BE518294A - - Google Patents

Info

Publication number
BE518294A
BE518294A BE518294DA BE518294A BE 518294 A BE518294 A BE 518294A BE 518294D A BE518294D A BE 518294DA BE 518294 A BE518294 A BE 518294A
Authority
BE
Belgium
Application number
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.)
Publication of BE518294A publication Critical patent/BE518294A/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general
    • H03G11/02—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general by means of diodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B7/00—Generation of oscillations using active element having a negative resistance between two of its electrodes
    • H03B7/02—Generation of oscillations using active element having a negative resistance between two of its electrodes with frequency-determining element comprising lumped inductance and capacitance
    • H03B7/06—Generation of oscillations using active element having a negative resistance between two of its electrodes with frequency-determining element comprising lumped inductance and capacitance active element being semiconductor device
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B9/00—Generation of oscillations using transit-time effects
    • H03B9/01—Generation of oscillations using transit-time effects using discharge tubes
    • H03B9/02—Generation of oscillations using transit-time effects using discharge tubes using a retarding-field tube
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/04—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only
    • H03F3/10—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only with diodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/313—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of semiconductor devices with two electrodes, one or two potential barriers, and exhibiting a negative resistance characteristic
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/45—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of non-linear magnetic or dielectric devices
    • H03K3/47—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of non-linear magnetic or dielectric devices the devices being parametrons
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/539—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium characterised by the connection of the absorbent layers with each other or with the outer layers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A61F2013/53445—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad from several sheets
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
    • A61F2013/53765—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterized by its geometry
    • A61F2013/53782—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterized by its geometry with holes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/539—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium characterised by the connection of the absorbent layers with each other or with the outer layers
    • A61F2013/5395—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium characterised by the connection of the absorbent layers with each other or with the outer layers with thermoplastic agent, i.e. softened by heat

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Ceramic Engineering (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)
  • Thyristors (AREA)
  • Rectifiers (AREA)
BE518294D 1952-03-10 BE518294A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR961176X 1952-03-10

Publications (1)

Publication Number Publication Date
BE518294A true BE518294A (fr)

Family

ID=9496098

Family Applications (2)

Application Number Title Priority Date Filing Date
BE521979D BE521979A (fr) 1952-03-10
BE518294D BE518294A (fr) 1952-03-10

Family Applications Before (1)

Application Number Title Priority Date Filing Date
BE521979D BE521979A (fr) 1952-03-10

Country Status (6)

Country Link
US (1) US2843765A (fr)
BE (2) BE518294A (fr)
DE (2) DE961176C (fr)
FR (2) FR1057036A (fr)
GB (1) GB724296A (fr)
NL (3) NL176650B (fr)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124701A (en) * 1964-03-10 Richard l
US3125685A (en) * 1964-03-17 Nonlinear sensing circuit
US2879409A (en) * 1954-09-09 1959-03-24 Arthur W Holt Diode amplifier
US3112453A (en) * 1954-09-09 1963-11-26 Arthur W Holt Diode amplifier
US3070779A (en) * 1955-09-26 1962-12-25 Ibm Apparatus utilizing minority carrier storage for signal storage, pulse reshaping, logic gating, pulse amplifying and pulse delaying
US2975377A (en) * 1956-08-07 1961-03-14 Ibm Two-terminal semiconductor high frequency oscillator
US2939966A (en) * 1956-12-20 1960-06-07 Abraham George Electrical switching circuit
US2941094A (en) * 1956-12-20 1960-06-14 Abraham George Electrical amplifying circuit
US2939965A (en) * 1956-12-20 1960-06-07 Abraham George Electrical switching circuit
US2909679A (en) * 1957-02-04 1959-10-20 Abraham George Hall effect circuit employing a steady state of charge carriers
DE1072757B (de) * 1957-05-29 1960-01-07 Hazeltine Corporation, Washington, D. C. (V. St. A.) Schaltung zur Erzeugung einer steilen Stromänderting durch einen Flächentransistor
US3040191A (en) * 1958-06-10 1962-06-19 Westinghouse Electric Corp Switching systems
US3030523A (en) * 1958-07-24 1962-04-17 Westinghouse Electric Corp Condition responsive impedance switching arrangement utilizing hyperconductive diode
US2946901A (en) * 1958-09-22 1960-07-26 Robert J Kyler Switching circuit for differentiator
NL251536A (fr) * 1959-05-13
NL253490A (fr) * 1959-07-07 1900-01-01
US3058009A (en) * 1959-07-15 1962-10-09 Shockley William Trigger circuit switching from stable operation in the negative resistance region to unstable operation
US3136975A (en) * 1959-07-20 1964-06-09 Shell Oil Co Monitoring circuit for logging instruments
US3096445A (en) * 1959-11-13 1963-07-02 Rca Corp Square wave generator compristing negative resistance diode and mismatched delay line producing steep edge pulses
US3175096A (en) * 1959-12-02 1965-03-23 Ibm Tunnel diode controlled magnetic triggers
US3092734A (en) * 1959-12-18 1963-06-04 Rca Corp Amplitude limiter for a. c. signals using a tunnel diode
US3176149A (en) * 1960-03-24 1965-03-30 Gen Electric Solid state circuit interrupter
US3185860A (en) * 1960-04-20 1965-05-25 Rca Corp Bistable device
US3087123A (en) * 1960-04-21 1963-04-23 Rca Corp Negative resistance diode multivibrators
US3143660A (en) * 1960-08-29 1964-08-04 Rca Corp Stabilized negative resistance diode circuit
US3153151A (en) * 1960-11-23 1964-10-13 Hughes Aircraft Co Transistor circuits utilizing shunt-input tunnel diode to provide positive switchingand improve rise time
GB944211A (fr) * 1961-02-28
US3188490A (en) * 1962-04-03 1965-06-08 Hunt Electronics Company Power control circuit utilizing a phase shift network for controlling the conduction time of thyratron type devices
US3262029A (en) * 1962-07-24 1966-07-19 Hughes Aircraft Co Low noise microwave diode
US3333196A (en) * 1965-06-28 1967-07-25 Abraham George Electrical switching means

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE487452C (de) * 1928-09-14 1929-12-10 Abraham Esau Dr Verfahren zur Gleichrichtung hochfrequenter Stroeme
US2418516A (en) * 1944-06-06 1947-04-08 Selenium Corp Amplifier
NL147713B (nl) * 1948-07-23 Laing & Son Ltd John Werkwijze voor het bereiden van een plastische mortel.
US2627575A (en) * 1950-02-18 1953-02-03 Bell Telephone Labor Inc Semiconductor translating device
US2666816A (en) * 1950-10-20 1954-01-19 Westinghouse Electric Corp Semiconductor amplifier
US2647995A (en) * 1950-12-07 1953-08-04 Ibm Trigger circuit
USRE24303E (en) * 1951-07-02 1957-04-16 Semi-conductor trigger circuit

Also Published As

Publication number Publication date
DE961176C (de) 1957-04-04
FR1057036A (fr) 1954-03-04
GB724296A (en) 1955-02-16
US2843765A (en) 1958-07-15
NL180489B (nl)
DE1003266B (de) 1957-02-28
NL176650B (nl)
FR63195E (fr) 1955-08-25
NL94444C (fr)
BE521979A (fr)

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