For Opposed Surfaces Or Hollow Work Internal Cleaning Patents (Class 15/395)
  • Patent number: 4792363
    Abstract: A vent cleaning system for removing dust from a vent has a brush that substantially occludes the vent, and is rotated by a flexible shaft that is concentrically disposed in a flexible tubular vacuum conduit, so that dust is dislodged from the vent wall and vacuumed into the vacuum conduit.
    Type: Grant
    Filed: February 1, 1988
    Date of Patent: December 20, 1988
    Inventors: Smead P. Franklin, Jr., Edgar R. Johnson
  • Patent number: 4718142
    Abstract: A gas driven cleaning apparatus for clearing clogged pipe lines or the like. The apparatus is comprised of a gas driven nozzle having specially devised gas passages for aiding the propulsion of the nozzle through and clearing the clogged area. A flexible hose is connected to the nozzle and a high pressure gas cylinder supported on a two wheel hand cart. The hand cart has a main hose reel and handle for a first gas line and a portable hand reel which supports a second gas line connected to the main reel line and the nozzle at opposite ends. The hand reel may be carried apart from the hand cart to difficultly accessible or remote areas not approachable by the hand cart. In a modification the nozzle is provided with a rotary head element powered by the high pressure gas.
    Type: Grant
    Filed: July 31, 1986
    Date of Patent: January 12, 1988
    Assignee: D.W. Tool, Inc.
    Inventor: Ronald L. Wahlers
  • Patent number: 4715088
    Abstract: A vacuum cleaner attachment nozzle especially configured for cleaning confirmed areas beneath and behind major appliances and furniture and the like comprises a narrow and thin, longitudinally elongated, hollow body member, preferably approximately 3 feet in length, and having a vacuum cleaner hose fitting at one end, the opposite end of the body being closed, and suction openings being provided through the lateral side walls of the hollow body member, preferably along the entire length of the working portion of the attachment body, whereby cleaning air flows laterally through the suction openings in a plane substantially parallel to a surface being vacuumed as the attachment nozzle is moved from side to side during vacuuming.
    Type: Grant
    Filed: August 29, 1986
    Date of Patent: December 29, 1987
    Inventor: Gerald A. Haase
  • Patent number: 4694529
    Abstract: An extension device for vacuum cleaner specifically directed to dust removal from under household appliances and pieces of furniture having a small ground clearance. The device includes a main hollow blade portion and a socket portion for connection to the vacuum cleaner suction hose. The blade bottom wall has an elongated aperture and the blade is spacedly supported over ground by shoulder members at the ends of this aperture. The front end of the blade has also a transverse slit. The blade and socket bottom walls are coplanar.
    Type: Grant
    Filed: May 6, 1986
    Date of Patent: September 22, 1987
    Inventor: Remi Choiniere
  • Patent number: 4688295
    Abstract: A longitudinally slotted straight tube extension for the wand of a canister-type vacuum cleaner has plugged into its slot or slots narrow elongated brush elements which enable effective cleaning of very narrow spaces between furniture pieces and between furniture and closely adjacent walls.
    Type: Grant
    Filed: April 5, 1985
    Date of Patent: August 25, 1987
    Inventor: Doris H. Starnes
  • Patent number: 4546519
    Abstract: An apparatus for cleaning tubes which apparatus comprises a hollow barrel which is connected to a primary drum containing a coiled resilient tape so that the tape may pass from the drum along and out of one end of the barrel, an electric motor operatively connected to an inner end of the coil of tape and arranged to rotate the coil of tape and to drive the tape out of the barrel and to retract it into the drum, a cleaning device such as a brush attached to an outer end of the coil of tape, and a vacuum hose connected to the other end of the barrel and adapted for connection to a vacuum generating apparatus to create suction at said one end of the barrel, in which apparatus there is provided associated with the drum and the coil of tape a proximity switch sensor and a plurality of targets adapted to be sensed by the proximity switch sensor, relative rotation between the sensor and the targets causing the sensor to transmit impulses to a visible display device to indicate the amount of tape unwound from the coi
    Type: Grant
    Filed: April 20, 1984
    Date of Patent: October 15, 1985
    Assignee: Hyprovac (U.K.) Limited
    Inventor: Lawrence Pembroke
  • Patent number: 4473921
    Abstract: Cleaning device for the internal peripheral surfaces of pipelines or hollow cylindrical vessels, including instrument carriers having at least one working head being fixable in a working position and being movable along defined feed paths through the interior of the pipelines or vessels which are invisible from the outside, and instruments mounted on the at least one working head, the instruments including rotatable brushes being mounted on said working head and being pressable against inner wall surfaces to be cleaned, at least one suction nozzle being mounted on the working head and being movable into alignment with a given brush engagement region of a pipeline or vessel, an injector having a suction side connected to the suction nozzle, a discharge side and a propulsion nozzle, a propellant line feeding the propulsion nozzle of the injector from outside the pipeline or vessel, and a dust collecting bag connected downstream of the discharge side of the injector.
    Type: Grant
    Filed: September 17, 1982
    Date of Patent: October 2, 1984
    Assignee: Kraftwerk Union Aktiengesellschaft
    Inventors: Robert Weber, Siegfried Forner
  • Patent number: 4458375
    Abstract: A multiblade centrifugal fan blade cleaner with means abutting the opposing surfaces of adjacent blades of the fan for cleaning the blades.
    Type: Grant
    Filed: November 12, 1982
    Date of Patent: July 10, 1984
    Inventor: Walter H. Killeen
  • Patent number: 4326317
    Abstract: The decontamination apparatus comprises a rotatable hone capable of being inserted into a heat exchange tube of a steam generator for removing contamination from the inside of the heat exchange tubes. The apparatus also comprises means for advancing and retracting the hone and means for removing contamination from the apparatus as the apparatus is withdrawn from the steam generator.
    Type: Grant
    Filed: October 16, 1979
    Date of Patent: April 27, 1982
    Assignee: Westinghouse Electric Corp.
    Inventors: Edward H. Smith, Thomas H. Dent, Robert T. Marchese
  • Patent number: 4266316
    Abstract: A suction tube unit for removing packing coke from vertical spaces within a ring furnace for producing carbon bodies includes a plurality of elongated suction and air supply tubes, the tubes being arranged to extend parallel to each other and being aligned in a single straight row, with each adjacent pair of the suction tubes being separated by a separate one of the air-supply tubes, thus forming an elongated assembly adapted to fit within the vertical space of the furnace. The assembly is supported at an upper portion thereof by a telescopic mounting. All of the tubes are open at lower ends thereof. A suction device is connected to the upper end of the suction tubes for creating a vacuum within the suction tubes to thereby withdraw the packing coke therethrough. Upper portions of the air-supply tubes have therein orifices to supply ambient air into the air-supply tubes and to aid in withdrawal of the packing coke through the suction tubes.
    Type: Grant
    Filed: September 21, 1979
    Date of Patent: May 12, 1981
    Assignee: Ardal Og Sunndal Verk A.S.
    Inventors: Paul A. Schneider, Carlo Eliassen
  • Patent number: 4161802
    Abstract: The hand-held tool head assembly comprises a housing connected to a flexible vacuum hose to a source. The housing has an elongated front wall with a plurality of openings defining a suction surface. An intermediate portion of this wall is cut-out and formed with a receiving structure for receiving inserts. A first insert has a front wall portion with openings so that when it is received in the cut-out portion it is flush with the surface openings on either side of the cut-out to provide a continuous elongated cleaning surface. A second insert is arranged to be substituted for the first insert and has a front undulating suction surface defined by transverse fins with channels therebetween, the side walls of the fins, the front tips of the fins and the floors of the channels all having openings communicating with the interior of the tool head to provide suction surfaces for drapery pleats received within the channels.
    Type: Grant
    Filed: April 10, 1978
    Date of Patent: July 24, 1979
    Inventors: Arlen M. Knight, William R. Hachtmann
  • Patent number: 3980218
    Abstract: A hand held, vacuum operated desoldering tool and a holder fixture therefor is disclosed in which the desoldering tool has a tubular, barrel body with a nozzle tip forward end and a vacuum line attachment fitting at its opposite, rear end. A trigger is disposed in a trigger housing formed contiguously to the rear end for connecting the vacuum line to the interior of the barrel body and forward tip end of the tool. Thus when the trigger is actuated by the fingertip of the operator, the body is evacuated and an impulse of air is drawn thereinto through the forward nozzle tip of the tool for a desoldering operation. A baffle and filter are disposed within the tubular body to prevent solder and other particles from entering the trigger mechanism and the vacuum supply line.Another component of the combination disclosed is a tool holder and power tip cleaner for the desoldering tool. The tool holder includes a short, large diameter cylindrical body which carries a power piston.
    Type: Grant
    Filed: August 4, 1975
    Date of Patent: September 14, 1976
    Inventor: William S. Fortune
  • Patent number: 3946459
    Abstract: A self-propelled pipe cleaner uses a body shaped to conform to the inside of a pipe with the axial extent of the body covered with a bristle pile material extending outward from the body to engage the inside of the pipe. The pile has resilient bristles uniformly inclined rearwardly relative to a forward direction of motion of the body. A vibrator is mounted within the body and energized for vibrating the body reciprocally and axially so the bristles engaging the inside of the pipe move the cleaner forward through the pipe for cleaning the pipe.
    Type: Grant
    Filed: July 19, 1974
    Date of Patent: March 30, 1976
    Assignee: Lipe Rollway Corporation
    Inventor: Jack W. Armstrong