# Patent

## Title
Fire hydrant cleaning device

## Abstract

An apparatus for clearing around an associated stationary object includes a housing having a top wall, a side wall, and at least one opening extending through the side wall. At least one paddle member is mounted to and extends radially outward from an exterior surface of the housing. The paddle member is adapted to clear around the associated stationary object. The apparatus further includes a plurality of elongated cables mounted to a support that is selectively secured to an interior surface of the housing. The elongated cables are adapted to clean around the associated stationary object.

## Background
This application is a continuation-in-part of U.S. patent application Ser. No. 14/184,418 which was filed on Feb. 19, 2014 and is still pending. That application, in turn, was a continuation-in-part of U.S. patent application Ser. No. 13/894,905 which was filed on May 15, 2013 and is still pending and claims priority from Provisional Application Ser. No. 61/648,300 which was filed on May 17, 2012 and from Provisional Application Ser. No. 61/794,920 which was filed on Mar. 15, 2013. The subject matter of each of these applications is incorporated hereinto by reference in its entirety.


BACKGROUND
Fire hydrants or fire plugs are employed by nearly all municipalities. As with other infrastructure, fire hydrants need to be maintained. The intent of a fire hydrant maintenance program is to keep hydrants in a ready condition through flushing, inspection, lubricating, cleaning and painting. One of the more difficult aspects of a fire hydrant maintenance program is the process of cleaning the hydrant or plug. This is often accomplished by pressure washing or sandblasting the fire hydrant in order to remove dirt, grease and flaking paint from the outer surface of the hydrant. In order to protect the surroundings, a plastic shower cap may be used, along with a small tarp placed over the adjacent sidewalk or lawn. The cleaning process also requires a generator and an air compressor for the pressurized fluid or sand that is being applied to clean the hydrant not to mention a supply of the fluid or sand.
Another way of cleaning the fire hydrant is by a worker manually using a hand held wire brush to remove flaking paint, grease, dirt and the like from the outer surface of the accessible portion of the fire hydrant. As is easily recognized, such work is laborious and time consuming. A single worker is not able to clean very many hydrants or fire plugs in a single day. In order to clean the significant number of fire hydrants which even a midsize municipality employs in a reasonably limited time period, the municipality would need to employ a number of workers for the task.
It would be advantageous to provide a rotary brush system to clean fire hydrants, with the brush system including bristles that contact or are capable of contacting all of the above ground exterior surface of a hydrant or plug. The system could be mounted to a motor vehicle so that an effective and quick cleaning of the fire hydrant can take place by a single worker without the need for ancillary equipment such as generators, air compressors, a supply of cleaning material and the like and without needing multiple personnel during the cleaning process. Such a motorized cleaning system would also eliminate the need for multiple workers to be employed in the fire hydrant cleaning process, as a mechanized system would be significantly faster in cleaning a fire hydrant than would be a manual process for doing so. In other words, it would be advantageous to provide a one man cleaning system in order to reduce the costs to the municipality for cleaning fire hydrants.
BRIEF DESCRIPTION
In accordance with one aspect of the present disclosure, an apparatus for clearing around an associated stationary object comprises a housing including a top wall, a side wall, and at least one opening extending through the side wall. At least one paddle member is mounted to and extends radially outward from an exterior surface of the housing. The paddle member is adapted to clear around the associated stationary object. The apparatus further comprises a plurality of elongated cables mounted to a support that is selectively secured to an interior surface of the housing. The elongated cables are adapted to clean around the associated stationary object.
In accordance with another aspect of the present disclosure, an apparatus for clearing around an associated stationary object comprises a cylindrical housing including a longitudinal axis, a top wall, a side wall, and an open bottom. An opening is defined in the side wall of the housing and a cleaning member is mounted to an inner surface of the side wall. The apparatus further comprises a mounting member secured to the top wall of the housing.
In accordance with still another aspect of the present disclosure, an apparatus for the on-site clearing of snow from around an associated stationary object is provided. That apparatus comprises a housing including a top wall, an open bottom, a side wall, and a plurality of spaced slots extending through the side wall. The housing further comprises a longitudinal axis and the housing is adapted to be rotated about its longitudinal axis in relation to the associated stationary object. At least one paddle member is mounted to and extends radially outward from an exterior surface of the side wall. The at least one paddle member is located adjacent to and is aligned with one of the plurality of spaced slots in the housing. The apparatus further comprises an elongated cleaning member secured to an interior surface of the side wall. The elongated cleaning member extends radially into a space defined by the housing in a direction generally transverse to the longitudinal axis.



BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of a housing for a fire hydrant cleaning system according to a first embodiment of the present disclosure;
FIG. 2 is a cross sectional view of the housing along line 2-2 of FIG. 1;
FIG. 3 is a perspective view of the housing of FIG. 1 with the housing being shown in an open condition and illustrating only one set of brush mounts;
FIG. 3A is a top plan view of a section of the housing of FIG. 1 illustrating selectively detachable brush mounts;
FIG. 4 is a top plan view of a housing section according to another embodiment of the present disclosure illustrating permanently fixed brush mounts;
FIG. 5 is a side elevational view of a vehicle to which is connected a fire hydrant cleaning system according to the present disclosure, with a fire hydrant, illustrated in dashed lines, shown as being enclosed in a housing of the hydrant cleaning system;
FIG. 6 is a side elevational view in cross section of a housing for a fire hydrant cleaning system according to a second embodiment of the present disclosure;
FIG. 7 is a perspective view of the fire hydrant cleaning system of FIG. 6;
FIG. 8 is a perspective view of an interior of the fire hydrant cleaning system of FIG. 6 on an enlarged scale;
FIG. 9 is a perspective view of a bottom portion of the fire hydrant cleaning system of FIG. 6;
FIG. 10 is a perspective view of a housing for a fire hydrant cleaning system according to a third embodiment of the present disclosure;
FIG. 11 is an exploded perspective of the housing of FIG. 10;
FIG. 12 is a side elevational view in cross section of the housing of FIG. 10 after it has been lowered over a fire hydrant and is thus ready for use;
FIG. 13 is an enlarged exploded perspective view of a brush assembly mounted in the housing of FIG. 10;
FIG. 14 is a perspective view of a housing for a fire hydrant cleaning system according to a fourth embodiment of the present disclosure;
FIG. 15 is a greatly enlarged side elevational view of a portion of a plate and a cleaning element illustrated in FIG. 14; and
FIG. 16 is a perspective view of the fire hydrant cleaning system of FIG. 14 in an assembled form and ready for use; and
FIG. 17 is a perspective view of a portion of a housing for a fire hydrant clearing apparatus according to the present disclosure; and
FIG. 18 is a perspective view of a paddle member for a fire hydrant clearing apparatus according to the present disclosure; and
FIG. 19 is a perspective view of a portion of the interior of the housing of FIG. 17; and
FIG. 20 is a greatly enlarged side elevational view of a plurality of cleaning members according to an embodiment of the present disclosure.



