Abstract: This invention relates to a device for dispensing spray drops or foam. A first illustrative example of the invention is an electrically powered dispenser comprising: a pressurization system for automatically regulating a pressure level of a gas in a pressurizable space, the pressurization system being configured: to take a pressure reading of the gas, to make a determination if the pressure reading indicates a deviation from a desired pressure level, and based on the determination to make a decision selected from a list comprising at least the following: to start pressurization, to continue pressurization, to stop pressurization, or to do nothing. According to variations or refinements of this first example the pressurization system is sufficiently sensitive to indicate the deviation even if the deviation is minimal. According to other variations or refinements of this first example, the desired pressure level can be, e.g., less than 10 psi.

Abstract: This invention relates to a device for dispensing foam onto plants and other objects. According to one example, the dispenser for dispensing foam comprises: a supply line in which a foamable solution flows under pressure and which comprises a gas inlet, a wand, a mixing chamber, and a nozzle, wherein the gas inlet introduces a gas into the foamable solution, the mixing chamber helps process the foamable solution into a foam, and the nozzle ejects the foam. In a variation, the mixing chamber can be located distally on the wand. In another example, the dispenser for dispensing foam comprises: a wand fluidly connected to a nozzle for ejecting a foam and a wiper attached to the wand, the wiper being for temporarily retaining ejected foam and making the foam available for wiping the foam onto a target surface.

Abstract: In one embodiment, a foamable solution dispenser, comprising: a foamable solution container and a mechanical foaming head, the foaming head comprising a mixing chamber configured with an air chamber, a liquid chamber and a manifold for receiving and mixing air and the foamable solution into a foam, wherein the foamable solution is disposed in the container and wherein the foamable solution comprises an active ingredient, water and a foaming agent. In a further embodiment, a foamable solution, comprising an active ingredient for application to plants, water and a foaming agent. In a still further embodiment, a foamable herbicide solution, comprising an herbicide, water and a foaming agent, wherein the foaming agent is aerobically readily biodegradable.

Abstract: In one embodiment, a method for testing a helmet comprising the steps of: placing a strike helmet on a first headform; placing a target helmet on a second headform, colliding the strike helmet against the target helmet; and measuring the acceleration of the second headform caused by the collision. In a second embodiment, an apparatus for testing a helmet comprising: a strike helmet placed on a first headform; a target helmet placed on a second headform; a motion device for moving the strike helmet to collide with the target helmet.

Abstract: In one embodiment, a method for testing a helmet comprising the steps of: placing a strike helmet on a first headform; placing a target helmet on a second headform, colliding the strike helmet against the target helmet; and measuring the acceleration of the second headform caused by the collision. In a second embodiment, an apparatus for testing a helmet comprising: a strike helmet placed on a first headform; a target helmet placed on a second headform; a motion device for moving the strike helmet to collide with the target helmet. In a third embodiment, a helmet comprising: a shell having a zone of a greater rigidity; having a zone of a lesser rigidity; wherein the zone of lesser rigidity covers a portion of the frontal bone of a wearer.