Patents involving antenna and aerials, mainly for transmitting...

[the_big_m_in_ok]

#4,210,884
Helical "Bandpass Filter" that can be modified to receive signals by varying the lengths of the coils and taking out the Faraday cage in the original invention and then adding more coils:

http://www.google.com/patents?id=BV43AAAAEBAJ&printsec=abstract&zoom=4#v=onepage&q=&f=false





#3,952,310
Pyramid-shaped aerial:

http://www.google.com/patents?id=Ijc1AAAAEBAJ&printsec=abstract&zoom=4#v=onepage&q=&f=false





#3,611,399
This one is also like #1,001,228 below:

http://www.google.com/patents?id=6kcBAAAAEBAJ&pg=PP2&dq=loop+array&as_drrb_ap=q&as_minm_ap=0&as_miny_ap=&as_maxm_ap=0&as_maxy_ap=&as_drrb_is=q&as_minm_is=0&as_miny_is=&as_maxm_is=0&as_maxy_is=&num=100&source=gbs_selected_pages&cad=2#v=onepage&q=&f=false





#1,762,775
Specially wound bifilar transformer:

http://www.google.com/patents?id=9794AAAAEBAJ&pg=PA1&dq=patent:1575552&as_drrb_ap=q&as_minm_ap=0&as_miny_ap=&as_maxm_ap=0&as_maxy_ap=&as_drrb_is=q&as_minm_is=0&as_miny_is=&as_maxm_is=0&as_maxy_is=&source=gbs_selected_pages&cad=2#v=onepage&q=&f=false





#1,682,874
Counter-wound bifilar coils between 2 vacuum tubes:

http://www.google.com/patents?id=KNV5AAAAEBAJ&pg=PA1&dq=patent:1575552&as_drrb_ap=q&as_minm_ap=0&as_miny_ap=&as_maxm_ap=0&as_maxy_ap=&as_drrb_is=q&as_minm_is=0&as_miny_is=&as_maxm_is=0&as_maxy_is=&source=gbs_selected_pages&cad=2#v=onepage&q=&f=false





#1,214,591
This one looks like my former Earth Battery System and Marconi's radiotelephony antenna:

http://www.google.com/patents?id=_kcTAAAAEBAJ&pg=PA1&dq=loop+array&as_drrb_ap=q&as_minm_ap=0&as_miny_ap=&as_maxm_ap=0&as_maxy_ap=&as_drrb_is=q&as_minm_is=0&as_miny_is=&as_maxm_is=0&as_maxy_is=&num=100&source=gbs_selected_pages&cad=2#v=onepage&q=&f=false





#1,001,228
This one uses a plated material like Tesla's plate radiant receiver:

http://www.google.com/patents?id=ztRRAAAAEBAJ&pg=PA1&dq=loop+array&as_drrb_ap=q&as_minm_ap=0&as_miny_ap=&as_maxm_ap=0&as_maxy_ap=&as_drrb_is=q&as_minm_is=0&as_miny_is=&as_maxm_is=0&as_maxy_is=&num=100&source=gbs_selected_pages&cad=2#v=onepage&q=&f=false

--Lee

[the_big_m_in_ok]

#5,329,287
A coil antenna with turns that vary in depth vertically, for broadband reception:

http://www.google.com/patents?id=os8mAAAAEBAJ&printsec=abstract&zoom=4#v=onepage&q=&f=false





#4,626,862
Coax antenna bent into a coiled rectangle(Fig. 8 ):

http://www.google.com/patents?id=9Eg7AAAAEBAJ&printsec=abstract&zoom=4#v=onepage&q=&f=false





#2,787,788
Jeanna and others as well might find Fig. 9 useful.  It has to do with large patio-cover-shaped overhangs that aren't grounded:

http://www.google.com/patents?id=ufprAAAAEBAJ&pg=PA1&dq=loop+aerial+antenna&num=100&source=gbs_selected_pages&cad=2#v=onepage&q=loop%20aerial%20antenna&f=false





#2,408,041
Unusual radio direction finder with triangular-shaped antennae:

http://www.google.com/patents?id=aq5RAAAAEBAJ&pg=PA1&dq=aerial+loop+antenna&as_drrb_ap=q&as_minm_ap=0&as_miny_ap=&as_maxm_ap=0&as_maxy_ap=&as_drrb_is=q&as_minm_is=0&as_miny_is=&as_maxm_is=0&as_maxy_is=&num=50&source=gbs_selected_pages&cad=1#v=onepage&q=aerial%20loop%20antenna&f=false





#2,320,521
A radio beacon with dual incoming/outgoing aerials and air core tuners in several configurations; some are unusual:

http://www.google.com/patents?id=8SlRAAAAEBAJ&pg=PA1&dq=aerial+loop+antenna&as_drrb_ap=q&as_minm_ap=0&as_miny_ap=&as_maxm_ap=0&as_maxy_ap=&as_drrb_is=q&as_minm_is=0&as_miny_is=&as_maxm_is=0&as_maxy_is=&num=50&source=gbs_selected_pages&cad=1#v=onepage&q=aerial%20loop%20antenna&f=false





