An impact absorbing device includes a waterproof outer sleeve and a core assembly disposed within the outer sleeve. The core assembly includes a bendable structural element encased in foam.

According to various embodiments, an apparatus includes an adhesive layer disposed on a first side of a porous layer. A plurality of bound wire mesh layers are attached to a second side of the porous layer. One or more pores of the porous layer correspond to one or more air gaps between the bound wire mesh layers and the porous layer. The apparatus further includes a characteristic of a presence of an extent of surface tension at (or throughout) the bound wire mesh layers. Each of the one or more air gaps further corresponds to one or more opening portions of a wire strand layer(s) in the bound wire strand layers. Other embodiments are directed to a method to configure the apparatus.

An inflation-based antifouling system and method that include an inflatable film configured to be disposed on a target clean surface; and an inflation device that inflates the inflatable film such that bio-fouling is removed from the target clean surface.

The instant invention describes an anti-biofouling structure for placement onto structures or surfaces that are exposed to aquatic environments. Embedded within the anti-biofouling structure are agents that can diffuse out of the structure and prevent the formation and/or accumulation of plant and animal species build-up that creates biofouling. The instant invention also describes a system for preventing biofouling of an object stored in an aquatic environment which includes the anti-biofouling structure, and a protective cover element constructed and arranged to fit various structures, such as boat propellers.

Disclosed are devices, methods and/or systems for use in protecting items and/or structures that are exposed to, submerged and/or partially submerged in aquatic environments from contamination and/or fouling due to the incursion and/or colonization by specific types and/or kinds of biologic organisms and/or plants, including the protection from micro- and/or macro-fouling for extended periods of time of exposure to aquatic environments.

The instant invention describes an anti-biofouling structure for placement onto structures or surfaces that are exposed to aquatic environments. Embedded within the anti-biofouling structure are agents that can diffuse out of the structure and prevent the formation and/or accumulation of plant and animal species build-up that creates biofouling. The instant invention also describes a system for preventing biofouling of an object stored in an aquatic environment which includes the anti-biofouling structure and a protective cover element constructed and arranged to fit various structures, such as boat propellers.

An electric current supply system (20) is designed to be at least partially submerged in an electrically conductive liquid during operation thereof, and having at least one electrically conductive component (21, 22, 23, 24) enveloped in liquid-tight material (40). The component (21, 22, 23, 24) has a sacrificial material that is capable of reacting electrochemically with the liquid. Further, the component (21, 22, 23, 24) has at least one gas trap portion (50) at which the sacrificial material occupies a space in the liquid-tight material (40) that is thereby defined with a gas trapping shape. If, in case of damage to the system (20) in an actual submerged state thereof, the component (21, 22, 23, 24) gets exposed to the liquid, it is achieved that an electrochemical reaction occurring at the exposed area of the component (21, 22, 23, 24) and an outflow of electric current to the liquid are stopped.

The instant invention describes an anti-biofouling structure for placement onto structures or surfaces that are exposed to aquatic environments. Embedded within the anti-biofouling structure are agents that can diffuse out of the structure and prevent the formation and/or accumulation of plant and animal species build-up that creates biofouling. The instant invention also describes a system for preventing biofouling of an object stored in an aquatic environment which includes the anti-biofouling structure, and a protective cover element constructed and arranged to fit various structures, such as boat propellers.

An anti-fouling protective cover (10) configured to abut against a boat hull (1) below the sea surface (3) for fouling-reducing protection of the boat hull, comprising a main sheet (10b). It may comprise one or more cover foils (10a) configured to be separated from the antifouling protective cover (10).

Conventional aquatic organism adherence preventive films are designed for an underwater structure (mainly, a boat/ship or the like) capable of moving through water at relatively high speeds. That is, there has been no film capable of adequately preventing adherence of aquatic organisms to a sensor over a long period of time, and capable of being easily peeled off from a submersible sensor unit while preventing a pressure-sensitive adhesive from remaining on a housing of the submersible sensor unit. The present invention provides an aquatic organism adherence preventive film capable of preventing adherence of aquatic organisms even when used in an underwater structure receiving almost no a water flow resistance, e.g., an underwater structure involving almost no underwater movement, for about half a year, and capable of being easily peeled off from a submersible sensor unit while preventing a pressure-sensitive adhesive from remaining on a housing of the submersible sensor unit.