US3617991A - One-piece connector including release means - Google Patents

One-piece connector including release means Download PDF

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Publication number
US3617991A
US3617991A US654504A US3617991DA US3617991A US 3617991 A US3617991 A US 3617991A US 654504 A US654504 A US 654504A US 3617991D A US3617991D A US 3617991DA US 3617991 A US3617991 A US 3617991A
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US
United States
Prior art keywords
sleeve
locking member
release
connection
tab
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
Application number
US654504A
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English (en)
Inventor
Bernard Edward Shlesinger Jr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TE Connectivity Corp
Original Assignee
AMP Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by AMP Inc filed Critical AMP Inc
Application granted granted Critical
Publication of US3617991A publication Critical patent/US3617991A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/633—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627—Snap or like fastening
    • H01R13/6277—Snap or like fastening comprising annular latching means, e.g. ring snapping in an annular groove
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/633—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only
    • H01R13/635—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only by mechanical pressure, e.g. spring force
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2101/00—One pole
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles

Definitions

  • This invention relates to electrical connector plugs, and more particularly to spring latch hand plugs which lock the plug in a receptacle such as a panel or board and which is provided with means on the rear of the plug for manually releasing the plug from the board.
  • This application is related to onepiece plug connectors such as disclosed in my U.S. Pat. No. 3,275,973 issued Sept. 27, 1966, and my application, Ser. No. 558,043 June 16, I966.
  • HISTORICAL BACKGROUND In present day electrical equipment, it is common practice to employ connector panels or boards wherein connector plugs are inserted selectively into receptacles to connect and disconnect various control circuits. It is desirable that the plug be easily removable from the connector panel by a pull on the rear portion thereof but not removable by a push on the front or tip portion of the contact member.
  • snap latch plugs have been provided with a detent system that includes a spring detent member and a detent locking means that are complex, and generally include multiple parts which are expensive to manufacture and to incorporate in assembly in the plug body. If the number of parts has been reduced, there still has been the problem of providing a detent system which is capable of allowing the plug to be readily inserted and removed from a plugboard, to maintain the plug securely in position, and to hold the plug in position upon a force being applied to the front or tip portion thereof.
  • OBJECTS AND SUMMARY It is, therefore, an object of the present invention to provide a one-piece snap latch plug which is simple and economical to manufacture and which can be blanked from a sheet of material by simple stamping operation and which positively locks the plug in the panel or board or the like from being accidentally pushed out or pulled out.
  • a further object of this invention is to provide a snap latch plug with a detent system which is rugged and will retain substantially its original characteristics over a long life.
  • An additional object of this invention is to provide a latch means for a one-piece plug which can be manually operated either by a tool or by hand.
  • Still a further object of this invention is to provide a plug which can be precisely controlled under manufacturing conditions.
  • Another object of this invention is to provide a release mechanism for one-piece plug which requires little force to operate due to the utilization of a fulcrum principle.
  • Still another object of this invention is to provide a spring release latching mechanism for a one-piece plug.
  • this invention relates to a one-piece plug having a manually releasable latching member which in normal position maintains the plug in a block against pull out or pushout.
  • FIG. I is a plan view of the configuration of a piece of material for a plug connector prior to formation thereof;
  • FIG. 2 is a perspective view of the plug connector after formation thereof from the material of FIG. 1;