DETAILED DESCRIPTION
With reference now to FIG. 1, in one embodiment, the present disclosure pertains to a housing 10 which comprises a first clam shell half 14 and a second clam shell half 16 that can be selectively opened or closed via a hinge or set of hinges 18. Supported on the first half 14 is a first top wall section 22 and supported on the second half 16 is a second top wall section 24. To this end, one or more flanges 28 (see FIG. 2) may be employed to support the top walls in place on the side walls or housing halves. Weld joints as at 30 may be employed to secure the several metal wall or housing sections to each other. As may be evident from e.g. FIG. 2, the housing 10 comprises a can-shaped cylindrical or barrel-shaped configuration with a closed top and an open bottom so that the housing can be lowered over or encircle the exposed portions of the stationary object which is meant to be cleaned.
With reference now to FIG. 3, the two clam shell halves 14 and 16 are there illustrated in an open position as permitted by hinge sections 18, but without the top wall portions 22 and 24. It can be seen that the clam shell halves 14 and 16 can be selectively secured in a closed position via cooperating locking tabs or brackets 32 and 34. Extending through the tabs are aligned apertures 36 which can accommodate conventional fasteners (not illustrated). In one embodiment, the clam shell halves are generally maintained in a closed position, as the fire hydrant cleaning system is moved from one hydrant to another. In another embodiment of the present disclosure, however, the clam shell halves can approach a fire hydrant in an open position and are closed around the fire hydrant, either manually or via conventional hydraulically operated piston and cylinder assemblies or the like.
With reference again to FIG. 2, a hydraulic motor 50 can be employed to selectively rotate the housing 10. The hydraulic motor is provided with inlet and outlet flow lines 52 and 54, as well as a support 56 to enable the motor 50 and the housing 10 to be mounted to a prime mover, such as a vehicle. In the illustrated embodiment, a mounting plate 60 is shown. While a flat mounting plate is depicted, this is done for the sake of simplicity. Generally speaking, an approximately two and a half inch (1.27 cm) diameter coupler is provided to allow the housing to be mounted to the hydraulic motor. A female receptacle may accommodate a round connecting member such as a bar. Other known shapes for the connecting member include a hexagon, a square or any other driven shaft extending from the hydraulic motor 50. It should be appreciated that other types of motors could also be employed to rotate the housing around the stationary object which is meant to be cleaned, descaled or otherwise prepared for subsequent painting operations.
Secured to an interior wall of the housing 10 are one or more mounting blocks 70. Each of these supports a plurality of elongated cleaning members 72. In one embodiment, the elongated cleaning members comprise bristles made of a suitable material such as metal wire or the like. In another embodiment, the elongated cleaning members comprise descaling needles. Such needles are known in the art and generally range in diameter from 2 mm to 4 or 5 mm and in some embodiments will have a length of 180 mm or more. Some descaling needles have a flat tip, while others are chisel tipped. The use of such needles for removing foreign substances from metal, wood, stone or the like is known. The needles are typically formed of drill rod or similar tough hard elastic steel. Descaling needles are known for removing scale from welds and for removing foreign substances from generally rigid surfaces. Normally, descaling needles are used in a reciprocating manner being propelled either pneumatically or with a reciprocating hammer.
In contrast, the instant disclosure pertains to the use of such elongated cleaning members, whether they be termed descaling needles or metal brush elements or the like in one or more blocks or support members, or otherwise rigidly attached to an interior surface of the housing 10 so as to selectively contact the exposed surfaces of a stationary object which is to be cleaned by the apparatus disclosed herein. In one embodiment, brush elements, made of a spring steel wire, are provided in a single length but with two different diameters. More particularly, the cleaning members can be 11 inches (27.94 cm) in length and can come in a larger diameter of 0.177 inches (0.45 cm) and a smaller diameter of 0.090 inches (0.23 cm).
Fasteners 74 extend through apertures 76 (see FIG. 3) in the housing halves 14 and 16 in order to selectively connect the mounting blocks 70 to the housing 10. It is apparent from FIG. 2 that mounting blocks are provided on the interior surfaces of not only the first and second clam shell halves 14 and 16, but also the top wall first and second sections 22 and 24. In this way, the entire outer above-ground surface or exposed areas of a hydrant can be accessed by the elongated cleaning members 72. In other words, the entire exposed surface of the fire hydrant or plug is surrounded by the elongated cleaning members. For the sake of simplicity, the elongated cleaning members will hereinafter be referred to as “bristles”, it being understood that needles or other elongated cleaning members are also encompassed by the term “bristles.”
In the embodiment illustrated in FIG. 2, a conventional hydrant 90 is shown. The hydrant includes a bonnet 92 and a barrel 94 mounted on a platform 96. The barrel 94 includes a plurality of nozzles 100, each being closed off by a nozzle cap 102. While one conventional hydrant 90 is illustrated in FIG. 2, it should be appreciated that the cleaning system disclosed herein can be adapted for use in connection with other known fire hydrant or fire plug designs which may have different shapes.
It should be appreciated that the bristles 72 are suitably sized so as to accommodate the several different diameter sections of the hydrant 90. As is evident from FIG. 2, the bristles can extend not just radially, but also somewhat axially so as to approach all of the outer or exposed surfaces of the hydrant 90. In this way, when the motor 50 rotates the housing 10, the bristles will contact and clean all of the exterior above-ground surface of the hydrant 90.
With the embodiment illustrated in FIG. 3A, the brush mounts 70 can be detached and replaced when the bristles 72 can no longer function in order to adequately clean a fire hydrant. This can occur as the tips of the bristle 72 are abraded away during the cleaning process, particularly as the housing 10 is spun or rotated around the fire hydrant during the cleaning process. Moreover, the method of raising and lowering the housing 10 over the fire hydrant may sufficiently erode the bristles or bend them so that they are no longer capable of adequately cleaning the fire hydrant. Under such circumstances, the mount 70 in question would be removed as via fasteners 74 and replaced with a new bristle mount or section.
In another embodiment, the bristles 72 could be so sized as to accommodate the varying diameter sections of a fire hydrant. In this embodiment of the disclosure, the clam shell halves of the housing would be open as they approach a fire hydrant and would be closed around the fire hydrant when cleaning of the hydrant is desired. Subsequently, the clam shell halves would again be opened in order to allow the cleaning system to be displaced from the fire hydrant.
