US2975395A - Wiping contact assembly for plugboard - Google Patents

Wiping contact assembly for plugboard Download PDF

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Publication number
US2975395A
US2975395A US487323A US48732355A US2975395A US 2975395 A US2975395 A US 2975395A US 487323 A US487323 A US 487323A US 48732355 A US48732355 A US 48732355A US 2975395 A US2975395 A US 2975395A
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United States
Prior art keywords
contact
pin
rib
spring
plugboard
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
US487323A
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English (en)
Inventor
Gilbert C Sitz
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
Priority to BE545130D priority Critical patent/BE545130A/xx
Priority to NL109274D priority patent/NL109274C/xx
Priority to NL204414D priority patent/NL204414A/xx
Priority to US487323A priority patent/US2975395A/en
Application filed by AMP Inc filed Critical AMP Inc
Priority to FR1146766D priority patent/FR1146766A/fr
Priority to CH347238D priority patent/CH347238A/de
Priority to GB4266/56A priority patent/GB832618A/en
Priority to DEB50016A priority patent/DE1094037B/de
Application granted granted Critical
Publication of US2975395A publication Critical patent/US2975395A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • H01R13/02—Contact members
    • H01R13/26—Pin or blade contacts for sliding co-operation on one side only
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/22—Organic compounds containing nitrogen
    • C10L1/232—Organic compounds containing nitrogen containing nitrogen in a heterocyclic ring
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/26—Organic compounds containing phosphorus
    • C10L1/2633—Organic compounds containing phosphorus phosphorus bond to oxygen (no P. C. bond)