  • FIG. 3 is a sectional view in elevation of the plug connector of FIG. 2 in fully inserted position in an aperture of a plugboard showing the locking number in latched position;
  • FIG. 4 is a sectional view in elevation similar to that of FIG. 3 and showing the locking member in unlatched position for removal of the plug from the plugboard;
  • FIG. 5 is a top plan view of the plug illustrated in FIG. 2.
  • FIGS. 6 through 9 are fragmentary cross-sectional views showing other embodiments of the present invention with FIG. 7 showing the front portion of a releasing tool for the locking mechanism;
  • FIG. 10 is a plan view of a blank illustrated in FIGS. 7 and 9;
  • FIG. 11 is a plan view of a blank for an additional embodiment of the present invention.
  • FIG. 12 is a sectional view in elevation of the plug connector of FIG. 11 illustrated with the conductor lead crimped and sealed;
  • FIG. 13 is an enlarged cross-sectional view taken along the lines 13-13 in FIG. 112 and viewed in the direction of the arrows;
  • FIGS. M and are a cross-sectional view and a planned view respectively of a formed plug and a blank illustrating yet another embodiment of this invention.
  • FIGS. 16 and 117 are a cross-sectional view and a planned view respectively of a formed plug connector and the blank illustrating yet another embodiment of this invention.
  • FIGS. 18 and 19 are cross-sectional views illustrating yet additional embodiments of this invention.
  • FIGS. 2 and 5 The plug 10 as best shown in FIGS. 2 and 5 are formed from a blank 12.
  • the blank consists of a forward portion M, an intermediate portion I6, and a rear portion 18.
  • the blank 12 has a rectangular appearance.
  • the forward portion M is provided with cutouts 20 and 22 which form the nose 24 of the plug it).
  • a locking or latching member 26 is formed in the blank 12 and extends parallel to the left edge 23 of the blank 12 as viewed in the drawings.
  • the latching member 26 is spaced from the edge 28 a distance equal to the forward edge 30 of the slot 32.
  • a shoulder 34 substantially equal in length to the forward edge 30 is formed on the other side of the latching member 26.
  • the right-hand edge 36 of the blank 12 is cutout as at 38 so as to form a shoulder 40.
  • the rear portion I8 includes a struckout stop 42 and a cutout notch 44 formed in the right edge 36.
  • the locking member 26 forms a detent 46 and a release finger 48 which is formed in the release arm 50.
  • the detent 416 is integrally hinged at 52 to the forward portion 114..
  • the hinge 52, the forward edge 30, the shoulder 34, and the shoulder 46 form a slot 54 for receiving the detent 46 which is inclined rearwardly and is provided with an abutment member 56 which projects into the slot 54 in an area adjacent the shoulder 4l0.
  • the release arm 50 extends from the forward portion M past the intermediate portion 16 to the rear portion 18.
  • the lead 58 is crimped or otherwise secured to the rear portion 18.
  • the crimped area 60 may be insulated by an insulating cap 62.
  • the release finger extends upwardly from the release arm into the cutout notch M as best illustrated in FIG. 5.
  • the plug is shown inserted into a panel, base, receptacle or the like 64.
  • the nose 66 of the plug formed by the nose cutouts 20 and 22 engages the contact member 68 which may project from another board, etc.
  • FIG. 3 shows the latching member 26 with the detent 46 and release finger 43 in locking engagement so as to prevent push out or pull out of the plug 10.
  • FIG. 4 the latching member 26 is shown in a release position with the detent 46 and the release finger 48 depressed to allow for withdrawal of the plug 10.
  • the blank 12 from which the plug is formed is of conductive metal and may be plated as desired.
  • FIGURES 6 THROUGH 10 the plug is provided with a locking member 72 having a detent 74 and a release finger 76.
  • the detent 74 projects from the slot 78 and the release finger 76 projects from the slot 80.
  • the slot 78 is on the forward member 82 and the slot is on the rear member 84.
  • a fulcrum 86 is provided in the intermediate member 88 to permit a locking action by the locking member 72.
  • the solid line position of locking member 72 as illustrated in FIG. 6 shows the locking position and the phantom line position illustrates the release position of the locking member 72.
  • a stop 90 similar to stop 42 is provided.
  • the fulcrum 86 is formed by dimpling or indenting the plug 70 in the intermediate member 88.
