Water-shedding indoor wall mounted cabinet
US20050103242A1 (en) * 2002-04-08 2005-05-19 Bartel David W. Safe
US20060285281A1 (en) * 2005-06-15 2006-12-21 Siemens Energy & Automation, Inc. Systems, devices, and methods for securing covers
US20070145871A1 (en) * 2005-10-04 2007-06-28 Christie Steven J Hinge System
US20110174200A1 (en) * 2010-01-16 2011-07-21 Bartel David W Lockable enclosure
US20140145568A1 (en) * 2012-11-28 2014-05-29 Memorial Sloan-Kettering Cancer Center Storage arrangement for medically-related transport or evacuation device(s)
US20140362497A1 (en) * 2013-06-10 2014-12-11 Hon Hai Precision Industry Co., Ltd. Power supply assembly
US20150159423A1 (en) * 2013-12-11 2015-06-11 Lite-On Electronics (Guangzhou) Limited Assembly having liftable lid and movable hinge module thereof
US20150382492A1 (en) * 2014-06-30 2015-12-31 Eaton Corporation Telescoping panels suitable for motor control center units
US10020642B2 (en) 2014-06-30 2018-07-10 Eaton Intelligent Power Limited Motor control center units with retractable stabs and interlocks using sliding portal shutters
US20180224153A1 (en) * 2017-02-03 2018-08-09 Johnson Controls Technology Company Air conditioning housing system
US10186847B2 (en) 2016-11-21 2019-01-22 Eaton Intelligent Power Limited Motor control center (MCC) units with slidable shutters
US10211606B2 (en) 2016-11-29 2019-02-19 Eaton Intelligent Power Limited Motor control center units with multi-purpose shutter cams and related units
US10742004B2 (en) 2017-12-20 2020-08-11 Eaton Intelligent Power Limited Motor control center (MCC) units with retractable power connector and interlocks including a power connector position interlock

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1729687A (en) * 1928-04-30 1929-10-01 Richard D Suddath Vehicle seat
US2845323A (en) * 1955-11-23 1958-07-29 Ekco Products Company Cutlery cabinet
US3063773A (en) * 1959-10-21 1962-11-13 Royalmetal Corp Collapsible desk or carrell structure
US3363953A (en) * 1965-11-03 1968-01-16 Telemecanique Electrique Closure device proof against projections of water for cover of casing or switchboard

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1729687A (en) * 1928-04-30 1929-10-01 Richard D Suddath Vehicle seat
US2845323A (en) * 1955-11-23 1958-07-29 Ekco Products Company Cutlery cabinet
US3063773A (en) * 1959-10-21 1962-11-13 Royalmetal Corp Collapsible desk or carrell structure
US3363953A (en) * 1965-11-03 1968-01-16 Telemecanique Electrique Closure device proof against projections of water for cover of casing or switchboard

