HIGH PRESSURE WATER JET ADD-ON TO HYDROVAC BOOM HOSE
BACKGROUND
[0001] Large vertical columns or vertical structures are used to build many types of buildings or structures. Such buildings or structures may include fences, bridges, arches, aqueducts, roadways, buildings etc. In order to create an adequate foundation for these vertical columns, vertical holes are required to be dug into the ground in order to receive a lower end of these vertical columns or structures.

[0002] Pilot holes are required to dig vertical holes. In the past, pilot holes have been dug utilizing shovels, post hole shovels and other types of tools that use mechanical force to shovel or remove dirt and other earthly material from the ground in order to form a hole.
However, using shovels and other related tools can cause problems. For example, buried assets such as utility cables and conduits may be damaged by a shovel or other tool when digging a hole.

[0003] More recently, hydrovacs have been used to remove dirt in order to form holes.
However, hydrovacs use a two-man system. One man runs the boom and the other runs the wand. This means that there are two men within the touch potential zone if the wand or the dig tube came into contact with an underground power source.

[0004] However, may not have enough suction power in order to remove larger rocks and boulders from the ground. In order to decrease the size of the rocks and boulders, water has been used in order to facilitate the removal process by using water to the erode or decrease the size of the earthly material so that the suction power of a vacuum can be used to remove earthly material.

[0005] However, one problem of using water with vacuum power is that it may be difficult to combine water erosion power with the vacuum suction power.
Another problem with combining water power with vacuum suction power is that the size of the hole may be too small to incorporate both a vacuum and sufficient water erosion power. Another problem associated with existing systems for combining water and suction power is that the existing uses of combined water and suction power do not adequately confine the water and suction power to a defined area.

[0006] As a result, there exists a need for improvements over the prior art and more particularly for a more efficient way of digging or excavating pilot holes.
SUMMARY

[0007] A system and method for a system for excavating holes is disclosed.
This Summary is provided to introduce a selection of disclosed concepts in a simplified form that are further described below in the Detailed Description including the drawings provided. This Summary is not intended to identify key features or essential features of the claimed subject matter. Nor is this Summary intended to be used to limit the claimed subject matter's scope.

[0008] In one embodiment, a system for excavating holes is disclosed. The system comprises a device for coupling to a working end of a hydrovac boom hose. The device includes a cylindrical suction tube configured for removably coupling to the working end of the hydrovac boom hose, such that an opening of the working end remains unobstructed. A
plurality of high pressure water jet nozzles is located around a circumference of the cylindrical suction tube, such that the high pressure water jet nozzles surround the working end of the device. The high pressure water jet nozzles are configured for emitting high pressure water that dislodge earthly material. A plurality of air vents is presented on the cylindrical housing.
The air vents allow the flow of ambient air to the area being excavated by the device. A conduit is coupled with the cylindrical housing. The conduit is for allowing ingress of water to the plurality of high pressure water jet nozzles.

[0009] Additional aspects of the disclosed embodiment will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the disclosed embodiments. The aspects of the disclosed embodiments will be realized and attained by means of the elements and combinations particularly pointed out in the appended claims. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosed embodiments, as claimed.
BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The accompanying drawings, which are incorporated in and constitute part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the disclosed embodiments. The embodiments illustrated herein are presently preferred, it being understood, however, that the invention is not limited to the precise arrangements and instrumentalities shown, wherein:

[0011] FIG. 1 is a device for coupling to a working end of a boom hose, according to an example embodiment;

[0012] FIG. 2 is a device for coupling to a working end of a boom hose and further illustrating the flow of fluid, air and material, according to an example embodiment;

[0013] FIG. 3 is a device for coupling to a working end of a boom hose, wherein the device further includes a sleeve, and wherein the components within the sleeve are illustrated with broken lines, according to an example embodiment;

[0014] FIG. 4 is a block diagram illustrating main electrical components of the device and the flow of fluid air, fluid and material within tubular bodies of the device, according to an example embodiment; and,

[0015] FIG. 5 is a block diagram of a computing device, according to an example embodiment.
DETAILED DESCRIPTION

[0016] The following detailed description refers to the accompanying drawings.
Whenever possible, the same reference numbers are used in the drawings and the following description to refer to the same or similar elements. While disclosed embodiments may be described, modifications, adaptations, and other implementations are possible.
For example, substitutions, additions or modifications may be made to the elements illustrated in the drawings, and the methods described herein may be modified by substituting reordering, or adding additional stages or components to the disclosed methods and devices.
Accordingly, the following detailed description does not limit the disclosed embodiments.
Instead, the proper scope of the disclosed embodiments is defined by the appended claims.

