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The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
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| Number | Title | Issue Date |
| 7430784 | Vacuum-cleaning apparatus for a stable A vacuum-cleaning apparatus for a stable, the apparatus adapted for being towed behind a powered vehicle having a power take off unit and including a two-wheel trailer; a tank with an air-tight cavity mounted on the trailer; a hydraulic pump powered by the power tak... | 10/07/2008 |
| 7370543 | Air-sampling device and method of use The present disclosure concerns embodiments of a sampling apparatus that utilizes one or more cyclone separators to collect airborne particles from the atmosphere. In one representative embodiment, the sampling apparatus includes a collection-vessel retaining member... | 05/13/2008 |
| 7341612 | Disposable vacuum bags A disposable open bag for a power tool such as a Shop-Vac cleaner has a mounting plate with an opening for receiving debris from the intake of the power tool. The mounting plate is also provided with a vent opening(s), e.g., to prevent the bag from closing in on the... | 03/11/2008 |
| 7281296 | Debris collection systems, vehicles, and methods The invention provides debris collection devices that include a debris contacting mechanism, a debris transport mechanism that is configured to receive debris moved by the debris contacting mechanism at an inlet and move such debris towards a debris storage compartm... | 10/16/2007 |
| 7175364 | Suction device and suction method for the disposal of dust in milling machines Disclosed is an automotive milling machine for machining ground surfaces, comprising an engine frame (2), a movable milling drum (8) which is mounted on the engine frame (2), at least one conveying device (14, 18) which is arranged on the... | 02/13/2007 |
| 7171725 | Vacuum cleaner device with a screw conveyor A device for a vacuum cleaner comprising a particle separator, which is provided with an inlet (11) for dust laden air, an outlet (16) for the separated particles, and an outlet (14) for cleaned air that is connected to a vacuum source (14 | 02/06/2007 |
| 7124463 | Conveyor lip for motorized street sweeper A street sweeper system is used typically in a motorized vehicle. The sweeper utilizes a cylindrical brush rotating about an axis that is typically perpendicular to the vehicle's direction of motion. A conveyor belt catches debris thrown forwards and upward by the b... | 10/24/2006 |
| 7086118 | Street sweeper with vacuumized dust control A street sweeper with vacuumized dust control where a rotary broom chamber surrounds a rotary broom. The rotary broom chamber connects by a conveyor housing containing a conveyor mechanism to a hopper having a powered fan and a filter. A vacuum or low pressure is cr... | 08/08/2006 |
| 7024719 | Sweeper drag shoe A sweeper drag shoe used with a rotary broom in sweeping, whereby escaping debris from under a contact skid is recaptured. The sweeper drag shoe contains a deflection plate that redirects bristle tip movement inwardly to allow the broom to recapture debris which esc... | 04/11/2006 |
| 6966097 | Street sweeper with dust control Street sweeper having dust control from two or more cleaning heads with one air source where one fan provides vacuum for a centrally located rotating broom which is surrounded by a vacuumized chamber and for a gutter broom which is surrounded by a vacuumized chamber... | 11/22/2005 |
| 6964082 | Waste recycle vacuum cleaner for generating power Accordingly, the primary object of the present invention is to provide a waste recycle vacuum cleaner for generating power which comprises a flow guide seat, a flow guide tube, at least one blade set and at least one driving device. By above components, exhausted wa... | 11/15/2005 |
| 6959466 | Power management system for street sweeper A power management system for a surface maintenance machine, such as a street sweeper is disclosed. The system includes a variable speed engine for transporting the surface maintenance machine, a hydraulic pump powered by the engine, a vacuum fan motor powered by th... | 11/01/2005 |
| 6951045 | Vacuum cleaner having hose detachable at nozzle An upright vacuum cleaner is provided. The upright vacuum cleaner includes a nozzle base section including a main suction opening formed in an underside thereof. An upright housing section is hingedly connected with the nozzle base section. The housing section inclu... | 10/04/2005 |
| 6923102 | Washing device A washing installation includes a first washer (3) for washing slices of root vegetable with water, a second washer in the form of a rotating pipe (4) supplied with water at an infeed end for the slices of root vegetable washed during slicing, and a th... | 08/02/2005 |
| 6902594 | Industrial dust-collector An industrial dust-collector is provided with an air blower in the bottom of the base. An air-inlet line and an air-out line are provided at the front of the air blower. A cover is provided on the top of the base, a sucking pipe is provided at the top of the cover, ... | 06/07/2005 |
| 6854157 | Debris collection systems and vehicles The invention provides debris collection devices that include a debris contacting mechanism, a debris transport mechanism that is configured to receive debris moved by the debris contacting mechanism at an inlet and move such debris towards a debris storage compartm... | 02/15/2005 |
| 6449800 | Blower apparatus with brush for scavenging surface A blower head, comprising a frame, a brush rotatably supported by the frame, a sweeper drive adapted for rotating said brush to sweep a surface, and a blower unit adapted for removing swept-up particles away from the surface. The frame includes a mouth po... | 09/17/2002 |
| 6195837 | Debris suctioning and separating apparatus for use in a surface sweeping vehicle having a mechanical debris elevator A debris suctioning and separating apparatus for use in a surface sweeping vehicle having an elongate cylindrically-shaped rotating sweeping broom, a debris receiving and retaining hopper, and a debris conveying mechanism to receive debris from said rotat... | 03/06/2001 |
| 6195836 | Mechanical surface cleaning vehicle for fine particulate removal A mechanical surface sweeping vehicle has a cylindrically-shaped rotating sweeping broom to propel forwardly debris disposed on a contacted portion of a surface being cleaned, thereby creating a forwardly propelled stream of debris. A mechanical debris el... | 03/06/2001 |
| 6185782 | Rain-gutter cleaning system A rain-gutter cleaning system has an agitator head that is mounted to the top end of a long suction tube and pole and supported aloft by them. A vacuum pump on the ground is connected to bring rain-gutter debris down the suction tube and into a collection... | 02/13/2001 |
| 6146434 | Cyclonic dirt cup assembly A cyclonic dirt cup assembly for a vacuum cleaner has a generally conical truncated cone positioned within a dirt cup of the vacuum cleaner. The dirt cup has a wall formed with an air inlet opening for receiving a stream of dirt-laden air within the dirt ... | 11/14/2000 |
| 5902414 | Apparatus and method for renovating playing surfaces An apparatus (5) for renovating synthetic grass playing surfaces (1) which include a layer of particulate material. The apparatus (5) comprises a plenum chamber (20) which directs a fast moving jet of air against the particulate so as to dislodge it and d... | 05/11/1999 |
| 5784756 | Debris cleaner with compound auger and vacuum pickup A debris cleaning device is equipped with a compound auger which has a rigid inner auger portion with auger fighting and a plurality of compliant combing attachments connected to the edge of the fighting. Instead of the compound auger, a helical rotary br... | 07/28/1998 |
| 5697293 | Waste suction and storage device The waste suction and storage device includes a box (3) which, on the one hand, comprises waste storage means and at least one separation compartment (6) whose lower part is open and connects with the waste storage means and which, on the other hand, is e... | 12/16/1997 |
| 5540001 | Device for removing dust from nuclear fuel pellets The invention concerns a device for removing dust from nuclear fuel pellets. The object of the invention is to embody a device able to simply and effectively remove dust from pellets coated with dust, including non-electrically charged dust. This aim is o... | 07/30/1996 |
| 5428864 | Refuse collecting apparatus A refuse collecting machine in which a collection hose sucks refuse into a delivery chamber containing a rotating perforated wheel for separating lighter weight refuse from the air flow to a fan, and the refuse then drops into a rotary compression screw t... | 07/04/1995 |
| 5249332 | Pavement sweeper An apparatus for automated sweeping of debris from pavement surfaces is provided with a rigid housing, paired roller brooms rotatably mounted transversely within the housing parallel in relation to each other such that the right end of the forward roller ... | 10/05/1993 |
| 5010620 | Stall and pasture vacuum machine The present invention is directed to a stall and pasture vacuum machine which comprises a trailer frame supported by an axle and wheels, a receptacle which is pivoted at one end of the frame and at the other end of the frame is an extension which supports... | 04/30/1991 |
| 4972541 | Feather duster having a fan assembly A feather duster includes a fan assembly and a dust catching assembly and a turbulence-inducing gap that ensures that dust-laden air will be forced to undergo at least one change of flow direction before entering the dust catching assembly.... | 11/27/1990 |
| 4930530 | Leaf loading method In a leaf loading method, leaves are picked up from the ground by operating a rotary beater and a rotary broom. The leaves are then delivered between the beater and the broom by rotating the beater and the broom in opposite directions. Next, the leaves ar... | 06/05/1990 |
| 4914774 | Leaf loading machine for use with towing machine A leaf loading machine designed for use in combination with a towing vehicle includes a mobile frame with a tongue extending forwardly thereof for connection to the towing vehicle. The machine has a rotary beater and a rotary broom extending transversely ... | 04/10/1990 |
| 4884313 | Street sweeper machine with trash pick-up and transport capabilities A street sweeper machine is provided for picking up and transporting trash comprising a frame having a main longitudinal dimension and engaging from and rear wheels, a driver's cab, motor members, a trash bin, a roll brush located between said wheels and ... | 12/05/1989 |
| 4825495 | Leaf loading machine with cooperating shroud and housing A leaf loading machine has a rotary beater and a rotary broom extending transversely of a mobile frame. The broom is disposed rearwardly of and in tandem relation to the beater. The beater and the broom have lower sides thereof disposed adjacent the groun... | 05/02/1989 |
| 4819676 | Combination sweeping and scrubbing system and method This invention is concerned with a machine and/or system as well as a method of operation and an assembly whereby a sweeping unit may be quickly converted into a scrubbing unit and vice versa. The system is capable of operation either in a sweeping mode o... | 04/11/1989 |
| 4809380 | Leaf loading machine with counterrotating beater and broom A leaf loading machine has a rotary beater and a rotary broom on a mobile frame, both of which extend transversely of the frame. The broom is disposed rearwardly of and in tandem relation to the beater. Both the beater and the broom are disposed adjacent ... | 03/07/1989 |
| 4771504 | Leaf loading machine A leaf harvesting machine has an auxiliary rotary beater and main rotary pickup broom on a mobile frame which both extend transversely of the direction of travel of the frame. The main pickup broom is disposed rearwardly of and in tandem relation to the b... | 09/20/1988 |
| 4754521 | Street sweeper machine for trash collecting A machine with a frame supporting two side brushes downwardly, a center roller, and an auxiliary front brush movable on command in a crosswise direction to the frame, and upwardly a driver's cab, a trash container, a water tank and a trash conveyor. The w... | 07/05/1988 |
| 4741072 | Railroad track cleaner A railroad track cleaner of non-self-motivational character which comprises a frame carrying front and rear wheels for rail traverse. The frame contains a housing for a transversely disposed, rotatably mounted broom assembly in the forward portion thereof... | 05/03/1988 |
| 4561145 | Continuous sweep for road planing and milling machines An apparatus, to be incorporated into but not limited to a road planer, that would sweep, vacuum material not put onto the existing conveyor by the milling operation, as it now exists. This apparatus would route this material onto the existing conveyors i... | 12/31/1985 |
| 4457044 | Multiple flight elevator system A multiple flight elevator system is disclosed for use in a mobile sweeper in combination with a pick-up broom and a debris receiving hopper. The elevator features the combination of mechanical elevating means which moves heavy articles or bulky masses of... | 07/03/1984 |
