US3739109A - Safety disconnect switch - Google Patents
Safety disconnect switch Download PDFInfo
- Publication number
- US3739109A US3739109A US00255093A US3739109DA US3739109A US 3739109 A US3739109 A US 3739109A US 00255093 A US00255093 A US 00255093A US 3739109D A US3739109D A US 3739109DA US 3739109 A US3739109 A US 3739109A
- Authority
- US
- United States
- Prior art keywords
- rotor
- support element
- contact
- biasing
- cam
- Prior art date
- 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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-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/001—Means for preventing or breaking contact-welding
Definitions
- a backup cam system becomes operational should the contact-carrying axially movable element remain stuck to circuit connectors during reverse rotation of the operator controlled rotor.
- This invention relates to a safety override disconnect switch which is particularly adapted for use in the main electrical power supply of heavy equipment such as mining machinery and vehicles and the like. These switches are designed for carrying high amperage, for example 400 amps. A preferred embodiment also provides a positive safety disconnecting action in the event the switch contacts stick together, and normal operation of the switch fails, for any reason.
- FIG. 1 is a side view of a preferred embodiment of the switch of the present invention in an enclosure which is shown in cross section;
- FIG. 2 is an enlarged elevational crosssectional view of the switch portion with the switch in the open" position and taken along the line 22 in FIG. 1;
- FIG. 3 is an enlarged side view of the switch with the contacts in the closed position
- FIG. 4 is an enlarged side view showing the relative position of the operating elements in the event the electrical contact stick, during normal disconnect operation;
- FIG. 5 is an enlarged side view illustrating the positive lifting action which forces the contacts to separate
- FIG. 6 is a top cross-sectional view taken approximately along the line 6-5 In FIG. 5;
- FIG. 7 is a fragmentary cross-sectional view taken approximately along the line 7-7 in FIG. 5;
- FIG. 8 is an exploded perspective view showing the various elements of the switch of the presentinvention.
- Switch 10 is shown mounted on a face plate 12 of a housing 14.
- Housing 14 is preferably of the explosionproof type, and many constructions of explosion-proof housings are presently available commercially. Consequently the details of the expoIsion-proof construction features can be conventional and will not be discussed further hereinafter, since they are not part of the present invention.
- the switch 10 is operated by means of shaft 16 which is controlled by handle 18.
- FIG. 8 shows only the structural elements actually associated with switch 10.
- FIG. 8 shows only the structural elements actually associated with switch 10.
- FIGS. 3, 4, 5 and 6 are provided to illustrate the operation of a preferred embodiment.
- control shaft 16 passes through opening 18 in top plate 20 and a flange 21 at the inner end of shaft 16, is secured to a camcarrying rotor element 22.
- Flange segment 23 serves as a rotation stop to limit the extent of rotation of rotor 22.
- a centered, elongated collar 24 which is secured to and extends downwardly from rotor 22, mates over centered post 26 on axially movable contact-carrying and cam follower carrying driven member 28.
- the arrow, a, shown in FIG. 8 adjacent rotor 22 indicates that the operational movement of element 22 during switching pivotally about the central axis, and the arrow, 12, adjacent contact-carrying element 28 indicates that element moves in an axial direction during switching.
- Base element 38 carries a pair of fixed connectors 40, 41 on a power source side of the switch 10, and another pair of fixed connectors 43, 44, respectively, on an equipment side of switch 10.
- Contact bars 46, 48 are carried by axially movable element 28 and operate to connect and disconnect the power supply circuit.
- Contact bar 46 is sized to bridge between and butt against respective portions of connectors 40, 43 and second contact 48 is sized to bridge between and butt against respective portions of connectors 41, 44.
- axially movable element 28 resides between posts 50, 51, 52, 53 which extend axially upwardly, from base element 38 as seen in FIGS. 1 and 8.
- connectors 40, 41 reside between posts 50, 51, and connectors 43, 44 reside between posts 52, 53, respectively
- contact bars 46, 48 extend between these posts also, and this helps prevent substantial rotation of member 28 about the central axis indicated by the broken line 55 in FIG. 8.