  • the plug 92 is provided with a struckout stop 94 in the rear portion 96.
  • the front portion 98 includes the detent 100 and the release arm 102.
  • the release arm 102 extends rearwardly and beneath the cutout 104 which permits the insertion of a release tool 106 which engages the release arm 102 to depress it thereby to hinge downwardly the detent 100 in the slot 108 thereby permitting withdrawal of the plug 92.
  • the plug 110 shows the locking member 112 as having a detent 114 and the release arm 116 with a release finger 118 having a release flange or shoulder 120.
  • the release finger 118 extends through a slot 122 opposite to the slot or cutout 124 for the detent 114.
  • the slots or cutouts 122 and 124 are axially aligned.
  • a strengthening member 126 is provided in the release arm in order to reduce bowing of the release arm and permit greater leverage of action so as to depress the detent 114 when the release flange on the release finger is lifted.
  • the strengthening or reinforcing means 126 is best illustrated in FIG. 10. It may be bent downwardly as illustrated in FIG. 8.
  • FIG. 9 shows a plug 128 with a locking member 130 provided with a detent 132 and the release arm 134.
  • the release arm 134 is provided with a release finger 136 extending from the cutout 138.
  • a stop 140 is provided in the plug 128.
  • the release arm as shown in FIG. 9 extends rearwardly from the bottom of the plug towards the top of the plug 128.
  • FIG. 10 illustrates the blank 144 used to form the plug illustrated in FIG. 9.
  • the shoulders 146 and 148 and the edge 150 form the front and rear walls of the slot 142.
  • FIGURES 11 THROUGH 15 the blank 152 is provided with a locking member 154 extending rearwardly from a connecting piece 156.
  • Struckout 158 is the stop member and cutout 160 receives the connecting piece 156 which is turned inwardly as illustrated in FIGS. 12 and 13.
  • Cutout 162 receives detent 164.
  • Cutout 166 receives release finger 168. It is to be noted that the cutouts 162 and 166 are on the opposite side of the plug 170 from the cutout 160.
  • the plug 172 formed from the blank 174 illustrated in FIG. 15 shows the connecting piece 176 in the rear portion of the plug rather than in the forward portion as illustrated in FIGS. 11 through 13.
  • the plug 172 is provided with a stop or struckout 178.
  • the cutout 180 receives a tool operating similar to that described with reference to that of FIG. 7.
  • the slot or cutout 182 receives the detent 184 formed in the locking member 186. It is to be noted that the locking member 186 extends forwardly in FIGS. 14 and 15 rather than rearwardly as in the previous figures described.
  • the cutout 188 is provided for receiving the connecting piece 176 of the locking member 186.
  • FIGURES 16 THROUGH 19 In FIGS. 16 through 19, the locking members generally indicated by 190 extend forwardly from the rear portion 192. There is not connecting piece as in FIGS. 11 through 15.
  • the plug 194 of FIG. 16 if formed from the blank 196 of FIG. 71.
  • the detent 198 extends into the slot or cutout 200.
  • the release cutout 202 is made to receive a tool for depression of the locking member 190 to release the detent 198 for withdrawal or insertion of the plug.
  • a stop 204 is provided for limiting the insertion of the plug in a plugboard as heretofore described with reference to other modifications.
  • the plug 206 is provided with a fulcrum 108 for the locking member 210.
  • the cutout 212 permits insertion of a tool for depressing the locking member 210 to withdraw the detent 214 from the slot 126.
  • the fulcrum 208 is formed in the intermediate section of the plug which is the portion of the plug axially encompassed between the front and rear surfaces of the board in which the plug is inserted.
  • FIG. 19 shows the plug 218 with the locking member 220 having a release finger or member 222 which is formed by doubling the locking member back on itself.
  • the release finger 222 extends into the slot 224.
  • the locking detent 226 is withdrawn into the slot 228 to permit withdrawal of the plug 218.
  • a stop member 230 is provided for purposes aforementioned.
  • a one-piece electrical plug connector adapted to be inserted within a receptacle comprising:
  • a spring locking member connected to and integral with said sleeve and extending inside said sleeve and including a detent extending through said detent opening and a release arm,
  • said sleeve having a longitudinal seam extending from front to rear along one side of said sleeve and g. said spring locking member extending in a direction generally parallel to said seam.
