# US 9,751,599 B1 · Standup paddleboard > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,751,599 B1 - Document ID: US9751599B1 - Status: Granted - Kind: B1 - Application number: 15/096,103 - Filed: 2016-04-11 - Granted: 2017-09-05 - Earliest claimed: 2015-04-09 - Applicants: Shaine Shahin Ebrahimi - Inventors: Shaine Shahin Ebrahimi - Web page: https://patentgrep.com/patent/US9751599B1 ## CPC - B63B 32/53: Sectionalised boards, e.g. modular, dismountable or foldable boards - B63B 32/51: Inflatable boards, e.g. drop-stitch inflatable boards - B63B 32/60: Board appendages, e.g. fins, hydrofoils or centre boards - B63B: SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING (arrangements of vessel ventilation, heating, cooling, or air-conditioning B63J2/00; floating substructures as supports of dredgers or soil-shifting machines E02F9/06) ## Abstract A hull assembly is configured to transport a human user in water. The hull assembly includes a bow, having a bow concave portion. A port hull is joined to the bow. The port hull is adopted to accommodate a first foot of a human user. A starboard hull is joined to the bow and offset from the port hull by the bow concave portion. The starboard hull is adapted to accommodate a second foot of the human user. When a first port hull weight varies from a second port hull weight, the first port hull vertically deflects relative to the second port hull to increase the balance and stability of the human user and increase maneuverability of the vessel. ## Claims ### Claim 1 A hull assembly, configured to transport a human user in water, the hull assembly comprising: a bow, having a bow concave portion; wherein the bow further comprises a forward portion which is rounded on a port bow and a starboard bow while flat on a bow deck and a bow bottom side; a port hull, joined to the bow; wherein the port hull is adopted to accommodate a first foot of the human user; wherein the port hull further comprises: a port hull port side, extending from the port bow; a port hull aft side, extending the port hull port side; a port hull amidships side, extending from the port hull aft side; wherein the port hull amidships side is smoothly joined to the bow concave portion; a port hull top side; and a port hull bottom side a starboard hull, joined to the bow and offset from the port hull by the bow concave portion; wherein the starboard hull is adapted to accommodate a second foot of the human user; wherein when a first port hull weight varies from a second port hull weight, the port hull vertically deflects relative to the starboard hull. ### Claim 2 (depends on 1) The hull assembly of claim 1, further comprising: a port hull amidships handle, a port hull aft handle, a port hull fill port and a port hull deck, attached to the port hull top side; a port hull bottom side inboard fin and a port hull bottom side outboard fin, attached to the port hull bottom side. ### Claim 3 (depends on 2) The hull assembly of claim 2, wherein the starboard hull further comprises: a starboard hull starboard side, extending from the starboard bow; a starboard hull aft side, extending the starboard hull starboard side; a starboard hull amidships side, extending from the starboard hull aft side; wherein the starboard hull amidships side is smoothly joined to the bow concave portion; a starboard hull top side; and a starboard hull bottom side. ### Claim 4 (depends on 3) The hull assembly of claim 3, further comprising: a starboard hull amidships handle, a starboard hull aft handle, a starboard hull fill port and a starboard hull deck, attached to the starboard hull top side; a starboard hull bottom side inboard fin and starboard hull bottom side outboard fin, attached to the starboard hull bottom side. ### Claim 5 (depends on 4) The hull assembly of claim 4, further comprising: port hull air, filling the port hull through the port hull fill port; and starboard hull air, filling the starboard hull through the starboard hull fill port. ### Claim 6 (depends on 3) The hull assembly of claim 3, further comprising: an upper port hull grommet flap and a lower port hull grommet flap, attached to the port hull amidships side, an upper starboard hull grommet flap and a lower starboard hull grommet flap, attached to the starboard hull amidships side, an upper hull string, connected to the upper port hull grommet flap and the upper starboard hull grommet flap; and a lower hull string, connected to the lower port hull grommet flap and the lower starboard hull grommet flap wherein the upper hull string and the lower hull string operate