An underwater watercraft including a passenger compartment (20) and an ingress / egress port (50) in which the watercraft has buoyancy and center of gravity adjusted to maintain a generally level or other desired attitude when submerged, and an angled attitude at a water surface for ingress / egress. The attitude also is adjustable via the placement of ballast and optionally including a movable ballast that adjusts the location of the center of gravity as desired. The ingress-egress port optionally includes an entry elevated from a main passenger compartment, that has an angled orientation in a submerged mode, and an optional orientation generally parallel to the water surface in a surface mode.


    Access

    Download


    Export, share and cite



    Title :

    UNDERWATER WATERCRAFT


    Additional title:

    UNTERWASSERFAHRZEUG
    EMBARCATION SOUS-MARINE


    Contributors:
    SHEARD IAN (author)

    Publication date :

    2022-11-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B63G OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS , Angriffs- oder Verteidigungsanordnungen auf Schiffen



    UNDERWATER WATERCRAFT

    SHEARD IAN | European Patent Office | 2021

    Free access

    UNDERWATER WATERCRAFT

    SHEARD IAN | European Patent Office | 2018

    Free access

    Underwater watercraft

    SHEARD IAN | European Patent Office | 2021

    Free access

    UNDERWATER WATERCRAFT

    SHEARD IAN | European Patent Office | 2023

    Free access

    UNDERWATER WATERCRAFT

    SHEARD IAN | European Patent Office | 2022

    Free access