Definitions

  • This invention in general relates to plugboard assemblies for electrical accounting machines, computers, and the like and more particularly to an electrical contact assembly which provides circuit connections between fixed and movable plugboards of a plugboard assembly.
  • the invention will be set forth in the present specification in association with plugboards and related parts such as are found in electrical accounting machines.
  • a control panel cooperates with the fixed panel to provide through the electrical contacts the desired circuit connection pattern between the sensing elements and the instrumentalities to be operated in accordance with the predetermined pattern.
  • the control panel is provided with removable plugs or pin contacts which are adapted to engage and couple the corresponding contacts on the fixed panel.
  • the control panel and its contacts are removable as a unit from the plugboard assembly, where by a separate control panel may be furnished for each arrangement desired.
  • control panel is carried by a frame which may be pivotably connected to the fixed panel, pivotal movement of the frame bringing the panels into operative relationship.
  • the panels, or plugboards first be brought to a parallel position with the two sets of contacts being in an overlapping equally spaced relationship. Subsequent movement of the movable or control panel along the fixed panel causes the contacts to engage simultaneously and effects even distribution of contact pressure.
  • a mechanism for producing the movement of the panels, as described, is disclosed in my copending application, Serial No. 411,969, filed February 23, 1954, now Patent No. 2,927,295, dated March 1, 1960.
  • the present invention is here described in a form suitable for incorporation in the structure disclosed in my copending application but other forms will readily occur to others skilled in this and related arts.
  • Another object is to provide in a contact assembly for plugboards a contact member which eiTects an ultimate engagement with a mating contact plug at a freshly wiped point on the plug.
  • a further object is to provide a contact assembly for plugboards wherein the relative movement of the contact carriers is amplified as translated into wiping action between the contacts.
  • Still another object is to provide in a plugboard assembly a self-locking contact assembly tending to maintain the plugboards in interconnected relationship.
  • a still further object of the present invention is to provide in a plugboard assembly a spring contact which is simple to insert and to lock in position in the associated contact carrier.
  • Still another object of the present invention is to provide in a plugboard assembly a spring contact of a durable single-piece construction.
  • Figure l is a side view of a plugboard assembly partly broken away to illustrate the mounting of the contact assembly of the present invention
  • Figure 2 is a partial front view in elevation of the plugboard assembly with certain parts being broken away as indicated in Figure 3 from A to E to illustrate the details of mounting the contact assembly;
  • Figure 3 is a detailed fragmentary view of the plugboard assembly illustrating the contact assembly in contacting relationship
  • Figure 4 is a plan view of a spring contact for the fixed plugboard of the assembly
  • Figure 5 is a side view of the spring contact shown in Figure 4.
  • Figure 6 is a plan view of the contact portion of the spring contact member of Figures 4 and 5;
  • Figure 7 is an end view of the spring contact member of Figures 4 and 5 illustrating the relationship of the contact portion to the spring portion thereof;
  • Figure 8 is a diagrammatic view of the contact assembly illustrating the movement of the contact elements during operation of the plugboard assembly
  • Figure 9 is a perspective view of another embodiment of the contact portion of the spring contact member.
  • Figure 10 is a diagrammatic view illustrating the movement of. the cooperating plug contact and the contact portion illustrated in Figure 9;
  • Figure 11 is a side view of a spring contact member including the contact portion shown in Figure 9;
  • Figures 12 and 13 are perspective views of other embodiments of the contact portion of the spring contact member
  • Figure 14 is a diagrammatic view illustrating the movement of the cooperating plug contact with the contact portions shown in Figures 12 and 13;
  • Figure 15 is a perspective view of another embodiment of the contact portion of the spring contact member
  • Figure 16 is a diagrammatic view illustrating the relationship of the cooperating contact pin and the contact portion of Figure 15 during the connective movement of the plugboard assembly.
  • Figures 17 and 18 are perspective views of other embodiments of the contact portion of the spring contact member.
  • the plugboard assembly which includes a movable plugboard 1 shown loosely pivoted at 2 to a fixed plugboard 3 adapted to be rigidly aflixed by bolts 4 to the frame of an elec-- ttical accounting machine or the like.
  • a mechanism (not shown) of a type known in the art is provided to swing movable plugboard 1 about pivot 2 from the open position as shown to a position parallel fixed plugboard 3 and then to lift or move plugboard 1 upwardly along the fixed plugboard by a pre-determined amount.
  • Such means form no part of the present invention and hence are omitted for purposes of clarity, an example of a suitable mechanism being shown and described in my aforesaid patent.
  • Fixed plugboard 3 is provided, as shown in Figure 2, with a base panel 6 having a plurality of apertures arranged in rows and columns which are adapted to receive and support in position a like number of contact elements 7, some of which are coupled to the sensing elements of the machine while others are coupled to the various instrumentalities that perform the operative functions.
  • movable plugboard 1 is provided with a removable panel 9 having a plurality of apertures 11, corresponding to apertures 5, in which contact plugs or pins 13 are adapted to be mounted, pins 13 being arranged to engage corresponding contact elements 7, as shown in Figure 3, when the plugboard assembly is moved to its closed or interconnected position.
