US2264746A - Electromagnetic switch - Google Patents
Electromagnetic switch Download PDFInfo
- Publication number
- US2264746A US2264746A US342629A US34262940A US2264746A US 2264746 A US2264746 A US 2264746A US 342629 A US342629 A US 342629A US 34262940 A US34262940 A US 34262940A US 2264746 A US2264746 A US 2264746A
- Authority
- US
- United States
- Prior art keywords
- magnetic
- contact
- magnetic member
- electromagnetic switch
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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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
Definitions
- This invention relates to switches and particularly to electromagneticaliy operated switches.
- the object of the invention is to provide a relay unit contact device which is economical, reliable and easily replaceable.
- a feature of the invention is a contact arrangement for transfer operation consisting essentially of contacts of magnetic material sealed in a vessel either. evacuated or filled with an inert gas which may be operated by an external magnetic force whereby costly contact metals are eliminated.
- an inert gas which may be operated by an external magnetic force whereby costly contact metals are eliminated.
- two magnetic elements are placed lengthwise in the vessel and are slightly overlapping but normally out of contact with each other.
- a third and nonmagnetic member which is normally in contact with the other said magnetic element.
- this unit When an external magnetic force is applied to this unit the two magnetic members which form part of the magnetic circuit as well as part of the electrical circuit of the device are moved together whereby the contact from the second magnetic element is transferred from the non-magnetic element to the first magnetic element since the external magnetic force acts to diminish the air-gap between the two said magnetic elements.
- the construction of this device involves the use of an insulating member to maintain constant separation between the said non-magnetic element and its associated magnetic element, whereby the second magnetic element thus effectively travels between the two.
- Another feature of the invention is the use of a movable contact assembly.
- this type relay where the part corresponding to the armature'in a normal relay and the part corresponding to the front contact in a normal relay are both part of the magnetic circuit and both are subject to movement when energized, the part corresponding to the back contact of a normal relay must be made comparatively flexible and caused to move with the front contact since the direction of movement of such front contact is toward the back contact.
- This contact device is of the general nature shown in Patent 2,187,115 to Ellwood et al., January 16, 1940. v
- the drawing consists of a single sheet showing three cross-section views of the contact unit.
- Fig. 1 shows a cross-section of the unit when taken lengthwise.
- l is a glass envelope which may be evacuated or filled with an inert gas to prevent corrosion or oxidation.
- 2 is a terminal entering the envelope to which is attached a resilient magnetic member 3.
- a non-magnetic member 4 and a conducting member 5 are sealed into the glass.
- a magnetic member 6 is attached to the conducting member 5 in any well-known manner, for instance, by welding.
- the non-magnetic member 4 and the magnetic member 6 are held to a permanent degree of separation by an insulating piece 1.
- the non-magnetic member 4, the magnetic member 6 and the insulating piece I may be slightly movable as a unit.
- FIG. 1 the contact device is nonoperated and a connection is made between the non-magnetic member 4 and the magnetic member 3.
- FIG. 2 the device is shown in its operated position with contact being made between the magnetic member 6 and the magnetic member 3.
- Fig. 3 shows a cross-section on the lines 3 3 to illustrate one method by which the insulating piece I may be attached to the non-magnetic member 4 and the magnetic member 6.
- This contact device may be operated by a coil external to the envelope I whereby the magnetic members 3 and 6 become part of the magnetic circuit as well as part of the electrical circuit of the device.
- a magnetically operated switch structure comprising a pair of magnetic reeds mounted longitudinally in an evacuated or inert gas-filled tube with their inner ends overlapping but normally out of contact with each other, a third non-magnetic element mounted longitudinally and permanently spaced from its companion magnetic reed by insulation whereby said nonmagnetic member and its companion magnetic reed will flex as a unit, said non-magnetic member being normally in contact with the other of said magnetic reeds, and means for producing a magnetomotive force along the axis of said tube for causing the normal air gap between said magnetic reeds to shorten to cause a transfer of contacts between said elements.
