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name that wierd lc tank circuit ?

Discussion in 'Electronic Basics' started by nanotech1, Feb 19, 2005.

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  1. nanotech1

    nanotech1 Guest

    does any one in this group know is

    here it is the best typed description i can give of it

    http://patft.uspto.gov/netacgi/nph-...,636,970.WKU.&OS=PN/3,636,970&RS=PN/3,636,970

    you need a TIFF reader to look a it

    this is the patent describing the device it is for induction heating drived
    by an fast speed SCR

    and a lc tank circuit number 14 in the patent file

    in the tank circuit there is one induction coil of big value connected in
    parallel to a capacitor and one induction coil of smaller value in serie on
    the other side, that resonating tank is one side of it is conected in serie
    between a pulse SCR switching circuit an the other goes to a ground

    i have been searching on the net to seek info on this type of resonant tank
    circuit but i dont have the proper nomination to
    help my search

    any help appreciated
     
  2. Andrew Holme

    Andrew Holme Guest

    Are you sure you have the correct patent number there? US Patent 3,636,970
    appears to be for fluid flow regulator valve.

    BTW You can download the TIFF without the browser plugin by finding the
    <embed> tag in the HTML source, creating your own HTML fragment like this,
    and using SaveTargetAs :

    <a
    href="http://patimg2.uspto.gov//.DImg?Docid=US003636970&PageNum=1&IDKey=B90B
    F19E66DD&ImgFormat=tif">Page 1</a>
    <a
    href="http://patimg2.uspto.gov//.DImg?Docid=US003636970&PageNum=2&IDKey=B90B
    F19E66DD&ImgFormat=tif">Page 2</a>
    <a
    href="http://patimg2.uspto.gov//.DImg?Docid=US003636970&PageNum=3&IDKey=B90B
    F19E66DD&ImgFormat=tif">Page 3</a>
    <a
    href="http://patimg2.uspto.gov//.DImg?Docid=US003636970&PageNum=4&IDKey=B90B
    F19E66DD&ImgFormat=tif">Page 4</a>
     
  3. Fred Abse

    Fred Abse Guest

    That's what I got, too, using pat2pdf.
     
  4. Andrew Holme

    Andrew Holme Guest

    http://patft.uspto.gov/netacgi/nph-...,637,970.WKU.&OS=PN/3,637,970&RS=PN/3,637,970

    The large coil 30 is an RF choke to provide DC bias.

    The capacitor 32 and the smaller "work" coil 34 form a series resonant
    circuit.


    Updated links:

    <a
    href="http://patimg2.uspto.gov/.DImg?Docid=US003637970&PageNum=1&IDKey=BB8B2
    7E366DE&ImgFormat=tif">Page 1</a>
    <a
    href="http://patimg2.uspto.gov/.DImg?Docid=US003637970&PageNum=2&IDKey=BB8B2
    7E366DE&ImgFormat=tif">Page 2</a>
    <a
    href="http://patimg2.uspto.gov/.DImg?Docid=US003637970&PageNum=3&IDKey=BB8B2
    7E366DE&ImgFormat=tif">Page 3</a>
    <a
    href="http://patimg2.uspto.gov/.DImg?Docid=US003637970&PageNum=4&IDKey=BB8B2
    7E366DE&ImgFormat=tif">Page 4</a>
    <a
    href="http://patimg2.uspto.gov/.DImg?Docid=US003637970&PageNum=5&IDKey=BB8B2
    7E366DE&ImgFormat=tif">Page 5</a>
    <a
    href="http://patimg2.uspto.gov/.DImg?Docid=US003637970&PageNum=6&IDKey=BB8B2
    7E366DE&ImgFormat=tif">Page 6</a>
    <a
    href="http://patimg2.uspto.gov/.DImg?Docid=US003637970&PageNum=7&IDKey=BB8B2
    7E366DE&ImgFormat=tif">Page 7</a>
    <a
    href="http://patimg2.uspto.gov/.DImg?Docid=US003637970&PageNum=8&IDKey=BB8B2
    7E366DE&ImgFormat=tif">Page 8</a>
     
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