  • Apertures 5 on panel 6 of the fixed plugboard arc intercepted by longitudinal grooves 15 for a purpose to be explained hereinafter.
  • Pin 13 is preferably in the form of a plug or jack and includes a barrel 14 which is detachably secured to plugboard 1 within apertures 11 by any suitable means known in the art.
  • a friction fit of barrel 14 within apertures 11 will suflice, however, it is preferred that the plug be of the form shown and described in my copen-ding application, Serial No. 418,413, filed March 24, 1954, now Patent No. 2,903,670, dated September 8, 1959.
  • a ferrule 16 integral with barrel 14 provides a means for electrically and mechanically connecting lead 17 to the pin of plug 13.
  • the contact portion of pin 13 cooperates, in a manner hereinafter described, with a corresponding contact member 7 to effect electrical continuity between lead 17 and the lead 18 which is terminated in contact member 7, as in Figure 3.
  • each pin 13 engages the corresponding contact member 7 to accomplish the desired electrical connections.
  • members 7 are contemplated to include spring means which, upon deflection by the moving contact pin 13, eventually produces a predetermined contact pressure between the elements.
  • each contact member 7 includes, as shown in Figures 4 through 7, a spring portion 19 which characteristically is constrained to deflect in a plane perpendicular to the movement of the pin about a bending axis parallel to the movement of the pin.
  • a leaf spring will afford the characteristics desired in spring portion 19.
  • a wiping action, to be described in detail, of the pin and of the contact surface of member 7 may be had that enhances the electrical quality of the contact between the elements by removing or scraping away any accumulation of foreign matter which might interfere with the making of a clean contact.
  • Generally designated at 20 in Figure 4 is the means by which contact member 7 is mounted and retained within the apertures of the fixed board in a manner such that the plane of spring portion 19 is maintained substantially in the desired position parallel to the path of pin movement.
  • An indentation 21, struck up from a central portion at the base of spring 19 leaving shoulders 25, provides the link integrally connecting mounting 20 with the remainder of the contact member.
  • Shoulders are Contact adapted to fit within grooves 15 in abutting relationship with the face of the plugboard in order to maintain spring 19 in a fixed plane on a face of the plugboard 3.
  • Stabilizing the forward end of mounting means 20 within an aperture 11 is a generally cylindrical barrel portion 23 having a diameter closely approximating the aperture diameter.
  • a semi-cylindrical portion 27 extending from the side edges of which are wings 29.
  • the forward edges of wings 29 facing the plugboard are curved so that upon spreading wings 29 outwardly, such edges will engage the plugboard in a camming action to draw shoulders 25 into tight engagement with the forward face of the plugboard, thus securely anchoring contact member 7.
  • Intermediate cylindrical portion 23 and extension 27 there is provided a tapering socket or receptacle 31 adapted to receive a mating taper pin 33 which is affixed to the electrical conductor or lead 18.
  • tab 35 At the free end of spring 19 there is provided a contact portion or tab 35 through which electrical contact is had with pin 13.
  • tab 35 is a substantially fiat extension of spring 19 but with the plane thereof set at an angle with respect to the plane of spring 19 as best shown in Figure 7.
  • the relationship of corresponding apertures 5 and 11 is such that, upon mounting contact member 7 on the fixed board, the leading side of tab 35 adjacent the edge will be disposed in the path of movement of pin 13.
  • a relatively narrow contact surface 37 is provided on tab 35 in the form of a head or rib facing the path of movement of pin 13 as best shown in Figure 8, the specific form and character of the contact surface to be described in detail hereinafter.
  • pin 13 will initially engage contact rib 37 near the leading side of tab 35, the relationship of the elements being diagrammatically illustrated by the dotted lines in Figure 8. As pin 13 continues to move upwardly, it will ride along contact surface 37 causing tab 35, under constraint of spring 19, to move perpendicularly to the line of pin movement, as indicated by the arrow, ultimately to reach the final point of contact indicated by full lines in Figure 8.
  • the upward movement of the pin as translated into wiping action along the contact rib 37 is amplified since the pin wipes along a contact path greater in length than the distance it has traveled.
  • This amplification augments the tendency of the wiping action to free rib 37 of any accumulated foreign matter.
  • the tab 35 being set at an angle of to the plane of spring portion 19 the greatest amplification is attained and presents a large target area for the pin while not unduly increasing the force required to deflect the spring.
  • contact rib 37 is arranged so that during the upward motion of the pin, a predetermined length of the pin is first wiped and then rewiped or recontacted with n the wiped length to result in a final contact on the pm at a freshly wiped point.
  • a first portion 37a of rib 37 is inclined downwardly toward the base of the contact member 7 and away from the direction of movement of the pin and a second portion 37b is inclined substantially opposite to the inclination of portion 37o, a rib 37 thus having a generally V-shaped configuration with the apex of the V pointing in a direction along the length and toward the base of the contact member 7'.
  • rib 37 is susceptible of taking a variety of forms to effect recontacting the pin within the prewiped length.
  • the final point of contact on pin 13 may be approximately midway of the prewiped path, in which case, the V-shape of rib 37 is formed by rib 37b having an inclination the same as portion 37a but of a length half as long, or alternatively, the legs of the V may be substantially of the same length but with portion 37b being inclined at an angle half as great as portion 37a.
