US3134868A - Multiple contact arrangement with force transmitting mechanical connector - Google Patents

Multiple contact arrangement with force transmitting mechanical connector Download PDF

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Publication number
US3134868A
US3134868A US143652A US14365261A US3134868A US 3134868 A US3134868 A US 3134868A US 143652 A US143652 A US 143652A US 14365261 A US14365261 A US 14365261A US 3134868 A US3134868 A US 3134868A
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US
United States
Prior art keywords
reeds
pairs
contacts
members
contact
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
US143652A
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English (en)
Inventor
John R Shine
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.)
AT&T Corp
Original Assignee
Bell Telephone Laboratories 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 BE623335D priority Critical patent/BE623335A/xx
Application filed by Bell Telephone Laboratories Inc filed Critical Bell Telephone Laboratories Inc
Priority to US143652A priority patent/US3134868A/en
Priority to DE19621439934 priority patent/DE1439934A1/de
Priority to GB37497/62A priority patent/GB1021233A/en
Priority to NL284082D priority patent/NL284082A/xx
Priority to ES281607A priority patent/ES281607A1/es
Priority to JP4364562A priority patent/JPS401772B1/ja
Priority to FR911744A priority patent/FR1337584A/fr
Application granted granted Critical
Publication of US3134868A publication Critical patent/US3134868A/en
Priority to CA706995A priority patent/CA706995A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/28—Relays having both armature and contacts within a sealed casing outside which the operating coil is located, e.g. contact carried by a magnetic leaf spring or reed
    • H01H51/287—Details of the shape of the contact springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/28—Relays having both armature and contacts within a sealed casing outside which the operating coil is located, e.g. contact carried by a magnetic leaf spring or reed
    • H01H51/281—Mounting of the relay; Encapsulating; Details of connections
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49105—Switch making