With reference again to FIG. 2, a contact finger 108 can depend from the top surface of the housing 10. The contact finger 108 is intended to serve as a spacing means for the housing 10 by contacting an operating nut 110 of the fire hydrant 90, thus placing the cleaning assembly at the right height in comparison to the elevation of the fire hydrant. Such placement allows the several bristles to operate to their maximum efficiency. Of course, it should be appreciated that other types of locating means could also be employed for this purpose.
With reference now to FIG. 4, in another embodiment of the present disclosure, a housing section or half 120 is provided with permanently secured brush mounts 122 as by weld joints 124. Each brush mount supports a plurality of bristles 126. In this embodiment, the housing halves are only employed for so long as the bristles remain functional to clean the fire hydrant. Thus, when the bristles are no longer useful, the entire housing half would be replaced, rather than replacing the brush mounts as in the embodiment illustrated in FIG. 3A.
While a brush mount of a particular size and configuration is illustrated in FIG. 3, it should be appreciated that mounts 70 of a variety of sizes and configurations could be employed as may be required or desirable for a particular cleaning function. Thus, the mounts could be taller or wider, narrower or shorter as may be needed or desired. Further, the mounts may not necessarily be rectangular, as is illustrated in FIG. 3. Instead, the mounts could be of any desired shape or configuration.
Further, bristles of a variety of sizes and configurations could be employed as may be required. In addition, bristles of different materials may be used. In other words, both metallic and non-metallic bristles are contemplated for use. If metallic bristles are employed, the bristles can have diameters of varying sizes. Thus, different gauge wire can be employed for the bristles if so desired or required. As might be expected, thousands of such elongated cleaning elements, bristles or descaling needles can be employed to cover the interior surface of the housing 10.
It should be appreciated that the housing 10 has to be of a suitable diameter and length so as to accommodate the fire hydrant or fire plug being cleaned. Thus, the height of the cylinder has to cover the total above ground height of the fire hydrant and the diameter of the housing needs to accommodate the maximum diameter of the fire hydrant being cleaned and provide additional space for brushes mounted to the interior surface of the housing. One conventionally known size of fire hydrant or fire plug has a height of about 29 inches (73.66 cm) and has a diameter of about 18 inches (45.72 cm). Needless to say, other fire hydrant diameters and heights can also be accommodated by suitably sizing the housing 10.
With reference now to FIG. 5, a prime mover or vehicle 150 to which the cleaning system can be mounted includes a chassis 152 supported on wheels 154. Supported by the chassis 152 is an engine compartment 156, as well as a cab 158 in which an operator sits. Also supported on the chassis 152 is an arm 160 to which the housing 10 and motor 50 are mounted. The arm can be moved up and down via a known piston and cylinder assembly 164. As is evident from FIG. 5, hydraulic lines 180 can be provided in order to operate the hydraulic motor 50.
In the embodiment illustrated in FIG. 5, the prime mover 150 is in the form of a skid steer vehicle. These are adapted for use in many industrial, agricultural and landscaping applications where easy maneuverability, power lifting and transporting capabilities are required. The actuation of the piston and cylinder assembly 164 is controlled by the operator as is the actuation of the hydraulic motor 50. In this way, a single operator can control the cleaning of a fire hydrant.
In use, an operator sitting in the cab 158 of the vehicle 150 can approach a fire hydrant and lower the housing over the fire hydrant until the housing approaches a ground surface or otherwise encircles the fire hydrant. When the correct cleaning position of the housing is reached, the motor 50 is actuated in order to rotate the housing 10 and, hence, engage the bristles 72 against the outer surface of the hydrant 90. The length and thickness of the several elongated cleaning members or bristles is such as to allow for varying degrees of buckling and lateral deflection of the bristles when impacting a work surface, such as the outer surface of the hydrant 90. In other words, the ends of the bristles may splay out along the surface of the fire hydrant. As will be appreciated, the greater the deflection or splaying of the bristles, the less will be the intensity of the impact of the bristle tips against the outer surfaces of the fire hydrant. The length and flexibility of the elongated cleaning members enables a variation in the intensity of the impact of the cleaning members on the worked surface, i.e., the outer surface of the stationary object which is meant to be cleaned. It should be appreciated that the larger the amount of bristles in a given area, the more focused is the cleaning action on the fire hydrant or other stationary object, particularly if the bristles are not allowed to deflect or splay out. If desired, the force of a bundle of bristles can be intensified and confined to a smaller area. On the other hand, the more the cutting or working ends of the bristles are allowed to splay out or deflect, the more they are able to conform to the irregular outer surface of a fire hydrant or similar stationary object. In this way, the outer surface of the hydrant is cleaned or scoured in an efficient, rapid, and effective manner without the need for multiple personnel to handle the cleaning process and without the need for ancillary equipment, such as hoses, pumping equipment, power generators, cleaning fluids, sand and related material and equipment.
Once the cleaning process has been completed, the motor 50 is deactivated. The housing 10 can at that point be lifted away from the fire hydrant 90 via the arm 160. The vehicle can then be driven to the next adjacent hydrant to be cleaned. There, the process discussed above is again repeated.
In a further embodiment of the present disclosure, a single piece housing can be contemplated in which bristles are either detachably mounted to the housing via mounts or permanently secured to the housing. It should be appreciated that with a single piece housing, the housing would need to be lowered over the fire hydrant meant to be cleaned and then lifted upwardly away from the fire hydrant when the cleaning process is complete. With a single piece housing and permanently mounted bristles, the entire housing would be replaced when the bristles are no longer effective to clean a fire hydrant. With a single piece housing and detachable bristles secured on mounting blocks or mounts, the mounts would be detached and replaced as necessary.
It should also be appreciated that multiple piece housings can be employed, such that the housing comprises three or more sections which are joined to each other, such as by hinges. In such a design, each housing section would have mounted thereto bristle mounts, either permanently or detachably.