  • contact portion 39 is substantially a flat coplanar extension of spring portion 41 with contact rib 43 progressively increasing in elevation above the plane of spring portion 41 from its forward point 43a to its terminal point 43b.
  • contact rib 43 having a generally V-shaped configuration, the operation, as indicated in the action diagram, Figure 10, will be substantially the same as has been described in connection with the embodiment of my invention shown in Figures 4 through 8. Accordingly, spring portion 41 will be deflected increasingly to the left in the direction of the arrow in Figure as pin 13 rides upwardly along the contact rib 43.
  • the cleansing power of the prewiping action is enhanced by ramping only the initial portion 45a of contact rib 45 whereby once the pin has traversed ramp 45a, as may be seen in the action diagram, Figure 14, full contact pressure will be had and applied to the greater part of the prewiped length of the pin.
  • the contact rib may be formed merely by turning down the end 49 of contact portion 51 as in Figure 13.
  • the end surface of portion 49 is utilized as the contact rib so as to provide a contact path of a width at least equal to the stock thickness.
  • end 49 is substantially at an angle of 90 with respect to the plane of contact portion 51 and spring portion 53.
  • a more positive self-locking action may be obtained by progressively decreasing the height of the rewiping portion of the contact rib of the form generally shown in Figure 9.
  • prewiping portion 55a of rib 55 progressively increases in height above the plane of contact portion 57 until the apex of the V is reached, whereafter a progressive but attenuated decrease in height is imparted to rewiping portion 55b.
  • the force necessary to move pin 13 along rib portion 55a gradually increases until the apex is reached, whereupon continued movement of the pin results in a slight relaxation of spring tension clue to both the increase in distance from the anchoring point of the spring to rib portion 55b and the decrease in height of the rib.
  • an increase in deflection of the spring to the left in the action diagram, Figure 16 against an increasing resistance of the spring to deflect as the contact point once again approaches the anchoring point.
  • FIG 17 a simplified version of the contact rib is shown.
  • a ramped contact rib 59 extends diagonally across the breadth of contact portion 61 and is effective to wipe clean a path along the contact pin 13, the wiping action being amplified both by the real and the apparent increase in length of the contact rib.
  • the contact member may be formed from sheet metal stock by blanking and forming techniques Well-known in the art, thus lending ease and simplicity of fabrication of the part and by low cost production methods.
  • Figure 18 illustrates a more simplified form wherein contact member 7 is fabricated from wire.
  • two wire legs 63 which may be staked to the plugboard in any suitable manner, comprise the spring portion, the wire ends being joined by a bight portion turned back at an angle of approximately with one leg 65 of the turned back portion being longer than the other leg 66 so as to impart the desired ramp to rib 67 and to incline the rib with respect to the direction of movement of the contact pin.
  • Sufficient contact pressure is, of course, essential to provide a good eiectrical contact.
  • a contact pressure in the range of 6 to 8 ounces is eiiective for most applications.
  • the degree of contact pressure may be controlled by varying such factors as stock thickness, the type of metal employed and the degree to which the rib is ramped.
  • relatively thin stock be utilized so as to require a high deflection to produce the 6 to 8 ounces of pressure.
  • An electrical contact member comprising an elon gated leaf spring portion, means at one end of said spring portion for mounting said member of a supporting base, and a contact portion at the other end of said spring portion engageable by a mating contact pin adapted to be disposed substantially parallel.
  • rib means on said contact portion providing a narrow contact surface adapted for sliding engagement with the pin, at least the initial portion of said rib means being inclined to the plane of pin movement to provide a ramp for guiding the pin onto said contact surface and deflecting said spring portion, said rib means including a first wiping portion inclined along the length of said member for wiping along a predetermined length of the pin and a second terminal portion having an inclination in the opposite direction from that of said first portion for recontacting the pin within the wiped predetermined length.
  • An electrical contact member comprising an elongated leaf spring portion, means at one end of said spring portion for mounting said member on a supporting base, the other end of said spring portion having an extension to form a contact portion engageable by a melting contact pin adapted to be disposed substantially parallel to said member and moved in a plane parallel to the plane of said spring portion, rib-like means forming a V on one side and extending substantially the width of said contact portion with the apex of the V approximately at the longitudinal center of said member, said rib means providing a narrow contact surface adapted for sliding engagement with the pin, at least the initial portion of said rib means being inclined to the plane of pin movement to provide a ramp for guiding the pin onto said contact surface and deflecting said spring portion, at least a portion of said rib means being inclined along the length of said member to effect a wiping along the pin upon movement in sliding contact with said surface.
  • An electrical contact member substantially as set forth in claim 2, wherein said contact portion is substantially planar and the legs of the V progressively decrease in height above the plane of said contact portion from the apex of the V.