- sleeves, or cups 32, 33 reside at least partially within and are axially movable within circular recesses 34, 35 and this relationship also aids in preventing substantial rotation of axially movable member 28 around the central axis 55.
- Bridging contact bars 46, 48 are also biased away from the central support portion 59 of axially movable element 28 by secondary springs 60, 61, 62, 63 which are shown in FIG. 7.
- bars 46, 48 are fixed with respect to element 28 in regard to movement of these elements about axis 55, but are movable within small limits with respect to element 28 in regard to axial movement, as indicated by the small arrows, c, in FIG. 8.
- support portion 59 of axially movable element 28 in spaced apart from bridging contacts 46, 48 because of the fact that the secondary springs 60, 61, 62, 63 bias these elements apart.
- contact elements 46, 48 come to bear against connectors 40, 43, and 41, 44, respectively, and continued axially downward movement of axially movable member 28 causes further compression of the secondary springs 60, 61, 62, 63 as indicated in FIG. 3 thus assuring continuous and very firm biasing of the bridge contacts 46, 48 against the respective connectors.
- Each contact 46, 48 is secured to support portion 59 of axially movable member 28 by means of threaded studs 65 and nuts 67.
- each pair of studs 65 and nuts 67 which is associated with the respective contact bars 46, 48 permit limited axial movement of bars 46, 48, respectively, but prevent rotation of these bars with respect to support portion 59 of axially movable element 28.
- the upper surface of axially movable member 28 includes a plurality of elevated cam follower structures
- Y 4 70, 71, 72, 73 each of which includes an inclined surface portion 76 and a horizontal surface portion 78.
- cam structures 80, 81, 82, 83 Extending downwardly from rotor 22 are a plurality of cam structures generally indicated by the numerals 80, 81, 82, 83, respectively, each of which have an inclined portion 86 and a horizontally disposed bottom portion 88 (See FIG. 5).
- Cam structures 80, 83 are located on rotor 22 to reside between respective cam follower structures -73, when the switch is in the open position (See FIG. 1), and respective top portions 76 of cam follower structures 70-73 and respective bottom portions 88 of cam structures -83 are positioned so that these horizontal surface portions are axially aligned and butting when the switch is in the locked closed configuration (See FIG. 3).
- Structures 70-73 and 8083 are referred to herein as the primary cam system, and this primary cam system operates, upon rotation of rotor 22 about axis 55, to drive the axially movable cam follower element 28 in an axial direction, either away from rotor 22 to close the switch under the driving force provided by rotation of handle 18, in which case primary springs 30, 31 are compressed, or upon rotation of handle 18 in an opposite direction, in which case the driving force causing axial movement of element 28 towards rotor 22 is provided by springs 30, 31 in normal operation.
- a second cam system is utilized as a backup system to positively separate contact bars 46, 48 from respective connectors in the event contact sticking occurs, and the bias of springs 30, 31 is insufficient to cause separation.
- Axially extending arms 90, 92 are directly secured to contact bars 46, 48, respectively (See FIG. 2). Adjacent the axially upward extreme of arms 90, 92 are cam follower pins 94, 96, respectively. Arms 90, 92 are of sufficient length and are so located as to extend upwardly through rotor 22 and reside within arcuate slots 100, 102, respectively. Slots 100, 102 include upwardly inclined cam surfaces 104, 106, respectively. Slots 100, 102 include upwardly inclined cam surfaces 104, 106, respectively which are located at that end of the slots 100, 102 which are the trailing ends as rotor 22 rotates about axis 55 when rotor 22 is being rotated in the switch opening direction.
- Arms 90, 92, pins 94, 96 and cam surfaces 105 provide what is referred to herein as a secondary cam system. Structural relationships and operation of the secondary cam system are further illustrated with the aid of FIGS. 3-6.
- FIG. 3 shows the switch in normal closed configuration, and it is noted that the primary cam system is in the configuration in which respective horizontal surface 78, and 88 are butting.
- the rotor 22 thus locks the axially movable element 28 in the switch closed configuration preventing the contact bars 46, 48 from moving axially away from the respective connectors.
- the secondary spring system comprising springs 60, 61, 62, 63 continually urges the contact bars against respective connector elements, against and overcoming the biasing action of the respective primary springs 30, 31.
