Abstract: A robotic cleaner includes a housing, a suction conduit with an opening, and a leading roller mounted in front of a brush roll. An inter-roller air passageway may be defined between the leading roller and the brush roll wherein the lower portion of the leading roller is exposed to a flow path to the suction conduit and an upper portion of the leading roller is outside of the flow path. Optionally, a combing unit includes a plurality of combing protrusions extending into the leading roller and having leading edges not aligned with a center of the leading roller. Optionally, a sealing strip is located along a rear side of the opening and along a portion of left and right sides of the opening. The underside may define side edge vacuum passageways extending from the sides of the housing partially between the leading roller and the sealing strip towards the opening.

Abstract: A rain gutter that includes an overlying, leaf- and debris-shedding cover. The gutter is in the form of a channel having an upwardly-facing opening. The cover overlies the channel opening and includes a convex front edge that is spaced from the front edge of the channel to define a gap or opening between the cover and the channel to allow water to flow around the convex front edge and into the channel. A series of support brackets are positioned within the gutter channel and interconnect the gutter and the cover to provide a rigid gutter structure. An end cap is provided at each end of the gutter and overlies both the gutter channel section and the space between the channel section and the cover, to prevent entry of leaves and debris into the channel through the ends of the gutter.

Abstract: An end cap for rain gutters having an overlying cover for deflecting leaves and other debris to prevent gutter and downspout clogging. The end cap includes a gutter trough closure region, for blocking water flow from the end of the gutter, and a second, above-trough closure region for blocking entry of leaves and other debris into the end of the gutter between the gutter trough and the overlying cover.