US3882296A - Leaf spring switching means - Google Patents

Leaf spring switching means Download PDF

Info

Publication number
US3882296A
US3882296A US413078A US41307873A US3882296A US 3882296 A US3882296 A US 3882296A US 413078 A US413078 A US 413078A US 41307873 A US41307873 A US 41307873A US 3882296 A US3882296 A US 3882296A
Authority
US
United States
Prior art keywords
leaf spring
lead
slot
slots
base
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
US413078A
Other languages
English (en)
Inventor
Peter Keith Townsend
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
Priority to US413078A priority Critical patent/US3882296A/en
Priority to NL7413595A priority patent/NL7413595A/xx
Priority to CA211,492A priority patent/CA1017779A/en
Priority to GB44997/74A priority patent/GB1480262A/en
Priority to AU74427/74A priority patent/AU492970B2/en
Priority to DE19742449950 priority patent/DE2449950A1/de
Priority to IT28619/74A priority patent/IT1030721B/it
Priority to CH1423574A priority patent/CH576698A5/xx
Priority to AT861374A priority patent/AT336692B/de
Priority to BE149959A priority patent/BE821570A/xx
Priority to FR7436199A priority patent/FR2250191A1/fr
Priority to BR9027/74A priority patent/BR7409027A/pt
Priority to ES431543A priority patent/ES431543A1/es
Priority to AR256385A priority patent/AR200979A1/es
Priority to SE7413881A priority patent/SE395074B/xx
Priority to JP49127438A priority patent/JPS5074781A/ja
Application granted granted Critical
Publication of US3882296A publication Critical patent/US3882296A/en
Priority to HK185/79A priority patent/HK18579A/xx
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
    • H01R4/242—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members being plates having a single slot
    • H01R4/2425—Flat plates, e.g. multi-layered flat plates
    • H01R4/2429—Flat plates, e.g. multi-layered flat plates mounted in an insulating base
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/24—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting
    • H01H1/26—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting with spring blade support
    • H01H1/28—Assembly of three or more contact-supporting spring blades
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5844—Electric connections to or between contacts; Terminals making use of wire-gripping clips or springs
    • H01H1/585—Electric connections to or between contacts; Terminals making use of wire-gripping clips or springs and piercing the wire insulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/56—Contact spring sets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/04—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
    • H01H11/06—Fixing of contacts to carrier ; Fixing of contacts to insulating carrier
    • H01H2011/062—Fixing of contacts to carrier ; Fixing of contacts to insulating carrier by inserting only

