A device for continuous release of bio-active materials, and compositions comprising same into an aqueous environment, the device comprising: an upper container configured for containing at least one bio-active material; and a lower container comprising at least one open cell medium and at least one orifice allowing access and egress of aqueous solutions between the environment and the lower container, wherein said upper container is having a distal face and a proximal face, such that, the proximal face is facing the lower container..
A floating device for use on a water surface is disclosed. The floating device comprises: a generally spherical hollow body defined by an equator line, a top pole and a bottom pole. The floating device further comprises a non-flat floating member, being inside the hollow body and having an apex constituted to support the top pole when the floating device is placed on the water surface. The body of the floating device is formed with at least one opening at each of the top and the bottom poles, and with an arrangement of openings circumferentially distributed above and below the equator line.
E02B 3/00 - Engineering work in connection with control or use of streams, rivers, coasts, or other marine sitesSealings or joints for engineering work in general
A01K 63/04 - Arrangements for treating water specially adapted to receptacles for live fish
A01K 63/06 - Arrangements for heating or lighting in, or attached to, receptacles for live fish
A01M 29/32 - Scaring or repelling devices, e.g. bird-scaring apparatus preventing or obstructing access or passage, e.g. by means of barriers, spikes, cords, obstacles or sprinkled water specially adapted for birds, e.g. spikes
B65D 85/50 - Containers, packaging elements or packages, specially adapted for particular articles or materials for living organisms, articles or materials sensitive to changes of environment or atmospheric conditions, e.g. land animals, birds, fish, water plants, non-aquatic plants, flower bulbs, cut flowers or foliage
B65D 85/52 - Containers, packaging elements or packages, specially adapted for particular articles or materials for living organisms, articles or materials sensitive to changes of environment or atmospheric conditions, e.g. land animals, birds, fish, water plants, non-aquatic plants, flower bulbs, cut flowers or foliage for living plantsContainers, packaging elements or packages, specially adapted for particular articles or materials for living organisms, articles or materials sensitive to changes of environment or atmospheric conditions, e.g. land animals, birds, fish, water plants, non-aquatic plants, flower bulbs, cut flowers or foliage for growing bulbs
E04H 4/08 - Coverings consisting of rigid elements
B01J 19/16 - Preventing evaporation or oxidation of non-metallic liquids by applying a floating layer, e.g. of microballoons
A floating device is disclosed. The device comprises a first cup member and a second cup member, each having a base and an open end, the first cup member being formed with an opening at a center of a respective base. In some embodiments of the present invention the device comprises a connector member having a peripheral wall fittingly connected to the open ends and enclosing a barrier. The peripheral wall is preferably formed with openings arranged between the barrier and the first cup member such that, when the floating device contacts a liquid, the liquid enters through the openings into the first cup member to submerge the first cup member and to impart a restorable upright orientation to the device.
E02B 3/00 - Engineering work in connection with control or use of streams, rivers, coasts, or other marine sitesSealings or joints for engineering work in general
E04H 4/08 - Coverings consisting of rigid elements
B65D 88/36 - Large containers having floating covers, e.g. floating roofs or blankets with relatively movable sections
F24J 2/04 - Solar heat collectors having working fluid conveyed through collector
A63H 23/10 - Other water toys, floating toys, or like buoyant toys
B63B 22/18 - Buoys having means to control attitude or position, e.g. reaction surfaces or tether
A01M 29/32 - Scaring or repelling devices, e.g. bird-scaring apparatus preventing or obstructing access or passage, e.g. by means of barriers, spikes, cords, obstacles or sprinkled water specially adapted for birds, e.g. spikes
A01K 63/04 - Arrangements for treating water specially adapted to receptacles for live fish