#2,280,461
Static eliminator for a radiotelegraphy system.  The key can be replaced with a spark gap, which it is anyway.  The battery can go to ground with a diode and capacitor:

http://www.google.com/patents?id=0eJjAAAAEBAJ&pg=PA1&dq=aerial+loop+antenna&as_drrb_ap=q&as_minm_ap=0&as_miny_ap=&as_maxm_ap=0&as_maxy_ap=&as_drrb_is=q&as_minm_is=0&as_miny_is=&as_maxm_is=0&as_maxy_is=&num=50&source=gbs_selected_pages&cad=2#v=onepage&q=aerial%20loop%20antenna&f=false





#2,240,772
This one 'heats conductors' to melt ice on power lines, but the power mains can be replaced with lengthy conductors, the DC current source can be replaced by a chargeable battery and the transformer windings could be counter-wound like a square toroid on the transformer frame:

http://www.google.com/patents?id=w41DAAAAEBAJ&pg=PA1&dq=aerial+loop+antenna&as_drrb_ap=q&as_minm_ap=0&as_miny_ap=&as_maxm_ap=0&as_maxy_ap=&as_drrb_is=q&as_minm_is=0&as_miny_is=&as_maxm_is=0&as_maxy_is=&num=50&source=gbs_selected_pages&cad=2#v=onepage&q=&f=false





#1,879,978
This one is a bandpass filter to receive radio signals and filter out 50-60 Hz line hum as well.  Should work well away from power lines:

http://www.google.com/patents?id=aq5RAAAAEBAJ&pg=PA1&dq=aerial+loop+antenna&as_drrb_ap=q&as_minm_ap=0&as_miny_ap=&as_maxm_ap=0&as_maxy_ap=&as_drrb_is=q&as_minm_is=0&as_miny_is=&as_maxm_is=0&as_maxy_is=&num=50&source=gbs_selected_pages&cad=1#v=onepage&q=aerial%20loop%20antenna&f=false





#979,144
Radiotelephone transceiver from 1910; with a multi-wire, radiating aerial, rather like Marconi's:

http://www.google.com/patents?id=krZQAAAAEBAJ&pg=PA1&dq=aerial+loop+antenna&as_drrb_ap=q&as_minm_ap=0&as_miny_ap=&as_maxm_ap=0&as_maxy_ap=&as_drrb_is=q&as_minm_is=0&as_miny_is=&as_maxm_is=0&as_maxy_is=&num=50&source=gbs_selected_pages&cad=1#v=onepage&q=aerial%20loop%20antenna&f=false

--Lee

[the_big_m_in_ok]

Third index list, in numerical order, for reference;(138 total):
#7,235,945 (Reply #27 on the Where's Van De Graff On This Board thread)
#7,053,576
#6,974,110
#6,512,549
#6,463,875                           
#6,147,655
#5,969,527                               
#5,914,692                               
#5,841,407                           
#5,835,066                               
#5,805,114
                               
#5,734,353
#5,554,181                               
#5,404,117
#5,329,287
#5,314,444
#5,185,434                               
#5,159,332                               
#5,065,099                               
#4,922,261
#4,817,612                               

#4,804,965
#4,751,515
#4,701,764
#4,633,250                                     
#4,628,299
#4,626,862
#4,622,558
#4,613,841
#4,473,811
#4,473,163

#4,407,000
#4,396,920
#4,339,718
#4,262,560
#4,260,914
#4,210,884
#4,140,392
#4,135,184
#4,028,704
#4,008,478

#3,952,310
#3,931,577
#3,721,989
#3,716,861
#3,706,025
#3,671,970
#3,619,673
#3,611,399
#3,594,479
#3,568,205

#3,534,372
#3,530,430
#3,500,373
#3,495,264
#3,419,873
#3,267,476
#2,957,103
#2,955,223
#2,856,605
#2,813,242

#2,787,788
#2,755,469
#2,584,314
#2,581,348
#2,579,518
#2,538,405
#2,537,191
#2,510,162
#2,508,648
#2,503,010

#2,492,767
#2,408,041
#2,373,206
#2,335,163
#2,280,461
#2,320,521
#2,286,123
#2,240,772
#2,229,865
#2,153,975

#2,145,024
#2,143,437
#2,135,234
#2,066,690
#2,062,846
#1,879,978
#1,869,192
#1,683,741
#1,813,143
#1,792,964

#1,762,775
#1,775,880
#1,743,124
#1,740,851
#1,740,370
#1,739,941
#1,724,246
#1,682,874
#1,640,534
#1,602,085

#1,575,824
#1,575,552
#1,555,345
#1,538,466
#1,504,303
#1,481,585
#1,373,612
#1,350,100
#1,322,622

#1,315,862
#1,303,730
#1,303,729
#1,295,245
#1,224,499
#1,220,005
#1,214,591
#1,184,376
#1,127,921
#1,101,914

#1,101,533
#1,101,175
#1,081,221
#1,014,719
#1,001,228
#984,762
#979,144
#978,607
#978,606
#928,371