Definitions

  • ABSTRACT A switch having a plurality of leaf spring type contacts held in a stacked, but spaced-apart manner, with each spring having one end thereof secured in a common plastic base.
  • the base has slots formed therein to receive the leaf springs and also has holes therein, at right angles to the plane of the slots, to receive lead-in wires.
  • the lead-in wires are simply cut off at their ends and inserted into their respective holes.
  • the leaf springs are then inserted in their respective slots.
  • Each leaf spring has a slotted appendage thereon which slips over a particular and unique lead-in wire within the housing, cuts away the insulation thereon, and makes contact with the metal conductor therein.
  • the assembled switch requires no discrete terminals secured to the ends of the lead-in wires nor any screws, bolts or other fastening means to hold the leaf springs in the common base.
  • the plastic housing holds the leaf springs therein by force-fit means.
  • Th Z5 [5 71.7 15 71-, .15; E, 12 T5125 LEAF SPRING SWITCHING MEANS BACKGROUND OF THE INVENTION
  • This invention relates generally to switches, and more particularly to switches of the type known as line switches which are employed extensively in the telephone industry, but which have many other applications, as well.
  • a line link switch is a series of leaf spring type contacts which are stacked, one over the other, and secured in such stacked position by a plurality of insulated spacers positioned at one end of the leaf springs and in-between adjacent leaf springs. A pair of screws extend through the stack of spacers and leaf springs to hold them in position.
  • the free end of each of the leaf springs has at least one contact formed thereon and in bifurcated in nature so that what is known as a card can be inserted into the slots formed by such bifurcations. As the card is moved to and fro, in a line perpendicular to the plane of the leaf springs, electrical contacts between various adjacent ones of the spring leaf are made or broken to perform desired electrical switching functions.
  • At least one of these leaf springs is employed in each telephone hand set. Furthermore, large quantities of these type switches are employed in other switching equipment in the telephone industry. Also extensive use of this type switch is made in many other kinds of electrical equipment, such as for example, pin ball machines, appliances and industrial controls.
  • each of the lead-in wires has a spade-like termination thereon, as mentioned above, in order to connect with one of the spring leaf contacts.
  • a plurality of insulating spacers must be manufactured and then individually positioned in-between the various spring leaves.
  • Each of the spring leaves and insulating separators must have a pair of holes drilled therein to receive the two screws which hold the entire assembly together. It is also apparent that in the manufacturing thereof, means must be provided to stack the leaf springs and the separators together in the proper order and with the holes therein aligned so that the supporting screws can be inserted.
  • Another aim of the invention is the improvement of line link switches generally.
  • a plastic housing having a plurality of slots, usually seven, which are substantially parallel to each other and with the openings thereof all on one major, flat surface of the housing.
  • a plurality of holes, also usually seven, are formed in said housing substantially at right angles to the plane of the slots and with the holes penetrating into the housing to different depths, and more specifically with each hole extending just beyond one of the given slots so that when the leaf-spring is inserted in said one slot said leaf spring will engage only the lead-in wire inserted in said each hole.
  • the seven holes can be arranged into two rows of holes, one on either side of the stack of slots and with the holes aligned at substantially right angles to the major planes of the slots. The holes nearest the slot openings in each row penetrate past only the first slot, the next hole penetrating just past the second hole, etc.
  • the engagement between the leaf springs and the lead-in wires is effected by means of an appendage which extends out from the side of each leaf spring and which contains a slot.
  • an appendage which extends out from the side of each leaf spring and which contains a slot.
  • Spring-like finger elements and embossed areas are formed on each of the leaf springs which function to grip the walls of the slot into which the leaf spring is inserted so as to provide a rigid support in said housing for the spring leaf, and further to prevent unauthorized extraction of a spring leaf from the plastic housing.
  • Each of the seven spring leaves can be inserted separately, or simultaneously by an appropriate tool or antomated equipment.
  • To assemble the switch it is only necessary to insert the lead-in wires into their proper holes in the housing followed by insertion of the leaf springs into their proper slots.
  • a metal bracket is provided to hold the assembled switch onto a suitable chassis which is provided therefor, as for example, in telephone bases.
