Abstract:
A roller drum assembly includes a roller drum for rotationally engaging a surface, a frame connected to the roller drum for manually controlling movement of the assembly, a tank mounted on the frame for retaining a liquid, and conduits mounted on the frame for directing the liquid from the tank to the roller drum, and further includes a wand mounted on the frame and in communication with the tank, for ejecting the liquid onto selected surfaces spaced from the roller drum assembly.

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application claims priority from U.S. Provisional Patent Application No. 61/133,160, filed Jun. 26, 2008, in the name of Russel H. Sampson. 
    
    
     BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     This invention is directed to a hand operated roller drum assembly of the type typically used for rolling asphalt or concrete or stone dust passageways, parking lots, and the like. 
     2. Description of the Prior Art 
     It is known to pack and smooth passageway surfaces of granular material, such as asphalt, concrete, stone dust and the like, to provide a packed, smooth and/or level surface. The tool usually used for such endeavors comprises a roller drum rotatably attached at each end thereof to a frame member which usually includes a handle portion by which the assembly may be grasped and maneuvered by an operator. 
     In the course of using rollers of the prior art, clumps of material being packed and leveled tend to cling to the surface of the roller and can gouge holes or depressions in an otherwise smooth passageway surface. Accordingly, it is necessary to periodically stop and wash off the surface of the roller, or have a second roller worker apply water and/or oil to the surface of the roller to carry away accumulated material. 
     It is customary for either the roller operator, or a second worker, to carry a jug, typically of diesel oil, and periodically pour the oil onto the roller to cleanse the roller. 
     A further problem which operates against expeditious rolling of a surface is that of delivering the matter of the surface, i.e. asphalt, and the like, to the site of the surface being rolled. The surface material typically is delivered to the site by a truck equipped with shuttle chutes which channel the surfacing material from the truck into a wheelbarrow, or other receptacle, which is used to transport the material to the area to be rolled. Surfacing material tends to stick to the surfaces of the chutes and the wheelbarrows and/or receptacles. Usually, a worker must physically urge the material down the chute. 
     A still further problem usually encountered in such operations is the periodic need to apply liquid to a particular limited area of the passageway surface, or other surface, beyond that which is applied by the roller. 
     There is thus a need for a roller assembly having facility for packing and smoothing paving material, and further for applying water or oil and/or other liquid to the roller for discouraging accumulation thereon of the paving material and for washing away any material on the roller well prior to accumulation of substantial lumps of the material. 
     There is further a need for having at hand, in the vicinity of the roller assembly, means for expediting the delivery of the surfacing material from a truck delivering such material to the point of use. 
     There is still further a need for having at hand, in the vicinity of the roller assembly, means for “spot” application of the liquid. 
     SUMMARY OF THE INVENTION 
     An object of the invention is, therefore, to provide a roller drum assembly for packing, smoothing and leveling passageway surface material and having facility for washing the surface of the roller during the roller operation, without the need of an independent wetting and washing means or person. That is, one object of the invention is to provide means on the roller assembly for applying a selected liquid medium to the roller while the roller assembly is in operation to continuously wash the surface of the roller. 
     A further object of the invention is to provide means on the roller assembly for applying the selected liquid medium to conveyer surfaces which are contacted by the surface material while in transit from a delivery vehicle to the roller assembly, the means being operable by the roller assembly operator. 
     A still further object of the invention is to provide means on the roller assembly for spot application of the liquid medium to specific areas requiring the liquid medium. 
     With the above and other objects in view, a feature of the present invention is the provision of a roller drum assembly, the assembly including a roller drum for rotatably engaging a surface to be packed and/or leveled, and a frame connected to the roller drum for manually controlling movement of the roller drum assembly. A tank is mounted on the frame and is adapted to contain a liquid therein. Conduits are mounted on the frame and are adapted to convey the liquid from the tank to the surface of the roller drum to cleanse the surface of the roller drum while the roller drum is in operation. 
     A further feature of the present invention is the provision of a roller drum assembly including a roller drum for rotatably engaging a surface material to be packed and/or leveled, and a frame connected to the roller drum for manually controlling movement of the roller drum on the surface. A tank is mounted on the frame and is adapted to contain a liquid therein. A wand is mounted on the frame and is in communication with the tank by way of a flexible hose extending therebetween. The wand is removable from the frame and is moveable to a location spaced from the frame by a distance generally equal to the length of the hose. The wand is provided with a trigger mechanism, the operation of which enables liquid in the tank to be ejected from the hose and onto a coveyer surface adapted to be in contact with the surface material prior to the rolling thereof by the roller drum. 
     A still further feature of the invention is the provision of the aforesaid wand adapted for spot application of the liquid onto selected specific areas. 
     A still further feature of the invention is in the provision of a roller drum assembly having the above two features therein, i.e., means on the roller assembly for applying a liquid to the roller drum surface for cleansing the surface of the roller drum, and means on the roller assembly for directing the liquid onto other surfaces adapted to come in contact with the surface material prior to the rolling of the surface material and onto specific selected areas proximate the assembly. 
     The above and other features of the invention, including various novel details of construction and combinations of parts, will now be more particularly described with reference to the accompanying drawings and pointed out in the claims. It will be understood that the particular device embodying the invention is shown by way of illustration only and not as a limitation of the invention. The principles and features of this invention may be employed in various and numerous embodiments without departing from the scope of the invention. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Reference is made to the accompanying drawings in which is shown an illustrative embodiment of the invention, from which its novel features and advantages will be apparent. 
       In the drawings: 
         FIG. 1  is a front elevational view of one form of roller drum assembly illustrative of an embodiment of the invention; 
         FIG. 2  is a rear elevational view thereof; 
         FIG. 3  is a right side elevational view thereof, showing a wand component housed in the assembly; 
         FIG. 4  is a further right side elevational view thereof with portions cut away to show internal components; 
         FIG. 5  is a left side elevational view thereof, showing the wand component of the assembly removed from the housing therefor; and 
         FIG. 6  is a further left side elevational view thereof with portions cut away to show internal components. 
     
