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Toyota's transmission patents (reply for dennis)

Discussion in 'Gen 2 Prius Accessories & Modifications' started by zackkahry, Jun 14, 2006.

  1. zackkahry

    zackkahry New Member

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    those are cute, check these out:

    5558595
    5558589
    5558588

    those took me ~3 seconds to find, all of them are transmissions using planetary gear assemblies, owned by GM, issued before toyotas.
     
    #1 zackkahry, Jun 14, 2006
  2. zackkahry

    zackkahry New Member

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    5935035
    5730676
    3623568 < nissan
    3861484< 1972, private

    Let me know if you have any questions ;)
     
    #2 zackkahry, Jun 14, 2006
  3. brandon

    brandon Member

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    I'm confused. Is this in response to another thread somewhere else? Why not just post to the original thread?
     
    #3 brandon, Jun 14, 2006
  4. zackkahry

    zackkahry New Member

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    <div class='quotetop'>QUOTE(brandon @ Jun 14 2006, 03:28 PM) [snapback]271283[/snapback]</div>
    it got locked because some of you guys cant handle the truth.
     
    #4 zackkahry, Jun 14, 2006
  5. efusco

    efusco Moderator Emeritus
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    The original thread was closed. I''m allowing this one as long as it can stay on topic and not get hostile.
     
    #5 efusco, Jun 14, 2006
  6. brandon

    brandon Member

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    <div class='quotetop'>QUOTE(You're nuts @ Jun 14 2006, 02:31 PM) [snapback]271285[/snapback]</div>
    :lol: lol!

    I love it when people can't take a hint.
     
    #6 brandon, Jun 14, 2006
  7. Jonnycat26

    Jonnycat26 New Member

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    <div class='quotetop'>QUOTE(You're nuts @ Jun 14 2006, 02:42 PM) [snapback]271253[/snapback]</div>
    It's one of those obscure automotive facts, but GM did mass produce a planetary gear automatic transmission for many, many years starting in the late 30s.

    http://en.wikipedia.org/wiki/Hydra-Matic
     
    #7 Jonnycat26, Jun 14, 2006
  8. efusco

    efusco Moderator Emeritus
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    Good God people. Play nice or don't play.
    No one claimed that Planetary gears/systems were "invented" by Toyota. Planetary gears have been around for a very long time for various uses.

    However, noone used one in quite the same ingenious way that Toyota has in the HSD. It's in the implementation.
     
    #8 efusco, Jun 14, 2006
  9. ceric

    ceric New Member

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    My understanding of US patent system is that it is very messed up.
    The reviewers are NOT doing their due diligent. The inventors are
    not responsible for filing somethings that prior art exists (no penalty). Basically,
    a US patent does not mean much. By granting you a patent, the US govenment
    does not endorse your invention. It just means you have passed the
    process of official review. It is up to the court (after tons of money spent)
    to decision who has the ultimate right of the invention. :(

    P.S.
    I personally own 5 US patents, 2 pending. I have dealt with more than
    5 patent attorneys.
     
    #9 ceric, Jun 14, 2006
  10. usbseawolf2000

    usbseawolf2000 HSD PhD

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    <div class='quotetop'>QUOTE(You're nuts @ Jun 14 2006, 02:42 PM) [snapback]271253[/snapback]</div>
    Automatic transmission use multiple planetary gearsets. HSD use just one as a Power Split Device and interconnected ICE and two electric motors. So, the whole hybrid powertrain becomes the transmission eCVT. The patents I posted before described the operations in detail. If you want to learn more about PSD, I have a couple of great links.

    http://www.ecrostech.com/prius/original/Un...ng/Contents.htm (Click on the Power Split Device link from there.)

    How Toyota hybrid is different (hybrid of hybrids) from other type of hybrids.
    http://www.toyota.co.jp/en/tech/environment/ths2/what.html

    Dennis
     
    #10 usbseawolf2000, Jun 15, 2006
  11. zackkahry

    zackkahry New Member

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    <div class='quotetop'>QUOTE(ceric @ Jun 14 2006, 04:11 PM) [snapback]271316[/snapback]</div>

    this is a fairly accurate assessment. In a class with crowded art, any minor change can get you a patent. I often times find myself getting frustrated at them because they are so incompetent that it truely is a waste of time. I'm sure you have heard of companies getting patents, and then losing patent infringement suits (such as amazon.coms 1 click shopping) this really shouldnt be happening, as the USPTO should be doing their jobs instead of just sending everything through.
     
    #11 zackkahry, Jun 15, 2006
  12. jdjeep98

    jdjeep98 New Member

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    FYI, the Model T used a dual planetary transmission. B) :rolleyes: :lol:

    There was no clutch or fluid coupling. Each planetary had a band around the ring gear, which was tightened by pressing a pedal. There were two pedals, in the now-normal brake and clutch positions. For an emergency stop, you just pressed both as hard as you could and hauled like hell on the brake lever. :blink:
     
    #12 jdjeep98, Jun 19, 2006
  13. GasGuzzler87

    GasGuzzler87 New Member

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    I prefer my manual gearbox. Cool that you guys got a mass pateneted gearbox though.
     
    #13 GasGuzzler87, Jun 19, 2006
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