  • the slots formed in the appendages on the spring leaves have their edges bent at right angles to the plane of the leaf spring so that the slot formed thereby is largest near the open end thereof and decreases in width towards the top or closed end thereof.
  • the action of said slot with its bent-over edges is, in effect, to wear away the insulation on the wire as the slot is pressed down and over said wire, thereby providing a safe means of removing the insulation from the lead-in wire but yet establishing good electrical contact with the metal conductor as the slot finally seats upon said conductor.
  • FIGS. 1 through 4 show four perspective views of the switch in various stages of assembly
  • FIG. 5 shows a broken away perspective view of one leaf spring inserted into the plastic housing and the physical connection it makes with a lead-in conductor inserted in the hole therefore in said plastic housing;
  • FIG. 5a is a perspective view of one leaf spring
  • FIG. 5b is a blown-up view of a portion of the structure of FIG. 5a;
  • FIG. 6 is a top plan view of the plastic housing showing the openings of the slots provided for the spring leaves;
  • FIG. 7 is a sectioned view taken along the plane CC of FIG. 6;
  • FIG. 8 is a sectioned view taken along the plane BB of FIG. 6 and shows the intersection of three of the slots and the holes for the lead-in wires on one side of the stack of slots;
  • FIG. 9 is another sectional view of FIG. 6 taken along the plane A-A and shows the intersection of four of the slots for the spring leaves and the holes provided for the lead-in wires;
  • FIG. 10 is an end view of the structure of FIG. 6 and shows theentrances of the seven holes provided for the seven lead-in wires;
  • 16a, 17, and 17a show plan views and side views of each of the seven spring leaf elements
  • FIGS. 18 and 19 show the switch in its two operating positions
  • FIG. 20 shows a perspective view of the card element 100 employed in the switch.
  • FIGS. 1 through 4 show the line switch in various stages of assembly.
  • the invention will be described by discussing the insertion of one of the lead-in wires 34 into the housing 20 followed by the insertion of the leaf spring 21 into the housing 20, as shown in FIG. 1.
  • FIGS. 6 through 9 it will be shown how the leaf spring 21 interacts with the lead-in wire 34 within the housing to make an electrical connection with said lead-in wire 34, and also to provide a good mechanical support in the housing for leaf spring 21.
  • FIGS. 11 through 17 The different configurations employed in each of the seven leaf springs are shown in FIGS. 11 through 17 and will be discussed with respect to such Figures.
  • FIG. 1 a lead-in wire 34 is shown as being inserted in aperture 34a and the leaf spring 21 as being inserted in slot 21a. In their inserted positions the insulation on the wire 34a is worn through by a slot-containing projection on leaf spring 21. The intersection of the slot 21a with the aperture 34a can be seen in FIG. 8, which is a sectional view taken along the plane BB of FIG. 6.
  • leaf spring 21 is inserted in slot 21a and wire 34 is inserted in hole 34a is shown in the broken-away perspective view of FIG. 5.
  • the actual connection between leaf spring 21 and wire 34 occurs as a result of a tab or projection 71 which is attached to leaf spring 21.
  • tab 71 has a slot formed therein, with the opening of the slot 70 being at the bottom of tab 71.
  • the leaf spring 21 is shown in more detail in FIG. 5 and in the perspective view in FIG. 5a wherein the details of the slot 70 and the tab 71 can be seen more clearly. More specifically in FIG. 5a it can be seen that slot 70 has the sides 73 and 74 thereof bent over into triangularly shaped sections at to the plane of the tab 71.- Further, slot- 70 is wider at the bottom than it is at the top portion 75 thereof. Thus when tab 71 is moved down upon conductor 34 the inner surfaces of the triangular elements 73 and 74 will function to literally wear away the insulation on the lead wire 34 and by the time the wire 34 reaches the top of the slot 75 the insulation will have been worn away and electrical contact will be made between the sides of the slot and the wire 34.
  • the wearing away of the insulation on wire 34 rather than leaving sharp edges on the inside of slot 70 to cut through the insulation on wire 34 is desirable since the wire 78 is a fine wire of approximately wire size 27, which could be damaged by a sharp edge on the inner surfaces of slot 70.
  • the tabs 76 and 77, formed in the leaf spring 21, abut against the top surface 79 of base 20, thereby determining the depth of penetration of the leaf spring 21 into the housing 20.
  • the leaf spring element 22 is the next element to be inserted in the housing 20. Specifically, the leaf spring element 22 is inserted in slot 22a and makes connection with the wire 30, also inserted in the housing 20.
  • the connection between lead-in wire 30 and leaf spring 22 is effected by means of the slot 88 in the tab 37 of leaf spring 22, as shown in FIG. 13. It is to be noted that lead-in wire 30 is inserted in a hole in the housing 20 on the opposite side thereof from hole 34.
  • FIG. 9 shows a sectional view of the structure of FIG. 6 along the plane AA. It can be seen from FIG. 9 that four of the seven lead-in wires are inserted in the four apertures 30a, 31a, 32a and 33a, which are intersected respectively by the slots 22a, 24a, 26a and 27a respectively, as shown in FIGS. 8 and 9.