In another embodiment, the vehicle 150 can support a boom assembly having multiple link sections in order to allow the housing 10 and motor 50 to be moved greater distances away from the vehicle 150.
Once the cleaning system as finished its task, the fire plug or fire hydrant is prepped for priming and painting. Generally, the hydrant is primed and subsequently painted in at least one color. Many hydrants are painted two colors and sometimes even three colors. The various colors that hydrants are painted may indicate the flow characteristics of the hydrant. Different colors may indicate different water flow capacities as in gallons per minute (gpm), with one color indicating more than 1,500 gpm (567.1 liters per minute or lpm) and various other colors indicating 1,000-1,500 gpm (3785.4-5678.1 lpm), 500-999 gpm (1892.7-3781.6 lpm) or less than 500 gpm (1892.7 lpm). In other words, the amount of water that can be withdrawn from the hydrant could be indicated by the color of at least the cap of the hydrant.
In still another embodiment, the vehicle can be provided with not only a cleaning implement supported on a first boom, but a painting implement supported on a second boom that is spaced from the first boom. In this way, a single vehicle could be used not only to clean the fire hydrant, but also to paint the fire hydrant after the cleaning process has finished.
It should be appreciated that the cleaning assembly disclosed herein with suitable modifications can also be employed to clean highway pylons, shoulder posts and the like, located adjacent to roads or paths which can be traversed by the vehicle 150.
It is believed that the cleaning apparatus can clean a stationary object, such as a fire hydrant or fire plug in about one minute. Thus, the fire hydrant is ready to be painted in about sixty seconds. Moreover, the expensive sand blasting process previously employed to clean fire hydrants before painting has been eliminated. Thus, the manual labor involved and the man hours necessary for cleaning fire hydrants has been greatly reduced. Further, hand and eye injuries to workers employing known cleaning processes have been greatly reduced or eliminated entirely. Moreover, the productivity of the maintenance personnel employing the cleaning apparatus according to the present disclosure is greatly increased.
With reference now to FIG. 6, another embodiment of the present disclosure is there illustrated. In this embodiment, a barrel shaped fire plug cleaning device includes a housing 210 comprising a first barrel half 212 (FIG. 7) and a second barrel half 214. Suitable hinges 218 connect the two barrel halves. A barrel cap 222 overlies the structure. In this embodiment, bolts 226 or similar fasteners are employed for mounting a plate 252 for a brush holder 250 to the barrel cap 222. Located on the exterior surface of the barrel cap 222 is an arbor attachment 230 which is mounted via arbor gussets 228. The arbor attachment is configured to connect to a suitable motor (not illustrated in this embodiment) for rotating the barrel in relation to the fire hydrant being cleaned.
In this embodiment, an arbor cup brush 254 is mounted via a threaded rod 256 to the brush holder 250. This is employed for cleaning the arbor of the fire hydrant. It should be appreciated that several such brushes can be employed. Each arbor cup brush is adjustable via the threaded rod 256 so as to accommodate variations in geometry of the fire hydrant component being cleaned.
Selectively locking the barrel halves 212 and 214 together are angle iron locks 232 which have bolts 242 extending therethrough. In this embodiment, the barrel halves 212 and 214 are fastened together and subsequently the barrel cap 222 is lowered onto the barrel halves and the barrel cap flanges 240 which are mounted on the barrel halves (FIG. 9) are fastened by bolts 242 in place. Now the housing is ready for use.
With continued reference to FIG. 6, mounted to an inner face of the barrel are a plurality of wire brush holders 270 which each mount bristles 272 that extend inwardly for contact with the fire hydrant. In this embodiment, the wire brush holders 270 are mounted to the interior face of the barrel via fasteners 274.
In this embodiment, brush elements, made of a spring steel wire, are provided in a single length but with two different diameters. More particularly, the cleaning members are 11 inches (27.94 cm) in length and include members having a larger diameter of 0.177 inches (0.45 cm) and having a smaller diameter of 0.090 inches (0.23 cm). In the embodiment illustrated in FIG. 8, it can be seen that the larger diameter cleaning members and the smaller diameter cleaning members are held on separate holders 270. Thus, the respective wire holders 270 include respective components as follows. There is provided a small wire plate 280 which is secured via fasteners 282 to a backing plate 284 that is mounted on an interior surface of the barrel. Similarly, there is provided a large wire plate 290 which is mounted via fasteners 292 to a backing plate 294.
Extending through multiple openings in both the small wire plate and the large wire plate are the respective wires or bristles. The openings are sized to accommodate the diameter of wire which is meant to be supported by the small wire plate and the large wire plate respectively. It should be apparent from FIG. 9 that several generally rectangularly shaped such plates are provided. As previously noted, the plates are held in position by suitable fasteners 274. The respective small and large wire plates 280 and 290 trap an elbow shaped section of the plurality of small and large wire bristles between a back side of the plate 280, 290 and a front side of the respective backing plate 284 and 294. The bristles can be gathered in tufts if so desired. In this way, the bristles are held in place for use. It should be appreciated that any desired number of such wire brush holders 270 can be employed and that the wire brush holders can have any desired geometry. Thus, the blocks or wire brush holders can have any desired configuration and size and be provided with any desired or required size of bristle or descaling needle as may be necessary for the task at hand. Moreover, the holders or blocks 270 can be detached and replaced when the bristles become too worn for further use.
Depending downwardly from the plate 252 is a standoff 308 which is meant to contact the top of the fire hydrant to correctly space the cleaning assembly vertically in relation to the top of the fire hydrant.
With reference now to FIG. 10, still another embodiment of the present disclosure is there illustrated. In this embodiment, a barrel shaped fire plug cleaning device includes the housing 410 comprising first, second, third, and fourth sections 412-418. The first and second sections 412 and 414 are joined via a hinge 420 and the third and fourth sections 416 and 418 are joined via another hinge 420. A barrel cap 422 overlies the housing sections 412-418 and is fastened to the upper two sections 412 and 414 thereof. In this embodiment, bolts 426 or similar fasteners are employed for mounting a plate 452 to a lower surface of the barrel cap 422. Located on an exterior or upper surface of the barrel cap 422 is an arbor attachment 430 which is mounted via arbor gussets 428. The arbor attachment is configured to connect to an output shaft of a suitable known motor (not illustrated in this embodiment) for rotating the housing or barrel in relation to the fire hydrant or other stationary object which is meant to be cleaned. Selectively locking the first and second housing sections 412 and 414 to each other, and the third and fourth housing sections 416 and 418 to each other are angle iron locks 432. These are provided on each of the sections 412-418 at a location opposite the hinges 420 and are fastened to each other via bolts 442 or similar suitable fasteners. To this end, the angle iron locks have apertures through which the bolts 442 extend and the bolts may be secured in place via nuts 444.