- FIG. 4 is provided for the purpose of illustrating the relative configuration in that unlikely, but dangerous circumstance in which conductors 46, 48 stick to the respective connectors 40, 43, and 41, 44, respectively even though rotor 22 has been moved to the unlock configuration. Without the backup system referred to above, rotor 22 would have no further control over the separation of the contacts 46, 48 from their respective connectors. It is under these circumstances that the secondary cam surfaces 104 approach and engage cam follower pins 94, 96 as illustrated in FIGS. 4, 5 and 6. As the rotation of cam rotor 22 in the direction indicated by the arrow D in FIG. 4 leads to the configuration shown in FIG.
- FIG. 6 in which it is more clearly shown that secondary cam surfaces 104106 are slotted to permit arms 90, 92 to rotate spring cam follower pins 94, 96 against secondary cam surfaces 104, 106. It is essential that means be provided to maintain rotor 28 in a fixed axial position, and in the illustrated embodiment (as shown in FIG. 1) this is accomplished by securing rotor 22 close to plate 20 by securing handle 18 to shaft 16 close to housing 12 where rotor 22 is so positioned. This assures cooperative alignment of pins 94, 96 and secondary cam surfaces 104, 106, when axially movable element 28 is in stuck" position.
- the secondary cam system serves as a backup safety system, and that normally the biasing of contacts 46, 48 away from their respective connectors by springs 30, 31 is more than adequate to force separation and opening, to keep portions of the adjacent faces of the rotor 22 and cam-follower element 28 engaged. Biasing by secondary springs 60, 61, 62, 63 must be strong enough to overpower the bias of springs 30, 31, when the switch is in closed position.
- contacts 46, 48 When contacts 46, 48 are initially seated against connectors 40, 43 and 41, 44, respectively, the cam surfaces 86 and cam follower surfaces 76 will still be engaged, and cooperating thus causing continued forcing of the contacts 46, 48 against the respective conductors, along with compression of secondary springs 60, 61, 62, 63 until the horizontal surfaces 88, 78 slide across one another to the position shown in FIG. 3. It is noted that the contacts 46, 48 will be at the extreme limit of the rotational movement permitted them in the clockwise direction when seating or switch closing contact occurs. In normal switch opening operation, contacts 46-48 will merely move axially from their seated position. In the event sticking occurs, however, and the rotor 22 is turned to the configuration shown in FIG.
- an important feature of one aspect of the present invention involves the cooperation of cam elements on rotor 22 and axially movable elements 28 which constitutes means for positively and directly forcing the bridging contact apart from the fixed conductors, particularly by a cam system which applies both axial and rotational forces at the interface between the contacts and connectors.
- rotor 22 and axially movable element support 28 could be used as shown in FIG. 8 with connectors 40, 41, 43, 44 being positioned above contacts 46, 48 instead of below, and being supported by elements depending from top plate 20 instead of by bottom framing member 38.
- the cams on the adjacent faces of rotor 22 and axially movable support element 28, which are defined above as the primary cam system, serve as the positive cam means for separating contacts 46, 48 from connectors 40, 43 and 41, 44, respectively, and a secondary backup cam system is unnecessary.
- the cams on the adjacent faces serve the same function as the secondary cam system described and defined hereinbefore.
- a safety switch for opening and closing high amperage circuits comprising a frame; a rotor; means for rotating said rotor through a limited are around its axis; means for securing said rotor against substantial axial movement; an axially movable support element adjacent said rotor; said rotor and said support'element having mating alignment means for maintaining the alignment of said support element with said rotor, during the axial movement of said support element and rotation of said rotor, said alignment means comprising an annular element which is concentric with the axis of rotation of said rotor, and a mating element extending axially and closely fitting said annular element, cooperating cam means on adjacent faces of said rotor and said support element for moving said support element axially in a first direction in response to rotation of said rotor in a first rotational direction through said predetermined 'arc; movable switch contact means for completing said circuit carried on said support element; circuit connector means fixed with respect to said frame and positioned for contacting said contact means at the
- a safety switch for opening and closing high amperage electrical circuits comprising a frame; a rotor; means for rotating said rotor through a limited arc around its axis; means for securing said rotor against substantial axial movement; an axially movable support element adjacent said rotor said rotor and said support element having mating alignment means for maintaining the alignment of said support element with said rotor, during the axial movement of said support element and rotation.