  • the particular leaf spring which fits into slot 22a is shown in detail in FIG. 12.
  • the tab 37 on leaf spring 22 of FIG. 12 has a slot 88 therein which is formed in the same manner as the slot 70 of FIG. 5b.
  • the sides of slot 88 are formed into triangular elements bent therefrom at right angles to the plane of tab 37, also in the same manner as the triangular elements 73 and 74 of slot 70 in FIG. 5b are formed.
  • the spring leaf 22 is shown as inserted in the base 20 along with leaf spring 21.
  • the leadin wires 30, 31, 34 and 35 are also shown as being inserted.
  • the leaf spring 24 is shown along side the base 20 in a non-inserted position. When inserted into base 20 the spring leaf 24 will intercept the lead-in wire 31.
  • FIG. 3 five of the seven leaf springs 21, 22, 23, 24 and 25 are shown inserted in base 20.
  • Six of the lead-in wires 30, 31, 32, 33, 34, 35 and 36 are also shown as being inserted in base 20.
  • the completed assembly, including the inserted seven leaf springs 21 through 27 and the inserted seven lead-in wires 30 through 36, is
  • FIG. 4 Also shown in FIG. 4 is a bracket.
  • leaf springs 22, 24, 26 and 27 are connected, respectively, to lead-in wires 30, 31, 32 and 33.
  • Spring leaves 21, 23 and 25 are connected, respectively, to lead-in wires 34, 35 and 36.
  • FIGS. 11 through 17 show a side view of leaf springs 21 through 27, respectively. From FIGS. 12 through 17 it can be seen that each of the leaf springs 21 through 27 has a different stamped out configuration at the bifurcated end thereof. Such differences in the stamped out portion at the bifurcated ends of the leaf springs is needed in order to accommodate a card element which fits into the slots formed by such bifurcations and moves certain of the leaf springs back and forth to make and break contacts with other leaf springs. Reference is made to FIGS.
  • card 100 slides down into the slot at the bifurcated end of the leaf springs 21 through 27 and has two positions, one as shown in FIG. 18 and the other as shown in FIG. 19, which shows card element 100 moved to the right in the direction of the arrow 108.
  • card 100 has elements 101, 102 and 103 formed thereon which are wider than the main body of card 100 and function to grip the bifurcated elements of leaf springs 26, 24 and 21, respectively.
  • the elements 101, 102 and 103 function to pull back the leaf springs 26, 24 and 21.
  • circuit connections made or disconnected by the foregoing breaking and making of the contacts of the leaf springs 21 through 27 is not important for the purposes of this invention.
  • the important consideration is that the afore-mentioned breaking and making of contacts is effected when the card 100 is moved from its leftmost position of FIG. 18 to its rightmost position as shown in FIG. 19 by virtue of theprojections 101, 102 and 103 on the card 100.
  • FIG. 20 there is shown a top view of the card 100.
  • I02 and 103 are sufficiently wide to grip the two legs formed by bifurcating the ends of the leaf springs 26, 24 and 21 of FIGS. 18 and 19.
  • leaf springs 27, 25, 23 and 22 between the bifurcated legs thereof is sufficiently wide so that the card 100 will pass therethrough from its leftmost position in FIG. 18 to its rightmost position in FIG. 19, without engaging the bifurcated legs of said leaf springs 27, 25, 23 and 22.
  • the projections 101,102 and 103 do not at any time come into contact with the leaf springs 27, 25, 23 and 22. Only the leaf springs 26, 24 and 21 are activated by the projections 101, 102 and 103. Of these three leaf springs 26, 24 and 21 only the leaf springs 26 and 24 are activated to engage adjacent leaf springs 25 and 23 respectively, as shown in FIGS. 18 and 19.
  • a leaf spring type switch comprising: a plurality of leaf spring contacts having a longitudi nal axis; a plurality of lead-in wires; a base of molded, insulative material comprising a plurality of slots formed therein and positioned in a side-by-side relationship with each other in a stacked manner, and with said slots all opening in substantially the same direction from said base; each slot lying in a separate plane with said separate planes positioned to intersect a first given plane at parallel lines of intersection; said base further comprising a plurality of apertures formed therein, each of said apertures being oriented to intersect different ones of said slots;
  • one of said lead-in wires being inserted in each of said apertures to intersect said different ones of said slots;
  • one of said leaf spring contacts being retained in each of said slots with its longitudinal axis being substantially perpendicular to said parallel lines of intersection;
  • leaf spring contacts having a 6 notch formed therein, with said notch of each leaf spring contact being positioned to engageably slide over the particular lead-in wire inserted in the aperture which intersects with the slot in which said each leaf spring contact is inserted, to thereby make electrical contact with said particular lead-in wire; and actuating means for connecting and disconnecting slective ones of said leaf spring contacts.