- a magnetically operated switch structure comprising an evacuated or inert gas-filled tube, a magnetic reed sealed into one end of said tube and extending parallel to the axis of said tube, another magnetic reed sealed into the other end of said tube and extending parallel to the axis of said tube, the other ends of said magnetic toward each other the contact between said set! 0nd reed and said non-maanetic member will be broken and a contact between said magnetic reeds will be established. and means for energizin: said contact device by a field extending along the axis of said tube.
Description
Dec. 2, 1941. w.'B. ELLWOOD V 2,264,743v ELECTROMAGNETIC SWITCH Filed Junev 27, 1940 FIG.
I INVENTOR v mafluvooo 1 I 'U I,
4 TTORNE V Patented Dec. 2, 1941 ELECTROMAGNETIC SWITCH Walter B. Ellwood, New York, N. Y., assignor to Bell Telephone Laboratories,
Incorporated,
New York, N. Y., a corporation of New York Application June 2'1, 1940, Serial No. 342,629
2 Claims.
This invention relates to switches and particularly to electromagneticaliy operated switches.
The object of the invention is to provide a relay unit contact device which is economical, reliable and easily replaceable.
A feature of the invention is a contact arrangement for transfer operation consisting essentially of contacts of magnetic material sealed in a vessel either. evacuated or filled with an inert gas which may be operated by an external magnetic force whereby costly contact metals are eliminated. To secure transfer operations two magnetic elements are placed lengthwise in the vessel and are slightly overlapping but normally out of contact with each other. To one of these elements is secured by insulation a third and nonmagnetic member which is normally in contact with the other said magnetic element. When an external magnetic force is applied to this unit the two magnetic members which form part of the magnetic circuit as well as part of the electrical circuit of the device are moved together whereby the contact from the second magnetic element is transferred from the non-magnetic element to the first magnetic element since the external magnetic force acts to diminish the air-gap between the two said magnetic elements. The construction of this device involves the use of an insulating member to maintain constant separation between the said non-magnetic element and its associated magnetic element, whereby the second magnetic element thus effectively travels between the two.
Another feature of the invention is the use of a movable contact assembly. In this type relay where the part corresponding to the armature'in a normal relay and the part corresponding to the front contact in a normal relay are both part of the magnetic circuit and both are subject to movement when energized, the part corresponding to the back contact of a normal relay must be made comparatively flexible and caused to move with the front contact since the direction of movement of such front contact is toward the back contact. r
This contact device is of the general nature shown in Patent 2,187,115 to Ellwood et al., January 16, 1940. v
The drawing consists of a single sheet showing three cross-section views of the contact unit.
Fig. 1 shows a cross-section of the unit when taken lengthwise. l is a glass envelope which may be evacuated or filled with an inert gas to prevent corrosion or oxidation. 2 is a terminal entering the envelope to which is attached a resilient magnetic member 3. At the other end of this device a non-magnetic member 4 and a conducting member 5 are sealed into the glass. A magnetic member 6 is attached to the conducting member 5 in any well-known manner, for instance, by welding. The non-magnetic member 4 and the magnetic member 6 are held to a permanent degree of separation by an insulating piece 1. The non-magnetic member 4, the magnetic member 6 and the insulating piece I may be slightly movable as a unit.
As shown in Fig. 1 the contact device is nonoperated and a connection is made between the non-magnetic member 4 and the magnetic member 3. In Fig. 2 the device is shown in its operated position with contact being made between the magnetic member 6 and the magnetic member 3. This illustrates. how the insulating piece I prevents the non-magnetic member 4 which is tensioned'downwardly from following the nonmagnetic member 3 when it moves into contact with the magnetic member 5. Fig. 3 shows a cross-section on the lines 3 3 to illustrate one method by which the insulating piece I may be attached to the non-magnetic member 4 and the magnetic member 6.
This contact device may be operated by a coil external to the envelope I whereby the magnetic members 3 and 6 become part of the magnetic circuit as well as part of the electrical circuit of the device.