[0017] The disclosed embodiments improve upon the problems with the prior art by providing a device for coupling to a working end of a hydrovac boom hose. The system provides a more efficient and safe way for excavating holes and removing earthly materials.
The system provides a device that combines the use of water jet power and vacuuming power in one device that reduces the space necessary to accommodate an excavating device. The system may also include a sleeve that surrounds the jet nozzles and boom hose that is configure to confine fluid exiting the jet nozzles and suction force of the vac hydrovac boom hose to a defined area. The system also improves over the prior art by allowing the hole to be excavated without operators within the touch potential zone of the hydrovac boom eliminating possible electrocution. The system also improves over the prior art by reducing the amount of energy required to excavate a hole.

[0018] Referring now to the Figures, FIGS. 1 and 2 will be discussed together. FIG. 1 is a prospective view of the device 100 coupled to a working end 103 of a hydrovac boom hose 105. In FIG. 2, the device is also coupled to a working end of a boom hose and further illustrates the flow of fluid, air and materials within the device. The hydrovac boom hose is an elongated tubular like structure. The second end or vacuum end 210 of hydrovac boom hose is communicatively coupled to a vacuuming device 140 (as illustrated in FIG.
4). The device 100 may comprise a motor (405 as illustrated in FIG. 4) that is configured to provide suction force in direction of line A. The device 100 may also direct the earthly material and water removed to a reservoir 170 that may be configured to receive and removably store earthly material and water (as illustrated in FIG. 4).

[0019] A suction tube at the center of the device 100 is configured for removably coupling to the working end of the hydrovac boom hose, such that the opening 104 of the hydrovac boom hose remains unobstructed. Similar to the hydrovac boom hose, the suction tube may also be may be collapsible, accordion like, telescoping, etc, that may be extendable, lengthened, shortened, raised, or lowered. Similar to the hydrovac boom hose, the suction tube may be fabricated from any number of flexible and/or resilient materials such as a plastic or polymer, neoprene, or a rubber. Additionally, the suction tube may also be fabricated from a metal or other rigid or partially rigid material constructed to flex or bend.
The suction tube may be configured to span only a small portion of the hose or the entire or substantial amount of the vacuum hose.

[0020] The housing may comprise a plurality of vents or cutouts 150 along the body of the housing. The plurality of air vents allows for air to move through the annual space between the cylindrical housing and the hydrovac boom hose. In operation, as earthly material is sucked into the working end of the hydrovac boom hose, the holes or cutouts in the cylindrical housing allows for ambient air to travel from outside the cylindrical housing and up into the working into the working end of the hydrovac boom hose. The cutout may define a variety of shapes such as a rectangle, circle, triangle, or variety of different shapes.
Additionally, the dimensions and number of the cutouts may be varied depending on the amount of air required to travel into the working end of the house.

[0021] A conduit 125 is coupled with the cylindrical housing. The conduit is configured for allowing ingress of water to a plurality of water jet nozzles 115 and for emitting a stream of high pressure nozzle through the nozzle end 120. The conduit may comprise flexible materials such PVC, acrylic, butyrate, neoprene, polycarbonate, Polyurethane, Nylon, PVC (Vinyl) and Polyethylene, copolymers, fiber-reinforced polymers, or any combination thereof. Additionally, other materials having flexible properties can be used and are within the spirit and scope of the present invention.

[0022] The water jets are configured to provide a pressurized stream of water to towards an area. In operation, the stream of water emitted from the water jets are able to erode earthly materials so that the materials may be suctioned through the opening 104 of the working end of the suction tube. A first end 125 of the conduit may be attached to a water source 160 for delivering water to the water jet nozzles (as illustrated in FIG. 4). A
water pump may be used (as illustrated as 405 in FIG. 4) for pressurizing and/or pumping the water to the nozzles and controlled by a control unit comprising a processor (as illustrated as 415 in FIG. 4). The nozzles may also be configured to emit water at a plurality of pressures and emitting rates (including varying intervals of pressure). The nozzles may be configured emit water between 0 pounds per square inch (PSI) and 3000 PSI and between 0 gallons per minute (GPM) and 80 GPM. Additionally, the water jet nozzles have an adjustable element or an element that allows a user to adjust the pressure of the water stream emitted from the nozzle tip and the area of the ground contacted by the stream of water. The nozzle adjustability allows to increase and decrease the area that the water emitted from the nozzles contact.