to reduce movement of the port hull and the starboard hull. ### Claim 7 (depends on 3) The hull assembly of claim 3, further comprising: a port hull upper amidships D-ring and a port hull lower amidships D-ring, attached to the port hull; a starboard hull upper amidships D-ring and a starboard hull lower amidships D-ring, attached to the starboard hull; and a first connection member, joined to the port hull upper amidships D-ring and the starboard hull upper amidships D-ring, a second connection member, joined to the port hull lower amidships D-ring, and the starboard hull lower amidships D-ring. ### Claim 8 A hull assembly, configured to transport a human user in water, the hull assembly comprising: a bow, having a bow concave portion; wherein the bow further comprises a forward portion which is rounded on a port bow and a starboard bow while flat on a bow deck and a bow bottom side; wherein a bow forward d-ring, a bow forward port first d-ring, a bow forward port second d-ring, a bow forward starboard first d-ring, a bow forward starboard second d-ring, a bow handle, and a bow concave portion d-ring, are attached to the bow; a port hull, joined to the bow; wherein the port hull is adopted to accommodate a first foot of the human user; a starboard hull, joined to the bow and offset from the port hull by the bow concave portion; wherein the starboard hull is adapted to accommodate a second foot of the human user; wherein when a first port hull weight varies from a second port hull weight, the port hull vertically deflects relative to the starboard hull. ### Claim 9 (depends on 8) The hull assembly of claim 8 wherein the port hull further comprises: a port hull port side, extending from the port bow; a port hull aft side, extending the port hull port side; a port hull amidships side, extending from the port hull aft side; wherein the port hull amidships side is smoothly joined to the bow concave portion; a port hull top side; and a port hull bottom side. ### Claim 10 (depends on 9) The hull assembly of claim 9, further comprising: a port hull amidships handle, a port hull aft handle, a port hull fill port and a port hull deck, attached to the port hull top side; a port hull bottom side inboard fin and a port hull bottom side outboard fin, attached to the port hull bottom side. ### Claim 11 (depends on 10) The hull assembly of claim 10, wherein the starboard hull further comprises: a starboard hull starboard side, extending from the starboard bow; a starboard hull aft side, extending the starboard hull starboard side; a starboard hull amidships side, extending from the starboard hull aft side; wherein the starboard hull amidships side is smoothly joined to the bow concave portion; a starboard hull top side; and a starboard hull bottom side. ### Claim 12 (depends on 11) The hull assembly of claim 11, further comprising: a starboard hull amidships handle, a starboard hull aft handle, a starboard hull fill port and a starboard hull deck, attached to the starboard hull top side; a starboard hull bottom side inboard fin and starboard hull bottom side outboard fin, attached to the starboard hull bottom side. ### Claim 13 (depends on 12) The hull assembly of claim 12, further comprising: port hull air, filling the port hull through the port hull fill port; and starboard hull air, filling the starboard hull through the starboard hull fill port. ### Claim 14 (depends on 12) The hull assembly of claim 12, further comprising: a upper port hull grommet flap and a lower port hull grommet flap, attached to the port hull amidships side, a upper starboard hull grommet flap and a lower starboard hull grommet flap, attached to the starboard hull amidships side, a upper hull string, connected to the upper port hull grommet flap and the upper starboard hull grommet flap; and a lower hull string, connected to the lower port hull grommet flap and the lower starboard hull grommet flap wherein the upper hull string and the lower hull string operate to reduce movement of the port hull and the starboard hull. ### Claim 15 (depends on 12) The hull assembly of claim 12, further comprising: a port hull upper amidships D-ring and a port hull lower amidships D-ring, attached to the port hull; a starboard hull upper amidships D-ring and a starboard hull lower amidships D-ring, attached to the starboard hull; and a first connection member, joined to the port hull upper amidships D-ring and the starboard hull upper amidships D-ring, a second connection member, joined to the port hull lower amidships D-ring, and the starboard hull lower amidships D-ring.