What is claimed is:
v 1. A magnetically operated switch structure comprising a pair of magnetic reeds mounted longitudinally in an evacuated or inert gas-filled tube with their inner ends overlapping but normally out of contact with each other, a third non-magnetic element mounted longitudinally and permanently spaced from its companion magnetic reed by insulation whereby said nonmagnetic member and its companion magnetic reed will flex as a unit, said non-magnetic member being normally in contact with the other of said magnetic reeds, and means for producing a magnetomotive force along the axis of said tube for causing the normal air gap between said magnetic reeds to shorten to cause a transfer of contacts between said elements.
2. A magnetically operated switch structure comprising an evacuated or inert gas-filled tube, a magnetic reed sealed into one end of said tube and extending parallel to the axis of said tube, another magnetic reed sealed into the other end of said tube and extending parallel to the axis of said tube, the other ends of said magnetic toward each other the contact between said set! 0nd reed and said non-maanetic member will be broken and a contact between said magnetic reeds will be established. and means for energizin: said contact device by a field extending along the axis of said tube.
WALTER B. ELI-WOOD.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US342629A US2264746A (en) | 1940-06-27 | 1940-06-27 | Electromagnetic switch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US342629A US2264746A (en) | 1940-06-27 | 1940-06-27 | Electromagnetic switch |
Publications (1)
Publication Number | Publication Date |
---|---|
US2264746A true US2264746A (en) | 1941-12-02 |
Family
ID=23342611
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US342629A Expired - Lifetime US2264746A (en) | 1940-06-27 | 1940-06-27 | Electromagnetic switch |
Country Status (1)
Country | Link |
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US (1) | US2264746A (en) |
Cited By (46)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2491907A (en) * | 1946-06-11 | 1949-12-20 | Stevens Arnold Inc | Polarized magnetic switch structure |
US2506414A (en) * | 1947-12-05 | 1950-05-02 | Bell Telephone Labor Inc | Sealed wire contact device |
US2535400A (en) * | 1949-08-25 | 1950-12-26 | Bell Telephone Labor Inc | Multicontact dry reed relay |
US2570315A (en) * | 1948-07-07 | 1951-10-09 | Ford Motor Co | Magnetic operated switch |
US2648167A (en) * | 1948-12-18 | 1953-08-11 | Bell Telephone Labor Inc | Machine for manufacturing switches |
US2696543A (en) * | 1948-12-18 | 1954-12-07 | Bell Telephone Labor Inc | Electric switch |
US2732451A (en) * | 1946-07-05 | 1956-01-24 | Degler | |
US2760027A (en) * | 1953-05-12 | 1956-08-21 | Iron Fireman Mfg Co | High speed relay |
US2764647A (en) * | 1952-01-11 | 1956-09-25 | Cook Electric Co | Magnetostrictive relay |
US2840660A (en) * | 1955-06-16 | 1958-06-24 | G M Giannini & Co Inc | Double-throw magnetically operated sealed switch |
US2840661A (en) * | 1955-06-16 | 1958-06-24 | G M Giannini & Co Inc | Magnetic switch device |
DE1033762B (en) * | 1955-12-28 | 1958-07-10 | Siemens Ag | Protective tube changeover contact controlled by a magnetic field |
US2845506A (en) * | 1954-06-28 | 1958-07-29 | Pioneer Electronic Corp | High voltage high vacuum relay |
DE1064428B (en) * | 1957-10-23 | 1959-08-27 | Siemens Ag | Arrangement for the control of devices on the route through the moving container |
US2922856A (en) * | 1956-12-20 | 1960-01-26 | Siemens Ag | Electromagnetic switch |
DE1108593B (en) * | 1959-02-09 | 1961-06-08 | Werner Voss | Device for arming an electrical anti-theft and anti-theft device, especially for motor vehicles |