Definitions

  • Still other objects of my invention when embodied in an electrically controlled magnetic multiple contact arrangement, are to reduce electrical power requirements, to decrease magnetic material requirements and to simplify operating characteristics and requirements.
  • the reeds are held substantially parallel in a coplanar attitude by the casing, which provides a continuous mechanical interconnection among the reeds and which encases successively greater lengths thereof.
  • the casing comprises a base portion from which extend successively greater lengths of reed encasing portions to successively decrease the free( liexing reed length.
  • This stepwisely varying rigidity of the casing results in a stepwisely varying rigidity or stiffness of the reeds. Accordingly, a force selectively applied to a first reed will be transmitted in part to the next adjacent second and remaining reeds.
  • the casing being of a magnetic material also enables a substantial magnetic coupling of the reeds to a source of magnetic iux. l l Y
  • I provide two such pluraiities of reeds and magnetic plastic casings andv I arrange them in an overlapping manner such as to form a plurality of contact pairs each of which pairs has a gap width greater than the preceding pair.
  • I also provide means for applying forces to the plurality of pairs of reeds by magnetically coupling the resulting assembly between two remanently magnetic members having energizable windings thereon in a manner similar to that disclosed in U.S. Patent No. 2,995,637 issued on August 8, 1961 to A. Feiner et al.
  • To operate the plurality of pairs of reeds I apply, as in the manner disclosed in the mentioned Patent 2,995,637, short duration electronic pulses to the windings of the remanently magnetic members to establish appropriate remanent magnetization states in the magnetic members.
  • the plurality of pairs ⁇ of reeds are appropriately magnetized to cause magnetic forces of attraction between respective pairs of reeds causing the reeds to tend to close.
  • the first pair of reeds having the narrowest gap width is closed, a substantial portion of the magnetic iiux resulting from the magnetization state iiows through the low reluctance path of the closed first pair of reeds. Consequently, a proportionately smaller amount of magnetic flux is available to eiiect closure of the next adjacent second pair of reedsv having the next greater gap width.
  • a part of the force causing movement of the rst pair of reeds is transmitted by the magnetic plastic casing to the second and remaining pairs of reeds thereby compensating for the decreased amount of magnetic iiux and thereby assisting operation of the second and remaining pairs of reeds.
  • the second and succeeding pairs of reeds are closed, disproportionately greater amounts of magnetic tiux will be shunted by the closed pairs of reeds thereby leaving a disproportionately smaller amount of magnetic iiux available to operate the next adjacent pairs of reeds.
  • the forces effecting closure of the second and succeeding pairs of reeds are, in accordance with the principles of my invention, similarly transmitted by the magnetic plastic casing in successively greater increments to the next adjacent and remaining pairs of reeds thereby compensating for the reduced iiux and thereby assisting operation of the reeds. Accordingly, when the pair of reeds having the greatest gap width is closed the preceding pairs of reeds having narrower gap widths will also be closed. Thus, a testing of the state of the last pair of reeds Will enable a quick determination of the states of the preceding pairs of reeds.
  • the plurality of pairs of operatedr reeds are released by applying, as in a manner disclosed in the mentioned Patent 2,995,637, appropriate electronic pulses to the windings of the remanently magnetic members to change the remanent magnetization states thereof and thereby to steer the magnetic flux by-passing the reeds,
  • the respective reeds are consequently demagnetized and the natural stifinesses of the reeds cause the mutual release of the reeds.
  • the magnetic plastic casing mechanically assists the release of any pairs of reeds that may become stuck for any unforeseen reason.
  • a broad feature of my invention is a multiple contact arrangement wherein a plurality of contact members are interconnected by a mechanical means having the characteristics of stepwisely varying flexibility.
  • Another feature of my invention is such an arrangement wherein the mechanical means is a casing means covering stepwisely greater portions of succeeding ones of the contact members.
  • a further feature of my invention is such an arrangement wherein the succeeding ones of the contact members are movable successively greater distances and wherein the parts of the mechanical means connected to respective contact members have a flexibility dependent upon the movable distances associated therewith.
  • Another feature of my invention is a multiple contact arrangement wherein I provide a plurality of contacts, structural means to interconnect adjacent ones of the plurality of contacts and means for applying forces to the contacts whereby responsive to the forces applied to the contacts the structural means transmits increased amounts of forces to next adjacent ones of the contacts.
  • a further feature of my invention is a multiple contact arrangement wherein I provide a first bank of reeds, a second bank of reeds positioned with respect to the first bank forming thereby a plurality of pairs of contacting reeds each of the pairs of reeds having a gap Width greater than the gap width of proceeding pair of reeds, means for applying forces to the pairs of reeds and mechanical linkage means interconnecting the reeds of at least one bank whereby responsive to the applied forces the mechanical linkage means applies increasingly greater increments of the applied forces to adjacent ones of the pairs of reeds.
  • a yet further feature of my invention is such an arrangement wherein the reeds of the first and second bank of reeds are of magnetizable material and wherein the force applying means comprises a winding means inductively coupling at least the first bank for magnetizing the pairs of reeds, whereby magnetic forces are applied to the pairs of reeds to cause the mechanical linkage means to apply increasingly greater increments of forces to adjacent ones of the pairs of reeds.
  • Another feature of my invention is such an arrangement wherein responsive to energization of the winding, the plurality of pairs of reeds are sequentially closed, the mechanical linkage means transmits and imparts to the succeeding pairs of reeds increasingly greater increments of forces thereby compensating for the decreased amount of magnetic ux available to close the succeeding pairs of reeds resulting from closure of preceding pairs of reeds.
  • a still further feature of my invention is such an arrangement wherein the force applying means comprises a remanently magnetic structure to which the rst and second banks of reeds are magnetically coupled and comprises winding means inductively coupled to the structure to establish particular remanent magnetization states thereby to tend to sequentially move the pairs of reeds and wherein the mechanical linkage means responsive to movement of the pairs of reeds assists in the operation of the pairs of reeds by transmitting increasing increments of mechanical forces caused by movement of the pairs of reeds to succeeding ones of the pairs of reeds.
  • FIG. l is a pictorial view of one embodiment illustrative of the principles of my invention.
  • FIG. 2 is a plan View of another embodiment of my invention which combines two assemblies of FIG. 1 in a multiple contact arrangement; I l
  • FIG. 3 is a cross section of the embodiment of FIG. 2 as viewed from the direction 3-3 in FIG. 2;
  • FIG. 4 is a cross section of the embodiment of FIG. 2 as viewed from the direction 4 4 in FIG. 2;