  • said locking member connection to said sleeve is on said front portion.
  • said locking member connection and said sleeve is on the side of said sleeve opposite said detent opening.
  • said locking member connection to said sleeve is on the same side of said sleeve as said detent opening.
  • said locking member connection to said sleeve is on the side of said sleeve opposite said release opening.
  • said locking member connection to said sleeve is on the same side of said sleeve as said release opening.
  • said locking member connection to said sleeve is on the side of said sleeve opposite said release and detent openings.
  • said locking member connection to said sleeve is on the same side as said release and detent openings.
  • said locking member connection is axially offset from said detent opening.
  • said locking member includes reinforcing means.
  • a one piece plug connector as in claim 2 and wherein:
  • said sleeve includes a fulcrum for said locking member.
  • said fulcrum is in said intermediate portion.
  • said release arm includes a projecting member positioned adjacent said release opening for release actuation of said release arm.
  • said release arm projecting member includes a lift flange.
  • said release arm is substantially flat.
  • said locking member connection to said sleeve is on said rear portion.
  • said locking member connection and said sleeve is on the side of said sleeve opposite said detent opening.
  • said locking member connection to said sleeve is on the same side of said sleeve as said detent opening.
  • said locking member connection to said sleeve is on the side of said sleeve opposite said release opening.
  • said locking member connection to said sleeve is on the same side of said sleeve as said release opening.
  • said locking member connection to said sleeve is on the side of said sleeve opposite said release and detent openings.
  • said locking member connection to said sleeve is on the same side as said release and detent openings.
  • said locking member connection is axially offset from said detent opening.
  • said rear portion includes a stop member shaped for positioning abutment against a surface of the receptacle.
  • said locking member includes reinforcing means.
  • said sleeve includes a fulcrum for said locking member.
  • said fulcrum is in said intermediate portion.
  • said release arm includes a projecting member positioned adjacent said release opening for release actuation of said release arm.
  • said release arm projecting member positioned adjacent said release opening for release actuation of said release arm includes a lift flange.
  • a one-piece plug connector comprising:
  • a spring locking member including a hinge connected to and integral with said sleeve
  • said spring locking member including a detent having an upwardly and rearwardly extending portion projecting above the surface of said sleeve and a downwardly extending portion connected to said upwardly extending portion substantially perpendicular with the axis of said sleeve,
  • said front edge of said detent opening being said hinge
  • said sleeve having means integral therewith for moving said detent to a release position.
  • said rear portion includes a stop member projecting outwardly from said sleeve for positively positioning said plug connector in a receptacle.
  • An electrical terminal of the type adapted to be inserted within a socket of a terminal block and having a hollow elongate body formed of resilient sheet material and having a forward end and a rear end, said forward end being adapted for telescopic connection with another terminal and said rear end having means thereon for connection.
  • said body having a longitudinal seam along one side thereof defined by opposed edge portions of the sheet material from which the terminal is formed, one of said edge portions having a tab struck inwardly therefrom, said tab extending lengthwise of the terminal and having its forward end portion connected to the body and its rear end portion free, said tab being bent radially outwardly of the body at said rear end portion so that the free end of the tab projects radially outwardly beyond the outer surface of the body adjacent said seam, the opposite edge portion of the body having a lug thereon which extends circumferentially over the inwardly struck portion of the tab, said lug having a rear edge which is disposed forwardly of and closely adjacent the radially projecting free end portion of the tab.