The barrel cap 422 is provided with a plurality of spaced barrel cap flanges 440 which are employed to connect the barrel cap to the upper or first and second housing sections 412 and 414 via suitable fasteners 442 that extend through aligned apertures in the respective barrel cap flange and in the respective housing section. Once the several barrel sections are fastened together, the barrel cap 422 can be lowered onto the now joined barrel sections and fastened in place via the bolts 442 in order to provide a housing which is ready for use.
Mounted to an inner face of each of the respective housing sections 412-418 are wire brush assemblies or holders 470. Each holder includes and plurality of bristles 472. The bristles 472 extend inwardly in the barrel or housing 410 in order to contact the exposed surface of the fire hydrant once the barrel is lowered over the fire hydrant for cleaning purposes. With reference now also to FIG. 13, each of the holders 470 can comprise a first holder plate 474 and a second holder plate 476. The several bristles or descaling needles 472 are arranged so as to extend through respective openings 480 in the second holder plate 476 such that each bristle or descaling needle can have one bent end 482 trapped between the first and second holder plates 474 and 476.
Suitable fasteners 484 are provided that extend through aligned fastener apertures 486 and 488 in the first and second holder plates 474 and 476 respectively in order to hold the plates together and thus support the bristles. If the fasteners are bolts, they can be secured via nuts 490. It should be appreciated that the respective fasteners 484 also extend through openings 492 in each of the respective housing sections 412-418 in order to securely mount the brush assemblies or wire holders for 470 in place on the housing 410. Thus, the openings or apertures 486, 488 and 492 are aligned in order that a fastener 484 can pass through each aligned set of openings. While the housing sections 412-418 are generally curved, the brush assemblies 470 can be generally planar in configuration as each brush assembly only occupies a limited portion of the circumference of the respective housing section. This can be seen best in FIG. 11 of the instant application's drawings.
With reference now to FIG. 12, once the housing or barrel has been assembled, it can be lowered over a fire hydrant 460. Thus, each of the several brush assemblies or wire holders 470 mounted to the barrel contact respective portions of the exposed surface of the hydrant 460. It should be appreciated from FIG. 12 that spacers 494 can be provided between the inner surface of a housing section and a brush assembly as is evident from the upper portion of the housing 410 shown in FIG. 12. In this way, fire hydrants or other stationary objects of varying diameters may be accommodated by the brush assemblies supported by or in the housing 410. Further, fire hydrants of differing heights can be accommodated by either adding or removing the third and fourth sections 416 and 418 of the housing 410. Needless to say the heights and diameters of the several housing sections 412-418 as well as the diameter of the barrel cap 422 can be adjusted as may be necessary to suit any particular intended use of the cleaning device. In order to correctly locate the housing 410 in relation to the fire hydrant 460, a standoff 508 can be secured to a lower face of the plate 452 as is evident from FIG. 12. It should be appreciated that a drive shaft 464 of a motor (not shown) engages the arbor 430 and is connected thereto by known means such as fasteners (not shown) in order to rotate the housing 410 so as to clean the fire hydrant 460.
With reference now to FIG. 14, yet another embodiment of the present disclosure is there illustrated. In this embodiment, a barrel shaped fire plug cleaning device includes a housing 510 comprising a first half or section 514 and a second half or section 516. These two sections are movably connected to each other by at least one hinge 518. Once assembled, and with reference now also to FIG. 16, the cleaning device or cleaning apparatus also includes a barrel cap 522. Positioned on an exterior surface of the barrel cap are several arbor gussets 528 for holding an arbor attachment 530 in place. The barrel cap 522 includes at least one barrel cap flange 540 which can be secured to the housing sections or barrel sections 514 and 516 via fasteners such as bolts 542. Thus, the barrel cap 522 is mounted to the housing sections 514 and 516.
With reference now again to FIG. 14, mounted to an interior surface of each housing half or barrel section are several cleaning elements 568. Each cleaning element can comprise a holder plate or similar support member 570. In one embodiment, the plate can have an elongated rectangular form including a first side wall 571a and a second side wall 571b (FIG. 15). Extending from the first side wall in a direction generally radially inwardly into the fully assembled housing, as illustrated in FIG. 16, are a plurality of elongated cleaning members 572. Each holder plate 570 is secured to the respective housing section 514 and 516 by one or more fasteners such as bolts 574, as best seen in FIG. 16.
With reference now to FIG. 15, the elongated cleaning member 572 can, in this embodiment, comprise a cable segment 576 which can be made of a plurality of strands 578 of an elongated metallic material, such as a wire. Such wire cable or rope is generally composed of a plurality of strands and a core with the strands being formed in a helix or spiraling pattern around the core as is illustrated in FIG. 15. Wire cable or rope is very durable meaning that the cleaning members 572 can be employed for cleaning numerous hydrants, perhaps as many as one hundred, before needing to be replaced. There are many different sizes, configurations and materials which can form such wire, cable or rope. One category includes a variety of 304 stainless steel wire rope in configurations of, for example, 6×19 or 6×37 (referring to the number of strands in the core and in the windings around the core of the cable or rope segment). Of course, it should be appreciated that any desired number of strands for either the core or the windings around the core can be provided in the cable or rope according to the present disclosure. Moreover, the metal does not need to be a stainless steel but could be any desirable metal suitable for the purpose of forming the elongated cleaning members. Diameters of suitable cable or rope can be varied as may be desirable for a particular cleaning installation. The diameters can range, for example, from 1⁄8 of an inch to 1⁄2 and inch or even up to an inch if so desired.