  • FIG. 5 is a pictorial View with a partial cross section of the embodiment of FIG. 2 combined with a magnetizing circuit utilized for operation thereof;
  • FIG. 6 is an illustrative diagram of the forces applied to the respective contacts of the embodiment of FIG. 2 during the operation thereof.
  • FIG. 1 there is shown a plurality of contact members 1a-1f and interconnecting these members, a body structure 2, which body structure comprises an enlarged portion 2a forming a base rigidly holding the terminal ends of the members ltr-1f and a casing 2b stepwisely encasing the free exing ends of the members ltr-1f in the manner shown.
  • the body structure 2 is preferably, but not essentially, of a magnetic material, such as magnetic plastic, which can effectively magnetically couple the base and casing to the plurality of contact members.
  • the base 2a is employed herein to illustrate both a supporting structure for members la-lf and a reference point with respect to which the members move in response to forces applied thereto.
  • the casing 2b although shown to encase and solidly interconnect members 1ra-1f, can also be a covering which interconnects and mechanically links the members without a solid piece therebetween. In either situation the casing 2b has its extended portions of successively greater rigidity. Thus, as will be discussed hereinafter in greater detail with respect to the operation of the embodiment of FIG. 2, forces applied to the free flexing ends of the members liz-1f will be transmitted by the casing 2b in successively greater increments to the succeeding members.
  • the characteristic of the casing 2b of progressively increasing rigidity can also be attained by other geometrical casing arrangements. For example, a triangular casing can be employed which varies in length from the least length covering of member la to the greatest length covering of member 1f.
  • FIGS. 2, 3, and 4 there are shown a first assembly similar to the embodiment of FIG. 1 comprising a plurality of contact members or reeds 1ct-1f, interconnected by body structure 2, having base 2a and casing 2b and a second assembly similar to the embodiment of FIG. l comprising a plurality of contact members or reeds 3cr-3f, interconnected by a body structure 4 having base 4a and casing 4b.
  • the two assemblies are enclosed in a vitreous envelope 6, which envelope 6 is cut away to reveal its structure, and are disposed in the manner shown forming thereby a plurality of overlapping pairs of contacts StZ-5f at the free flexing ends of the reeds Irl-1f and Saz-3f.
  • FIG. 3 shows reed 1 overlapping reed 3 to form contact pair 5, and body structures 2 and 4 holding the reeds 1 and 3, respectively, and supporting the vitreous envelope 6.
  • the vitreous envelope 6 may be of any material, preferably of glass, and is Welded to the body structures 2 and 4 in a known manner, to thereby form a sealed enclosure to protect the plurality of contacts contained therein.
  • the envelope 6 and the body structures 2 and 4 form a rigid supporting structure for the plurality of reeds and a reference point with respect to which the reeds are movable.
  • the casings 2b and 4b are symmetrically disposed in the manner shown with the portions of the casing having the least rigidity being associated with reeds 1a and 3a and with the rigidity of the casing portions increasing until the portions of the casing associated with the reeds 1f and 3f have the greatest rigidity.
  • the two assemblies are preferably arranged such that the gaps between the contacting pairs 5 of the successive pairs of reeds have successively ⁇ greater air gaps.
  • This can best be seen with reference to FIG. 4 in which the contact pairs Sa-Sf are shown enclosed within envelope 6.
  • the contact pairs 5cl-5f formed by the arrangement of the two assemblies, have increasingly greater air gaps starting with the contact pair 5a having the narrowest gap and progressing to the greatest gap between the contact pair 5f.
  • the contact gaps are related to the rigidity of the casing portions associated with the reeds thereof.
  • the contact pair 5a having the narrowest gap is associated with the portions of the casings 2b and 4b having the least rigidity and contact pair 5f having the greatest gap is associated with the portions of the casings 2b and 4b having the greatest rigidity.
  • the gaps in some cases may be desired to be substantially the same. While necessary in some specific aspects of my invention, the gap spacing need not be of varying width as above described in order to practice my invention in its broader aspects.
  • FIG. 5 there is shown the contact arrangement of FIG. 2 positioned between and magnetically coupled to a pair of remanently magnetic members 7a and 7b.
  • the remanent members '7a and 7b have inductively coupled thereto the respective windings 3a and 8b.
  • a cross section is shown of the remanently magnetic members and contacting arrangement in order to clearly illustrate the structure of the entire arrangement.
  • superimposed upon the pair of remanently magnetic members '7a and 7b are arrows 9a and 9b, respectively, which arrows represent the suitable remanent magnetization states of the respective members. These arrows will be subsequently referred to in discussing the actuation of the contacting pairs 5.
  • the body structures 2 and 4 are shown magnetically coupled to the remanently magnetic members 7a-7b to provide a low reluctance path for the magnetic flux used to operate the contact pairs 5.
  • the remanently magnetic members 7a and 7b are used to supply forces to the free ilexing ends of the contact members by supplying magnetic flux between the contacting pairs 5 thereby permitting magnetic attraction of the free flexing ends of the reeds.
  • Other means of supplying forces to the free flexing ends of the reeds can be employed.
  • coil means wound around the entire arrangement of FIG. 2 can be employed in a manner known in the art, or a mechanical force applying mechanism can be eifectively employed.
  • I actuate the plurality of contacting pairs 5a5f by applying an appropriate pulse, positive in this case, to the plus (-1-) terminals of the windings 8a and 8b and grounding the minus terminals.
  • This causes a magnetic eld to be established within the windings 8a and 8b suicient to establish a remanent magnetization state in both of the remanently magnetic members 7a and 7b to be in a direction as shown by the arrows 9a and 9b, respectively.
  • the lowered reluctance between the members enables magnetic flux to be shunted through the closed pair of contacts Sain an amount which leaves a disproportionately smaller amount of magnetic ux available to flow through each of the remaining pairs of contacts Sb-Sf.
  • the embodiment shown in FIG. 5 there are six pairsv of reeds and contact pairs. Thus, disregarding any losses, normally one-sixth of the total flux would be available to tlow through each of the contact pairs.
  • the force supplied by the magnetic flux to the irst pair of contacts 5a is transmitted by the casing 2b and 4b as mechanical forces from the rst pair of contact members 1a and 3a to the second and remaining pairs of contact members 1b-1f and 31u-3f. More specically, as shown in FIG. 6 by line B, this transmitted mechanical force of two units is applied to each of the Contact pairs Sb-S. It causes the second and remaining pairs of Vcontacts Sb-Sf to move approximately the same distance moved by the rst pair of contacts 5a.
  • closure of the second and remaining pairs of contacts Sb-Sf shunts therethrough disproportionate amounts of magnetic flux thereby supplying decreasing amounts of magnetic forces of 14, 111/2, 81/2 and 5 units to the succeeding pairs of contacts 5c, 5d, 5e, and 5f, respectively, (as shown by line A of FIG. 6).
  • closure of the second and remaining pairs of contacts Sli-5f has asecond effect.
