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Патент USA US2119588

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June 7, 1938.
2,119,588
N. E. LINDENBLAD
HIGH VOLTAGE GENERATOR
Original Filed Aug. 9, 1933
440
/
442”
410
mm mm 6.5 :
KfNfA’ATO/P
=
400
436——
/ 458
434
434
4/6
INVENTOR.
NlLS E. UNDENBLAD
7I
ATTORNEY.
‘2,119,588
Patented June 7, 1938
' UNITED STATES
PATENT OFFICE
2,119,588
HIGH VOLTAGE GENERATOR
Nils E. Lindenblad, Port Jefferson, Long Island,
N. Y., assignor to Radio Corporation of Ameri
ca, a corporation of Delaware
Original application August 9, 1933, Serial 1%.
684,328. Divided and this application Febru
ary 26, 1935, Serial No. 8,236
6 Claims. (Cl. 171-97)
protective grid about the cathode directly, or
This invention relates to a method and means
for generating and utilizing extremely high volt
ages at high energy levels“
4
This is a division of my copending application
5 Serial No.‘684,328, ?led August 9, 1933.
This
divisional application is speci?cally directed to a
high-voltage generating system wherein charging
devices are arranged in parallel,‘ and means be
ing provided to discharge said devices in series.
10
In one way of carrying out my invention for the
generation of high D. C. voltages, I charge metal
lic'units, preferably particles of metal, by actual
conductive contact with a D. C. source.
Then,
by moving the particles away from‘the source,
15 the voltages of the charges thereon are increased,
in a manner which shall be eirplained more fully
hereinafter, and the charges are ultimately de
posited upon a low voltage gradient-section of a
charge-storing device or container.)
,
20' In another arrangement for producing high
voltages vaccording to my present invention, an
induction electrode, either grounded, or prefer
ably maintained at a high voltage, is insulatingly
separated froni- a chargeable medium which may
25 be a solid, a liquid or a gas, and, by the use of a
point discharge electrode system connected to a
direct current source, or preferably to ground,
ionization or corona is caused to take place
through and/or about the chargeable mediuin.
through a bias source, to the cathode.
Still further objects of my present invention
are to provide an improved belt system for gen
erating high voltages; to provide an improved 5
disk system for generating high voltages; to pro
vide improved combinations of disks alone or
' combinations of disk or disks and belt or belts
alone, arranged in such a way ‘as to have an
eifective output voltage much higher than the 10
voltage generated by any one system; and to pro
vide a symmetrical network system in which var
ious elements are charged in parallel but dis
charged in series so as-to obtain a much higher
resultant output voltage as compared to the 'volt- 15
age applied to each element.
This invention will be more fully understood
by referring to the accompanying drawing, in
. which
.
Fig. 1 illustrates a symmetrical system for
charging condensers in parallel and discharging
them in series, in order to obtain a high resultant
output voltage; ‘
Fig. 2 is another modi?cation of Fig. 1;
Fig. 3 illustrates a recti?er for rectifying and
storing the pulsating voltages and energies de
veloped in the apparatus illustrated in Fig. 2.
Referring now to Fig. 1. the arrangement of this
system shows a high-voltage source 400,, which
may, for example, be any one of the sources or
Thev charged medium is then moved or carried to combination of systems described in Figs. 1 to 10
a low gradient area on a chargeable element, the of my copending application Serial No. 684,328, '
‘high voltage surface of which is brought up to an 1 ?led Aug. 9, 1933'. The high voltage source 400
exceedingly high voltage by the continued‘ de
posits from the charged medium. .
charges, through resistor 402, a balanced spark
gap system. This spark 'gap system comprises 35
' Other modi?cations of‘ my invention are that of
spark gaps 404, 406, 4'08 symmetrically intercon
the contact and induction principles for charg
ing solid mediums such as belts and disks, for
charging liquids such-as oil and 011 containing
nected by resistoror reactors and condensers 4 I 0,
ll 2, respectively. The source 400, which is either
a high voltage A. C. of relatively low frequency, or
metallic particlesin suspension and for charging , D. C. source, charges the condensers “2 through 40
gases.
»
~
My ‘invention further contemplates, in connec
tion with a cascaded transformer system, the
recti?cation of the voltage of each stage. As it is
desirable to make'the voltage of each stage as
high as possible, it ‘will be found that ordinary
tube recti?ers subjected to high A. C. voltages for
‘ recti?cation, will have their ?laments subjected
to high electrostatic streses leading to their
rapid destruction. Consequently, a further object of my present‘ invention is to provide an
improved‘tube recti?er circuit. For this purpose
I provide an arrangement wherein the cathodes
or filaments are protected from subjection to
high electrostatic forces by suitably connecting a
resistors 402, llll in parallel. However, when dis
charge of the spark gaps I“, 406, "8 occurs, the
discharge, as well known to those skilled in the
art, is of extremely rapid character and acts se
rially through the condensers ‘i2, disregarding 4.5
resistors llli as too slow means for discharge,
thus producing momentarily across the spheres
4“ an integrated voltage.