A first collar 580 can be positioned at a proximal end of the cable segment 576 adjacent the plate interior surface or wall 571a. The collar 580 can be crimped in place on the cable segment 576. In one embodiment, a weld joint 582 secures the first collar 580 to the plate. A second collar 584 can be positioned adjacent a distal end of the cable segment 576. The purpose of the second collar 584 is to prevent the several strands 578 in the cable segment 576 from separating or unraveling from their helical configuration during use. It should be appreciated that both the first and second collars are fitted onto the cable segment 576 so as to crimp the same in place and retard any tendency by the collars 580 and 584 to slide or move longitudinally in relation to the cable segment 576. At the same time, the crimping of the first collar 580 around the cable segment 576 will retard any tendency by the cable segment to work its way out of the first collar 580.
With continued reference to FIG. 16, it can be seen that in this embodiment the housing 510 comprises a plurality of apertures in both the housing sections 514 and 516 and in the barrel cap 522. More particularly, at least one opening 590 is provided in the barrel cap 522, with the opening being closed by a window 592. Similarly, at least one opening 596 is provided in at least one of the first and second housing sections 514 and 516 with the opening 596 being closed by a window 598. The purpose for providing windows 592 and 598 in one or both of the barrel cap 522 and the housing sections 514 and 516 is to allow the operator of the prime mover or vehicle (not illustrated in this embodiment) to which the cleaning device is mounted to see into the housing. Allowing the operator to see into the housing is desirable in order that the cleaning device be correctly placed over the stationary object meant to be cleaned such that the elongated cleaning members 572 can be correctly positioned in relation to the stationary object. Put another way, viewing windows 592 and/or 598 can be provided on the housing 510 for use by the operator of the machine to which the housing is selectively connected.
With reference now to FIG. 17, it can be seen that yet another embodiment of the present disclosure is there illustrated. In this embodiment, a cylindrical or barrel-shaped clearing apparatus includes a housing 610 comprising a top wall (not shown, but like the barrel cap 522 shown in FIG. 16), a side wall 612, and an open bottom. As may be evident, the top wall and open bottom of the housing 610 permit the housing to be lowered over or encircle the exposed portions of a stationary object which is to be cleaned or around which the area is to be cleared. The housing is adapted to be rotated about its longitudinal axis in relation to the object. As mentioned, the top wall may be constructed as a barrel cap (see FIG. 16). Further, in certain embodiments, the top wall includes a mounting member secured thereto. The mounting member can be, for example, an arbor attachment (see FIG. 16). In one embodiment of the present disclosure, a toroidal opening is defined between the top wall and the side wall, as can be best seen in FIG. 16.
The housing 610 further comprises at least one slot or opening 696 extending through the side wall 612 of the housing 610. The purpose for providing at least one opening in the side wall of the housing is to facilitate snow, dirt, or other debris which is cleared away from the associated stationary object to be ejected from the housing 610. The one or more openings in the housing allow the material surrounding the associated stationary object to be cleared from around the object by exiting the housing through the opening. In this regard, in geographic areas that receive significant amounts of snowfall, fire hydrants and other ground-mounted objects often become covered by snow. It is desirable to clear the snow from around such objects to allow easier access to the objects and minimize delays in utilizing the objects. With regard specifically to fire hydrants, currently it is necessary not only to dig through the accumulation of snow up to the hydrant itself, but also to clear a sufficiently wide area radially around the hydrant such that there exists unobstructed access to the connection points of the hydrant in the event of an emergency such as a fire. It would clearly be advantageous to have the area around the fire hydrant cleaned before a fire requires urgent use of the fire hydrant. Precious time will otherwise need to be taken during the fire emergency to clean the area around the fire hydrant before it can be used.
Additionally, the one or more openings 612 provide the operator of the prime mover or vehicle (not illustrated in this embodiment, but like the one shown in FIG. 5) to which the clearing apparatus may be mounted to see into the housing, thereby ensuring that the clearing apparatus is correctly placed over the stationary object without damaging the object and to ensure that a sufficient area has been cleared around the object. Put another way, at least one opening 696 can be provided in the side wall 612 of the housing 610 to facilitate clearing around a stationary object and for use by the operator of the machine to which the housing is selectively connected. In the embodiment illustrated, two such openings 696 can be seen.
With continued reference to FIG. 17, it can be seen that in this embodiment the apparatus further comprises at least one paddle member 620. The paddle member 620 is mounted to and extends radially outward from an exterior surface 614 of the housing side wall 612. Also, the paddle member 620 in this embodiment extends along an axis parallel to a longitudinal axis of the housing 610. The purpose for providing a paddle member mounted to and extending away from the housing is to direct snow, dirt, or other debris exiting the housing through the at least one opening away from the housing. In some embodiments, such as that shown in FIG. 17, the paddle member 620 can extend along the exterior surface 614 of the housing 610 from adjacent a bottom edge 613 of the side wall 612 of the housing 610 to adjacent a top edge 697 of the at least one opening 696. In this way, the paddle member 620 is capable of deflecting snow, dirt, and other debris exiting the at least one opening 696 away from the housing 610, thereby clearing around the object over which the housing 610 is placed. It is to be understood that the size of the opening 696 and the size of the paddle member 620 may be varied as desired. In addition, the distance that the paddle member 620 extends radially outward from the housing 610 can be varied depending upon the desired amount of cleared space around the object.
Turning now to FIG. 18, the paddle member 620 is shown as having a generally rectangular configuration. More specifically, the paddle member comprises a bracket 622 and a planar section 624 mounted to the bracket 622. The bracket 622 is used to mount the paddle member 620 to the exterior surface 614 of the housing 610, such as is shown in FIG. 17. To facilitate such mounting, the bracket 622 can include a plurality of spaced apertures 628. The plurality of apertures 628 located in the paddle member bracket 622 are aligned with respective apertures (not visible) in the housing 610. The paddle member 620 is mounted to the housing 610 by passing a respective fastener 630, such as a bolt, through aligned sets of apertures of the paddle member 620 and the housing 610. In this way, the paddle member 620 is removably mounted to the outer surface of the housing 610. To facilitate clearing of snow, dirt, and debris exiting the housing 610 through the opening 696 in the side wall 612 thereof, the paddle member 620 is shown in this embodiment as being located adjacent to and aligned with the at least one opening 696.
