Plural Selective Air Draft Means, E.g., On-floor To Off-floor Patents (Class 15/331)
  • Patent number: 5345650
    Abstract: The present invention relates to vacuum cleaners which may be in the form of so-called upright and cylinder cleaners. In the vacuum cleaner according to the invention the functions of air movement and rotation of a rotary beater or brush are separated. This results in a more flexible product, less possibility of damage to a belt driving the beater and gives a ready means for stopping the beater when the cleaner is parked. The vacuum cleaner includes a main body, a first portion and an electric fan housing coupled to a first aperture of an air duct, the first portion including a suction opening adjacent a beating means, a turbine coupled to a second aperture of the air duct and a drive line coupling between the turbine and the beating means, whereby cleaned air is directed through the duct to the turbine.
    Type: Grant
    Filed: March 30, 1993
    Date of Patent: September 13, 1994
    Assignee: Electrolux Limited
    Inventors: David W. Downham, Andrew G. Hoyte
  • Patent number: 5247719
    Abstract: A tool storage arrangement is provided for a hard bag upright cleaner by forming a covered compartment in the hard bag portion and tool mounting means in the compartment.
    Type: Grant
    Filed: May 18, 1992
    Date of Patent: September 28, 1993
    Assignee: The Hoover Company
    Inventors: Richard A. Wareham, Robert C. Shorthill, Edgar A. Maurer
  • Patent number: 5243734
    Abstract: A cleaner is disclosed having both above and on floor operation where conversion to off the floor operation is occasioned by a manually operated conversion valve. It is latched in its converted position by manipulation of the cleaner handle to upright stored position prior to its manual operation.
    Type: Grant
    Filed: June 24, 1991
    Date of Patent: September 14, 1993
    Assignee: The Hoover Company
    Inventors: Edgar A. Maurer, Jeffrey S. Louis
  • Patent number: 5008973
    Abstract: A multi-purpose suction nozzle, for a vacuum cleaner, for cleaning different types of surfaces, such as hard smooth surfaces, textile floor coverings, and upholstery, whereby the suction nozzle is detachably connected to a suction hose of the vacuum cleaner via a pivotably mounted connector. The suction nozzle has a housing with a first suction opening that communicates with a first flow channel, and with a second suction opening about which are provided planar slide surfaces and which communicates with a second flow channel. A brush is rotatably mounted in the housing in such a way that bristles of the brush extend through the first suction opening. A mechanism provides for selective communication of either the first flow channel or the second flow channel with the connector.
    Type: Grant
    Filed: January 31, 1990
    Date of Patent: April 23, 1991
    Assignee: Dupro AG
    Inventor: Peter Worwag
  • Patent number: 4977638
    Abstract: Apparatus for a home workshop to collect wood dust from a plurality of work stations and deposit the dust in a container. There are suction hoses, one to each work station. At their outlet ends, the hoses are connected to a single control means operable to selectively connect one hose at a time to the container.
    Type: Grant
    Filed: September 5, 1989
    Date of Patent: December 18, 1990
    Inventor: Albert M. Best
  • Patent number: 4951346
    Abstract: An improved integrated cleaning attachment for both dry vacuuming or wet cleaning carpets, uphostery or the like, for use with a powered cleaning unit the cleaning attachment comprising a three dimensional frame having a top and bottom, the cleaning attachment having extending therefrom vacuum carrier devices for conducting a created vacuum from a source of created vacuum to the three dimensional frame, the three dimensional frame having liquid supply mechanisms extending to a source of liquid supply away from the three dimensional frame, the liquid supply mechanisms having liquid distribution mechanisms connected thereto, the cleaning attachment having disposed therein proximate the bottom thereof at least two vacuum nozzles, each having an opening therein, each opening extending substantially horizontally above a surface being cleaned, the at least two vacuum nozzles and the vacuum carrier devices having therebetween established diverting mechanisms to divert the created vacuum conducted by the vacuum carri
    Type: Grant
    Filed: December 7, 1987
    Date of Patent: August 28, 1990
    Assignee: Carl Salmon
    Inventor: Carl Salmon
  • Patent number: 4905341
    Abstract: Disclosed is an upright-type electric vacuum cleaner which comprises a suction port body provided with a rotary brush and a main body case supported tiltably on the suction port body. Improvements are made in details such as the arrangement for supporting the main body case in the suction port body, the arrangements of mounting a handle onto the main body case, the configuration of a main body duct, the arrangement of a rotary brush, the arrangement of a cover of the main body case, and the arrangement of a T-shaped joint for connecting the main body duct and a dust filter means, thereby increasing the strength and rigidity of each of these parts and improving the performance of the vacuum cleaner.
    Type: Grant
    Filed: September 17, 1986
    Date of Patent: March 6, 1990
    Assignee: Hitachi, Ltd.
    Inventors: Masao Sunagawa, Kazuhiro Kubota, Yoshitaro Ishii, Susumu Satoh
  • Patent number: 4811450
    Abstract: A vacuum cleaner main cleaning chassis has a pair of suction air channels leading from a principal suction area thereof. Suction force is provided in common in the air channels with a single suction motor. One of the suction air channels is adapted to receive an auxiliary cleaning hose which diverts the suction force in such air channel into the auxiliary hose. During such auxiliary cleaning, increased suction force may be created in the auxiliary hose by closing off air flow in the other suction air channel, which relieves part of the load on the common suction motor. Such relief results in increased rotational speed of the motor, which in turn correspondingly increases the suction air flow in the air channel associated with the auxiliary hose.
    Type: Grant
    Filed: August 27, 1987
    Date of Patent: March 14, 1989
    Assignee: Ryobi Motor Products Corp.
    Inventor: Stephen W. Steadings
  • Patent number: 4796327
    Abstract: In an apparatus for picking up dog excrement in conjuction with a street sweeper, which picks up by suction over a suction duct, a separating container for the dog excrement picked up is connected ahead of the dirt container of the street sweeper, the two containers being joined to each other over a suction line. By these means, contamination of the sweeper is avoided.
    Type: Grant
    Filed: September 23, 1987
    Date of Patent: January 10, 1989
    Assignee: Ing. Alfred Schmidt GmbH
    Inventor: Hans H. Doyen
  • Patent number: 4776059
    Abstract: A vacuum-cleaning apparatus for cleaning furniture or the like, especially upholstered furniture, upholstered vehicle seats, etc. The apparatus is connected via a vacuum conduit to a vacuum-cleaning unit. A first vacuum nozzle is provided with a brush and includes a housing having an intake opening that leads to the vacuum conduit. A second vacuum nozzle is embodied as a gap-cleaning nozzle and is pivotable, relative to the first vacuum nozzle, out of an inoperative position into an operative position, and vice versa. An air duct is pivotably mounted in the housing. In the operative position of the gap-cleaning nozzle, the latter communicates via the air duct with the intake opening of the housing to provide flow communication from the gap-cleaning nozzle to the vacuum conduit.
    Type: Grant
    Filed: February 3, 1988
    Date of Patent: October 11, 1988
    Assignee: Dupro AG
    Inventor: Peter Worwag
  • Patent number: 4723338
    Abstract: The invention features a suction cleaning device for cleaning hard-to-access areas such as crevices and corners.A crevice tool in the form of an extendable wand is disposed within a floor or rug attachment.The wand is built-in to the housing of the floor or rug attachment and does not require removal or change of attachments to actuate the crevice tool, thus providing convenience and a saving of time.
    Type: Grant
    Filed: November 24, 1986
    Date of Patent: February 9, 1988
    Inventor: Hirofusa Otsubo
  • Patent number: 4628566
    Abstract: A filter apparatus is disclosed for removing contaminants discharged from paper handling machines in data processing rooms. Such contaminants include paper dust and carbon black from high speed paper handling machines such as computer printers, paper cutters and the like. The apparatus comprises a wheeled housing having a top cover with an outlet grille. A squirrel cage fan is suspended from the cover beneath the grille. A filter pack is mounted beneath the fan. The bottom of the housing has an inlet opening connected to a duct which passes air from the machine being serviced, through the filter pack and out the grille.A vacuum motor is mounted in the bottom of the housing and connected to a flexible hose for picking up material on the floor as well as spillage from inside the data processing machines. This material is passed through an in-line hydraulic filter to remove large contaminants, and then through the filter pack to remove smaller contaminants.
    Type: Grant
    Filed: November 15, 1985
    Date of Patent: December 16, 1986
    Assignee: John C. Bertelsen
    Inventor: Gary Klapperich
  • Patent number: 4583260
    Abstract: A combined vacuum cleaner and steam iron comprising a housing having a substantially flat bottom, which housing being provided with a chamber for containing water and another chamber for collecting dust, a heating device mounted in the water chamber by which steam is generated and thus discharged through a passage out of the water chamber, means for connecting various suction tubes, which means being formed integrally with the housing, a casing connected with the housing, in which casing a motor and a fan are provided for generating a suction force which is operable to introduce the dust through the suction tube into the dust chamber.
    Type: Grant
    Filed: May 13, 1985
    Date of Patent: April 22, 1986
    Inventor: Re Chin Zai
  • Patent number: 4574420
    Abstract: A portable particle separator mounted on a frame with a collection chamber for particles and a vertical lifting unit having a pair of articulated parallel frame support elements hydraulically driven so that the collection chamber can be vertically moved to transfer particles to a dump truck. The particle separator includes a self-contained collection chamber with multiple inner chambers sealed by a common door. In an alternative embodiment, the portable particle separator includes a front floor conduit to pick up bulk particles and a front set of sweeper floor nozzles for small size particles.
    Type: Grant
    Filed: February 24, 1984
    Date of Patent: March 11, 1986
    Assignee: NFE International, Ltd.
    Inventor: George T. Dupre
  • Patent number: 4479282
    Abstract: A cleaning trolley comprising a stand movable on wheels, provided with a table and a vibrating suction box arranged therein, said suction box having a regulating block for regulating the operating length of the suction box, and said stand also carrying a vacuum cleaning unit with a lid-closed container for collecting dust and scrap particles and a suction assembly. According to the invention the lid is provided with a disc-shaped switching means for the suction path, which is pivotably journalled about a vertical axis and which has two openings spaced at a predetermined distance from each other and equidistant from the axis, for alignment with the inlet of the lid, one of the openings being connected to the suction box via a suction tube and the other opening being connected to a freely movable suction tube, the openings and suction tubes forming two section paths for arbitrary connection by turning the suction-path disc-switch to a position aligning one of the openings with the inlet of the lid.
    Type: Grant
    Filed: December 8, 1982
    Date of Patent: October 30, 1984
    Inventor: Bengt O. Hallstr/o/ m
  • Patent number: 4334337
    Abstract: The disclosure concerns a compact wet-dry vacuum cleaner adapted for collecting both wet and dry materials. The vacuum cleaner is powered by a by-pass type blow motor which is supported in a housing. The housing includes a baffle for separating the inflowing cooling air to the motor from the outflowing air which has cooled the motor. The placement of inlets and outlets to the motor housing prevents debris and liquid from splashing on the motor. A materials collection tank is separably attached to the motor housing to enable the tank to be removed for cleaning. The tank includes a nozzle at its front wall, which nozzle has an exit near the top of the tank. A curved air flow redirector at the top of the tank separates collected material from the air. The outlet from the tank is laterally spaced from the flow redirector. The motor housing is attached to a swivelable cover that extends over the motor. The cover extends over a duct that communicates between the materials collection tank and the blow motor.
    Type: Grant
    Filed: March 28, 1980
    Date of Patent: June 15, 1982
    Assignee: Shop-Vac Corporation
    Inventors: Jonathan Miller, Richard Fegan, Robert C. Berfield, Kenneth R. Hiester, Rudolph W. Wacek
  • Patent number: 4167800
    Abstract: Convertible wet and dry vacuum extraction system, in which compartments are provided in the interior of a vacuum housing that has a substantially air-tight exterior wall provided with a closable access opening communicating with one compartment as well as a housing inlet extending through the wall for outward flow connection with an external dry vacuum hose and for inward flow connection with a removable dry vacuum recovery bag positionable in a compartment which also is in communication with the remainder of the interior of the housing where means are provided for creating a vacuum in the housing, and in which a substantially air-tight removable wet recovery vacuum tank is insertable through the closable access opening and receivable at least partially in the compartment to convert the assembly of the system from dry to wet vacuum extraction, the tank having an inlet for flow connection with an external wet vacuum hose leading to a wet vacuum extractor, a tank surface portion provided with a flow opening and
    Type: Grant
    Filed: March 28, 1977
    Date of Patent: September 18, 1979
    Inventor: Herbert Tribolet
  • 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: 4023234
    Abstract: A suction cleaner nozzle has main and edge cleaning secondary nozzle openings oriented at right angles to one another. An auxiliary passage connects the secondary nozzle with a zone of high suction in the suction source for the main nozzle. Valve means in the auxiliary passage may be moved selectively to open or closed position. A clean-out door is provided for the auxiliary passage.
    Type: Grant
    Filed: November 5, 1975
    Date of Patent: May 17, 1977
    Assignee: Health-Mor, Inc.
    Inventors: Eugene F. Martinec, Max L. Fairaizl
  • Patent number: 3959846
    Abstract: The improvement in a rotary vacuum or suction sweeper of the type wherein vacuum of suction is created underneath the carriage body of a wheeled vehicle by the driven rotation of blower impeller means, within a blower housing comprising a part of the carriage body. Thereby as the sweeper is moved over an area to be cleaned by an operator pushing or pulling a handle extending angularly upwardly from the vehicle in the manner in which one pushes a rotary lawn mower, dirt and debris are sucked up below the carriage body and delivered into a catch bag disposed over duct means extending rearwardly from the rotor impeller housing. With the present invention, a plate valve is interposed in such duct means, which valve, when closed, diverts the air flow from its normal path back into the catch bag, to a forwardly facing duct to which is attached a hoselike element having an open discharge end. Articulated control means are provided to extend downwardly and adjacent the machine operating handle.
    Type: Grant
    Filed: May 19, 1975
    Date of Patent: June 1, 1976
    Inventor: Haruma Yasuda
  • Patent number: 3943597
    Abstract: A vacuum cleaner has a casing with an internal duct connecting the air outlet of the vacuum cleaner fan with a discharge aperture. The casing has one or more primary apertures formed in its wall and communicating through the interior of the casing with one or more secondary apertures in the duct wall, whereby the air flow through the duct induces a secondary flow of ambient air through the primary apertures. This secondary air flow effects a cooling of the casing wall and a reduction of the temperature of the discharged air. An apertured internal partition may be provided for locally reducing the cross-section of the coolant air flow path, thereby insuring a uniform cooling effect upon the casing wall.
    Type: Grant
    Filed: March 8, 1974
    Date of Patent: March 16, 1976
    Assignee: A/S Fisker & Nielsen
    Inventor: Hans Mathiesen Dall
  • Patent number: 3942216
    Abstract: A wheeled suction nozzle is provided having, generally, a simplified three-piece construction including an upper shell, an intermediate plate and a bottom pan, with the intermediate plate sandwiched between the other two members so that its top surface and the bottom surface of the upper shell form the suction passageways for the nozzle.A rotary valve is included to activate edge or normal suction, with this valve rotating on a vertical axis and snapfit into position and thus not requiring any sort of connecting means which would positively maintain the rotary valve attached to the nozzle.
    Type: Grant
    Filed: March 4, 1974
    Date of Patent: March 9, 1976
    Assignee: The Hoover Company
    Inventor: Keith G. Minton
  • Patent number: 3936903
    Abstract: A vacuum cleaner suction tool including a nozzle provided with improved structure for selectively applying high suction to an edge portion of the nozzle such as for improved cleaning of corner and edge areas. The suction control includes a valve adjacent the suction outlet of the nozzle and an operator for selectively positioning the valve to provide selective control of the suction action in the nozzle.
    Type: Grant
    Filed: June 3, 1974
    Date of Patent: February 10, 1976
    Assignee: Whirlpool Corporation
    Inventor: Robert Edward Johnson