name that wierd lc tank circuit ?
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name that wierd lc tank circuit ?

 
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nanotech1
Guest
Posted: Sat Feb 19, 2005 11:30 pm    Post subject: name that wierd lc tank circuit ? Reply with quote
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-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=/netahtml/srchnum.htm&r=1&f=G&l=50&s1=3,636,970.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

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Andrew Holme
Guest
Posted: Sun Feb 20, 2005 12:31 am    Post subject: Re: name that wierd lc tank circuit ? Reply with quote
nanotech1 wrote:
Quote:
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-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=/netahtml/srchnum.htm&r=1&f=G&l=50&s1=3,636,970.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

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>
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Fred Abse
Guest
Posted: Sun Feb 20, 2005 3:30 am    Post subject: Re: name that wierd lc tank circuit ? Reply with quote
On Sat, 19 Feb 2005 18:31:08 +0000, Andrew Holme wrote:

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

That's what I got, too, using pat2pdf.

--
Then there's duct tape ...
(Garrison Keillor)

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nanotech1
Guest
Posted: Sun Feb 20, 2005 4:41 am    Post subject: Re: name that wierd lc tank circuit ? Reply with quote
OOPS sorry :(

http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=/netahtml/srchnum.htm&r=1&f=G&l=50&s1=3,637,970.WKU.&OS=PN/3,637,970&RS=PN/3,637,970
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Andrew Holme
Guest
Posted: Sun Feb 20, 2005 6:10 am    Post subject: Re: name that wierd lc tank circuit ? Reply with quote
nanotech1 wrote:
Quote:
OOPS sorry :(


http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=/netahtml/srchnum.htm&r=1&f=G&l=50&s1=3,637,970.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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