Abstract: A rotating sprinkler is configured with only three components without need of any other manufactured component. The three components are constituted by a base component connected to a water source, a rotating head component from which a water stream is emitted which is rotatably mounted on an element of the base component, and a gravitating hammer component pivotally mounted on the head component that causes intermittent rotary motion of the head component about a vertical rotation axis by intermittently engaging the emitted stream and providing in response a reaction force. The hammer component is configured to intercept the emitted water stream within an interior space between a deflecting surface and a ramping surface when downwardly pivoted and to urge the intercepted water stream to flow upwardly along the ramped surface and to impinge upon the deflecting surface, causing the hammer component to pivot upwardly prior to being gravitated.

Abstract: A rotating sprinkler is configured with only three components without need of any other manufactured component. The three components are constituted by abase component connected to a water source, a rotating head component from which a water stream is emitted which is rotatably mounted on an element of the base component, and a gravitating hammer component pivotally mounted on the head component that causes intermittent rotary motion of the head component about a vertical rotation axis by intermittently engaging the emitted stream and providing in response a reaction force. The hammer component is configured to intercept the emitted water stream within an interior space between a deflecting surface and a ramping surface when downwardly pivoted and to urge the intercepted water stream to flow upwardly along the ramped surface and to impinge upon the deflecting surface, causing the hammer component to pivot upwardly prior to being gravitated.

Abstract: A hand-held hair grooming device comprising a housing adapted to be held in the hand of the user, an array including a plurality of electrically conductive tines extending outwardly from the housing, apparatus for mounting the plurality of tines in the housing, apparatus for applying an electric potential between adjacent times whereby lice or other pests suitably disposed between adjacent tines are electrocuted and apparatus for selectable displacement of some of the plurality of tines relative to others of said plurality of tines to assist in cleaning thereof.

Abstract: A hand-held hair grooming device comprising a housing adapted to be held in the hand of the user, an array of electrically conductive tines extending outwardly from the housing, apparatus for mounting the tines in the housing, and apparatus for applying an electric potential between adjacent tines whereby lice or other pests suitably disposed between adjacent tines are electrocuted.

Abstract: A hand-held hair grooming device comprising a housing adapted to be held in the hand of the user, an array of electrically conductive tines extending outwardly from the housing, apparatus for mounting the tines in the housing, and apparatus for applying an electric potential between adjacent tines whereby lice or other pests suitably disposed between adjacent tines are electrocuted.