Pressure hull for human occupancy for manned submersibles
The acrylic pressure hull with a circular cross-section and non-uniform profile addresses occupancy and visibility issues in submersibles by enhancing ergonomics and reducing displacement, enabling multiple occupants with clear views and compact design.
Patent Information
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- DARK OCEAN LTD
- Filing Date
- 2021-05-27
- Publication Date
- 2026-07-08
AI Technical Summary
Existing manned submersibles with spherical or combined spherical/cylindrical pressure hulls face limitations in occupancy, visibility, and ergonomics, particularly for shallow and medium-depth dives, due to size constraints, manufacturing complexity, and the need for metal bands, which restrict viewing angles and comfort.
A pressure hull with a circular or near-circular cross-section and an elongated, non-uniform profile along the major axis, made from acrylic, allowing for a spheroidal shape with localized deviations to enhance viewing and ergonomics, accommodating multiple occupants with clear lines of sight without increasing height or displacement.
The solution enables comfortable accommodation of several occupants with unobstructed views, reducing manufacturing complexity and weight, while maintaining a compact footprint and low displacement, suitable for various uses including yacht storage and diverse seating arrangements.
Smart Images

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