  • a released state is effected by applying appropriate pulses, in this case a positive pulse, and a negative pulse, respectively, to the plus (-1-) terminals of the windings 9a and 9b, with the minus terminals thereof grounded.
  • appropriate pulses in this case a positive pulse, and a negative pulse, respectively, to the plus (-1-) terminals of the windings 9a and 9b, with the minus terminals thereof grounded.
  • This causes the remanent magnetization of the remanently magnetic member 7b to be reverse of arrow 9b and the remanent magnetization of the member 7a to be the same as arrow 9a as shown in FIG. 5.
  • the casings 2b and 4b are not detrimental to the release of the reeds but may be helpful thereto by providing a degree of stiffness to the reeds and by transmitting forces between the variousreeds permitting thereby release of any stuck reeds.
  • a multiple contact arrangement comprising a plurality of contact members and mechanical means having portions thereof interconnecting adjacent ones of said plurality of contact members, said mechanical means being in addition to said contact members and having at different said portions the characteristic of stepwise varying rigidity.
  • a mutiple contact arrangement comprising a first plurality of contacts and structural means having parts thereof mechanically linking said first plurality of contacts, said structural means being in addition to said contacts and having at different said parts the characteristics of stepwise varying fiexibility dependent upon the characteristics of the particular contacts associated with said parts.
  • said first and second plurality of contacts are of magnetizable material and wherein said operating means comprises winding means for generating magnetic forces between said first and second plurality of contacts tending thereby to sequentially operate said pairs of contacts, and wherein said encasing means responsive to said magnetizing forces sequentially transmits increased increments of said forces to adjacent pairs of contacts thereby assisting the sequential operation of said pairs of contacts.
  • a multiple contact arrangement comprising a plurality of contact members, means for applying forces to said members and mechanical means having portions thereof interconnecting adjacent ones of said contact members, said mechanical means being in addition to said contact members and having a different said portions the characteristic of varied rigidity whereby said forces applied to said members will be transmitted incrementally to next adjacent ones of said contact members.
  • said contact members comprise magnetizable material
  • said force applying means includes means for magnetizing said members thereby causing a magnetic force, said magnetic force tending to move said members, and wherein said mechanical means in response to said tendency of movement of said members applies to neXt adjacent members successively greater amounts of said forces.
  • a multiple contact arrangement comprising a first plurality'of contact members and a second plurality of contact members arranged in overlapping relationships forming thereby a plurality of pairs of overlapping contact members, each succeeding pair of said plurality of overlapping contact members having a greater gap than the preceding pair, operating means for appropriately magnetizing said plurality of overlapping contact members thereby tendingto cause substantial attraction of ones of said pairs of overlapping contact members in an order dependent upon the width of the said gaps, and mechanical means having portions thereof interconnecting each of said first plurality, said mechanical means being in addition to said first plurality and having at different said portions the characteristic of varying rigidity whereby responsive to the movement of said ones of said pairs of contact members said mechancal means will apply successively greater mechanical forces to succeeding ones of said pairs of contact members to thereby urge said succeeding pairs of contact members into engagement.
  • portions of said mechanical means comprise a plastic casing covering the nonoverlapping ends of said succeeding contact members in successively greater lengths.
  • a multiple contact arrangement comprising a plurality of pairs of contacts, means for applying particular amounts of forces to said contacts, and structural means in addition to said contacts and having portions thereof interconnecting particular ones of said contacts whereby forces applied by said force applying means to said pairs of contacts will be transmitted in successively greater increments by said structural means to others of said pairs of contacts.
  • said plurality of pairs of contacts comprises a first plurality and a second plurality of contacts positioned such that each of said pairs of contacts formed thereby have a different spacing between the contacts thereof, and wherein said structural means mechanically interconnects at least each of said first plurality of contacts and has at different said portions the characteristics of varying rigidity.
  • a multiple contact arrangement comprising a plurality of resilient contact members, and mechanical means additional to said contact members and interconnecting said members so as to impart different stifinesses to different prescribed members and so as to impart mechanical interdependency to selected pairs of members.
  • said mechanical means comprises means common to said members for supporting said members, means individual to each member for imparting a prescribed stiffness thereto, and means interconnecting said common means with said individual means of selected pairs of members.
  • interconnecting means interconnects said common means with pairs of members having different stifnesses.
  • a a multiple contact arrangement comprising a plurality of elongated resilient contact members of substantially equal physical size and composition and a mold encasing said members and supporting said members in substantially coplanar and longitudinally coextensive relationship, said mold comprising a base portion common to said members and encasing substantially equal lengths of said members near one set of ends thereof, contact portions for said members extending from said base portion toward the other ends of said members and encasing successively greater lengths of successive prescribed members, and connecting portions extending from said base portion toward the said other ends of said members and interconnecting contact portions of adjacent members throughout the lengths of the shorter contact portions.
  • a multiple contact arrangement comprising a plurality of pairs of magnetic reed contact members magnetically arranged in parallel; means for applying magnetizing force in common to said reed contact members to effect sequential closure thereof; and mechanical coupling means interconnecting said reed contact members for providing a mechanical force to assist closure of succeeding open contact members to compensate for loss of magnetic force due to shunting of magnetic ilux by the preceding closed contact members.
  • a multiple contact arrangement comprising a first assembly including a iirst plurality of reeds, iirst body means interconnecting said first plurality of reeds, said rst body means including a first base for said first plurality of reeds and a iirst casing extending from said base covering progressively greater lengths of said first plurality of reeds; a second assembly including a second plurality of reeds, second body means interconnecting said second plurality of reeds, said second body means including a second base for said second plurality of reeds and a second casing extending from said base covering progressively greater lengths of said second plurality of reeds, said rst and second assemblies arranged to deiine of said rst and second plurality of reeds a plurality of pairs of contacts, each of said pairs of contacts having a gap spacing greater than the gapspacing of the preceding pair of contacts

