I used sink plungers in toilets pretty much my whole life until i scrolled across a similar diagram one day and discovered the truth.

  • Varyk@sh.itjust.worksOP
    link
    fedilink
    arrow-up
    2
    arrow-down
    1
    ·
    edit-2
    3 months ago

    Yup, started with the cup and derived into the flange.

    Thanks for linking the US patent!