US2997546A (en) * | 1958-11-04 | 1961-08-22 | Bell Telephone Labor Inc | Switching device |
US3030451A (en) * | 1958-11-04 | 1962-04-17 | Bell Telephone Labor Inc | Switching device |
US3250875A (en) * | 1964-01-21 | 1966-05-10 | Wintriss George | Reed switch |
US3315193A (en) * | 1964-11-12 | 1967-04-18 | Briggs & Stratton Corp | Reed switch adapted for rapid cycling |
DE1514750B1 (en) * | 1965-03-16 | 1970-07-16 | Standard Elek K Lorenz Ag | Single or multiple contact in a closed housing |
US3943474A (en) * | 1973-10-09 | 1976-03-09 | Shlesinger Jr Bernard E | Reed and reed switch therefor |
US4038620A (en) * | 1973-10-09 | 1977-07-26 | Shlesinger Jr B Edward | Magnetic reed switch |
US20060125603A1 (en) * | 2004-12-09 | 2006-06-15 | Telematics Wireless Ltd. | Toll transponder with deactivation means |
US20060150361A1 (en) * | 2003-02-14 | 2006-07-13 | Dyson Technology Limited | Autonomous machine |
US20060252469A1 (en) * | 2005-05-09 | 2006-11-09 | Roger Lu | Shut down mechanism for handheld device |
US20080074214A1 (en) * | 2006-09-22 | 2008-03-27 | Julian Poyner | Safety switch |
US20090091287A1 (en) * | 2006-05-13 | 2009-04-09 | Linak A/S | Linear Actuator |
EP2061037A2 (en) * | 2007-11-15 | 2009-05-20 | GE-Hitachi Nuclear Energy Americas LLC | Method and apparatus for permissive control of a mast and grapple |
US20110218810A1 (en) * | 2010-03-02 | 2011-09-08 | Momilani Ramstrum | System for Controlling Digital Effects in Live Performances with Vocal Improvisation |
US8111119B2 (en) | 2003-02-19 | 2012-02-07 | Gilmore Glendell N | Reed switch apparatus and method of using same |
US8734262B1 (en) | 2008-09-23 | 2014-05-27 | David A. Yovanovich | Billiard ball rack positioning system and use thereof |
CN105464745A (en) * | 2015-12-18 | 2016-04-06 | 重庆五福科技有限公司 | Engine and engine oil alarm |
US20160311698A1 (en) * | 2015-04-24 | 2016-10-27 | Maxtec Plastics, Inc. | Ultraviolet-ray lamp water sterilization device and method for controlling the same |
EP3116080A1 (en) | 2015-07-08 | 2017-01-11 | Vestel Elektronik Sanayi ve Ticaret A.S. | A high efficiency limiter circuit |
WO2017040397A1 (en) | 2015-09-04 | 2017-03-09 | 3M Innovative Properties Company | Personal protective equipment and methods of monitoring time of usage of personal protective equipment |
RU2629002C2 (en) * | 2015-12-28 | 2017-08-24 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Рязанский государственный радиотехнический университет" | Sensitivity increasing method of magnetic-controlled switches |
US10212782B2 (en) | 2015-04-30 | 2019-02-19 | William F. Harris, Jr. | Device and method for mode control of wildlife-friendly lighting |
EP3771478A2 (en) | 2019-08-02 | 2021-02-03 | Biosense Webster (Israel) Ltd | Patient-safe electromechanical switching for pacing with a catheter having multiple electrodes |
US11025725B2 (en) | 2015-09-01 | 2021-06-01 | 3M Innovative Properties Company | Providing safety related contextual information in a personal protective equipment system |
US11084066B2 (en) | 2011-08-05 | 2021-08-10 | Gui Global Products, Ltd. | System comprising a portable switching device for use with a portable electronic device |
US11114263B2 (en) | 2018-12-18 | 2021-09-07 | Eaton Intelligent Power Limited | Magnetic electrical switch |
US11212929B2 (en) | 2012-11-05 | 2021-12-28 | Gui Global Products, Ltd. | Devices and accessories employing a living hinge |
US20220403689A1 (en) * | 2021-06-21 | 2022-12-22 | Component Hardware Group, Inc. | Switch Hinge |
US11751759B2 (en) | 2016-04-21 | 2023-09-12 | Baylor College Of Medicine | Trocars |