That is to say, the
charging takes place in parallel, whereas the
discharge, taking'place in series, gives a much 50
greater effective output voltage.
.
-
An arrangement somewhat similar to that
shown ‘in Fig. 1, but somewhat _more re?ned, is
illustrated in Fig. 2. as in connection with Fig.
1, the source “ll may be any one‘of the devices, I6
2,1 rates
combination of devices or systems illustrated in
' Figs. 1 to 5 of my copending application Ser. No.
684,328, filed Aug. 9, 1933. A. high voltage is fed
through a resistor M6 to the left and right-hand
symmetrical arrangements of spark gaps, con
densers and resistors. . The left-hand bank of
least a cathode and an anode, means for charging
the charging resistors 422 and charging and dis
charging condensers 424. Similarly the right-—
10 hand bank of spark gaps M6 is provided with
charging condemers 428 and charging resistors
5313. The resistor Q32 is provided to prevent the
lowermost right-hand spark gap 426 from short
circuiting the lowermost left-hand charging con-'
denser 426i. Condenser C acts as a by-pass for
impuses from either side when discharge occurs
so as to time the discharge or sparks oi’ the
25
i
l. A system for generating high voltages, com
prising a group of symmetrically arranged devices
having elongated evacuated tubes containing at
spark gaps encloses spark gaps M3, 420 having
20
Having thus described my invention, What I
claim is:
sm'd devices in parallel, and means for discharging
’ said devices in series.
2. A system for generating high voltages, com
prising a group of symmetrically arranged de
1O
vices having elongated evacuated tubes contain
ing at least a cathode and an anode, each of said
evacuated tubes having associated therewith a
storage shell, means for charging said devices in
parallel, and means for discharging said devices
in series.
left and right-hand piles of spark gaps into syn
A system for generating high voltages, com
prising a group of symmetrically arranged devices
chronism.
having elongated evacuated tubes containing at
’
‘
By way of further explanation, the arrange
ments shown in Figs, 1 and 2 operate by virtue of
the fact that the spark discharge is very fast and
does not appear to suffer from the fact that the
parallel connection through the resistors is re
least a cathode and an anode, means for charging 20
said devices in parallel, and a plurality of spheres
spaced to discharge said devices in series.
.
1i. A system for generating high voltages, com
prising a group of symmetrically arranged devices
tained during the discharge period.
having elongated evacuated tubes containing at
In order to utilize the systems of Figs. 1 and 2
for the generation of a uni-directional voltage,
least ‘a cathode and an anode, each of said evacu
the generated high ‘voltage impulses should be
shell, means for charging said devices in parallel,
and a plurality of spheres spaced to discharge said
devices in series.
30
5. A system for‘ generating high voltages, com
prising a group of symmetrically arranged de
vices having ?xed elements in the form of evacu
ated tubes containing at least an anode and cath
ode, a spherical shell surrounding at least one 35
end oi? said evacuated tubea'a plurality of re
allowed to spark over into one or more insulated
30 spheres or other form of high voltage condenser
in orderto maintain its charge. A system for do
ing this is illustrated in Fig. 3. The spheres 43d
oi? Fig. 2,, although they may of course be the
spheres Ml of Fig. 1, they are connected as
35 shownin Fig. 3, respectively to the‘ plate 436 and
filament 438 of two elongated evacuated tubes
“0, M2,whose ?lament “it and plate or anode
446 are respectively connected to the shells or
charge storing devices “6, “8. If desired, only
one tube and one shell need be used so as to get
merely ahalf wave recti?er effect.
As illustrated
ated tubes having associated therewith a storage '
sistances associated with said evacuated tubes.
means for charging said devices in parallel, and
. means for discharging said devices in series.
6. A system for generating high voltages, com 40
prising a group of symmetrically arranged devices
in Fig.3, however, shell “6 will become charged having ?xed elements in the form of evacuated
positively, whereas shell 448 will become charged ' tubes containing at least an anode and cathode,
negatively, the resultant voltage between the a spherical shell surrounding at least one end of
shells being extremely high.
said evacuated tubes, a plurality of resistances 45
Various other changes ‘will readily suggest and capacitive elements associated with said
themselves to those skilled in the art in carrying evacuated tubes, means i'or charging said devices
out the principles of my invention. Thereiore, in parallel, and means for discharging said devices
my present invention is not, to vbe considered lino
ited by the various illustrations which are given
merelytasspeci?c examples, but is to be given the
~iull scope indicated in the appended clams.
in series.
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