- said alignment means comprising an annular element which is concentric with the axis of rotation of said rotor, and a mating element extending axially and closely fitting said annular element; cam means on adjacent surfaces of said rotor and said support element for moving said support element axially in the direction away from said rotor as said rotor is rotated through a predetermined are about said axis in a first direction; movable switch contact means for completing said circuit carried on said support element; circuit connector means fixed with respect to said frame and positioned for contacting said contact means as said support element is moved axially in the direction away from said rotor; primary biasing means for biasing said contact means away from said connectors, and secondary biasing means for biasing said contact means away from said support element and towards said connector means; said cam means including means for compressing said secondary biasing means after said contact means electrically connects with said connectors; and locking means for axially immobilizing said support element in the position in which said secondary biasing means is under compression, and said contact
- the switch of claim 2 which includes secondary cam means for positively disengaging said contact means from said connector means comprising a first cam element fixed with respect to said contact, and extending axially in the direction toward said rotor, said first cam element including cam follower means, and in which said secondary cam system includes cam surfaces on said rotor which are adapted to engage said cam follower means as the rotor is rotated about said axis in a switch-opening direction.
- a safety switch for opening and closing high amperage circuits comprising: an insulating rectangular base element, said base element having pairs of electrical connectors fixed at each side thereof, said base element including posts extending upwardly from each corner of said base element, said base element including a pair of recesses extending into said base element from the top thereof, each of said recesses being aligned with respective pairs of said connecting elements; coil spring biasing means residing in said recesses; an axially movable switch contact-carrying support element to which is secured a pair of cups adapted to mate over said coil spring biasing means, and mate within said recesses, said support element comprising a pair of contact means for bridging across and electrically connecting pairs of said respective connector means, said contact means extending between and being positioned closely adjacent to said posts, whereby rotation of said support elements around the rotors axis of rotation is substantially prevented; means for biasing said contact bars away from said support element; a rotor member, said support element and said rotor having alignment means for maintaining these
- the switch of claim 4 includes axially extending secondary cam follower means carried by said support element and substantially fixed with respect to said contact means, and secondary cam means on said rotor for engaging said secondary cam follower means as said rotor is rotated about its axis in a switch opening direction, said secondary cam follower means being positioned to engage said secondary cam surfaces in the event that said contacts stick to said connectors as said rotor is rotated in the switch opening direction to a position at which the contact carrier element would normally begin to move axially away from said connectors under the bias of said biasing means.
- said secondary biasing means comprises a pair of coil springs situated to bear against each of said contacts on each side of each primary biasing means
- said secondary cam means includes a plurality of arm means which extend axially away from said contact carrier element through slots in said rotor
- said secondary cam follower means comprises cam follower members extending from either side of said arm means radially
- secondary cam surface comprises an inclined plane situated at the walls of said slots which are trailing said slots as the rotor is moved in the switch opening direction, said inclined plane being sloped in the direction in which said cam follower means is urged in the direction away from said connectors.
