# US 10,118,768 B2 · Sewer cleaning device and/or street cleaning device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,118,768 B2 - Document ID: US10118768B2 - Status: Granted - Kind: B2 - Application number: 15/838,795 - Filed: 2017-12-12 - Published: 2018-06-28 - Granted: 2018-11-06 - Earliest claimed: 2016-12-22 - Applicants: Karl Wiedemann - Inventors: Karl Wiedemann - Web page: https://patentgrep.com/patent/US10118768B2 ## CPC - B65G 33/18: with multiple screws in parallel arrangements {, e.g. concentric} - B65G 65/466: {arranged to be movable} - E03F 7/10: Wheeled apparatus for emptying sewers or cesspools - E03F 9/00: Arrangements or fixed installations {methods or devices} for cleaning {or clearing} sewer pipes, e.g. by flushing (sediment traps, rakes, screens, or the like, arranged in sewer lines E03F5/14; cleaning pipes in general, devices for cleaning pipes B08B9/02 {; gullies provided with flushing means for cleaning or emptying E03F5/0402; devices to remove obstructions in waste-pipes or sinks E03C1/30}) - B65G: TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS (packaging B65B; handling thin or filamentary materials, e.g. paper sheets or thread, B65H; cranes B66C; portable mobile or lifting or hauling appliances, e.g. hoists, B66D; devices for lifting or lowering goods for loading or unloading purposes, e.g. fork-lift trucks, B66F9/00; emptying bottles, jars, casks, barrels or similar containers, not otherwise provided for, B67C9/00; delivering or transferring liquids B67D; filling or discharging vessels for liquefied, solidified or compressed gases F17C; pipe-line systems for fluids F17D) - E03F: SEWERS; CESSPOOLS ## Abstract A sewer cleaning device and/or street cleaning device includes a dirt removal container for receiving and transporting mineral dirt residues accumulating during sewer and/or street cleaning. A removal device for clearing out the dirt removal container includes a conveying worm arrangement received on a swivel frame which is swivel-mounted on an axis extending in a longitudinal direction of the container and swivellable by a swivel drive. The conveying worm arrangement is sideways deflectable by the swivel frame relative to a center position associated with the container bottom on both sides along the container wall and a fast discharge of the dirt removal container can be achieved by two conveying worms arranged in symmetrical position relative to a central longitudinal axis of the swivel frame, the conveying worms limiting a gap therebetween and acting together for the transport of the bulk material along the inner side of the container wall. ## Claims ### Claim 1 A sewer cleaning device and/or street cleaning device comprising: at least one barrel shaped dirt removal container for receiving and transporting mineral dirt residues accumulating during sewer and/or street cleaning with a removal device being provided for clearing out the dirt removal container and associated with the latter; the dirt removal container being provided with a conveying worm arrangement extending in a longitudinal direction of the dirt removal container and with a rotary drive device; the conveying worm arrangement being received on a swivel frame; the swivel frame being swivel-mounted on an axis extending in a longitudinal direction of the container and swivellable by a swivel drive; the conveying worm arrangement being sideways deflectable by the swivel frame relative to a center position associated with the container bottom on both sides along the container wall; the conveying worm arrangement of the dirt removal device being provided with two conveying worms arranged parallel to each other in symmetrical position relative to a central longitudinal axis of the swivel frame received thereon; the conveying worms limiting a gap therebetween and acting together for the transport of the bulk material along the inner side of the container wall forming the radially inner limitation of the gap; the swivel frame receiving the two conveying worms and including two parallel end shields spaced from each other in the longitudinal direction of the conveying worms, swivellable about the central longitudinal axis of the dirt removal container; the end shields having a form broadening towards the container wall; the two conveying worms being arranged on the end shields at a distance forming the gap, with at least an end shield facing the rear end of the dirt removal container including a gate shaped section associated with the gap; and the gate shaped section being open on a rim facing the inner side of the container wall. ### Claim 2 (depends on 1) The sewer cleaning device and/or street cleaning device of claim 1, wherein the two conveying worms are spiralled in opposite directions and drivable in opposite directions facing each other in the region of the container wall. ### Claim 3 (depends on 1) The sewer cleaning device and/or street cleaning device of claim 1, wherein the two conveying worms are individually drivable by one associated drive motor. ### Claim 4 (depends on 1) The sewer cleaning device and/or street cleaning device of claim 1, wherein the swivel frame receiving the conveying worms is configured to be deflectable relative to its center position by an angle which is smaller than 90 degrees. ### Claim 5 (depends on 3) The sewer cleaning device and/or street cleaning device of claim 3, wherein the associated drive motor is a hydraulic motor. ### Claim 6 (depends on 1) The sewer cleaning device and/or street cleaning device of claim 1, wherein: the distance between the two end shields is smaller than the length of the conveying worms arranged thereon, and one end shield is arranged in the region of a rear opening of the dirt removal container. ### Claim 7 (depends on 1) The sewer cleaning device and/or street cleaning device of claim 1, wherein: the dirt removal container in the region of its rear end includes an opening and a swivel cover, and the opening is closed by the swivel cover and associated with a tipping shield. ### Claim 8 (depends on 1) The sewer cleaning device and/or street cleaning device of claim 1, wherein: downstream of the conveying worms, a discharge worm arrangement is arranged transversely to the conveying worms behind the dirt removal container, and the discharge worm arrangement includes a discharge worm configured to move in a trough adjacent to the opening of the sludge removal container. ### Claim 9 (depends on 8) The sewer cleaning device and/or street cleaning device of claim 8, wherein the discharge worm arrangement arranged transversely to the conveying worms is subdividable along its length and includes an extension section which is raiseable from a lying work position to an upright drive position and which laterally protrudes sideways over the dirt removal container in the work position. ### Claim 10 (depends on 9) The sewer cleaning device and/or street cleaning device of claim 9, wherein both worm sections of the discharge worm arrangement are drivable by a common drive motor and are coupled with each other by a claw clutch which is engaged and disengaged by the swivel movement of the extension section. ### Claim 11 (depends on 8) The sewer cleaning device and/or street cleaning device of claim 8, wherein: the trough includes a foldable protection shield provided on a lateral wall of the trough and facing away from the dirt removal container, and the foldable protection shield is configured to increase a height of the lateral wall of the trough. ### Claim 12 (depends on 8) The sewer cleaning device and/or street cleaning device of claim 8, wherein the trough is suppliable by the tipping shield and includes an outlet. ### Claim 13 (depends on 1) The sewer cleaning device and/or street cleaning device of claim 1, wherein the swivel frame receiving the conveying worms is deflectable relative to its center position by an angle which is approximately one half of the angular offset of the two conveying worms on the swivel frame and smaller than 90 degrees. ### Claim 14 (depends on 1) The sewer cleaning device and/or street cleaning device of claim 1, wherein the tipping shield is a slide arranged underneath the container end and is laterally flanking the container end.