US11805968B2 (en) | 2019-11-05 | 2023-11-07 | Bayou Surgical, Inc. | Intraoperative endoscope cleaning system |
-
1940
- 1940-06-27 US US342629A patent/US2264746A/en not_active Expired - Lifetime
Cited By (71)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2491907A (en) * | 1946-06-11 | 1949-12-20 | Stevens Arnold Inc | Polarized magnetic switch structure |
US2732451A (en) * | 1946-07-05 | 1956-01-24 | Degler | |
US2506414A (en) * | 1947-12-05 | 1950-05-02 | Bell Telephone Labor Inc | Sealed wire contact device |
US2570315A (en) * | 1948-07-07 | 1951-10-09 | Ford Motor Co | Magnetic operated switch |
US2648167A (en) * | 1948-12-18 | 1953-08-11 | Bell Telephone Labor Inc | Machine for manufacturing switches |
US2696543A (en) * | 1948-12-18 | 1954-12-07 | Bell Telephone Labor Inc | Electric switch |
US2535400A (en) * | 1949-08-25 | 1950-12-26 | Bell Telephone Labor Inc | Multicontact dry reed relay |
US2764647A (en) * | 1952-01-11 | 1956-09-25 | Cook Electric Co | Magnetostrictive relay |
US2760027A (en) * | 1953-05-12 | 1956-08-21 | Iron Fireman Mfg Co | High speed relay |
US2845506A (en) * | 1954-06-28 | 1958-07-29 | Pioneer Electronic Corp | High voltage high vacuum relay |
US2840660A (en) * | 1955-06-16 | 1958-06-24 | G M Giannini & Co Inc | Double-throw magnetically operated sealed switch |
US2840661A (en) * | 1955-06-16 | 1958-06-24 | G M Giannini & Co Inc | Magnetic switch device |
DE1033762B (en) * | 1955-12-28 | 1958-07-10 | Siemens Ag | Protective tube changeover contact controlled by a magnetic field |
US2922856A (en) * | 1956-12-20 | 1960-01-26 | Siemens Ag | Electromagnetic switch |
DE1064428B (en) * | 1957-10-23 | 1959-08-27 | Siemens Ag | Arrangement for the control of devices on the route through the moving container |
US2997546A (en) * | 1958-11-04 | 1961-08-22 | Bell Telephone Labor Inc | Switching device |
US3030451A (en) * | 1958-11-04 | 1962-04-17 | Bell Telephone Labor Inc | Switching device |
DE1108593B (en) * | 1959-02-09 | 1961-06-08 | Werner Voss | Device for arming an electrical anti-theft and anti-theft device, especially for motor vehicles |
US3250875A (en) * | 1964-01-21 | 1966-05-10 | Wintriss George | Reed switch |
US3315193A (en) * | 1964-11-12 | 1967-04-18 | Briggs & Stratton Corp | Reed switch adapted for rapid cycling |
DE1514750B1 (en) * | 1965-03-16 | 1970-07-16 | Standard Elek K Lorenz Ag | Single or multiple contact in a closed housing |
US4038620A (en) * | 1973-10-09 | 1977-07-26 | Shlesinger Jr B Edward | Magnetic reed switch |
US3943474A (en) * | 1973-10-09 | 1976-03-09 | Shlesinger Jr Bernard E | Reed and reed switch therefor |
US7873437B2 (en) | 2003-02-14 | 2011-01-18 | Dyson Technology Limited | Autonomous machine |
US20060150361A1 (en) * | 2003-02-14 | 2006-07-13 | Dyson Technology Limited | Autonomous machine |
US20060161318A1 (en) * | 2003-02-14 | 2006-07-20 | Dyson Technology Limited | Autonomous machine |
US10198921B2 (en) | 2003-02-19 | 2019-02-05 | Glendell N. Gilmore | Reed switch apparatus and method of using same |
US9580208B2 (en) | 2003-02-19 | 2017-02-28 | Glendell N. Gilmore | Reed switch apparatus and method of using same |
US8866570B2 (en) | 2003-02-19 | 2014-10-21 | Glendell N. Gilmore | Reed switch apparatus and method of using same |
US8111119B2 (en) | 2003-02-19 | 2012-02-07 | Gilmore Glendell N | Reed switch apparatus and method of using same |
US8183986B2 (en) * | 2004-12-09 | 2012-05-22 | Telematics Wireless Ltd | Toll transponder with deactivation means |
US20060125603A1 (en) * | 2004-12-09 | 2006-06-15 | Telematics Wireless Ltd. | Toll transponder with deactivation means |
US20060252469A1 (en) * | 2005-05-09 | 2006-11-09 | Roger Lu | Shut down mechanism for handheld device |