  • each of said leaf spring contacts comprises holding elements formed thereon which contact the sides of the slot in said base to securely hold said leaf spring contact in the slot in which it is inserted;
  • said notched appendage is constructed to mechanically grip said intersecting lead-in wire to prevent unauthorized withdrawal thereof.
  • each of said leaf spring contacts has its free end bifurcated with a cut-out portion of distinct configuration between the two legs formed by said bifurcation, and further comprising:
  • a leaf spring type switch in'accordance with claim 3 in which:
  • each of said leaf spring contacts comprises holding elements formed thereon which contact the sides of the slot in said base to securely hold said leaf spring contact in the slot in which it is inserted; and in which said notched appendage is constructed to mechanically grip said intersecting lead-in wire to prevent unauthorized withdrawal thereof.
  • a leaf spring type switch comprising: a base of molded, insulative material comprising a plurality of slots formed therein and positioned in a side-by-side relationship with each other in a stacked manner and with said slots all opening in substantially the same direction from said base;
  • said base further comprising a plurality of apertures, each of said apertures being oriented to intersect different ones of said slots;
  • actuating means for connecting and disconnecting selective ones of said leaf springs.
  • a leaf spring type switch in accordance with claim 5 in which:
  • each of said leaf springs comprises holding elements formed thereon which contact the sides of the slot in said molded base to securely hold said leaf spring in the slot in which it is inserted;
  • said element is constructed to mechanically grip said intersecting lead-in to prevent unauthorized withdrawal thereof.
  • each of said leaf springs has the free end thereof bifurcated with a cut-out portion of distinct configuration between the two legs formed by said bifurcation, and further comprising:
  • a leaf spring type switch in accordance with claim 7 in which:
  • each of said leaf springs comprises holding elements formed thereon which contact the sides of the slot in said molded base to securely hold said leaf spring in the slot in which it is inserted;
  • said element is constructed to mechanically grip said intersecting lead-in wire to prevent unauthorized withdrawal thereof.
  • a leaf spring switch comprising:
  • a base of insulative material comprising:
  • a leaf spring inserted in each of said slots, and comprising an element constructed to engage the intersecting lead-in wire to remove the insulation from said intersecting lead-in wire and to make electrical connection therewith;
  • a leaf spring type switch in accordance with claim 9 in which:
  • each of said leaf springs comprises holding elements formed thereon which contact the sides of the slot in said base to securely hold said leaf spring in the slot in which it is inserted;
  • said element is constructed to mechanically grip said intersecting lead-in wire to prevent unauthorized withdrawal thereof.
  • each of said leaf springs has the free end thereof bifurcated with a cut-out portion of distinct configuration between the two legs formed by said bifurcation, and further comprising:
  • a leaf spring type switch in accordance with claim 11 in which:
  • each of said leaf springs comprises holding elements formed thereon which contact the sides of the slot in said base to securely hold said leaf spring in the slot in which it is inserted;
  • said element is constructed to mechanically grip said intersecting lead-in wire to prevent unauthorized withdrawal thereof.
  • a switch assemblage in accordance with claim 9 in which:
  • each of said base portions comprises holding elements formed thereon with contact the sides of the slot in said base to securely hold said contact in the slot in which it is inserted;
  • said element is constructed to mechanically grip said intersecting lead-in wire to prevent unauthorized withdrawal thereof.
  • each of said contacts has its free end therof bifurcated with a cut-out portion of distinct configuration between the two legs formed by said bifurcation, and further comprising:
  • card means positioned within said cut-out portions of said contacts and constructed to move selected ones of said contacts to make and break electrical contact between predetermined ones of said contacts.
  • a leaf spring type switch assemblage in accordance with claim 14 in which:
  • each of said leaf springs comprises holding elements formed thereon which contact the sides of the slot in said base to securely hold said leaf spring in the slot in which it is inserted;
  • said element is constructed to mechanically grip said intersecting lead-in wire to prevent unauthorized withdrawal thereof.
  • a switch assemblage comprising:
  • a base of molded, insulation material having a plurality of parallel slots therein arranged in a stacked manner, and a plurality of apertures therein each oriented to intersect at least one of said slots;
  • slots and apertures being arranged and constructed to enable the base portion of each contact to intersect one lead-in wire to the exclusion of the remaining lead-in wires;
  • each base portion comprising an element constructed to engage the intersecting lead-in wire to make electrical contact therewith;