- a safety switch for opening and closing high amperage circuits comprising a frame; a rotor; means for rotating said rotor through a limited are around its axis; means for securing said rotor against substantial axial movement; an axially movable support element adjacent said rotor; said rotor and said support element having mating alignment means for maintaining the alignment of said support element with said rotor, during the axial movement of said support element and rotation of said rotor, said aligment means comprising an annular element which is concentric with the axis of rotation of said rotor, and a mating element extending axially and closely fitting said annular element, cooperating cam means on said rotor and said support element for moving said support element axially in a first direction in response to rotation of said rotor through said predetermined arc; movable switch contact means for completing said circuit carried on said support element; circuit connector means fixed with respect to said frame and positioned for contacting said contact means at the limit of the motion of said switch contact means in
- a safety switch for opening and closing high amperage electrical circuits comprising a frame; a rotor; means for rotating said rotor through a limited arc around its axis; means for securing said rotor against substantial axial movement; an axially movable support element adjacent said rotor; cam means on adjacent surfaces of said rotor and said support element for moving said support element axially in the direction away from said rotor as said rotor is rotated through a predetermined arc about said axis in a first-direction; movable switch contact means for completing said circuit responsive to the movement of said support element; circuit connector means fixed with respect to said frame and positioned for contacting said contact means as said support element is moved axially in the direction away from said rotor; primary biasing means for biasing said contact means away from said connectors, and secondary biasing means for biasing said contact means away from said support element and towards said connector means; said cam means including means for compressing said secondary biasing means after said contact means electrically connects with said connectors
- a safety switch for opening and closing high amperage circuits comprising: an insulating rectangular base element, said base element having pairs of electrical connectors fixed at each side thereof, said base element including posts extending upwardly from each corner of said base element, said base element including a pair of recesses extending into said base element from the top thereof, each of said recesses being aligned with respective pairs of said connecting elements; coil spring biasing means residing in said recesses; an axially movable switch contact carrying support element to which is secured a pair of cups adapted to mate over said coil spring biasing means, and mate within said recesses, said support element comprising a pair of contact means for bridging across and electrically connecting pairs of said respective connector means; means for biasing said contact bars away from said support element; a rotor member, said support element and said rotor having means for maintaining these elements in operating alignment with respect to each other, said rotor and said support element having at the adjacent faces thereof cam means for driving said element in an axial direction away from said rotor,
- a safety switch for opening and closing high amperage circuits comprising: an insulating rectangular base element, said base element having pairs of electrical connectors fixed at each side thereof, said base element including posts extending upwardly from each corner of said base element, said base element including a pair of recesses extending into said base element from the top thereof, each of said recesses being aligned with respective pairs of said connecting elements; coil spring biasing means residing in said recesses; an axially movable switch contact-carrying support element to which is secured a pair of cups adapted to mate over said coil spring biasing means, and mate within said recesses, said support element comprising a pair of contact means for bridging across and electrically connecting pairs of said respective connector means; means for biasing said contact bars away from said support element; a rotor member, said support element and said rotor having means for maintaining these elements in operating alignment with respect to each other, said rotor and said support element having at the adjacent faces thereof cam means for driving said element in an axial direction away from said
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- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
Description
Claims (10)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US25509372A | 1972-05-19 | 1972-05-19 |
Publications (1)
Publication Number | Publication Date |
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US3739109A true US3739109A (en) | 1973-06-12 |
Family
ID=22966811