  • An electrical contact member comprising an elongated leaf spring portion, means at one end of said spring portion for mounting said member on a supporting base, and a substantially fiat contact portion integrally extending from the other end of said spring portion engageable by a mating contact pin adapted to be disposed substantially parallel to said member and moved in a plane parallel to the plane of said spring portion, the plane of said contact portion being set at an acute angle relative to the plane and about the length of said spring portion, rib means on said contact portion providing a narrow contact surface adapted for sliding engagement with the pin, at least a portion of said rib means being inclined along the length of said member to effect a wiping along the pin upon movement in sliding contact with said surface.
  • An electrical contact member comprising an elongated leaf spring portion, means at one end of said 8 spring portion for mounting said member on a supporting base, and a substantially flat contact portion in tegrally extending from the other end of said spring portion engageable by a mating contact pin adapted to be disposed substantially parallel to said member and moved in a plane parallel to the plane of said spring portion, the plane of said contact portion being set at an acute angle relative to the plane and about the length of said spring portion.
  • rib moans providing a narrow contact surface substantially to a uniform elevation above the plane of and extending substantially across said contact portion and adapted for sliding engagement with the pin, at least a portion of said rib means being inclined along the length of said member to effect a wiping along the pin upon movement in sliding contact with said surface.
  • An electrical contact member comprising an elongated leaf spring portion, means at one end of said spring portion for mounting said member on a supporting base, and a substantially flat contact portion integrally extending from the other end of said spring portion engageable by a mating contact pin adapted to be disposed substantially parallel to said member and moved in a plane parallel to the plane of said spring portion, the plane of said contact portion being set at an acute angle relative to the plane and about the length of said spring portion, rib means on said contact portion providing a narrow contact surface adapted for sliding engagement with the pin, said rib means including a first wiping portion inclined along the length of said member for wiping along a predetermined length of the pin and a second terminal portion for recontacting the pin within the wiped predetermined length.
  • An electrical contact member comprising a spring portion operatively deflectable about a bending axis per pendicular to the length thereof, means at one end of said spring portion for mounting said member on a sup porting base, and a contact portion at the other end of said spring portion having rib-like means defining a relatively narrow raised contact path on said member, at least a substantial part of said path being inclined to ward said bending axis and at least the initial part of said path being inclined with respect to both said bending axis and the direction of deflection of said spring portion, said contact path being substantially V-shaped.
  • a contact system comprising first and second rel atively movable contact members arranged for sliding engagement under spring pressure, said first member having a cylindrical engaging surface, means for moving said first and second members relatively toward each other along a line perpendicular to the longitudinal axis of said cylindrical surface to engage said members, said second member having a generally fiat face, rib-like means on said face providing a narrow raised contact surface slidably engageable with said cylindrical surface, said rib-like means including a first portion inclined to said axis and said line for wiping said cylindrical surface along its length during initial contact engaging movement of said members, and a second portion angularly disposed relative to said first portion for engaging said cylindrical surface at an intermediate point within the wiped length thereof during final contact engaging movement of said members.
  • a contact assembly comprising first and second contact members, said first contact member having a generally cylindrical engaging surface and constrained for relative movement perpendicular to the longitudinal axis of said cylindrical surface and generally parallel to and across the face of a second contact member under spring pressure, rib-like means on the face of said' second member providing a narrow raised contact surface slidably engageable with said cylindrical surface.
  • said rib-like means including a first portion inclined to said axis and direction of movement of said first contact means for wiping said cylindrical surface along its length during contact engaging movement, and a second terminal portion angularly disposed relative to said first portion for recontacting said cylindrical surface at an intermediate point within the wiped portion thereof.
  • An electrical contact member comprising an elongated leaf spring portion, means at one end of said spring portion for mounting said member on a supporting base, the other end of said spring portion having an extension to form a contact portion engageable by a mating contact pin disposed substantially parallel to said member and moved in a plane parallel to the plane of said spring portion, rib-like means projecting from a face and extending the width of said contact portion to provide a narrow contact surface which is smoothly rounded for sliding and wiping engagement across a length of the pin, said rib-like means having an initial portion and an intermediate portion and a terminal portion, at least said initial. portion being inclined to the plane of pin movement to provide a ramp for guiding the pin onto said contact surface and deflecting said spring portion, at least said intermediate portion being inclined along the length of said member to effect a wiping along the pin upon movement in sliding contact with said surface,
  • said contact portion being substantially planar with said rib-like means progressively increasing in height above the plane of said contact portion all along its entire length across the width of said contact portion.