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Push-Button Switches (AREA)
US413078A 1973-11-05 1973-11-05 Leaf spring switching means Expired - Lifetime US3882296A (en)

Priority Applications (17)

Application Number Priority Date Filing Date Title
US413078A US3882296A (en) 1973-11-05 1973-11-05 Leaf spring switching means
NL7413595A NL7413595A (nl) 1973-11-05 1974-10-16 Schakelstelsel.
CA211,492A CA1017779A (en) 1973-11-05 1974-10-16 Multipole switch with cable insulation piercing contact blade terminations
GB44997/74A GB1480262A (en) 1973-11-05 1974-10-17 Electric switch
AU74427/74A AU492970B2 (en) 1973-11-05 1974-10-17 Electric switch
DE19742449950 DE2449950A1 (de) 1973-11-05 1974-10-21 Schaltereinheit
IT28619/74A IT1030721B (it) 1973-11-05 1974-10-21 Commutatore elettrico
CH1423574A CH576698A5 (es) 1973-11-05 1974-10-24
AT861374A AT336692B (de) 1973-11-05 1974-10-25 Schaltereinheit
BE149959A BE821570A (fr) 1973-11-05 1974-10-28 Element de commutation
FR7436199A FR2250191A1 (es) 1973-11-05 1974-10-29
BR9027/74A BR7409027A (pt) 1973-11-05 1974-10-29 Computador eletrico
ES431543A ES431543A1 (es) 1973-11-05 1974-10-31 Perfeccionamientos introducidos en un conjunto de conmuta- dor.
AR256385A AR200979A1 (es) 1973-11-05 1974-11-04 Conjunto de conmutador
SE7413881A SE395074B (sv) 1973-11-05 1974-11-05 Stromstellarenhet for anvendning i telefonsystem
JP49127438A JPS5074781A (es) 1973-11-05 1974-11-05
HK185/79A HK18579A (en) 1973-11-05 1979-03-29 Electric switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US413078A US3882296A (en) 1973-11-05 1973-11-05 Leaf spring switching means

Publications (1)

Publication Number Publication Date
US3882296A true US3882296A (en) 1975-05-06

Family

ID=23635727

Family Applications (1)

Application Number Title Priority Date Filing Date
US413078A Expired - Lifetime US3882296A (en) 1973-11-05 1973-11-05 Leaf spring switching means

Country Status (16)

Country Link
US (1) US3882296A (es)
JP (1) JPS5074781A (es)
AR (1) AR200979A1 (es)
AT (1) AT336692B (es)
BE (1) BE821570A (es)
BR (1) BR7409027A (es)
CA (1) CA1017779A (es)
CH (1) CH576698A5 (es)
DE (1) DE2449950A1 (es)
ES (1) ES431543A1 (es)
FR (1) FR2250191A1 (es)
GB (1) GB1480262A (es)
HK (1) HK18579A (es)
IT (1) IT1030721B (es)
NL (1) NL7413595A (es)
SE (1) SE395074B (es)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2536728A1 (de) * 1975-08-18 1977-03-03 Siemens Ag Kontaktfedersatz fuer elektromagnetische relais
DE2536706A1 (de) * 1975-08-18 1977-03-03 Siemens Ag Kontaktfedersatz fuer elektromagnetische relais
FR2423854A1 (fr) * 1978-04-19 1979-11-16 Haller & Co E Procede et dispositif pour la fixation de ressorts de contact et/ou de rappel dans les relais electriques
FR2618601A1 (fr) * 1987-07-20 1989-01-27 Schrack Elektronik Ag Relais
US5013877A (en) * 1988-02-08 1991-05-07 Raychem Corporation Devices for electrical connection
WO1998013843A1 (en) * 1996-09-27 1998-04-02 Siemens Electromechanical Components, Inc. Improved relay and relay terminal
US20060253636A1 (en) * 2000-07-06 2006-11-09 Onspec Electronic, Inc. Flash toaster for reading several types of flash memory cards with or without a PC
US8337252B2 (en) 2000-07-06 2012-12-25 Mcm Portfolio Llc Smartconnect flash card adapter

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES470309A1 (es) * 1977-06-03 1979-09-16 Amp Inc Un conectador electrico
CA1334298C (en) * 1988-02-08 1995-02-07 James Jervis Telephone junction box and switch therefor
FR2687855B1 (fr) * 1992-02-21 1996-06-28 Dav Receptacle pour faisceau de conducteurs electriques connectables a des bornes de connexion.
US5241144A (en) * 1992-06-24 1993-08-31 Emerson Electric Co. Self-adjusting multicircuit brake switch
US5541376A (en) * 1994-03-28 1996-07-30 Valleylab Inc Switch and connector