It is to be understood that any desired number of openings can be provided in the housing. Similarly, any desired number of paddle members can be mounted to the housing as may be desired. For example, in one embodiment, multiple slots or openings are spaced apart around the housing and multiple paddle members are provided and are located adjacent to and aligned with respective ones of the spaced slots or openings in the housing. However, equal numbers of paddles and openings need not be provided. Thus, in some embodiments, there could be a lesser number of paddles than openings, if so desired.
It should also be appreciated that the paddle members 62 can be selectively detached from the housing 610. In this way, the housing can be employed for both cleaning the stationary object when the paddles are not necessary and can be reattached when such paddles prove useful, such as in the winter time.
With reference now to FIG. 19, a support 670 is selectively secured to an interior surface 616 of the housing 610. The support 670 accommodates a plurality of cleaning members or elements 672. In this embodiment, each cleaning member comprises a plurality of twisted cables. In particular embodiments, the support 670 can be generally rectangular in configuration. The support 670 may be selectively secured to the housing 610 by any suitable means, such as fasteners 634. It should be appreciated that the support 670 is removably mounted to the housing 610, so that the support 670 can be removed and replaced when at least some of the cleaning members 672 are no longer effective for their cleaning function.
As mentioned, in this embodiment, the cleaning members 672 comprise elongated cables that extend radially inward from the support 670 into an interior space defined in the housing in a direction generally transverse to a longitudinal axis of the housing. Thus, in this embodiment, the support 670 and the paddle member 620 extend substantially perpendicular to one another. On the other hand, the paddle 620 and the set of cables 672 extend radially outwardly and radially inwardly, respectively, from the housing 610. Thus, they extend in planes which are oriented parallel to the longitudinal axis of the housing 610. In fact, the paddles can be provided directly aligned with one of the sets of cables, if so desired.
With continued reference to FIG. 19, it can be seen that some of the supports 670 are wider than others so that they can accommodate two generally vertically aligned sets of cleaning members 672, whereas other supports, such as at 674, can only accommodate a single set of cleaning members 672. The distal ends of each respective cleaning member 672 are held in respective collars 676 which can be secured to the supports 670 and 674 by conventional means, such as weld joints illustrated at 678.
In the embodiment shown in FIG. 19, the elongated cables 672 each include a respective collar 678 mounted to a distal end (i.e., the end spaced away from the interior surface 616 of the housing 610) of each of the elongated cables 672. The purpose of providing the elongated cables 672 with collared ends is to provide added strength to the elongated cables 672 when clearing snow, dirt, or other heavy debris from around the stationary object. With reference now also to FIG. 20, shown there is a one of the supports, in this case support 674, after it has been removed from the housing because the cables have become frayed. It is apparent that the collars 678 have been pushed down the length of the elongated cables 672. This could necessitate the replacement of the cleaning members. That can be readily accomplished by simply removing the support 674 from the housing and replacing it with a support to which unused cleaning members are mounted, as shown in FIG. 19.
It should be appreciated that different kinds of supports and cleaning assemblies can be mounted to the housing as may be required for a particular purpose. Thus, in the winter time, it is not necessary for the cleaning members to thoroughly clean the stationary object of any accumulated rust or the like. Rather, it is only necessary that the accumulated snow be cleaned from around the associated object so that ready access can be had to the object. On the other hand, in the summer time, the cleaning members have to thoroughly engage the stationary object so as to clean same and make it ready for repainting. To this end, different kinds of cleaning assemblies using different kinds of cleaning members can be provided.
In addition to the snow being able to be removed from the housing via the openings 696 illustrated, for example, in FIG. 17, it should be appreciated that the housing 610 also includes a top wall, such as the one shown in FIG. 16, and that there is a toroidal opening located between the top wall and the housing 610. Additional snow can thus be ejected from or fall away from the housing through the toroidal opening provided between the housing and the side wall.
In this embodiment, the openings in the side wall do not have windows therein, unlike the embodiment illustrated in FIG. 16. Rather, they are open.
Disclosed has been a one man cleaning system which could be mounted to a motor vehicle so that an effective and time efficient cleaning of a fire hydrant can take place by a single worker. Also disclosed has been a method for cleaning a fire hydrant in a mechanized manner without the need to employ multiple workers to manually clean the above-ground exterior surface of a fire hydrant or plug, or similar stationary object and without the need for ancillary equipment, such as generators, air compressors, a supply of cleaning material and the like. In addition to the other benefits discussed above, the need for preparation time and cleanup is substantially reduced through the use of the disclosed one man cleaning system because there is no need to set up ancillary equipment or supply cleaning materials and to clean up such materials after the fire hydrant has been cleaned and prepared for painting.
Disclosed has been a vehicle on which is mounted a rotary device for cleaning the fire hydrant. The device includes a generally cylindrically shaped housing. A rotary drive is provided for rotating the housing. Mounted on an interior wall of the housing are a plurality of elongated cleaning members which can extend radially and at various angles into the housing. The elongated cleaning members can flex or move to accommodate the contours of the fire hydrant being cleaned.
The disclosure has been described with reference to several embodiments. Obviously, modifications and alterations will occur to others upon a reading and understanding of this specification. It is intended to include all such modifications and alterations in so far as they come within the scope of the appended claims and the equivalence thereof.