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Referring to the drawings, it will be seen that an illustrative roller drum assembly includes a roller drum  10  for engaging a surface to be packed and/or leveled, or smoothed. Passageways, such as streets, driveways, pedestrian walks, parking lots, runways, ramps, speed bumps, and the like, are the most common passageway surfaces requiring some packing or compacting, as well as leveling and/or smoothing. 
     A frame  12  is connected to the roller drum  10  such that the roller drum can rotate. The frame  12  includes a handle portion  14  adapted to be gripped by an operator and used to manually control movements of the roller drum. The frame  12  may be configured as shown in the drawings, with the handle of a “T” shaped configuration, or may be a “U” shaped member, well known in combination with pusher-type wheel devices. 
     A tank  16  is mounted on the frame  12  and is adapted to contain a selected liquid, usually water or oil, such as diesel oil. 
     Mounted on the frame  12  is a pump  18  ( FIGS. 4 and 6 ) disposed within a housing  20  joined to the tank  16 . The pump  18  is provided with a grip member  22  for manually operating the pump. The interior of the housing  20  is in communication with the interior of the tank  16  by way of a one-way valve  23 , such that the pump  18  is adapted to pressurize the tank  16 , causing liquid in the tank to move into an inlet tube  24  ( FIGS. 3 and 6 ) disposed in the tank and in communication with a drum sprayer feed tube  26 . 
     The drum sprayer feed tube  26  connects with a spray pipe  34  which extends widthwise substantially throughout the length of the roller drum  10  and is provided with a plurality of spray nozzles  28  thereon. As shown in  FIGS. 3-6 , the spray nozzles  28  are adapted to project a spray of liquid onto the surface of the drum  10  and also onto a sponge-like strip  30  which is fixed to the bottom of the tank  16  by a bracket  38  and engages the surface of the roller drum  10 . 
     The strip  30  serves to spread the liquid sprayed thereon over the surface of the drum  10  and to wipe the surface of the drum free of any adhered debris. 
     In operation of the assembly, an operator uses the handle  14  to move the roller drum  10  along a surface being treated. The operator periodically pumps the grip member  22  to pressurize the tank  16 , causing liquid in the tank to enter the inlet tube  24  and progress through the drum sprayer feed tube  26  to engage a valve  36 . The operator opens the valve  36  and the liquid proceeds through a spray tube  32  mounted on the frame  12 , and to a spray pipe  34  which extends lengthwise of the roller drum and thence to the spray nozzles  28  which spray the liquid onto the drum surface and onto the sponge-like strip  30  for cleansing of the drum surface ( FIG. 3 ). 
     The tank inlet tube  24  is in further communication with a wand hose  40  connected to a wand  42  disposed in a wand housing  44  ( FIGS. 4 and 6 ). 
     In the event that a spot application of liquid is required, the operator withdraws the wand  42  from the wand housing  44  and opens a wand valve  46  which may be a trigger-type or push button valve, to provide for flow of the liquid through the wand  42 , to a spray nozzle  48  ( FIG. 6 ) fixed to a distal end of the wand  42  and operable to spray the liquid onto a limited area under the direction of the operator. 
     As noted above, the limited area of concern is often the chutes through which paving material flows from a delivery truck. Other areas of concern are the flat footwear (tamper shoes) worn by personnel working on passageways, and the like, and wheelbarrows, and the like, in which the material is transported from the truck to the paving area. 
     Pivotally fixed to the frame  12  is a kick stand  50  which, in operative position as shown in  FIGS. 3-6 , serves to support the roller assembly in an upright disposition. 
     While the roller drum assembly has been described in relation to packing or leveling a passageway, parking lot, or the like, wherein the surface material is likely to be asphalt, concrete, stone dust, or gravel, it will be apparent that the roller drum assembly described herein finds utility in other areas of concern, such as lawn care, particularly large areas, as in parks and athletic fields, in which case the tank is typically filled with pesticide or fertilizer and the roller imparts a film of such liquids onto the grass, while the wand can be used for more concentrated applications, as well as for elevated plants and/or potted plants. 
     There is thus provided a roller drum assembly which provides savings in cost, time and personnel in packing and/or leveling passageways, and is further useful in other pursuits, such as lawn and plant care. 
     It will be understood that many additional changes in the details, materials, steps and arrangement of parts, which have been herein described and illustrated in order to explain the nature of the invention, may be made by those skilled in the art within the principles and scope of the invention as expressed in the appended claims.