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Magnetic Treatment Devices (AREA)
  • Package Frames And Binding Bands (AREA)
  • Tires In General (AREA)
  • Contacts (AREA)
US143652A 1961-10-09 1961-10-09 Multiple contact arrangement with force transmitting mechanical connector Expired - Lifetime US3134868A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
BE623335D BE623335A (ja) 1961-10-09
US143652A US3134868A (en) 1961-10-09 1961-10-09 Multiple contact arrangement with force transmitting mechanical connector
GB37497/62A GB1021233A (en) 1961-10-09 1962-10-04 Improvements in or relating to electrical multiple contact arrangements
DE19621439934 DE1439934A1 (de) 1961-10-09 1962-10-04 Vielfach-Kontaktanordnung
NL284082D NL284082A (ja) 1961-10-09 1962-10-08
ES281607A ES281607A1 (es) 1961-10-09 1962-10-08 Dispositivo de contactos múltiples
JP4364562A JPS401772B1 (ja) 1961-10-09 1962-10-09
FR911744A FR1337584A (fr) 1961-10-09 1962-10-09 Agencement à plusieurs contacts
CA706995A CA706995A (en) 1961-10-09 1965-03-30 Multiple contact arrangement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US143652A US3134868A (en) 1961-10-09 1961-10-09 Multiple contact arrangement with force transmitting mechanical connector