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US00255093A Expired - Lifetime US3739109A (en) | 1972-05-19 | 1972-05-19 | Safety disconnect switch |
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US (1) | US3739109A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4001529A (en) * | 1975-04-11 | 1977-01-04 | The Singer Company | Percentage timer |
US5262602A (en) * | 1992-08-14 | 1993-11-16 | Fmc Corporation | High current and low current switch |
AT399242B (en) * | 1985-02-08 | 1995-04-25 | Sprecher & Schuh Niederspannun | ACTUATING DEVICE FOR KEY SWITCH WITH ROTATING HANDLE |
US20050224324A1 (en) * | 2004-03-30 | 2005-10-13 | Sergio Bortolloni | Rotary service switch for the interior of electrical enclosures having a disconnect switch |
US20150155117A1 (en) * | 2013-12-04 | 2015-06-04 | Littelfuse, Inc. | Master disconnect switch with contact weld breaker |
FR3037436A1 (en) * | 2015-06-10 | 2016-12-16 | Viatemis | ELECTRICAL CIRCUIT BREAKER WITH MANUAL CONTROL |
US20200083005A1 (en) * | 2018-09-07 | 2020-03-12 | Leviton Manufacturing Co., Inc. | Disconnect switch with a detent mechanism to protect against over-rotation |
-
1972
- 1972-05-19 US US00255093A patent/US3739109A/en not_active Expired - Lifetime
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4001529A (en) * | 1975-04-11 | 1977-01-04 | The Singer Company | Percentage timer |
AT399242B (en) * | 1985-02-08 | 1995-04-25 | Sprecher & Schuh Niederspannun | ACTUATING DEVICE FOR KEY SWITCH WITH ROTATING HANDLE |
US5262602A (en) * | 1992-08-14 | 1993-11-16 | Fmc Corporation | High current and low current switch |
US20050224324A1 (en) * | 2004-03-30 | 2005-10-13 | Sergio Bortolloni | Rotary service switch for the interior of electrical enclosures having a disconnect switch |
US6974922B2 (en) * | 2004-03-30 | 2005-12-13 | Rockwell Automation Technologies, Inc. | Rotary service switch for the interior of electrical enclosures having a disconnect switch |
US20150155117A1 (en) * | 2013-12-04 | 2015-06-04 | Littelfuse, Inc. | Master disconnect switch with contact weld breaker |
US9373453B2 (en) * | 2013-12-04 | 2016-06-21 | Littelfuse, Inc. | Master disconnect switch with contact weld breaker |
EP3078047A4 (en) * | 2013-12-04 | 2017-08-02 | Littelfuse, Inc. | Master disconnect switch with contact weld breaker |
FR3037436A1 (en) * | 2015-06-10 | 2016-12-16 | Viatemis | ELECTRICAL CIRCUIT BREAKER WITH MANUAL CONTROL |
US20200083005A1 (en) * | 2018-09-07 | 2020-03-12 | Leviton Manufacturing Co., Inc. | Disconnect switch with a detent mechanism to protect against over-rotation |
US10923300B2 (en) * | 2018-09-07 | 2021-02-16 | Leviton Manufacturing Co., Inc. | Disconnect switch with a detent mechanism to protect against over-rotation |
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Legal Events
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AS | Assignment |
Owner name: ELTRA CORPORATION, OHIO Free format text: CERTIFIED COPY OF MERGER FILED IN THE OFFICE OF SECRETARY OF STATE OF DELAWARE ON JUNE 6, 1980, SHOWING MERGER AND CHANGE OF NAME OF ASSIGNOR;ASSIGNOR:ATREL CORPORATION;REEL/FRAME:003992/0237 Effective date: 19811020 Owner name: ELTRA CORPORATION, A CORP. OF NY Free format text: CERTIFIED COPY OF MERGER FILED IN THE OFFICE OF SECRETARY OF STATE OF DELAWARE ON JUNE 6, 1980, SHOWING MERGER AND CHANGE OF NAME OF ASSIGNOR;ASSIGNOR:ATREL CORPORATION (INTO);REEL/FRAME:003992/0237 Effective date: 19811020 |
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Owner name: ALLIED CORPORATION, NEW JERSEY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ELTRA CORPORATION;REEL/FRAME:004026/0293 Effective date: 19820531 Owner name: ALLIED CORPORATION; COLUMBIA RD. AND PARK AVE., MO Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ELTRA CORPORATION;REEL/FRAME:004026/0293 Effective date: 19820531 |
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Owner name: CANADIAN IMPERIAL BANK OF COMMERCE, NEW YORK AGENC Free format text: SECURITY INTEREST;ASSIGNOR:AMPHENOL CORPORATION;REEL/FRAME:004879/0030 Effective date: 19870515 |
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Owner name: MCGRAW-EDISON COMPANY,TEXAS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:AMPHENOL CORPORATION;REEL/FRAME:004740/0302 Effective date: 19870717 Owner name: MCGRAW-EDISON COMPANY, 1001 FANNIN, SUITE 4000, HO Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:AMPHENOL CORPORATION;REEL/FRAME:004740/0302 Effective date: 19870717 |
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Owner name: AMPHENOL CORPORATION, A CORP. OF DE, ILLINOIS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ALLIED CORPORATION, A CORP. OF NY;REEL/FRAME:004844/0850 Effective date: 19870602 Owner name: AMPHENOL CORPORATION, LISLE, ILLINOIS A CORP. OF D Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ALLIED CORPORATION, A CORP. OF NY;REEL/FRAME:004844/0850 Effective date: 19870602 |
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Owner name: AMPHENOL CORPORATION A CORP. OF DELAWARE Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:CANADIAN IMPERIAL BANK OF COMMERCE;REEL/FRAME:006147/0887 Effective date: 19911114 |