CA2217567A1 - Suppressor case with rocking ferrite - Google Patents

Suppressor case with rocking ferrite

Info

Publication number
CA2217567A1
CA2217567A1 CA2217567A CA2217567A CA2217567A1 CA 2217567 A1 CA2217567 A1 CA 2217567A1 CA 2217567 A CA2217567 A CA 2217567A CA 2217567 A CA2217567 A CA 2217567A CA 2217567 A1 CA2217567 A1 CA 2217567A1
Authority
CA
Canada
Prior art keywords
case
ferrite
portions
conductor
pair
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.)
Granted
Application number
CA2217567A
Other languages
French (fr)
Other versions
CA2217567C (en
Inventor
James P. May
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.)
Ferrishield Inc
Original Assignee
Ferrishield 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 Ferrishield Inc filed Critical Ferrishield Inc
Publication of CA2217567A1 publication Critical patent/CA2217567A1/en
Application granted granted Critical
Publication of CA2217567C publication Critical patent/CA2217567C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H1/00—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network
    • H03H1/0007—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network of radio frequency interference filters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • H01F17/06—Fixed inductances of the signal type  with magnetic core with core substantially closed in itself, e.g. toroid
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • H01F17/06—Fixed inductances of the signal type  with magnetic core with core substantially closed in itself, e.g. toroid
    • H01F2017/065—Core mounted around conductor to absorb noise, e.g. EMI filter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus

Abstract

A noise suppressor for engagement over a cable or ribbon, has a pair of ferrite core halves held in a pair of case halves which are closed around the cable or ribbon. The noise suppressor has a pair of case portions made of resilient material, each case portion having opposite side walls and a floor for defining a space with an open top for receiving a ferrite portion, and ends for passing the conductor. Hinges and latches or latches only hold the case portions together in a closed position around a conductor with the open tops of the case portions facing each other. Ferrite portions are in each case portion, each ferrite portion having a channel and at least one face. The faces engage each other and the channels merging when the case portions are in the closed position for passage of the conductor through the channel. A raised platform on the floor of each case portion is made as one piece with the case portion and extends into the space and into engagement of the ferrite portion. The platform is spaced inwardly of the opposite side walls and ends of the case portion for allowing the ferrite which is in engagement with the platform to rock so that when the case portions are in the closed position, the faces engage flatly against each other and are held securely in that position by a slight distortion of the top and bottom case floors.
CA002217567A 1997-01-22 1997-10-07 Suppressor case with rocking ferrite Expired - Fee Related CA2217567C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/785,954 1997-01-22
US08/785,954 US5764125A (en) 1997-01-22 1997-01-22 Suppressor case with rocking ferrite

Publications (2)

Publication Number Publication Date
CA2217567A1 true CA2217567A1 (en) 1998-07-22
CA2217567C CA2217567C (en) 2000-08-08

Family

ID=25137139

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002217567A Expired - Fee Related CA2217567C (en) 1997-01-22 1997-10-07 Suppressor case with rocking ferrite

Country Status (7)

Country Link
US (1) US5764125A (en)
JP (1) JP3487577B2 (en)
CN (1) CN1127740C (en)
CA (1) CA2217567C (en)
DE (1) DE19758406B4 (en)
FR (1) FR2758648B1 (en)
GB (1) GB2321559B (en)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6377427B1 (en) 1995-03-13 2002-04-23 Square D Company Arc fault protected electrical receptacle
US6532424B1 (en) 1995-03-13 2003-03-11 Square D Company Electrical fault detection circuit with dual-mode power supply
US6313641B1 (en) 1995-03-13 2001-11-06 Square D Company Method and system for detecting arcing faults and testing such system
US6242993B1 (en) * 1995-03-13 2001-06-05 Square D Company Apparatus for use in arcing fault detection systems
US6246556B1 (en) 1995-03-13 2001-06-12 Square D Company Electrical fault detection system
US6259996B1 (en) 1998-02-19 2001-07-10 Square D Company Arc fault detection system
JPH10223440A (en) * 1997-02-04 1998-08-21 Taiyo Yuden Co Ltd Noise filter
US5933308A (en) * 1997-11-19 1999-08-03 Square D Company Arcing fault protection system for a switchgear enclosure
US6625550B1 (en) 1998-02-19 2003-09-23 Square D Company Arc fault detection for aircraft
US6782329B2 (en) 1998-02-19 2004-08-24 Square D Company Detection of arcing faults using bifurcated wiring system
US6621669B1 (en) 1998-02-19 2003-09-16 Square D Company Arc fault receptacle with a feed-through connection
US6477021B1 (en) 1998-02-19 2002-11-05 Square D Company Blocking/inhibiting operation in an arc fault detection system
JPH11261276A (en) * 1998-03-10 1999-09-24 Tdk Corp Noise countermeasure component for flat cable
JP2992269B1 (en) * 1998-06-08 1999-12-20 北川工業株式会社 Noise current absorber
US6275044B1 (en) 1998-07-15 2001-08-14 Square D Company Arcing fault detection system
JP2938446B1 (en) * 1998-09-10 1999-08-23 北川工業株式会社 Noise current absorber
US6512425B2 (en) * 1998-09-10 2003-01-28 Kitagawa Industries Co., Ltd. Electric noise absorber
DE19842323A1 (en) * 1998-09-16 2000-03-23 Wuerth Elektronik Gmbh & Co Kg Cable-mounted electromagnetic noise suppresser comprises shells containing ferromagnetic material, designed for simpler manufacture and attachment
US6218844B1 (en) 1998-12-16 2001-04-17 Square D Company Method and apparatus for testing an arcing fault circuit interrupter
US6335672B1 (en) 1998-12-23 2002-01-01 L.L. Culmat Lp Holder for ferrite noise suppressor
US6276943B1 (en) 1999-02-22 2001-08-21 Amphenol Corporation Modular plug connector and improved receptacle therefore
JP4564152B2 (en) * 2000-09-28 2010-10-20 株式会社東芝 core
TW534487U (en) * 2001-02-23 2003-05-21 Hon Hai Prec Ind Co Ltd Filtering device for cable connector
US7136265B2 (en) * 2001-10-17 2006-11-14 Square D Company Load recognition and series arc detection using bandpass filter signatures
US7347373B2 (en) * 2004-07-08 2008-03-25 Scenera Technologies, Llc Method and system for utilizing a digital camera for retrieving and utilizing barcode information
US7434226B2 (en) * 2004-12-14 2008-10-07 Scenera Technologies, Llc Method and system for monitoring a workflow for an object
US20060125887A1 (en) * 2004-12-15 2006-06-15 Hwang Peter G Fluid reservoir and ink pen assembly
JP4137895B2 (en) * 2005-02-02 2008-08-20 Ｔｄｋ株式会社 Noise absorber
CN101101806A (en) * 2006-07-07 2008-01-09 富士康(昆山)电脑接插件有限公司 Cable
JP2009023298A (en) * 2007-07-23 2009-02-05 Kitagawa Ind Co Ltd Injection molded article
US8519665B2 (en) * 2009-12-04 2013-08-27 International Business Machines Corporation Adjustable EMI suppression core for common mode/normal mode balance
WO2015049176A1 (en) 2013-10-01 2015-04-09 Renishaw Plc Electronic device

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4005380A (en) * 1975-06-12 1977-01-25 Robert Bosch G.M.B.H. Clip-on inductive pulse pick-up
JPS6214770A (en) * 1985-07-10 1987-01-23 Shigeo Nishimura Laver unfolding apparatus
JPH0234875Y2 (en) * 1986-08-29 1990-09-19
JPH0537514Y2 (en) * 1987-05-29 1993-09-22
JP2509075Y2 (en) * 1988-09-26 1996-08-28 北川工業株式会社 Noise current absorber
JP2521801Y2 (en) * 1989-02-17 1997-01-08 北川工業 株式会社 Noise absorber
US5343184A (en) * 1989-05-29 1994-08-30 Kitagawa Industries Co., Ltd. Electric noise absorber
US5003278A (en) * 1990-03-01 1991-03-26 Ferrishield, Inc. Ferrite suppressor case with retaining fingers
JPH04363007A (en) * 1991-01-24 1992-12-15 Nikko Kogyo Kk Signal discriminator
US5506909A (en) * 1994-05-23 1996-04-09 Jet Man Enterprise Co., Ltd. Noise filtering device
DE19536155A1 (en) * 1995-09-29 1997-04-03 Wuerth Elektronik Gmbh & Co Kg Device for absorbing electrical noise

Also Published As

Publication number Publication date
FR2758648A1 (en) 1998-07-24
JP3487577B2 (en) 2004-01-19
GB2321559A (en) 1998-07-29
CN1188971A (en) 1998-07-29
US5764125A (en) 1998-06-09
GB2321559B (en) 2001-06-13
GB9722364D0 (en) 1997-12-17
DE19758406A1 (en) 1998-10-08
FR2758648B1 (en) 2000-09-08
DE19758406B4 (en) 2005-03-24
CN1127740C (en) 2003-11-12
CA2217567C (en) 2000-08-08
JPH11121968A (en) 1999-04-30

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed