With Flexible Conduit Connection Between Ambulant Air Draft Applying Means And Relatively Stationary Air Pump Or Supply Patents (Class 15/314)
  • Patent number: 5114050
    Abstract: A garage forecourt installation is disclosed in which the fuel dispensing pump is linked to a vacuum cleaning device so that as the fuel pump is switched on suction is made available at a suction cleaning nozzle. The provision of suction ceases on the pump being switched off, or a predetermined time thereafter. The fuel pump can be linked (by a cable) to an electric motor of the vacuum cleaning device so that they are activated simultaneously. A time delay device can be incorporated so that the motor of the vacuum cleaner runs on after the fuel dispensing pump stops.
    Type: Grant
    Filed: January 23, 1991
    Date of Patent: May 19, 1992
    Assignee: Vaccar Systems (Proprietary) Limited
    Inventor: Peter Morris
  • Patent number: 5099544
    Abstract: Vacuum cleaning apparatus is disclosed with built in air pressure supply lines for operating pneumatic tools. An air operated valve switch actuator is coupled between the pneumatic air pressure and the vacuum motor to make the vacuum motor operate simultaneously with the pneumatic tool. Preferably the vacuum motor operates for a short period after the tool is turned off. The switch actuator has a piston and cylinder arrangement with an inlet and outlet connected in series in the pneumatic pressure line. When the tool is turned on, a pressure drop in a valve chamber adjacent to the outlet causes the piston to move to a forward position where a plunger actuates a vacuum motor switch. When the tool is turned off, pressure is equalized in the valve chamber through a narrow bleeder or by-pass channel. When the pressure is equalized, a spring biases the piston to a rearward position to de-actuate the vacuum motor switch.
    Type: Grant
    Filed: September 10, 1990
    Date of Patent: March 31, 1992
    Inventor: Sam Yamamoto
  • Patent number: 5083704
    Abstract: An automatic trash disposal system (20) employing a trash discharge station (56) located internally of a building structure (22) and having a plurality of dedicated trash disposal ports (60P, 60M, 60G, 60NR) for receipt of different categories of recyclable trash items and/or non-recyclable trash items; a remotely located trash housing (21) exterior of the building structure (22) and housing a plurality of dedicated removable trash receptacles (36, 38, 39, 40); conduits (64P, 64M, 64G, 64NR) coupling the trash disposal ports (60P, 60M, 60G, 60NR) with respective different ones of the remotely located dedicated trash receptacles (36, 38, 39, 40); and, a blower/motor combination (68/79) for drawing a vacuum in the enclosed remotely located trash housing (21) and the conduits (64P, 64M, 64G, 64NR) for vacuum transferal of items of trash inserted into a particular one of the interior trash disposal ports (60P, 60M, 60 G, 60NR) to a particular one of the remotely located dedicated trash receptacles (36, 38, 39, 40
    Type: Grant
    Filed: August 6, 1990
    Date of Patent: January 28, 1992
    Inventor: George Rounthwaite
  • Patent number: 5075920
    Abstract: A standard size receptacle for use with a vacuum system, said receptacle extending through a wall, the receptacle carrying a housing for fastening to a wall, the housing having disposed therein a fluid supply and a vacuum inlet, the fluid supply incorporating a quick connect and a check valve.
    Type: Grant
    Filed: June 8, 1990
    Date of Patent: December 31, 1991
    Assignee: Carl Salmon
    Inventor: Carl Salmon
  • Patent number: 5060341
    Abstract: A hand held wand with forefinger and thumb contours (75) so arranged that upon grasping the wand the index finger is automatically positioned over an on/off switch (74). The wand and switch communicates with a motor/fan housing (39) by way of electrical conductors (81) encased in a thin profile hose (80). A device specifically used to remove eraser debris from a drawing surface. The positioning of the wand over a given task and applying power to the motor/fan is accomplished with the use of one hand. The wand (73) is equipped with a hanging ring (70) for wand positioning when not in use. The hanging ring, (70) when placed on the ring hook (71), holds the wand in an upright position which is convenient for the operator during his or her course of work. Airborne eraser debris is carried through the hose (80) to the motor/fan housing (39) and deposited in an air filter bag (45) enclosed within an air filter bag chamber (64).
    Type: Grant
    Filed: March 8, 1991
    Date of Patent: October 29, 1991
    Inventor: Joseph A. Nelle
  • Patent number: 5050264
    Abstract: A module adapted to be used as and an end or intermediate plate for a canister-type vacuum cleaner. The module comprises a disk-shaped body having a plurality of closed peripheral recesses which may be used to mount components to the body, or opened to form passages through the body. A groove is formed in the body to the interior to the peripheral recesses to receive and provide for the positioning of a baffle relative to the plate. In the preferred embodiment the groove is circular and the plate has a closed central recess formed centrally of the recess, which central recess may be opened to form a passage through the body.
    Type: Grant
    Filed: April 16, 1990
    Date of Patent: September 24, 1991
    Assignee: Beamco, Inc.
    Inventor: John J. Breslin
  • Patent number: 5018238
    Abstract: A hand held wand with forefinger and thumb contours (75) so arranged that upon grasping the wand the index finger is automatically positioned over an on/off switch (74). The wand and switch communicate with a motor/fan housing (39) by means of electrical conductors (81) encased in a thin profile house (80). A device specifically used to remove eraser debris from a drawing surface. The positioning of the wand over a given task and applying power to the motor/fan is accomplished with the use of one hand. The wand (73) is equipped with a hanging ring (70) for wand positioning when not in use. The hanging ring (70) when placed on the ring hook (71) holds the wand in an upright position which is convenient for the operator during his or her course of work. Airborne eraser debris is carried through the hose (80) to the motor/fan housing (39) and deposited in an air filter bag (45) enclosed within an air filter bag chamber (64).
    Type: Grant
    Filed: May 17, 1989
    Date of Patent: May 28, 1991
    Inventor: Joseph A. Nelle
  • Patent number: 5007335
    Abstract: A method and apparatus are disclosed for treating fresh fruit to prevent and retard the growth of fungus. The techniques of the invention include simultaneously scrubbing the fresh fruit while drenching with a falling liquid containing a fungicide. Large volumes of liquid are used and the liquid can be recycled. The liquid also removes dirt and debris and, while containing a rather small amount of fungicide, such amount is present in a concentration sufficient to apply a coating to the fruit at the end of the scrubbing step given proper pH control. The pH of the solution is controlled. During the scrubbing step, the fruit is continuously rotated to provide even fungicidal deposit.
    Type: Grant
    Filed: August 24, 1989
    Date of Patent: April 16, 1991
    Assignee: Sunkist Growers, Inc.
    Inventors: Charles R. Orman, Paul E. Johnson, Bruce C. Adams
  • Patent number: 5004428
    Abstract: An endpiece for a vacuum hose of a central vacuum system. There is a body having first and second ends. A nozzle projects outwardly from the first end and to go into an inlet valve of a central vacuum system. An opening in the second end receives the vacuum hose. A pathway through the body, communicates the nozzle and the opening in the second end. A connector on the body is generally adjacent the first end and a conductor joins the connector to the second end so that electrical current can be conducted from the connector to the second end of the body.
    Type: Grant
    Filed: June 11, 1990
    Date of Patent: April 2, 1991
    Inventor: Theodore R. Hayden
  • Patent number: 4997209
    Abstract: A one-piece hollow sleeve molded of an elastomeric vinyl has a cylindrical rear end portion for attachment to a flexible hose of central vacuum cleaning system and has a front end portion which is slidably frictionally engageable within the inlet opening of variety of inlet valves. The front end portion is formed with a series of specifically sized and located tapered zones of varying lengths and angles of taper which enable the sleeve to be used with a variety of inlet valves having various internal diameters and lengths. A metal band is seated in a recess formed in the front end portion between certain of the tapered zones and has a length and location enabling it to contact the various pairs of contact buttons of the various types and styles of inlet valves. This universal sleeve eliminates a different hose attachment sleeve being required for each of the most common inlet valves of the most popular central vacuum cleaning systems.
    Type: Grant
    Filed: October 26, 1989
    Date of Patent: March 5, 1991
    Assignee: H-P Products, Inc.
    Inventors: Robert F. McGrath, Donald V. Bailey
  • Patent number: 4991253
    Abstract: An industrial central vacuum system has a filter chamber having an intake port connectable to a plurality of intake nozzles and an output port, a multispeed blower having an intake side and an output side and energizable for drawing in air at its intake side and expelling it at its output side, a conduit connected between the intake side of the blower and the output port of the filter chamber, and a valve having an outer side opening to ambient pressure and an inner side opening into the conduit. Thus when the valve is open ambient air can be admitted directly into the conduit. A controller is between the blower and the valve for opening the valve prior to energizing and de-energizing the blower and for closing the valve a predetermined interval after energizing the blower. A pressure sensor is provided in the conduit and the blower is operable at a high speed corresponding to a relatively large blower throughput and at a low speed corresponding to a relatively small blower throughput.
    Type: Grant
    Filed: January 12, 1990
    Date of Patent: February 12, 1991
    Assignee: Steinemann AG
    Inventor: Ernst Rechsteiner
  • 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: 4947509
    Abstract: A suction device for communicating the suction nozzles of a plurality of spinning positions of a spinning machine with suction producing apparatus includes a plurality of intermediate conduits each communicating a respective discrete group of the suction nozzles with the suction producing apparatus.
    Type: Grant
    Filed: March 7, 1989
    Date of Patent: August 14, 1990
    Assignee: Zinser Textilmashinen GmbH
    Inventor: Friedrich Dinkelmann
  • Patent number: 4941230
    Abstract: A portable tacking unit includes a hand-held tacking head having a cylindrical brush operatively communicating with a central suction unit via a flexible conduit. The unit is readily adapted to electrostatically attract, and remove fine dust particles from surfaces prior to painting, lacquering or coating thereof.
    Type: Grant
    Filed: February 6, 1989
    Date of Patent: July 17, 1990
    Inventor: Patrick H. Lamore
  • Patent number: 4846531
    Abstract: A cylindrical brush is formed to have multiple interfitting and interconnected sections which may consist of synthetic resin; holes are controllably and automatically drilled in the sections in selected patterns so that bristles may be filled into certain holes to be retained by staples; other holes may be controllably drilled into the sections and shaped to supply fluid radially outwardly for cleaning bristles or for cleaning work, or drying or waxing same; holes may be formed at telescoping end extent of the sections; bristles may be anchored by staples with legs deflected by a mandrel or shaft; and staples may act to lock telescoping sections of a sleeve or core, assisted by bonding of the plastic sections.
    Type: Grant
    Filed: May 4, 1988
    Date of Patent: July 11, 1989
    Assignee: L.A. Brush Manufacturing Corp.
    Inventors: Anthony C. Boland, George R. Maxwell
  • Patent number: 4829626
    Abstract: The invention relates to a method of control for a device such as a vacuum cleaner or a central vacuum cleaner comprising a central machinery and a pipe or a pipe system connecting the central machinery with a working point.
    Type: Grant
    Filed: November 9, 1987
    Date of Patent: May 16, 1989
    Assignee: Allaway Oy
    Inventors: Jouko Harkonen, Reino Mustalampi
  • Patent number: 4827558
    Abstract: A vacuum conduit arrangement for use with a central dust-collecting system that is provided in a building. The arrangement includes vacuum conduits that are interconnected by couplings. The arrangement further includes at least one connector for a vacuum hose of a cleaning apparatus. The vacuum conduits are conduit-like floor or base moldings that are disposed in the corner zones between the floors and walls of the building. These moldings can be easily retrofitted in an exposed manner as a conduit system along the edges of the floors.
    Type: Grant
    Filed: January 29, 1987
    Date of Patent: May 9, 1989
    Assignee: Dupro AG
    Inventor: Peter Worwag
  • Patent number: 4823428
    Abstract: An apparatus for disposing of waste liquid from an industrial cleaning system, which comprises a waste liquid holding tank designed to fit on a toilet, for receiving waste liquid and automatically emptying the waste liquid from the holding tank into the toilet when the holding tank is full.
    Type: Grant
    Filed: November 30, 1983
    Date of Patent: April 25, 1989
    Inventor: Conrad Sevigny
  • Patent number: 4809391
    Abstract: Apparatus for removing asbestos material from horizontally arranged pipes in a linear, T-shaped or L-shaped configuration includes a rigid box-like device having a rectangular bottom wall and four side wall sections which extend upwardly from peripheral edges of the bottom wall so as to define a continuous side wall and so as to define an enclosure therebetween, the side wall having an upper edge with two pair of opposing recesses formed orthogonally with respect to each other in the upper edge of the continuous side wall for receiving the pipes, the upper end of the box-like device defined by the upper edge of the continuous side wall being open; a plurality of glove apertures formed in two opposing side walls, a glove associated with each glove aperture, each glove connected to the side wall in sealing relation to the respective glove aperture and extending into the enclosure; two suction apertures formed in the remaining side walls for connection to a negative pressure system to supply negative pressure to
    Type: Grant
    Filed: July 8, 1988
    Date of Patent: March 7, 1989
    Inventor: Dragisa Soldatovic
  • Patent number: 4805255
    Abstract: A coin operated vacuum is made with two housings, one for mounting the coin mechanism and the vacuum motor and blower, and the other comprising the debris collection barrel and filter. The two housings are made so that they are virtually tamper-proof, and are joined together as a unit, with the housing mounting the operating components comprising a tower that is securely fixed from the inside to a support base, and which is constructed to provide ready axis to the internal operating components by removal of a secure draw bolt type lock. The debris collection bin has a removable top which can be removed for access to the interior for removal and replacing of a plastic bag that collects the heavy debris and also for servicing a filter that filters the air on the intake side of the vacuum blower.
    Type: Grant
    Filed: May 26, 1988
    Date of Patent: February 21, 1989
    Assignee: G.H.C., Inc.
    Inventor: Virgil C. Hed
  • Patent number: 4800612
    Abstract: A vacuum power booster with automatic waste liquid discharge for a water vacuum extraction apparatus. A first vacuum source is coupled to a first waste liquid storage tank in a main housing, typically vehicle mounted. A second, auxilliary vacuum source is mounted in a mobile housing remotely located from the first housing which contains a second auxilliary waste liquid storage tank. A vacuum pickup implement is coupled to the mobile waste liquid storage tank for extracting and transmitting dirty liquid from the surface being cleaned to the second waste liquid storage tank. The liquid in the second waste liquid storage tank is automatically discharged and transmitted to the first waste liquid storage tank when the level of such liquid reaches a predetermined height or level within the second waste liquid storage tank.
    Type: Grant
    Filed: November 23, 1987
    Date of Patent: January 31, 1989
    Assignee: Cross American Corporation
    Inventor: Edward R. Valentine
  • 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: 4766637
    Abstract: A wet vacuum apparatus which includes a vacuum head which connects through a flexible hose to a pump. The outlet of the pump connects to a mounting plate with this mounting plate to be installed between a conventional toilet and the floor of a building. The waste material, either dry or wet, is to be discharged directly into the sewage plumbing of the building.
    Type: Grant
    Filed: January 15, 1988
    Date of Patent: August 30, 1988
    Inventor: James Winnicki
  • Patent number: 4754519
    Abstract: An improved coin operated vacuum cleaner canister with coin mechanism is disclosed. A blank having a polygonal or rectangular opening is rolled into a canister sidewall. A frame comprising a plurality of straps defining a polygon with an open side is mounted within the opening in the sidewall with the frame depending from the opening into the interior of the canister. A coid mechanism enclosure is detachably mounted to said frame such that a coin mechanism and coin container are receivable within the enclosure. The enclosure includes a flange which surrounds the opening of the enclosure and overlies the sidewall surrounding the opening in the sidewall. The flange is curved generally codiametrically to the sidewall. An alternative embodiment provides a coin duct disposed within the canister for passage of coins handled by the coin mechanism from the coin mechanism into a vault mounted in the base on which the vacuum cleaner is mounted.
    Type: Grant
    Filed: June 29, 1987
    Date of Patent: July 5, 1988
    Assignee: D.A.D. Manufacturing Co., Inc.
    Inventors: David C. Duran, John P. Casey, James G. Marion, M. Allen McGrew
  • Patent number: 4729147
    Abstract: A portable, self-contained pet grooming and flea removing device which includes a vacuum device for grooming, removing loose hair, dirt, dandruff and the like, which are removed through interchangeable grooming devices such as a comb, brush or the like and through a flexible hose into a disposable vacuum cleaner-type bag. In addition, the vacuum hose may be easily and quickly provided with a fitting in the form of a nozzle and the hose associated with a different fitting in the vacuum device so that a flea annihilator in the form of an electric grid is placed in operation by manipulation of a power switch so that by "peeling back" the animal's hair, location of flea infestation is easily made so that the nozzle can be placed immediately over the flea so that it is moved through the hose by vacuum and passed through the electrically charged grid thereby killing the flea which is then deposited into the disposable vacuum cleaner-type bag.
    Type: Grant
    Filed: September 12, 1986
    Date of Patent: March 8, 1988
    Inventor: Joseph M. Armbruster
  • Patent number: 4706326
    Abstract: A dual mode hair vacuum and dryer unit includes a cabinet with separate upper and lower compartments. An air pump in the cabinet has its suction inlet in the lower compartment and pressure outlet in the upper compartment for creating airflow through the air pump from the lower to the upper compartment. An air filter is disposed across the suction inlet of the air pump. A vacuum attachment connects to an air inlet nozzle on the cabinet for communicating vacuum airflow from a vacuum nozzle to the suction inlet of the air pump, via the lower compartment, which entrains hair cuttings in the vacuum airflow. A dryer attachment connects to an air outlet nozzle on the cabinet for communicating positive pressure airflow from the pressure outlet of the air pump to a drying nozzle, via the upper compartment, to dry hair.
    Type: Grant
    Filed: August 22, 1986
    Date of Patent: November 17, 1987
    Assignee: M.D.C. Romani, Inc.
    Inventor: R. Marlene Romani
  • Patent number: 4645150
    Abstract: An inlet wall mounted valve device for a central vacuum system is disclosed as having back and front plates arranged on either side of a wall to which the valve device is to be mounted. The back plate, composed of flexible metallic material, is adapted to be compressed and pushed through an opening in the wall having a smaller dimension than the width of the back plate so that the back plate will assume its normal relaxed condition behind the wall and extend beyond side edges of the opening. Fastening devices, such as screws, connecting the front plate to the back plate serve to draw each plate toward the other and thereby attach the valve device to the wall.
    Type: Grant
    Filed: December 30, 1985
    Date of Patent: February 24, 1987
    Assignee: Fasco Industries, Inc.
    Inventor: F. Warren Taylor
  • Patent number: 4641392
    Abstract: The invention relates to a multipurpose cleaning and transportation system. The system comprises a vacuum generating device and a liquid collecting container (10) which by a main pipe system (15) is connected to normally closed sockets (24). Dust cleaning tools (26, 27) can be connected to the sockets in order to create a passage from the tool to the main pipe system. The said pipe system is via a pipe (31) connected to a liquid absorbing hand tool (32) which is placed at a kitchen sink or the like for taking up liquid, crumbs and the like. It can also be connected to one or several liquid-supply units, for instance sanitary equipments (17).
    Type: Grant
    Filed: August 5, 1985
    Date of Patent: February 10, 1987
    Assignee: Oy Wartsila Ab
    Inventor: Camiel Huisma
  • 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: 4607413
    Abstract: A work position or station including a suctioning device incorporating a suctioning opening for the aspiration of suctionable material which is produced during the processing of workpieces, and a protective plate which guides the suctionable material into the suctioning opening. The protective plate concurrently screens the working personnel carrying out the processing, in particular the head of the person, against the incident suctionable material. The protective plate which is carried by a special mounting support can be moved upwardly prior to the implementing of work without the formation of suctionable material, upwardly away from the suctioning opening in a simple manner into a non-hindering inoperative position.
    Type: Grant
    Filed: November 1, 1984
    Date of Patent: August 26, 1986
    Assignee: Kaltenbach & Voight GmbH & Co.
    Inventors: Helmut Schmidt, Anton Bodenmiller, Alfred Straka
  • Patent number: 4596060
    Abstract: A worktable, in particular a dental laboratory workbench which includes a work block arranged at front side of the table, and a vacuuming device forming a unitary structure with the work block for vacuumable material or waste which is obtained during the processing or finishing of workpieces.
    Type: Grant
    Filed: July 27, 1984
    Date of Patent: June 24, 1986
    Assignee: Kaltenbach & Voigt GmbH & Co.
    Inventors: Helmut Schmidt, Anton Bodenmiller, Alfred Straka
  • Patent number: 4587687
    Abstract: This invention relates to a mounting piece for the suction hose of a central vacuum cleaning system. In order to prevent objects that could possibly clog the suction piping from getting into the piping, there is on the inner wall (2) of the mounting piece (1) at least one rib (3) pointing inwards from the inner wall which prevents objects that would clog the suction piping (5) from getting into the suction piping (5). The surface of the rib (3) or ribs (3) that meet the flow are preferably inclined towards the central axis of the mounting piece.
    Type: Grant
    Filed: November 2, 1984
    Date of Patent: May 13, 1986
    Assignee: Allaway Oy
    Inventors: Alpo Ikonen, Raimo Lehtolahti, Reino Mustalampi
  • Patent number: 4580309
    Abstract: A compact, self-contained central vacuum cleaning machine has expandable vacuum suction and pressure capacities and variable vacuum suction. The machine performs a multiplicity of cleaning operations including dry vacuuming, wet vacuuming, hydro-extraction vacuuming and pressure washing.
    Type: Grant
    Filed: June 8, 1984
    Date of Patent: April 8, 1986
    Assignee: Rug Doctor, Inc.
    Inventor: Stanley D. Ogden
  • Patent number: 4551879
    Abstract: An entrance dust arrester is provided which vacuums the area directly under a door as the door is opened and closed, thereby preventing the tracking of debris into a clean area. A housing with downward facing vacuum apertures may be attached to the outside of the door or may be built into the door itself. A system of air directing vanes distributes the vacuum evenly. The vacuum source itself may be integral to the housing or may be external and connected by a moveable coupling. The vacuum source is turned on and off by either or magnetic reed switch or a pressure operated switch.
    Type: Grant
    Filed: October 15, 1984
    Date of Patent: November 12, 1985
    Inventor: Isaac Ray
  • Patent number: 4540202
    Abstract: This suction arm for gaseous fluids comprises a tubular articulated conduit consisting of at least one flexible sleeve (5) disposed between two rigid tubes (8). These tubes (8) are interconnected at either end of the flexible intermediate sleeve (5) by mechanical holding means (9) comprising each at least one pair of first and second members (10a, 10b) pivotally interconnected centrally of the flexible sleeve and rigidly assembled in side by side relationship by distance-pieces (15) under the control of a spiral return spring (13) and detent-positioning means (16, 17, 18), whereby the two rigid tubes (8, 8) are constantly urged to their relative angular position matching that of the ends of the intermediate flexible sleeve (5).
    Type: Grant
    Filed: February 8, 1982
    Date of Patent: September 10, 1985
    Inventors: Andre Amphoux, Jean M. Carbon
  • Patent number: 4532670
    Abstract: A vacuum booster and filter, including a manifold having at least two nipples which connect, respectively, to a vacuum source and at least one vacuum utilization device. The latter may either be a vacuum-operated holding fixture or a vacuum-operated desoldering instrument. The booster itself includes a manifold with two or four nipples which may either extend laterally or upwardly. The booster also includes a hollow cylinder connected to the manifold by a narrower neck portion. A piston is disposed in the cylinder which is urged away from the manifold by a compression spring. Hence, when the vacuum pump is operating to pull out air from the vacuum utilization device, the air is partially stored in the vacuum booster and tends to urge the piston downwardly. The air that can be stored in the booster depends on the area of the booster multiplied by the spring force. The compressible filter of cylindrical form may be housed in the manifold and may consist of two parts, one of which acts as a spring.
    Type: Grant
    Filed: January 31, 1983
    Date of Patent: August 6, 1985
    Inventor: William S. Fortune
  • Patent number: 4473409
    Abstract: A pair of flexible sealing members connected to a housing adjacent an intake chamber to engage and form a seal with interior portions of a door opening of a vehicle is provided. This air-sealed engagement permits an orderly and efficient flow of air between the interior portions of the vehicle and the intake chamber when air is evacuated from the housing. The resulting air flow through the interior of the vehicle removes dust and debris therefrom.
    Type: Grant
    Filed: June 2, 1982
    Date of Patent: September 25, 1984
    Inventor: Jackie D. Greeley
  • Patent number: 4391017
    Abstract: Flammable fluid or other incendiary matter (204) contained aboard an aircraft may be removed from the aircraft's interior by means of a special purpose disposal device that utilizes the differential in pressure between the pressurized interior of a modern aircraft and the external airstream. The device itself comprises a main intake nozzle, an intermediate wand portion which is connected to the intake nozzle and in fluid communication therewith and a flexible hose provided with a quick connect fitting for connecting the device to a suitable outlet fitting in the skin of the aircraft. Preferably, several such outlet fittings are provided so that the device can be utilized at different locations within the aircraft's interior without requiring an excessively long hose. Each of the outlets is normally closed by means of a disk-shaped plug held in a flush position with respect to the aircraft's outer surface by means of a removable retainer ring.
    Type: Grant
    Filed: December 28, 1981
    Date of Patent: July 5, 1983
    Assignee: Lockheed Corporation
    Inventor: Wilhelm A. Bruensicke
  • Patent number: 4366594
    Abstract: A vacuum-operated debris collector including a mobile frame and a collection receptacle and impeller unit assembly mounted on the frame. An upstanding stack assembly has its lower end connected through an access chamber to the inlet of the impeller unit. A suction head connects through a hose to a swiveled upper portion of the stack assembly. The outlet of the impeller unit discharges into the receptacle.
    Type: Grant
    Filed: March 27, 1981
    Date of Patent: January 4, 1983
    Inventor: H. B. Hyams
  • Patent number: 4355433
    Abstract: An apparatus for cleaning root crops while still in the field whereby the harvested crops are subjected to jet blasts of a cleaning agent without excessive dust generation.
    Type: Grant
    Filed: September 18, 1980
    Date of Patent: October 26, 1982
    Inventor: Martin Dietrich
  • Patent number: 4336427
    Abstract: An outlet assembly for a vacuum cleaning system includes a face plate for mounting on the exterior surface of a building wall, an annular inlet bushing or socket open from the face plate and extending through the building wall and a back plate positioned adjacent the interior surface of the building wall and opposite the face plate and with the inlet bushing extending therethrough. The inlet bushing connects to a vacuum conduit from the vacuum cleaning system for flow of air therethrough. A seal fitting member is positioned generally between the building wall and the back plate and sleeved about the inlet bushing. A resilient seal therein engages the outer surface of the inlet bushing in air-tight relationship and a flange portion engages with the open end of the vacuum conduit and secures the vacuum conduit to the inlet bushing.
    Type: Grant
    Filed: October 3, 1980
    Date of Patent: June 22, 1982
    Assignee: Vacu-Maid, Inc.
    Inventor: Winston S. Lindsay
  • Patent number: 4225272
    Abstract: An apparatus for controlling the activation and deactivation of a vacuum assembly which is connected to a conduit system such as a suction conveyance system or a central cleaning system for maintaining a partial vacuum in the conduit system which has suction sockets which may be opened for coupling in vacuum-driven appliances and which are preferably self-closing when the vacuum-driven assemblies are disconnected is provided with a first sensing device and a second sensing device. The first sensing device is operative to sense that state in which all of the suction sockets are closed, in order to emit a stop signal to the vacuum assembly. The second sensing device is operative to sense the opening of one or more suction sockets, in order to emit a start signal to the vacuum assembly.
    Type: Grant
    Filed: February 8, 1979
    Date of Patent: September 30, 1980
    Inventor: Kaj Palmovist
  • Patent number: 4202070
    Abstract: A car wash vacuum cleaner and the method of making same is disclosed. The car wash vacuum cleaner comprises an inner shell means. A plurality of vacuum motors are secured within the inner shell means and adapted to provide a suction means therein. A monolithic concrete outer housing surrounds the inner shell means and encloses the top and bottom thereon. A plurality of door means disposed on the concrete housing provides an opening within the housing and inner shell means to both provide a vent means for the vacuum motor and a means for removing dirt particles or the like from within the inner shell. A suction tube fitting extends through the concrete housing and inner shell and is adapted to attach to a suction tube. Dirt particles or the like are drawn through the tube and tube opening into the inner shell when the motors are energized.
    Type: Grant
    Filed: October 26, 1978
    Date of Patent: May 13, 1980
    Inventor: Robert G. Harfst
  • Patent number: 4202072
    Abstract: A self-service, wet-vacuum cleaning machine for carpets, upholstery, and the like, utilizes a hand-held tool attached to both a vacuum hose and a hot water hose. A motor driven pump operates for a metered time to provide hot water under a high pressure in a direction that closes a valve in the hand tool to prevent spraying until it is called for by manually unseating the valve, thus allowing hot water to be sprayed on an area to be cleaned by wet-vacuuming. A spring in the valve housing exerts a force against the valve in a direction to unseat it, but not with sufficient force to do so against the hot water pressure. When the hot water pump is turned off, cold water under line pressure enters the hot-water hose through a T-fitting at a controlled low rate and passes through the valve now opened by the spring. This flow at a low rate prevents freezing in the hot water hose or spray valve.
    Type: Grant
    Filed: January 18, 1979
    Date of Patent: May 13, 1980
    Inventor: Albert S. Gonzales
  • Patent number: 4200950
    Abstract: A system for cleaning large areas such as baseball parks and football stadiums and picnic areas and zoos, including a truck having a chassis, a refuse compactor mounted on the chassis for packing refuse into a small volume therein, a blower mounted on said chassis and constructed and arranged to draw air and entrained refuse into an inlet for the blower and to blow the refuse from the blower into the compactor, a substantial length of flexible hose having one end thereof connected to the inlet to the blower and a pickup nozzle connected to the other end of said hose, the pickup nozzle having an inlet end with an opening therein substantially greater in area than the internal area of the hose, the blower creating a stream of air entering the inlet end of the nozzle and carrying refuse therewith and along the hose and through the blower and into the compactor thereby rapidly to clean refuse from large areas and to compact the refuse into a small volume in the compactor.
    Type: Grant
    Filed: April 21, 1978
    Date of Patent: May 6, 1980
    Inventor: Roger D. Coverley
  • Patent number: 4194262
    Abstract: A vacuum extraction cleaning machine adapted for coin operated applications. The cleaning machine comprises a remote cleaning tool for spraying cleaning solution upon an area to be cleaned and for extracting dirty cleaning solution through vacuum suction. Means located within the machine and coupled to the cleaning tool deliver vacuum and cleaning solution thereto. Used or dirty cleaning solution extracted by the tool is recovered and temporarily stored within a vacuum tank. Structure associated with the vacuum tank will automatically drain same when vacuum ceases at the end of the machine cycle. Injector valve means are provided to mix cleaning chemical with incoming fresh water to yield the necessary cleaning solution, and means are provided for coupling the machine to an external pressurized water source to facilitate operation.
    Type: Grant
    Filed: September 29, 1978
    Date of Patent: March 25, 1980
    Assignee: Rug Specialist Inc.
    Inventors: Bill G. Finley, Terry L. Finley
  • Patent number: 4168597
    Abstract: A method and apparatus for harvesting and processing head lettuce wherein the lettuce is shredded immediately upon harvesting and before deterioration occurs. The shredded lettuce is retained in an insulated or refrigerated enclosure and then promptly transported to a mobile processing trailer where it is further cleaned and chilled and finally packaged for shipment. The practice of the method and apparatus permits the lettuce to be on its way to the consumer on the same day that it is harvested from the field.A method and apparatus for simultaneously chilling, washing and adding preservatives to the chilled lettuce in a continuous fashion. A mobile enclosure embodying the apparatus and adapted to perform the method wherein the lettuce is maintained at a reduced temperature throughout all stages of processing.
    Type: Grant
    Filed: February 27, 1978
    Date of Patent: September 25, 1979
    Assignee: Bud Antle, Inc.
    Inventor: David W. Cayton
  • Patent number: 3994042
    Abstract: A vacuum unit for removal of hair as it is cut by barbers and beauticians, the vacuum unit being adapted to function in combination with a barber's or beautician's chair and comprises a source of vacuum power mounted to the base of the chair capable of being operated at the election of the operator, a flexible suction hose connected to the vacuum at one end and to a bracket mounted vacuum tube at the other end. A suction nozzle is pivotally mounted upon the vacuum tube and the vacuum tube and nozzle may be jointly translated along a track to any position immediately below the back side of the hair line of the person whose hair is being cut. Thus, the suction nozzle by swivel action in respect to the vacuum tube and by translation with the vacuum tube along the back of the patient to any location along the back between the ears of the customer accommodates during operation immediate pick up and disposition of cut hair in an economical, sanitary and highly efficient manner.
    Type: Grant
    Filed: August 29, 1974
    Date of Patent: November 30, 1976
    Inventor: Mary T. Zakis
  • Patent number: 3974541
    Abstract: A self-contained portable apparatus for cleaning a floor cover, such as a carpet. The apparatus comprises vacuum chambers; electric motor driven vacuum creating mechanisms; vacuum nozzles operatively associated with the vacuum chambers; a spray bar and nozzles operatively connected with a source of water; a source of emulsifying agent; a siphon device for extracting emulsifying agent from its source and introducing it into the water flowing to the spray nozzles; a heating element for heating the water as it flows to the spray bar; and appropriate valving and plumbing; all of which are included within a single housing. In addition, the housing includes a roller so that the apparatus may be easily rolled over the floor cover to be cleaned. There is also included a hand tool operatively connected with one of the vacuum chambers of the apparatus for cleaning the floor in hard to get at places too small or inconvenient to reach with the self-contained floor cover cleaning apparatus.
    Type: Grant
    Filed: November 1, 1973
    Date of Patent: August 17, 1976
    Inventors: Donahue B. Silvis, Edward A. Vargas
  • Patent number: D262886
    Type: Grant
    Filed: April 6, 1979
    Date of Patent: February 2, 1982
    Assignee: Ryosei Co., Ltd.
    Inventor: Tadashi Yoshimura