Publications (1)

Publication Number Publication Date
US3134868A true US3134868A (en) 1964-05-26

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ID=22504992

Family Applications (1)

Application Number Title Priority Date Filing Date
US143652A Expired - Lifetime US3134868A (en) 1961-10-09 1961-10-09 Multiple contact arrangement with force transmitting mechanical connector

Country Status (8)

Country Link
US (1) US3134868A (ja)
JP (1) JPS401772B1 (ja)
BE (1) BE623335A (ja)
CA (1) CA706995A (ja)
DE (1) DE1439934A1 (ja)
ES (1) ES281607A1 (ja)
GB (1) GB1021233A (ja)
NL (1) NL284082A (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3794944A (en) * 1972-09-18 1974-02-26 Morex Inc Reed switches and process for making them
US4042799A (en) * 1974-09-21 1977-08-16 Elmeg Elektro-Mechanik Gmbh Damping of contacts
US4160223A (en) * 1976-10-04 1979-07-03 Morex, Inc. Plural reed switches having an integral, interconnecting web
CN102762265A (zh) * 2009-10-16 2012-10-31 伊梅森公司 用于以多个共振频率来提供触觉反馈的系统和方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3471813A (en) * 1968-03-14 1969-10-07 Sylvania Electric Prod Hermaphroditic multi-contact reed switch
GB2131230A (en) * 1982-10-07 1984-06-13 Weston William A Electric switching devices

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1174229A (en) * 1909-05-07 1916-03-07 Hall Switch & Signal Co Railway signaling system.
US1190923A (en) * 1911-03-07 1916-07-11 Otis Elevator Co Controlling mechanism for induction-motors.
US2076115A (en) * 1932-06-20 1937-04-06 Evr Eclairage Vehicules Rail Comb regulator for electric machines
US2163195A (en) * 1936-10-08 1939-06-20 American Telephone & Telegraph Mechanical relay
US2535400A (en) * 1949-08-25 1950-12-26 Bell Telephone Labor Inc Multicontact dry reed relay
US2550779A (en) * 1950-04-25 1951-05-01 Arthur M Cohen Electromagnetic unit
US2950368A (en) * 1957-11-04 1960-08-23 Gulton Ind Inc Resonant reed relay

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1174229A (en) * 1909-05-07 1916-03-07 Hall Switch & Signal Co Railway signaling system.
US1190923A (en) * 1911-03-07 1916-07-11 Otis Elevator Co Controlling mechanism for induction-motors.
US2076115A (en) * 1932-06-20 1937-04-06 Evr Eclairage Vehicules Rail Comb regulator for electric machines
US2163195A (en) * 1936-10-08 1939-06-20 American Telephone & Telegraph Mechanical relay
US2535400A (en) * 1949-08-25 1950-12-26 Bell Telephone Labor Inc Multicontact dry reed relay
US2550779A (en) * 1950-04-25 1951-05-01 Arthur M Cohen Electromagnetic unit
US2950368A (en) * 1957-11-04 1960-08-23 Gulton Ind Inc Resonant reed relay

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3794944A (en) * 1972-09-18 1974-02-26 Morex Inc Reed switches and process for making them
US3866317A (en) * 1972-09-18 1975-02-18 Morex Inc Reed switches and process for making them
US4042799A (en) * 1974-09-21 1977-08-16 Elmeg Elektro-Mechanik Gmbh Damping of contacts
US4160223A (en) * 1976-10-04 1979-07-03 Morex, Inc. Plural reed switches having an integral, interconnecting web
CN102762265A (zh) * 2009-10-16 2012-10-31 伊梅森公司 用于以多个共振频率来提供触觉反馈的系统和方法
CN102762265B (zh) * 2009-10-16 2015-04-29 意美森公司 用于以多个共振频率来提供触觉反馈的系统和方法

Also Published As

Publication number Publication date
ES281607A1 (es) 1963-02-01
GB1021233A (en) 1966-03-02
JPS401772B1 (ja) 1965-01-30
CA706995A (en) 1965-03-30
BE623335A (ja)
NL284082A (ja) 1965-01-11
DE1439934A1 (de) 1969-01-16

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