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Liquid Carbonaceous Fuels (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
US487323A 1955-02-10 1955-02-10 Wiping contact assembly for plugboard Expired - Lifetime US2975395A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
BE545130D BE545130A (xx) 1955-02-10
NL109274D NL109274C (xx) 1955-02-10
NL204414D NL204414A (xx) 1955-02-10
US487323A US2975395A (en) 1955-02-10 1955-02-10 Wiping contact assembly for plugboard
FR1146766D FR1146766A (fr) 1955-02-10 1956-02-07 Assemblage de contacts pour tableaux à fiches
CH347238D CH347238A (de) 1955-02-10 1956-02-10 Elektrisches Kontaktglied und seine Verwendung
GB4266/56A GB832618A (en) 1955-02-10 1956-02-10 Contact assembly for electric plugboards
DEB50016A DE1094037B (de) 1955-02-10 1958-08-19 Treibstoffe fuer Ottomotore

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US487323A US2975395A (en) 1955-02-10 1955-02-10 Wiping contact assembly for plugboard
DEB50016A DE1094037B (de) 1955-02-10 1958-08-19 Treibstoffe fuer Ottomotore

Publications (1)

Publication Number Publication Date
US2975395A true US2975395A (en) 1961-03-14

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ID=25965296

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Application Number Title Priority Date Filing Date
US487323A Expired - Lifetime US2975395A (en) 1955-02-10 1955-02-10 Wiping contact assembly for plugboard

Country Status (7)

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US (1) US2975395A (xx)
BE (1) BE545130A (xx)
CH (1) CH347238A (xx)
DE (1) DE1094037B (xx)
FR (1) FR1146766A (xx)
GB (1) GB832618A (xx)
NL (2) NL109274C (xx)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3171704A (en) * 1960-12-30 1965-03-02 Int Harvester Co Electrical connector
US3172719A (en) * 1964-08-05 1965-03-09 paholek etal
US3189868A (en) * 1962-10-23 1965-06-15 Amp Inc Plug and socket contactor
US3217284A (en) * 1963-08-12 1965-11-09 Amp Inc Miniature contact assembly for plugboards
US3418621A (en) * 1966-04-20 1968-12-24 Cam Corp Plugboard assembly
US3419842A (en) * 1966-01-12 1968-12-31 John E. Taylor Jr. Multiple contact assembly
US3450849A (en) * 1967-12-05 1969-06-17 Electronic Associates Contact assembly
US3534320A (en) * 1966-08-10 1970-10-13 Westinghouse Electric Corp Electrical connector

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19600189A1 (de) * 1996-01-04 1997-07-10 Grote & Hartmann Kontaktelement

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1213632A (en) * 1916-03-03 1917-01-23 William P Hammond Electrical connector.
US1359585A (en) * 1919-11-24 1920-11-23 F B Electric & Mfg Company Coupling-plate for storage batteries
US1808555A (en) * 1926-10-26 1931-06-02 Gen Electric Electric switch
US2120396A (en) * 1936-06-04 1938-06-14 Bell Telephone Labor Inc Electrical contact member
US2401430A (en) * 1944-12-15 1946-06-04 Ibm Plugboard contactors
US2594748A (en) * 1949-10-29 1952-04-29 Ibm Control panel for accounting machines
US2738486A (en) * 1953-12-28 1956-03-13 Howard M Wadsworth Universal mounting clip
US2816275A (en) * 1953-12-29 1957-12-10 Amp Inc Electrical connector

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE559671A (xx) * 1956-07-31

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1213632A (en) * 1916-03-03 1917-01-23 William P Hammond Electrical connector.
US1359585A (en) * 1919-11-24 1920-11-23 F B Electric & Mfg Company Coupling-plate for storage batteries
US1808555A (en) * 1926-10-26 1931-06-02 Gen Electric Electric switch
US2120396A (en) * 1936-06-04 1938-06-14 Bell Telephone Labor Inc Electrical contact member
US2401430A (en) * 1944-12-15 1946-06-04 Ibm Plugboard contactors
US2594748A (en) * 1949-10-29 1952-04-29 Ibm Control panel for accounting machines
US2738486A (en) * 1953-12-28 1956-03-13 Howard M Wadsworth Universal mounting clip
US2816275A (en) * 1953-12-29 1957-12-10 Amp Inc Electrical connector

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3171704A (en) * 1960-12-30 1965-03-02 Int Harvester Co Electrical connector
US3189868A (en) * 1962-10-23 1965-06-15 Amp Inc Plug and socket contactor
US3217284A (en) * 1963-08-12 1965-11-09 Amp Inc Miniature contact assembly for plugboards
US3172719A (en) * 1964-08-05 1965-03-09 paholek etal
US3234499A (en) * 1964-08-05 1966-02-08 Bell Telephone Labor Inc Printed circuit board connector
US3419842A (en) * 1966-01-12 1968-12-31 John E. Taylor Jr. Multiple contact assembly
US3418621A (en) * 1966-04-20 1968-12-24 Cam Corp Plugboard assembly
US3534320A (en) * 1966-08-10 1970-10-13 Westinghouse Electric Corp Electrical connector
US3450849A (en) * 1967-12-05 1969-06-17 Electronic Associates Contact assembly

Also Published As

Publication number Publication date
FR1146766A (fr) 1957-11-14
CH347238A (de) 1960-06-30
BE545130A (xx)
NL204414A (xx)
DE1094037B (de) 1960-12-01
NL109274C (xx)
GB832618A (en) 1960-04-13

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