Abstract: A device for projecting ice cubes onto a roof to scare away birds, especially pigeons. The use of ice is environmentally friendly and will not jam gutters.

Abstract: The problem of controlling dust during an operation such as a micro-etching process, associated with a dental appliance in an efficient and economical manner is solved by a unit which is portable and which encloses the appliance during the micro-etching process.

Abstract: A water-absorbent blanket that is located between a roof and the ceiling of a building, such as a residence, to catch and absorb any water that may leak through the roof or which is a result of condensation and prevent that water from reaching a finished ceiling.

Abstract: A hand-held tool has a leading edge which is inserted into a price channel and which has a tag exit port defined therein to be located in the price channel when in use and a trailing edge having a tag entrance port defined therein and into which a flexible tag is inserted. A bore connects the entrance port to the exit port and a flexible tag is forced through the entrance port, through the bore and out of the exit port to be positioned in the price channel.

Abstract: A windmill includes a rotor having an outer blade edge of a stacked blade configuration windmill which generates electricity through outside rings which include wire windings. The outer blade edges are configured in a C-shape to enclose as much as ¾ of the outside ring to give mounting areas and overall blade stability. The system can be mounted in vehicles to charge batteries or provide for hydrogen separation in hydrogen cars as well as many other applications. The system can be modular so that a windmill of any suitable size can be constructed.

Abstract: A pool cover supporting unit includes a plurality of spokes connected to a central hub. The hub rests floats in the pool and the spokes can be lengthened as needed to accommodate pools of various shapes, such as an oval pool. The unit is easily collapsed for storage and easily assembled for use.

Abstract: A brush device can be releasably attached to a distal end of a pool broom and has a plurality of strategically placed brushes which brushingly engage the surfaces of the beams of a pool cage to clean those surfaces. The brushes are mounted on a head that can be angularly adjusted so the brushes will engage the cage surfaces in a manner which is conducive to thorough cleaning of those surfaces. The brushes are releasably mounted so they can be removed for cleaning or replacement.