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2738400A (en) * 1952-12-31 1956-03-13 Gen Railway Signal Co Contact assembly for electromagnetic relays
US2970200A (en) * 1957-05-06 1961-01-31 Time O Matic Company Contact pileup
US3444506A (en) * 1967-06-05 1969-05-13 Minnesota Mining & Mfg Connector
US3680032A (en) * 1971-01-07 1972-07-25 Sylvania Electric Prod Printed circuit board connector assembly

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2738400A (en) * 1952-12-31 1956-03-13 Gen Railway Signal Co Contact assembly for electromagnetic relays
US2970200A (en) * 1957-05-06 1961-01-31 Time O Matic Company Contact pileup
US3444506A (en) * 1967-06-05 1969-05-13 Minnesota Mining & Mfg Connector
US3680032A (en) * 1971-01-07 1972-07-25 Sylvania Electric Prod Printed circuit board connector assembly

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2536728A1 (de) * 1975-08-18 1977-03-03 Siemens Ag Kontaktfedersatz fuer elektromagnetische relais
DE2536706A1 (de) * 1975-08-18 1977-03-03 Siemens Ag Kontaktfedersatz fuer elektromagnetische relais
FR2423854A1 (fr) * 1978-04-19 1979-11-16 Haller & Co E Procede et dispositif pour la fixation de ressorts de contact et/ou de rappel dans les relais electriques
FR2618601A1 (fr) * 1987-07-20 1989-01-27 Schrack Elektronik Ag Relais
US5013877A (en) * 1988-02-08 1991-05-07 Raychem Corporation Devices for electrical connection
WO1998013843A1 (en) * 1996-09-27 1998-04-02 Siemens Electromechanical Components, Inc. Improved relay and relay terminal
US20060253636A1 (en) * 2000-07-06 2006-11-09 Onspec Electronic, Inc. Flash toaster for reading several types of flash memory cards with or without a PC
US8337252B2 (en) 2000-07-06 2012-12-25 Mcm Portfolio Llc Smartconnect flash card adapter
US9558135B2 (en) 2000-07-06 2017-01-31 Larry Lawson Jones Flashcard reader and converter for reading serial and parallel flashcards

Also Published As

Publication number Publication date
NL7413595A (nl) 1975-05-07
HK18579A (en) 1979-04-06
SE7413881L (es) 1975-05-06
ES431543A1 (es) 1976-10-16
DE2449950A1 (de) 1975-05-07
BR7409027A (pt) 1976-05-11
CA1017779A (en) 1977-09-20
IT1030721B (it) 1979-04-10
GB1480262A (en) 1977-07-20
FR2250191A1 (es) 1975-05-30
AU7442774A (en) 1976-04-29
SE395074B (sv) 1977-07-25
AR200979A1 (es) 1974-12-27
ATA861374A (de) 1976-09-15
JPS5074781A (es) 1975-06-19
CH576698A5 (es) 1976-06-15
BE821570A (fr) 1975-04-28
AT336692B (de) 1977-05-25

Similar Documents

Publication Publication Date Title
US5641312A (en) Terminal block and function plugs
US3903385A (en) Shorting bar switch in electrical connector biasing assembly
US3882296A (en) Leaf spring switching means
US3845455A (en) Tubular conductor-in-slot connecting device
KR890000970B1 (ko) 접속요소에 납땜, 나사체결, 절연재 제거를 요하지 않고 다중접점을 형성하는 접속용구
US5564952A (en) Electrical plug connector with blade receiving slots
US4322120A (en) Plug-in connector with improved spring contact
US3555493A (en) Right angle printed circuit board connector
KR880009863A (ko) 슬랩형 잭 모듈
US4029377A (en) Push-on bus bar
US4350404A (en) Electrical connector construction
US4948376A (en) Connector
US3489986A (en) Electrical connector
US3665373A (en) Push-in connector switch
US3486154A (en) Cartridge fuse connector and connecting block
US3346834A (en) Feed-thru connector
US20080305661A1 (en) Grounding comb, in particular for a plug-type connector for printed circuit boards
US4072379A (en) Electric power distributing apparatus
JPH10247538A (ja) プリント板又は電気装置のためのソケツト端子
JP2000285989A (ja) 電気スイッチ用コネクタ組立体、電気的接触部、電気的接触部用ハウジング組立体
US4410225A (en) Universal connector kit
US3333231A (en) Receptacle assemblies
US3806859A (en) Contacts for pin terminals
US4319102A (en) Multi-pole switch
CA1075788A (en) Printed circuit board edge connector