#917,103
#911,260
#847,008
#795,762
#674,427
#619,760
#287,973
RE26,196

--Lee
[/quote]

[the_big_m_in_ok]

#6,069,564
Fig. 6A has a flat, triangular coil mounted on top of 3 flat, square coils, all are paralleled in the invention.  They can be wired in series:

http://www.google.com/patents?id=V-MDAAAAEBAJ&printsec=abstract&zoom=4#v=onepage&q=&f=false





#5,835,067
This one is ideal for free standing towers, if one has the room for it.  Designed---at least---for transmitting with an 50 ohm input at the base:

http://www.google.com/patents?id=OQsYAAAAEBAJ&printsec=abstract&zoom=4#v=onepage&q=&f=false





#3,984,839
Fig. 5 has a four post mounted set of VLF receiving antennae:

http://www.google.com/patents?id=abJ8AAAAEBAJ&printsec=abstract&zoom=4#v=onepage&q=&f=false





#3,521,169
This system is expandable, as are a majority of these patents:

http://www.google.com/patents?id=WhQMAAAAEBAJ&pg=PA5&dq=VLF+antenna+coil&num=100&source=gbs_selected_pages&cad=2#v=onepage&q=&f=false




#3,249,858
Oil well borehole means of measurment having an unusual Caduceus coil mounted on it:

http://www.google.com/patents?id=jAhyAAAAEBAJ&pg=PA1&dq=ElF+antenna&as_drrb_ap=q&as_minm_ap=0&as_miny_ap=&as_maxm_ap=0&as_maxy_ap=&as_drrb_is=q&as_minm_is=0&as_miny_is=&as_maxm_is=0&as_maxy_is=&num=100&source=gbs_selected_pages&cad=2#v=onepage&q=&f=false





#2,315,170
A dipole, with tunable circuit attached:

http://www.google.com/patents?id=JDFwAAAAEBAJ&pg=PA1&dq=VLF+antenna+coil&num=100&source=gbs_selected_pages&cad=2#v=onepage&q=&f=false





#2,111,743
This appears to be an old receiving system.  Has math to configure the system as to particular components:

http://www.google.com/patents?id=Wb9dAAAAEBAJ&pg=PA1&dq=VLF+antenna+coil&num=100&source=gbs_selected_pages&cad=2#v=onepage&q=&f=false





#1,618,017
Radiotelegraphy receiver.  Has math figured in the decsriptive text for how the system works.  Rarely seen, even in these old patents.  Unusual variable transformers that had tilted coils up to 90 degs. to tune the system:

http://www.google.com/patents?id=j_VJAAAAEBAJ&pg=PA1&dq=ELF+antenna&num=100&source=gbs_selected_pages&cad=1#v=onepage&q=ELF%20antenna&f=false

--Lee

[the_big_m_in_ok]

#5,995,065
Figs. !a & 1c are most relevant.  A spiral air coil with a center wire, designed for a handheld transceiver:

http://www.go ogle.com/patents?id=z2casaba&printsec=abstract&zoom=4#v=onepage&q=&f=false





#4,007,461
A two-element system that might have the inputs combined and go to a battery:

http://www.google.com/patents?id=1dg1AAAAEBAJ&printsec=abstract&zoom=4#v=onepage&q=&f=false





#3,372,395
Shades of a Tesla coil redo:

http://www.go ogle.com/patents?id=&pg=PA1&Sq=VLF+antenna&as_drab_AP=q&as_minim_AP=0&as_Minny_AP=&as_Maxim_AP=0&as_Maxy_AP=&as_drab_is=q&as_minim_is=0&as_Minny_is=&as_Maxim_is=0&as_Maxy_is=&numb=100&source=gabs_selected_pages&cad=2#v=onepage&q=VLF%20antenna&f=false





#3,226,724
A multiplex system that can combine 4 or more antennae having various lengths and aerial positions:

http://www.google.com/patents?id=aFRPAAAAEBAJ&pg=PA1&dq=antenna+vLF+loop&num=100&source=gbs_selected_pages&cad=2#v=onepage&q=&f=false





#2,894,124
This one can be enlarged to any convenient extent:

http://www.go ogle.com/patents?id=Zwieback&pg=PA1&Sq=VLF+antenna&as_drab_AP=q&as_minim_AP=0&as_Minny_AP=&as_Maxim_AP=0&as_Maxy_AP=&as_drab_is=q&as_minim_is=0&as_Minny_is=&as_Maxim_is=0&as_Maxy_is=&numb=100&source=gabs_selected_pages&cad=2#v=onepage&q=&f=false





#1,014,719
Here's one for those atmospheric baloon suspended grid pundits and buffs:

http://www.google.com/patents?id=5rNAAAAAEBAJ&pg=PA1&dq=patent:28793&as_drrb_ap=q&as_minm_ap=0&as_miny_ap=&as_maxm_ap=0&as_maxy_ap=&as_drrb_is=q&as_minm_is=0&as_miny_is=&as_maxm_is=0&as_maxy_is=&source=gbs_selected_pages&cad=2#v=onepage&q=&f=false

--Lee