There is provided an assembleable aquaboard made of fiber-reinforced plastic (FRP), including: a first plate having a first T-shaped slot on the top surface and a second T-shaped slot on the right side surface, a second plate having a third T-shaped slot on the top surface and a fourth T-shaped slot on the right side surface; a third plate having a fifth T-shaped slot on the top surface, a sixth T-shaped slot on the right side surface; a fourth plate having a seventh T-shaped slot on the top surface and an eighth T-shaped slot on the left side surface; a first T-shaped connector to connect the first and the third plates; a second T-shaped to connect the second and the fourth plates; and a first I-beam connector to connect the first plate, the second, the third plate and the fourth plate to form the assembleable aquaboard.

In a membrane type heat insulation system for a cryogenic liquefied gas carrier cargo tank and a liquefied gas fuel container, a secondary heat insulation layer comprises a plurality of panels which are stacked in multiple layers while each pair of upper and lower panels is arranged to intersect each other, whereby heat loss which may occur in the gap between the panels can be minimized and deformation due to a temperature difference can be minimized.

In a method for producing a hull wall of a fiber composite sandwich component, shaped bodies of extruded polystyrene hard foam are enveloped with an envelope of fiber composite material with fibers oriented at least bidirectionally. The enveloped shaped bodies have a shape for forming a hull wall and are placed next to each other in a vacuum injection structure on a lower cover layer of fiber composite material. An upper cover layer of fiber composite material is placed on top of the enveloped shaped bodies and the vacuum injection structure is sealed. Matrix material is introduced and distributed in the vacuum injection structure until the fiber composite material of the envelopes and of the upper and lower cover layers is impregnated completely with the matrix material. The matrix material is cured and the fiber composite sandwich component of the hull wall is removed from the vacuum injection structure.

A body board or boogie board has an elongated flotation body with raised side features or a raised skirt that wraps around the front portion and portions of both sides of the elongated flotation body and protrudes upward to cradle or support a user in a recumbent position while riding waves. The body board or boogie board also has a grab-bar for manipulating the body board or boogie board while riding waves and can include one or more attachment features for securing one or more accessories to the body board or boogie board.

A rollable mast system couplable to an undersea vehicle includes a mast made of a bi-stable composite material configured to roll onto itself in a first state and to stiffen into an elongated stable shape in a second state, and a head structure coupled to a distal end of the mast. The rollable mast system further includes a spool configured to support at least a portion of the bi-stable composite material in its first state and a roller in contact with the bi-stable composite material and configured to pay out the bi-stable composite material from the spool in a direction away from a hull of the undersea vehicle. The bi-stable composite material is in the first state as it passes from the spool to the roller, and the bi-stable composite material is in the second state after it passes the roller.

A break resistant composite stringer system for a sports board includes an elongated stringer body. An upper U channel is fibrous and includes an upper U channel right flange and an upper U channel left flange. The upper U channel right flange is vertically oriented and the upper U channel left flange is vertically oriented. An inside surface of the upper U channel is bonded to the stringer right surface, the stringer top surface, and the stringer left surface. A lower U channel is fibrous and includes a lower U channel right flange and a lower U channel left flange. The lower U channel right flange is vertically oriented and the lower U channel left flange is vertically oriented. An inside surface of the lower U channel is bonded to the stringer right surface, the stringer bottom surface, and the stringer left surface.

A preformed foundation support for a vessel gyro-stabilization system, comprises at least three of a first side support, a second side support, a third side support, and a fourth side support. The side supports define an opening for accommodating at least a portion of a vessel gyro-stabilization system, and the side supports comprise a cuttable portion for custom fitting the preformed foundation support in a vessel. The preformed foundation support structure is installed in the vessel by cutting the cuttable portion of the preformed foundation support for custom fitting the preformed foundation support to the structure support of the vessel. The preformed foundation support structure can be manufactured as a molded fiberglass structure.

A break resistant composite stringer system for a sports board includes an elongated stringer body. An upper U channel is fibrous and includes an upper U channel right flange and an upper U channel left flange. The upper U channel right flange is vertically oriented and the upper U channel left flange is vertically oriented. An inside surface of the upper U channel is bonded to the stringer right surface, the stringer top surface, and the stringer left surface. A lower U channel is fibrous and includes a lower U channel right flange and a lower U channel left flange. The lower U channel right flange is vertically oriented and the lower U channel left flange is vertically oriented. An inside surface of the lower U channel is bonded to the stringer right surface, the stringer bottom surface, and the stringer left surface.

A package delivery system includes a package delivery computing system having a server with a processor and a server storage device. Driver cell phones includes a first driver cell phone. The first driver cell phone has a driver cell phone camera, a GPS receiver and a wireless data transceiver. The GPS receiver receives a first driver GPS location and transmits it to the server. A machine readable code is affixed to a first package that corresponds to a package #1 ID, a package #1 destination latitude GPS coordinate, a package #1 destination longitude GPS coordinate, and a package #1 size unit on the server storage device. The driver cell phone is configured to read the machine readable code via the driver cell phone camera and the driver cell phone communicates with the server over a network.

There is provided an assembleable boat made of fiber-reinforced plastic (FRP) including a bottom wall assembly; a left side wall assembly; a right side wall assembly; and a front wall assembly. the bottom wall assembly, the back wall assembly, the left side wall assembly, the right wall assembly, and the front wall assembly are mechanically connected to form the assembleable boat; and each of the bottom wall assembly, the left side wall assembly, the right wall assembly, and the front wall assembly is made of FRP.