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
US654504A 1967-07-19 1967-07-19 One-piece connector including release means Expired - Lifetime US3617991A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US65450467A 1967-07-19 1967-07-19

Publications (1)

Publication Number Publication Date
US3617991A true US3617991A (en) 1971-11-02

Family

ID=24625148

Family Applications (1)

Application Number Title Priority Date Filing Date
US654504A Expired - Lifetime US3617991A (en) 1967-07-19 1967-07-19 One-piece connector including release means

Country Status (7)

Country Link
US (1) US3617991A (de)
BE (1) BE717612A (de)
DE (1) DE1765767A1 (de)
ES (1) ES152381Y (de)
FR (1) FR1571895A (de)
GB (1) GB1176767A (de)
NL (1) NL6810197A (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4422711A (en) * 1981-12-21 1983-12-27 Amp Incorporated Active pin contact
US4557543A (en) * 1980-06-27 1985-12-10 Amp Incorporated Key hole retention
US4585294A (en) * 1981-12-21 1986-04-29 Amp Incorporated Active pin contact
US20050118884A1 (en) * 2003-10-22 2005-06-02 Yazaki Europe Ltd. Electrical contact element
DE10006920B4 (de) * 1999-02-17 2009-05-07 The Whitaker Corp., Wilmington Einteiliger elektrischer Stift- oder Messerkontakt
US20150340792A1 (en) * 2012-06-04 2015-11-26 Robert Bosch Gmbh Contact having a resistant primary lance for locking in a contact chamber of a plug-in connector
US20210310506A1 (en) * 2020-04-02 2021-10-07 Fastener Technology Corporporation Captive fastener with push out pin and hold out clip

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US832352A (en) * 1905-09-07 1906-10-02 J M Fisher & Company Catch for bracelets.
US1563270A (en) * 1924-01-18 1925-11-24 Ikley C Fife Fastener
US2156319A (en) * 1937-06-26 1939-05-02 Walter R Steele Electrical testing instrument
US2516883A (en) * 1947-09-05 1950-08-01 Douglas Mfg Co Vacuum cleaner coupling
US2748367A (en) * 1952-02-28 1956-05-29 Belden Mfg Co Electrical connector
US3275973A (en) * 1963-11-04 1966-09-27 Amp Inc One piece plugboard plug connector
US3333235A (en) * 1964-09-16 1967-07-25 Virginia Panel Corp Plug contactor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US832352A (en) * 1905-09-07 1906-10-02 J M Fisher & Company Catch for bracelets.
US1563270A (en) * 1924-01-18 1925-11-24 Ikley C Fife Fastener
US2156319A (en) * 1937-06-26 1939-05-02 Walter R Steele Electrical testing instrument
US2516883A (en) * 1947-09-05 1950-08-01 Douglas Mfg Co Vacuum cleaner coupling
US2748367A (en) * 1952-02-28 1956-05-29 Belden Mfg Co Electrical connector
US3275973A (en) * 1963-11-04 1966-09-27 Amp Inc One piece plugboard plug connector
US3333235A (en) * 1964-09-16 1967-07-25 Virginia Panel Corp Plug contactor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4557543A (en) * 1980-06-27 1985-12-10 Amp Incorporated Key hole retention
US4422711A (en) * 1981-12-21 1983-12-27 Amp Incorporated Active pin contact
US4585294A (en) * 1981-12-21 1986-04-29 Amp Incorporated Active pin contact
DE10006920B4 (de) * 1999-02-17 2009-05-07 The Whitaker Corp., Wilmington Einteiliger elektrischer Stift- oder Messerkontakt
US20050118884A1 (en) * 2003-10-22 2005-06-02 Yazaki Europe Ltd. Electrical contact element
US20150340792A1 (en) * 2012-06-04 2015-11-26 Robert Bosch Gmbh Contact having a resistant primary lance for locking in a contact chamber of a plug-in connector
US20210310506A1 (en) * 2020-04-02 2021-10-07 Fastener Technology Corporporation Captive fastener with push out pin and hold out clip

Also Published As

Publication number Publication date
ES152381Y (es) 1970-10-01
NL6810197A (de) 1969-01-21
DE1765767A1 (de) 1971-09-02
BE717612A (de) 1968-12-16
FR1571895A (de) 1969-06-20
GB1176767A (en) 1970-01-07
ES152381U (es) 1970-01-16

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