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  #1  
Old 05-16-2017, 08:34 PM
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Some interesting patents...

A thread in the Early Color Forum got me to finally put together a list of patent "finds" that I had on an older Win Vista machine. Here's some interesting TV related patents:

Handwired Chassis: http://www.freepatentsonline.com/3337950.pdf
Space Command Remote Clickers: http://www.freepatentsonline.com/2821955.pdf http://www.freepatentsonline.com/3118423.pdf
Clutched Fine Tuning in Zeniths: http://www.freepatentsonline.com/3148345.pdf
Duramodule patent: http://www.freepatentsonline.com/3492537.pdf
System 3 patent: http://www.freepatentsonline.com/4048669.pdf
The beginings of Zoom: http://www.freepatentsonline.com/2586521.pdf
Zoom, matured: http://www.freepatentsonline.com/4028726.pdf
4-lead safety capacitor: http://www.freepatentsonline.com/3883779.pdf
Tripler with focus divider: http://www.freepatentsonline.com/3814989.pdf

How those funky yoke windings were formed: http://www.freepatentsonline.com/3086562.pdf
Electrically extended car radio antenna: http://www.freepatentsonline.com/2391202.pdf
Zenith Phono Cartridge and dual needle assembly: http://www.freepatentsonline.com/3582087.pdf
Zenith Allegro "Mixer board" Stereo: http://www.freepatentsonline.com/D244961.pdf

GE's funky slide knobs: http://www.freepatentsonline.com/3617077.pdf

Motorola's Works-in-the-Drawer patent: http://www.freepatentsonline.com/3708618.pdf
Motorola's innovative tripler: http://www.freepatentsonline.com/3748538.pdf

RCA Mirrored Lid set: http://www.freepatentsonline.com/2207510.pdf

RCA's Solid State Oscilloscope, ahead of it's time: http://www.freepatentsonline.com/4114095.pdf
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  #2  
Old 05-16-2017, 11:33 PM
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Jon A. Jon A. is offline
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Neat, and I took apart a four-lead cap just a couple of days ago trying to see how it works. It was poorly installed and I have two NOS units of the same value so why not. I got photos of the mangled end of a very tightly-wound roll of foil and plastic film. I also took apart a 2-leader for comparison. I assume the narrower pair of strips is the interlock.

Hard to see details I know, so here are the full-res pics for anyone interested.

https://www.flickr.com/photos/spacec...7683846157245/
https://www.flickr.com/photos/spacec...7683846157245/

Last edited by Jon A.; 05-17-2017 at 04:33 AM.
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  #3  
Old 05-17-2017, 05:59 AM
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More Space Command remotes:
The genesis: http://www.freepatentsonline.com/2821956.pdf
http://www.freepatentsonline.com/3017849.pdf
http://www.freepatentsonline.com/2920604.pdf
http://www.freepatentsonline.com/3164127.pdf
http://www.freepatentsonline.com/3327679.pdf

RCA Ultrasonic Remote Clicker: http://www.freepatentsonline.com/3028830.pdf
http://www.freepatentsonline.com/3165090.pdf
http://www.freepatentsonline.com/3028832.pdf

Motorola ultrasonic remote: http://www.freepatentsonline.com/3189000.pdf

UHF Loop Antenna? A Zenith creation: http://www.freepatentsonline.com/3233240.pdf

Panasonic "freeze" set: http://www.freepatentsonline.com/3908083.pdf
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Old 05-17-2017, 07:22 AM
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Tnx findm interesting stuff. Another Zenith one was the spark
gaps used in late CC2 & up. It actually worked !
We found sets hit by lightning where it was melted & blackened
but the sets kept running. Only found out when the set was
opened for other unrelated problems.

Lightning work used to be gravy work. Only had one Admiral
destroyed by a direct antenna hit. It blew a PCB to shreds.
When cable TV came along it became the great destroyer of
TV sets. The ground for the cable completed a circuit that common
power line hits could use to send a huge surge through everything.

73 Zeno
LFOD !
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  #5  
Old 05-17-2017, 03:38 PM
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CRT Socket with Integral Spark Gap: http://www.freepatentsonline.com/4075531.pdf
http://www.freepatentsonline.com/4298815.pdf

Overvoltage protection for Television Receiver: http://www.freepatentsonline.com/4375661.pdf

Cable isolator with overvoltage protection: http://www.freepatentsonline.com/4575691.pdf

Spark gap for line transient protection: http://www.freepatentsonline.com/4438365.pdf

TELEVISION DISPLAY PANEL HAVING GAS DISCHARGE CATHODO-LUMINESCENT ELEMENTS (Plasma TV...in 1974!): http://www.freepatentsonline.com/3845241.pdf

Avanti Cabinet?? : http://www.freepatentsonline.com/D229443.pdf

RCA 2000??: http://www.freepatentsonline.com/D219886.pdf
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  #6  
Old 05-18-2017, 06:19 AM
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Philco!

Predicta CRT case: http://www.freepatentsonline.com/D186629.pdf
Funky Philco Portable: http://www.freepatentsonline.com/2872677.pdf
Same Antenna, different cabinet Philco: http://www.freepatentsonline.com/2917577.pdf
Safari: http://www.freepatentsonline.com/3041496.pdf

And that what-were-they-thinking set:
Sharp All-in-One TV/Microwave/Cassette: http://www.freepatentsonline.com/D273836.pdf
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"Capacitor Cosmetologist since '79"

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  #7  
Old 05-18-2017, 08:41 AM
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Quote:
Originally Posted by Findm-Keepm View Post

And that what-were-they-thinking set:
Sharp All-in-One TV/Microwave/Cassette: http://www.freepatentsonline.com/D273836.pdf
What they were thinking: "I want to see both definitions of the phrase "TV-Dinner" at the same time."
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Zenith: The quality stays in EVEN after the name falls off!
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  #8  
Old 05-18-2017, 04:02 PM
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Original 6BK4A patent: http://www.freepatentsonline.com/3041494.pdf
RCA RGB-capable Flat display, circa 1962...: http://www.freepatentsonline.com/3041490.pdf

Cool IBM nixie tube: http://www.freepatentsonline.com/3041491.pdf
Yet another Nixie: http://www.freepatentsonline.com/2769939.pdf
Double sided Nixie tube: http://www.freepatentsonline.com/2618697.pdf

Siemens One-gun Color CRT: http://www.freepatentsonline.com/3041489.pdf

Those really bad powerline antennas - recalled by CPSC: http://www.freepatentsonline.com/D212849.pdf

Winegard's "mother of all antennas" windtrap: http://www.freepatentsonline.com/3531805.pdf

JFD's metal cabinet rod antenna: http://www.freepatentsonline.com/3241149.pdf

Motorola Antenna - the VT-71 makes a cameo: http://www.freepatentsonline.com/2582159.pdf
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