Abstract: Described is a gutter cleaning attachment for a leaf blower. The gutter cleaning attachment can be removably attached to a leaf blower in order to provide an elongated tubular cleaning structure that allows a user to direct air blown by the leaf blower into a rain gutter, while standing on the ground below the rain gutter. The gutter cleaning attachment includes a plurality of tubular segments that can be removably secured together in series in order to reach the rain gutter. A first tubular segment is sized so as to be attached to a conventional leaf blower. A gutter cleaning head is disposed on a tubular segment and includes an accordion-like mid-section that can be extended, compressed, and bent as desired. In operation, a user can bend the cleaning head into a U-shape or hook shape in order to direct air downward and into the rain gutter.

Abstract: A vacuum roll has an inner cylinder defining an interior chamber. The interior chamber is fluidly connected to a vacuum source for applying a vacuum thereto. An outer cylinder is rotatable about the inner cylinder and has a plurality of apertures therein. An actuator is configured to move the inner cylinder between a first position and a second position. The vacuum roll has a first vacuum profile with the inner cylinder in the first position and a second vacuum profile with the inner cylinder in the second position.

Abstract: A vacuum roll has an inner cylinder defining an interior chamber. The interior chamber is fluidly connected to a vacuum source for applying a vacuum thereto. An outer cylinder is rotatable about the inner cylinder and has a plurality of apertures therein. An actuator is configured to move the inner cylinder between a first position and a second position. The vacuum roll has a first vacuum profile with the inner cylinder in the first position and a second vacuum profile with the inner cylinder in the second position.

Abstract: Research-based design is described. In an embodiment, research data can be assessed to produce a list of objective factors that produce an elevated consumer response to designs, and a design scoring methodology can be developed based on the design research data and the objective factors. The objective factors can be applied to create a new design, and the new design can be scored utilizing the design scoring methodology to evaluate whether the new design would achieve the elevated consumer response.