Cited By (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3707653A (en) * 1972-02-28 1972-12-26 Westinghouse Electric Corp Front cover assembly for electrical panels
US3912348A (en) * 1974-11-11 1975-10-14 Gen Electric Raintight enclosure for electrical equipment
US4080020A (en) * 1976-09-02 1978-03-21 Candelaria Arthur R Cycle safety cover and locker device
US4312552A (en) * 1980-05-15 1982-01-26 Amp Incorporated Cross connect apparatus
US4325594A (en) * 1980-05-19 1982-04-20 Carrier Corporation Apparatus for securing a cover to an air conditioning unit
EP0284890A2 (en) * 1987-03-30 1988-10-05 Rittal-Werk Rudolf Loh GmbH & Co. KG Control desk with cabinet body and shutter
EP0284890A3 (en) * 1987-03-30 1989-05-31 Rittal-Werk Rudolf Loh GmbH & Co. KG Control desk with cabinet body and shutter
US5181166A (en) * 1991-05-31 1993-01-19 Schlumberger Canada Limited Securing mechanism for an electricity metering device
US5476316A (en) * 1993-12-28 1995-12-19 At&T Corp. Electronic equipment cabinet with improved door
US5751543A (en) * 1994-07-29 1998-05-12 Eaton Corporation Sealing cover assembly for electrical bus connections
US5706986A (en) * 1995-11-13 1998-01-13 Kimberly-Clark Corporation Water-shedding washroom dispenser
US5901868A (en) * 1996-08-29 1999-05-11 S&C Electric Compny Switchgear and enclosure therefor
US20060283361A1 (en) * 2002-04-08 2006-12-21 David Warren Bartel Safe
US7516709B2 (en) * 2002-04-08 2009-04-14 David Warren Bartel Safe
US20050103242A1 (en) * 2002-04-08 2005-05-19 Bartel David W. Safe
US7096801B2 (en) * 2002-04-08 2006-08-29 David Warren Bartel Safe
US6959972B2 (en) * 2002-11-15 2005-11-01 American Standard International Inc. Tri-action hinge and latching mechanism for a door panel
US20040093692A1 (en) * 2002-11-15 2004-05-20 Cude James Russell Tri-action hinge and latching mechanism for a door panel
US20050017610A1 (en) * 2003-07-22 2005-01-27 Mistry Mahesh Balu Water-shedding indoor wall mounted cabinet
US20060285281A1 (en) * 2005-06-15 2006-12-21 Siemens Energy & Automation, Inc. Systems, devices, and methods for securing covers
US7599173B2 (en) * 2005-06-15 2009-10-06 Siemens Energy & Automation, Inc. Systems, devices, and methods for securing covers
US20070145871A1 (en) * 2005-10-04 2007-06-28 Christie Steven J Hinge System
US7934782B2 (en) * 2005-10-04 2011-05-03 Christie Steven J Hinge system
US20110174200A1 (en) * 2010-01-16 2011-07-21 Bartel David W Lockable enclosure
US8393280B2 (en) 2010-01-16 2013-03-12 David W. Bartel Lockable enclosure
US8833274B2 (en) 2010-01-16 2014-09-16 David W. Bartel Lockable enclosure
US20140145568A1 (en) * 2012-11-28 2014-05-29 Memorial Sloan-Kettering Cancer Center Storage arrangement for medically-related transport or evacuation device(s)
US9173790B2 (en) * 2012-11-28 2015-11-03 Memorial Sloan-Kettering Cancer Center Storage arrangement for medically-related transport or evacuation device(s)
US20140362497A1 (en) * 2013-06-10 2014-12-11 Hon Hai Precision Industry Co., Ltd. Power supply assembly
US20150159423A1 (en) * 2013-12-11 2015-06-11 Lite-On Electronics (Guangzhou) Limited Assembly having liftable lid and movable hinge module thereof
US9752374B2 (en) * 2013-12-11 2017-09-05 Lite-On Electronics (Guangzhou) Limited Assembly having liftable lid and movable hinge module thereof
US9451718B2 (en) * 2014-06-30 2016-09-20 Eaton Corporation Telescoping panels suitable for motor control center units and related motor control centers
US20150382492A1 (en) * 2014-06-30 2015-12-31 Eaton Corporation Telescoping panels suitable for motor control center units
US9888589B2 (en) 2014-06-30 2018-02-06 Eaton Corporation Bucket assemblies for motor control centers and related motor control centers
US10020642B2 (en) 2014-06-30 2018-07-10 Eaton Intelligent Power Limited Motor control center units with retractable stabs and interlocks using sliding portal shutters
US10637217B2 (en) 2014-06-30 2020-04-28 Eaton Intelligent Power Limited Motor control center units with retractable stabs and interlocks
US10320162B2 (en) 2014-06-30 2019-06-11 Eaton Intelligent Power Limited Motor control center units with retractable stabs and interlocks
US10206293B2 (en) 2014-06-30 2019-02-12 Eaton Intelligent Power Limited Bucket assemblies with electrically grounded front panels for motor control centers and related motor control centers
US10186847B2 (en) 2016-11-21 2019-01-22 Eaton Intelligent Power Limited Motor control center (MCC) units with slidable shutters
US10720761B2 (en) 2016-11-21 2020-07-21 Eaton Intelligent Power Limited Motor control center (MCC) units with slidable shutters
US10211606B2 (en) 2016-11-29 2019-02-19 Eaton Intelligent Power Limited Motor control center units with multi-purpose shutter cams and related units
US20180224153A1 (en) * 2017-02-03 2018-08-09 Johnson Controls Technology Company Air conditioning housing system
US10742004B2 (en) 2017-12-20 2020-08-11 Eaton Intelligent Power Limited Motor control center (MCC) units with retractable power connector and interlocks including a power connector position interlock

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AS Assignment

Owner name: COOPER INDUSTRIES, INC, 1001 FANNIN, HOUSTON, TEXA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CROUSE-HINDS COMPANY;REEL/FRAME:004103/0954

Effective date: 19830223