## Claims

1. An apparatus for clearing around an associated stationary object, the apparatus comprising:
a housing including a top wall, a side wall, an open bottom, and at least one opening extending through the side wall;
at least one paddle member mounted to and extending radially outward from an exterior surface of the housing side wall;
a plurality of elongated cables mounted to a support that is selectively secured to an interior surface of the housing side wall; and
wherein the at least one paddle member includes a plurality of apertures and the housing includes a plurality of aligned apertures through each of which extends a respective fastener adapted for securing the at least one paddle member to the housing.

2. The apparatus of claim 1 wherein the at least one paddle member comprises a bracket and a planar section mounted to the bracket.

3. The apparatus of claim 2 wherein the at least one paddle member extends along the exterior surface of the housing from adjacent a bottom edge of the side wall to adjacent a top edge of the at least one opening.

4. The apparatus of claim 1 wherein the housing is generally cylindrical in configuration.

5. The apparatus of claim 1 wherein the at least one paddle member is located adjacent to and is aligned with the at least one opening.

6. The apparatus of claim 2 wherein the at least one paddle member planar section is generally rectangular in configuration.

7. The apparatus of claim 1 wherein the support is generally rectangular in configuration.

8. The apparatus of claim 1 wherein the at least one paddle member and the support are each removably mounted to the housing.

9. The apparatus of claim 1 further comprising a collar mounted to a distal end of at least one of the plurality of elongated cables.

10. The apparatus of claim 1 wherein the at least one paddle member extends along a longitudinal axis of the housing and the plurality of elongated cables extend in a direction generally transverse to the longitudinal axis.

11. An apparatus for clearing around an associated stationary object, the apparatus comprising:
a cylindrical housing including a longitudinal axis, a top wall, a side wall, and an open bottom;
an opening defined in the side wall;
a toroidal opening defined between the top wall and the side wall;
a cleaning member mounted to an inner surface of the side wall; and
a mounting member secured to the top wall.

12. The apparatus of claim 11 comprising at least two spaced openings located in the side wall.

13. The apparatus of claim 11 further comprising a paddle member mounted to an outer surface of the side wall.

14. The apparatus of claim 13 wherein the paddle member comprises a bracket and a planar section mounted to the bracket.

15. The apparatus of claim 13 wherein the paddle member is mounted adjacent to and is aligned with the opening in the housing side wall.

16. An apparatus for the on-site clearing of snow from around an associated stationary object, the apparatus comprising:
a housing including a longitudinal axis, a top wall, an open bottom, a side wall, and a plurality of spaced slots extending through the side wall;
at least one paddle member mounted to and extending radially outward from the exterior surface of the side wall adjacent to and aligned with at least one of the plurality of spaced slots in the housing; and
an elongated cleaning member secured to an interior surface of the side wall and extending radially into a space defined by the housing in a direction generally transverse to the longitudinal axis;
wherein the housing is adapted to be rotated about the longitudinal axis in relation to the associated stationary object.

17. The apparatus of claim 16 wherein a plurality of elongated cleaning members are mounted to a support which is detachably mounted to the interior surface of the side wall so that the support can be replaced when at least some of the plurality of elongated cleaning members are no longer effective for their cleaning function.

18. The apparatus of claim 16 further comprising a collar mounted on a distal end of the elongated cleaning member.

19. An apparatus for clearing around an associated stationary object, the apparatus comprising:
a housing including a top wall, a side wall, an open bottom, and at least one opening extending through the side wall;
at least one paddle member mounted to and extending radially outward from an exterior surface of the housing side wall;
a plurality of elongated cables mounted to a support that is selectively secured to an interior surface of the housing side wall; and
wherein the at least one paddle member and the support are each removably mounted to the housing.

20. The apparatus of claim 1 wherein the at least one paddle member comprises a bracket and a planar section mounted to the bracket.