US8040082B2 (en) | 2006-05-13 | 2011-10-18 | Linak A/S | Linear actuator |
US20090091287A1 (en) * | 2006-05-13 | 2009-04-09 | Linak A/S | Linear Actuator |
US20080074214A1 (en) * | 2006-09-22 | 2008-03-27 | Julian Poyner | Safety switch |
US7932644B2 (en) * | 2006-09-22 | 2011-04-26 | Rockwell Automation Limited | Safety switch |
EP2061037A2 (en) * | 2007-11-15 | 2009-05-20 | GE-Hitachi Nuclear Energy Americas LLC | Method and apparatus for permissive control of a mast and grapple |
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US8734262B1 (en) | 2008-09-23 | 2014-05-27 | David A. Yovanovich | Billiard ball rack positioning system and use thereof |
US8620661B2 (en) * | 2010-03-02 | 2013-12-31 | Momilani Ramstrum | System for controlling digital effects in live performances with vocal improvisation |
US20110218810A1 (en) * | 2010-03-02 | 2011-09-08 | Momilani Ramstrum | System for Controlling Digital Effects in Live Performances with Vocal Improvisation |
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US11241719B2 (en) | 2011-08-05 | 2022-02-08 | Gui Global Products, Ltd. | System comprising a portable switching device for use with a portable electronic device |
US11084066B2 (en) | 2011-08-05 | 2021-08-10 | Gui Global Products, Ltd. | System comprising a portable switching device for use with a portable electronic device |
US11433432B2 (en) | 2011-08-05 | 2022-09-06 | Gui Global Products, Ltd. | System comprising a portable switching device for use with a portable electronic device |
US11212929B2 (en) | 2012-11-05 | 2021-12-28 | Gui Global Products, Ltd. | Devices and accessories employing a living hinge |
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US11412630B2 (en) | 2012-11-05 | 2022-08-09 | Gui Global Products, Ltd. | Devices and accessories employing a living hinge |
US20160311698A1 (en) * | 2015-04-24 | 2016-10-27 | Maxtec Plastics, Inc. | Ultraviolet-ray lamp water sterilization device and method for controlling the same |
US10212782B2 (en) | 2015-04-30 | 2019-02-19 | William F. Harris, Jr. | Device and method for mode control of wildlife-friendly lighting |
EP3116080A1 (en) | 2015-07-08 | 2017-01-11 | Vestel Elektronik Sanayi ve Ticaret A.S. | A high efficiency limiter circuit |
US11025725B2 (en) | 2015-09-01 | 2021-06-01 | 3M Innovative Properties Company | Providing safety related contextual information in a personal protective equipment system |
US11330062B2 (en) | 2015-09-01 | 2022-05-10 | 3M Innovative Properties Company | Providing safety related contextual information in a personal protective equipment system |
WO2017040397A1 (en) | 2015-09-04 | 2017-03-09 | 3M Innovative Properties Company | Personal protective equipment and methods of monitoring time of usage of personal protective equipment |
CN105464745A (en) * | 2015-12-18 | 2016-04-06 | 重庆五福科技有限公司 | Engine and engine oil alarm |
RU2629002C2 (en) * | 2015-12-28 | 2017-08-24 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Рязанский государственный радиотехнический университет" | Sensitivity increasing method of magnetic-controlled switches |
US11751759B2 (en) | 2016-04-21 | 2023-09-12 | Baylor College Of Medicine | Trocars |
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US11114263B2 (en) | 2018-12-18 | 2021-09-07 | Eaton Intelligent Power Limited | Magnetic electrical switch |
US11717675B2 (en) | 2019-08-02 | 2023-08-08 | Biosense Webster (Israel) Ltd. | Patient-safe electromechanical switching for pacing with a catheter having multiple electrodes |
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US20220403689A1 (en) * | 2021-06-21 | 2022-12-22 | Component Hardware Group, Inc. | Switch Hinge |
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