公开(公告)号：US12122495B2

公开(公告)日：2024-10-22

申请号：US18198068

申请日：2023-05-16

Applicant: IS Engineering Design LLC

Inventor： Ian Sheard

IPC: B63G8/22 ,  B63G8/00 ,  B63G8/04 ,  B63G8/38 ,  B63H5/125

CPC classification number: B63G8/22 ,  B63G8/001 ,  B63G8/04 ,  B63G8/38 ,  B63B2211/02 ,  B63H2005/1258

Abstract: An underwater watercraft including a passenger compartment and an ingress/egress port in which the watercraft has buoyancy and center of gravity adjusted to maintain a generally level or other desired attitude when submerged, and an optionally angled attitude at a water surface for ingress/egress. The attitude is also 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 and including a riser and optionally removable or concealable handrails. The ingress-egress port has an angled orientation in a submerged mode, and an optional orientation generally parallel to the water surface or angled but above the surface in a surface mode.

公开(公告)号：US20230286629A1

公开(公告)日：2023-09-14

申请号：US18198068

申请日：2023-05-16

Applicant: IS Engineering Design LLC

Inventor： Ian Sheard

IPC: B63G8/22 ,  B63G8/00 ,  B63G8/38 ,  B63G8/04

CPC classification number: B63G8/22 ,  B63G8/001 ,  B63G8/38 ,  B63G8/04 ,  B63B2211/02 ,  B63H2005/1258

Abstract: An underwater watercraft including a passenger compartment and an ingress/egress port in which the watercraft has buoyancy and center of gravity adjusted to maintain a generally level or other desired attitude when submerged, and an optionally angled attitude at a water surface for ingress/egress. The attitude is also 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 and including a riser and optionally removable or concealable handrails. The ingress-egress port has an angled orientation in a submerged mode, and an optional orientation generally parallel to the water surface or angled but above the surface in a surface mode.

公开(公告)号：US11691706B2

公开(公告)日：2023-07-04

申请号：US17326715

申请日：2021-05-21

Applicant: IS Engineering Design LLC

Inventor： Ian Sheard

IPC: B63G8/22 ,  B63G8/00 ,  B63G8/38 ,  B63G8/04 ,  B63H5/125

CPC classification number: B63G8/22 ,  B63G8/001 ,  B63G8/04 ,  B63G8/38 ,  B63B2211/02 ,  B63H2005/1258

Abstract: An underwater watercraft including a passenger compartment and an ingress/egress port in which the watercraft has buoyancy and center of gravity adjusted to maintain a generally level or other desired attitude when submerged, and an optionally angled attitude at a water surface for ingress/egress. The attitude is also 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 and including a riser and optionally removable or concealable handrails. The ingress-egress port has an angled orientation in a submerged mode, and an optional orientation generally parallel to the water surface or angled but above the surface in a surface mode.

公开(公告)号：US20220017195A1

公开(公告)日：2022-01-20

申请号：US17326715

申请日：2021-05-21

Applicant: IS Engineering Design LLC

Inventor： Ian Sheard

IPC: B63G8/22 ,  B63G8/00 ,  B63G8/38 ,  B63G8/04

Abstract: An underwater watercraft including a passenger compartment and an ingress/egress port in which the watercraft has buoyancy and center of gravity adjusted to maintain a generally level or other desired attitude when submerged, and an optionally angled attitude at a water surface for ingress/egress. The attitude is also 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 and including a riser and optionally removable or concealable handrails. The ingress-egress port has an angled orientation in a submerged mode, and an optional orientation generally parallel to the water surface or angled but above the surface in a surface mode.