[0023] The device may also include a locating device senor 215 and related circuitry configured for monitoring, locating or detecting utilities, conduits and buried assets within the ground and for providing an alarm for such upcoming utilities, conduits and buried assets. The sensor is adapted for communicating to a processor of the device (within a control unit) that is configured to provide an alarm to notify the operator of any underground utility or cable. Such sensors are well known to those skilled in the art and may include a resistivity sensor, a permittivity sensor, a conductivity sensor, and a magnetometer. Additionally, other sensor and circuity may be used and are within the scope of the present invention. The alarm may be a visual or a sound alarm, however other types of alarms are within the spirit and scope of the present invention. The processer may integral with or conductively coupled or wirelessly coupled with a control unit of the device 415 (further illustrated in FIG. 5 and explained below).

[0024] The housing is covers the nozzles. The sleeve 305 slides over the housing to create a bumper for the working end of the device and allows a stopper to control the contact area of the nozzles. The sleeve is made of a non-electric conductive material to help eliminate electrocution. The sleeve is an elongated tubular shaped body that is fabricated from any number of flexible and/or resilient materials such as a plastic or polymer, neoprene, or a rubber.
Additionally, the sleeve may also be fabricated from a metal or other rigid or partially rigid material constructed to flex or bend.

[0025] Referring to FIG. 2, 3 and 4, in operation, an operator that intends to excavate a hole may attach a tubular suction tube to the device. The first end of the conduit is attached to the water source 160 so that water can communicate and flow to the nozzle end 410 of the conduit. The second end or vacuum end 210 of the vacuum boom hose is attached.
Next, the user will positon the working end of the device proximate to an area that is needed to be excavated. Next, a user will activate the motor of the vacuum so that suction force in the direction of line A will force earthly materials, water and air up the working end of the hose toward the vacuum and, in some embodiments, into the reservoir or storage bin 170. At the same time, pressurized water from the water source in direction of line B is moved towards water jets 115 and are emitted from the tips of the water jet nozzles 120. The pressured water from the water jet nozzles may erode the earthly material so that that water and earthly materials can be sucked into the opening 104 of the hose. Ambient air can enter into annular space between the suction tube and the cylindrical shaped housing (in direction of line D) through the air vents or cutouts 150 along the housing. The air moves towards the working end of the suction tube because of the suction force of the hydrovac boom hose when the device is in operation.

[0026] In order to excavate, an operator will position the device coupled to the working end of the boom hose in close proximity to the area that needs to be excavated. Next the operator will activate the vacuum 140 and the water supply from the water source. As earthly material, water and air is sucked into the working end of the hydrovac boom hose, the holes or cutouts in the cylindrical housing allow for ambient air to travel from outside the cylindrical housing and up into the working into the working end of the hydrovac boom hose. The stream of water emitted from the water jets are able to erode earthly materials so that the materials may be suctioned through the opening of the working end of the hydrovac boom hose.

[0027] In operation, when the device is being used, the nozzles are covered by the housing, as it protrudes past the housing to act as a bumper guard between the device and the oncoming utilities. In other embodiments, additional attaching elements or means may be used throughout the body of the hose.

[0028] FIG. 4 is a block diagram illustrating the main electrical components of the device and the flow of fluid and air within tubular bodies of the device. The components of the device are not located as they would be on the device for illustration purposes. As explained briefly above, the control unit 415 may include a processor that is conductively coupled to the motor, water source controller, and locating sensor. Line A represents the flow of earthly material, water and air sucked into the working end of the hydrovac boom hose by the vacuum 140. Such material may be moved in the direction of Line C and stored and moved to reservoir or storage bin or area 170. Water is moved in the direction of Line B from the water storage 160 and emitted from openings in the end of the water jet nozzles, and then sucked by the working end of the hydrovac boom hose. Ambient air flows into the air vents 150 from outside the cylindrical housing towards the working end of the hose (in the direction of Line D) and then up into the working into the working end of the hydrovac boom hose.
Filters may also be used at different parts of the device to filter the air, water, etc.
Additionally, filters may be used to filter the earthly material so that water may be returned to the water supply via a return conduit 430

[0029] With reference to FIG. 5, a system consistent with an embodiment of the invention may include a plurality of computing devices or processors, such as computing device 500. In a basic configuration, computing device 500 may include at least one processing unit 502 and a system memory 504. Depending on the configuration and type of computing device, system memory 504 may comprise, but is not limited to, volatile (e.g.
random access memory (RAM)), non-volatile (e.g. read-only memory (ROM)), flash memory, or any combination or memory. System memory 504 may include operating system 505, and one or more programming modules 506. Operating system 505, for example, may be suitable for controlling computing device 500's operation. In one embodiment, programming modules 506 may include, for example, a program module 507 for executing the actions of motor 405, control unit 415, sensor 215 for example. Furthermore, embodiments of the invention may be practiced in conjunction with a graphics library, other operating systems, or any other application program and is not limited to any particular application or system. This basic configuration is illustrated in FIG. 5 by those components within a dashed line 520.

[0030] Computing device 500 may have additional features or functionality.
For example, computing device 500 may also include additional data storage devices (removable and/or non-removable) such as, for example, magnetic disks, optical disks, or tape. Such additional storage is illustrated in FIG. 5 by a removable storage 509 and a non-removable storage 510. Computer storage media may include volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information, such as computer readable instructions, data structures, program modules, or other data. System memory 504, removable storage 509, and non-removable storage 510 are all computer storage media examples (i.e. memory storage.) Computer storage media may include, but is not limited to, RAM, ROM, electrically erasable read-only memory (EEPROM), flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store information and which can be accessed by computing device 500. Any such computer storage media may be part of device 500.
Computing device 500 may also have input device(s) 512 such as a keyboard, a mouse, a pen, a sound input device, a camera, a touch input device, etc. Output device(s) 514 such as a display, speakers, a printer, etc. may also be included. The aforementioned devices are only examples, and other devices may be added or substituted.

[0031] Computing device 500 may also contain a communication connection 516 that may allow device 500 to communicate with other computing devices 518, such as over a network in a distributed computing environment, for example, an intranet or the Internet.
Communication connection 516 is one example of communication media.
Communication media may typically be embodied by computer readable instructions, data structures, program modules, or other data in a modulated data signal, such as a carrier wave or other transport mechanism, and includes any information delivery media. The term "modulated data signal"
may describe a signal that has one or more characteristics set or changed in such a manner as to encode information in the signal. By way of example, and not limitation, communication media may include wired media such as a wired network or direct-wired connection, and wireless media such as acoustic, radio frequency (RF), infrared, and other wireless media. The term computer readable media as used herein may include both computer storage media and communication media.

[0032] As stated above, a number of program modules and data files may be stored in system memory 504, including operating system 505. While executing on processing unit 502, programming modules 506 (e.g. program module 507) may perform processes including, for example, one or more of the stages of the process performed by control unit 415, for example, as described above. The aforementioned processes are examples, and processing unit 502 may perform other processes. Other programming modules that may be used in accordance with embodiments of the present invention may include electronic mail and contacts applications, word processing applications, spreadsheet applications, database applications, slide presentation applications, drawing or computer-aided application programs, etc.

[0033] Generally, consistent with embodiments of the invention, program modules may include routines, programs, components, data structures, and other types of structures that may perform particular tasks or that may implement particular abstract data types. Moreover, embodiments of the invention may be practiced with other computer system configurations, including hand-held devices, multiprocessor systems, microprocessor-based or programmable consumer electronics, minicomputers, mainframe computers, and the like.
Embodiments of the invention may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote memory storage devices.

[0034] Furthermore, embodiments of the invention may be practiced in an electrical circuit comprising discrete electronic elements, packaged or integrated electronic chips containing logic gates, a circuit utilizing a microprocessor, or on a single chip (such as a System on Chip) containing electronic elements or microprocessors. Embodiments of the invention may also be practiced using other technologies capable of performing logical operations such as, for example, AND, OR, and NOT, including but not limited to mechanical, optical, fluidic, and quantum technologies. In addition, embodiments of the invention may be practiced within a general purpose computer or in any other circuits or systems.

[0035] Embodiments of the present invention, for example, are described above with reference to block diagrams and/or operational illustrations of methods, systems, and computer program products according to embodiments of the invention. The functions/acts noted in the blocks may occur out of the order as shown in any flowchart. For example, two blocks shown in succession may in fact be executed substantially concurrently or the blocks may sometimes be executed in the reverse order, depending upon the functionality/acts involved.

[0036] While certain embodiments of the invention have been described, other embodiments may exist. Furthermore, although embodiments of the present invention have been described as being associated with data stored in memory and other storage mediums, data can also be stored on or read from other types of computer-readable media, such as secondary storage devices, like hard disks, floppy disks, or a CD-ROM, or other forms of RAM
or ROM. Further, the disclosed methods' stages may be modified in any manner, including by reordering stages and/or inserting or deleting stages, without departing from the invention.

[0037] Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above.
Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.

[0038] We claim: