Deburring device

Abstract

A deburring device includes a cylindrical body with a receptacle for receiving a pipe. The cylindrical body includes an abrasive surface provided in the receptacle, which is configured to simultaneously deburr at least two surfaces of a pipe inserted into the receptacle.

Claims

1. A deburring device for deburring a pipe, the pipe having a distal insertion end, and said deburring device comprising: a cylindrical body, said cylindrical body having a cylindrical wall forming a receptacle for receiving a portion of the pipe therein and having a curved inner annular wall spaced radially inward from said cylindrical wall and forming an inner annular channel between said curved inner annular wall and said cylindrical wall for receiving the distal insertion end of the pipe, and said curved inner annular wall forming a central passageway radially inward of said inner annular channel and of said curved inner annular wall, said central passageway in communication with said receptacle wherein said central passageway and said receptacle form a through passageway through said cylindrical body to allow debris to pass through said cylindrical body when deburring the pipe; and an abrasive surface provided in said receptacle and at said curved inner annular wall of said inner annular channel and configured to simultaneously deburr at least two surfaces of the distal end of the pipe when inserted into said receptacle and into said curved inner annular wall.

2. A deburring device according to claim 1, wherein said cylindrical body comprises a monolythic cylindrical body.

3. The deburring device according to claim 1, wherein said curved inner annular wall includes a surface formed with an abrasive material to form said abrasive surface.

4. The deburring device according to claim 1, wherein said cylindrical body comprises a round cylindrical body.

5. The deburring device according to claim 1, wherein said abrasive surface comprises a ceramic cutting edge impregnated into said curved inner annular wall.

6. The deburring device according to claim 1, wherein said cylindrical body has an exterior surface adapted to assist in manual use of said deburring device.

7. The deburring device according to claim 1, wherein said cylindrical body has an exterior surface adapted to assist in a tool or equipment engaging said deburring device.

8. A deburring device comprising: a cylindrical body, said cylindrical body having a cylindrical wall extending from a first end to a second end thereof and forming a receptacle for receiving a pipe through said first end, and said cylindrical body having a through passageway extending through said cylindrical body from said first end to said second end wherein debris from deburring the pipe can pass through said second end of said cylindrical body; said cylindrical wall being configured to form an annular channel in said receptacle to receive a distal end of the pipe, said annular channel extending radially about said through passageway, and said annular channel configured to extend into the distal end of the pipe when the pipe is inserted into said receptacle and into said annular channel; and an abrasive surface provided in said annular channel for simultaneously deburring at least two surfaces of the pipe inserted therein.

9. A deburring device according to claim 8, wherein said cylindrical body comprises a monolythic cylindrical body.

10. The deburring device according to claim 8, wherein said annular channel includes an annular wall formed with said abrasive surface.

11. The deburring device according to claim 8, wherein said cylindrical body comprises a round cylindrical body.

12. The deburring device according to claim 8, wherein said abrasive surface comprises a ceramic cutting edge impregnated into said cylindrical body.

13. The deburring device according to claim 8, wherein said cylindrical body has an outer surface, said outer surface comprising an abrasive surface or a planar surface to assist in manual use of said deburring device.

14. The deburring device according to claim 8, wherein said cylindrical body has an outer surface with a notch, to assist in a tool or equipment engaging said deburring device.

15. The deburring device according to claim 8, wherein said annular channel is located at said second end.

16. The deburring device according to claim 15, wherein said cylindrical wall forms a perimeter wall and an inner wall spaced inwardly from said perimeter wall at said second end of said cylindrical body, and said annular channel being defined between said inner wall and said perimeter wall.

17. The deburring device according to claim 16, wherein said annular channel includes at least one passageway extending from said receptacle to the exterior of said cylindrical body to allow debris to exit therefrom.

Description

IN THE DRAWINGS

(1) FIG. 1 is a perspective view of the deburring device;

(2) FIG. 2 is a cross-section view thereof, illustrating a pipe inserted into the device;

(3) FIG. 2A is an enlarged cross-section view similar to FIG. 2;

(4) FIG. 2B is a similar view to FIG. 2A illustrating the pipe fully inserted into the device;

(5) FIG. 2C is a similar view to FIG. 2B illustrating the pipe formed with a rounded distal end;

(6) FIG. 3 is a cross-section taken through the device of FIG. 1;

(7) FIG. 4 is another cross-section taken through the device of FIG. 1;

(8) FIG. 5 is a similar view to FIG. 2 with the pipe removed;

(9) FIG. 5A is a similar view to FIG. 5 illustrating a modified device one or more cuts made in the wall of the device;

(10) FIG. 5B is a similar view to FIG. 5A illustrating a pipe fully inserted into the device;

(11) FIG. 5C is a top plan view of the device of FIG. 5A;

(12) FIG. 5D is a bottom plan view of the device of FIG. 5A; and

(13) FIG. 6 is a cross-section of an alternate embodiment of a deburring device.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

(14) Referring to FIG. 1, the numeral 10 generally designates a deburring device. As will be more fully described below, the deburring device 10 is configured to receive a pipe for the purpose of uniformly and, optionally, simultaneously deburring the cut end to clean and/or remove imperfections on the outside of the pipe, and optionally to reshape the cut end of a pipe.

(15) In the illustrated embodiment, deburring device 10 is constructed as a one-piece body from a material or materials, such as metal (e.g. aluminum), nickel alloy, steel (e.g. cold rolled steel), or other ferrous materials including sheet metal, tubing, solid rod, plastic, ceramic, or open web materials and may be formed by either molding, including plastic injection molding, welding, casting, or machining, including machining with a CNC machine, or any other desired manufacturing process. However, it should be understood that deburring device 10 may be formed or assembled from multiple components.

(16) Referring to FIG. 2, the deburring device 10 includes a cylindrical body 12, which forms a receptacle 20. Cylindrical body 12 includes an abrasive surface 14 for deburring a pipe inserted into the receptacle 20 on at least two surfaces, for example the outside of the pipe and/or edges of the pipe at the pipe's distal end. In the illustrated embodiment, abrasive surface 14 is located in an annular channel 16 formed or located, for example, at the lower end of cylindrical body 12 in receptacle 20.

(17) The abrasive surface 14 may be formed from abrasive materials, such as metal pieces, ceramic cutters, micro-honeycomb cutters, knives, sand, diamonds, carbide cutters, or may be formed from knurled surfaces. The abrasive surface may be from by abrasive material inserted, imbedded, sprayed, bonded, woven, or infused on or in the cylindrical body 12 on either side of channel 16. For example, the abrasive surface may be provided in the form of a knurled surface. As will be more fully described below, the abrasive surface may be located so that it uniformly deburrs the inner and outer edges of the cut end of the pipe, while simultaneously removing imperfections from the outer or external surface of the pipe to make it completely smooth, and, if desired, reshaping the cut end of the pipe to form a tapered, bullnose or rounded cut end, such as shown in FIG. 2C.

(18) Referring again to FIG. 2A, device 10 may be formed with outer cylindrical wall 12a and an inner cylindrical wall 12c, which is spaced inwardly from outer cylindrical wall 12a and recessed into receptacle 20 to thereby form annular channel 16 there between. Inner cylindrical wall 12c may be solid or may also include one or more passageways to allow debris to be ejected from device 10, as described below. The abrasive surface may be formed on the inside surface of outer cylindrical wall 12a or inner cylindrical wall 12c or both. Further, the lower end of outer cylindrical wall may 12a be angled inwardly to form a tapered inner surface, as best seen in FIG. 5A.

(19) Referring to FIGS. 2A-2C, annular channel 16 may be sized and shaped (e.g. have a curved or arcuate lower surface) so that the end of the pipe P can be freely and fully inserted into the channel 16 (see also FIG. 5B) and optionally only make contact with abrasive surface 14 at its distal edges E1 and E2 (see e.g. FIG. 2B). As the pipe P is pushed and turned in receptacle 20, edges E1 and E2 will, therefore, contact abrasive surface 14 so that edges E1 and E2 will be deburred and, optionally, reshaped such as shown in FIG. 2C. Alternately, the lower surface of annular channel 16 may be generally flat so that when a pipe is rotated in device 10, the pipe's distal end will remain generally flat after cleaning. As will be more fully described below, the other option is to insert the pipe into the receptacle so that it is only partially inserted into the channel, so that only the outer or exterior surfaces of the pipe may contact with the abrasive surface.

(20) Alternately, channel 16 may be sized so that there is little or no gap between pipe P and inwardly facing side 16b of channel 16 (which is formed at the lower end of inner cylindrical wall 12c) and outwardly facing side 16a of channel 16 (which is formed by outer cylindrical wall 12a). Optionally, similar to as described above, the pipe P may be fully inserted into the channel so that edges E1 and E2 as well as the inner and outer pipe wall surfaces S1 and S2 of pipe P will be deburred by abrasive material 14, with edges E1 and E2 optionally being reshaped as well after the pipe has been rotated in device 10.

(21) Optionally, as noted above, the pipe P need not be fully inserted in to receptacle 20 so that only outer and inner wall surfaces S1 and S2 of pipe P are deburred by the abrasive surface formed at sides 16a, 16b of channel 16.

(22) In the illustrated embodiment, cylindrical body 12 may include passageways 18 formed therein to allow debris from the deburring process to exit device 10. The number and location of passageways 18 may vary, but in the illustrated embodiment comprise four passageways spaced equally around annular channel 16 at opposed sides of cylindrical body 12, for example, at 12 o'clock, 3 o'clock, 6 o'clock, and 9 o'clock. Passageways 18 may be round, and formed, for example, by drilling or may be formed during the forming process of cylindrical body 18.

(23) The depth of channel 16 may vary and depends on the size of the pipe and area of pipe to be deburred. For example, the depth of the channel 16 may fall in a range about 3/16 to 5/16 inches, ¼ to ⅜ inches, or 7/16 to 9/16 inches.

(24) While illustrated with a generally solid annular channel 16 with four passageways 18 (FIG. 3), channel 16 may have fewer or more than four passageways, for example, formed by drilled holes or cuts formed therein to form discrete spaced sections of wall there between to increase the flow of debris exiting from the device. Further, as described in reference to FIG. 5A, cylindrical body 12 may include one or more larger and/or longer passageways formed by cuts 40 to ease manufacturing of the device, which also allow debris to exit from the channel.

(25) Referring again to FIG. 2A, the lower end of cylindrical body 12 may be formed with rounded rim 22, which joins outer and inner cylindrical walls 12a and 12c, and which forms the bottom of channel 16. Referring to FIG. 3, passageways 18 may extend through the rim 22 and extend up into channel 16 through the rim 22, as noted, so as to provide paths for debris to exit from device 10.

(26) Optionally, as noted and best seen in FIGS. 5A-5D, the lower end of cylindrical body 12 may include longer passageways in the form cuts 40 that extend up into the rim (optionally on the inside and/or outside cylindrical walls), which can facilitate manufacturing of the device. These may be in place of the passageways 18 (as shown) or in addition to the passageways 18. The cuts 40 may extend partially up the inner cylindrical wall or extend to its upper free edge 12d (FIGS. 5A and 5B). On the outside cylindrical wall 12a, these cuts 40 may extend above the free edge of the inner cylindrical wall.

(27) Still further, device 10 may be configured as a hand tool that is simple to construct, inexpensive, and capable for anyone to use without any special skill. Simplification in the construction of the invention makes it inexpensive to produce because it has no moving parts, is self-aligning, and is self-cleaning. These aspects increase the longevity and reliability of the invention. In addition, the device can easily be carried by a workman, and may be sized to fit in a work belt or pocket.

(28) As would be understood from FIGS. 2, 2A, and 2B, when a pipe is inserted into device 10, device 10 will deburr the outer and inner edges of the cut end of the pipe. These edges may be straight or flat or may be rounded or tapered (as shown in FIG. 5B). Once deburred, the pipe will have a clean end to allow a coupler with a gasket, or other fitting, to be connected to the pipe end without damaging the gasket.

(29) If a straight or flat cut end is preferred on the pipe, as noted above, the workman may simply insert the pipe into the body and seat it in the receptacle 20. The workman may then slightly back the pipe out of the receptacle 20 so that the pipe is no longer fully seated in the receptacle. The workman can then rotate the body a few times to uniformly remove imperfections from the external surface of the pipe, such as generally shown in FIG. 2A and depending on the depth optionally simultaneously deburr the inner and outer edges of the cut end of the pipe.

(30) Thus, if the cut end of a pipe is cut on an angle, or is not perfectly straight, the receptacle can straighten the cut end by reshaping it into a tapered, bullnose or rounded end, or flat end depending on the shaped of the channel. Before a pipe can be properly joined to a coupler with a gasket, or other fitting, it is preferred to be level and smooth on the external surface of the pipe. Again in this instance, the workman may fully insert the pipe into the cylindrical body and seat it fully in the channel. The workman then rotates the body several times, or until the workman no longer feels any resistance from the pipe, and until the cut end of the pipe has become its desired shape. Again, this allows ease of insertion of the pipe into a coupler with a gasket, or other fitting, preventing any damage to the gasket.

(31) Consequently, it can be appreciated that the device can also be used as a leveling tool in addition to removing imperfections on the external surface of the pipe, which can otherwise prevent a gasket from forming a tight, leak-proof seal against the pipe.

(32) To facilitate insertion of a pipe into device 10, cylindrical body 12 may include a flared rim 12b at its upper end. Further, flared rim 12b reduces the likelihood of a groove being created on the pipe as the pipe is turned in device 10.

(33) Referring to FIG. 6, the numeral 110 designates another embodiment of a deburring device. Deburring device 110 is of similar construction to deburring device 10 but includes a planar annular surface 122 at the lower end of cylindrical wall 112 above which channel 116 is formed and with abrasive material 114 similarly located in channel 116. In this manner, device 110 may be made from a solid stock of material, for example, using CNC, end mills to remove the material to form and shape cutting channel at the lower end of cylindrical body. The passageways can then be drilled or cut into the cylindrical body 112 to allow debris to exit the device. For further details of cylindrical body 112, abrasive material 114, and channel 116 reference is made to the above embodiments.

(34) In any of the above, the abrasive material may also be provided on the outside of the cylindrical body of the devices described herein to allow a workman to manually grip the body for ease in rotating it without slipping.

(35) Alternately or in addition, the outside shape or surface of the cylindrical body of the devices described herein may have two or more flat regions or indentations to allow a worker to grasp the device. For example, in one embodiment the cylindrical body may be formed from a poly-sided cylindrical body so that it has two or more planar surfaces to facilitate either manual operation of the device or so that it can be engaged by a tool or machine.

(36) Therefore, the deburring devices, as noted, may be configured as a hand cleaning, reshaping, and deburring device that will simultaneously deburr at least two surfaces, such as the inner and outer cut end edges, of a pipe uniformly to thereby remove imperfections from the external surface of a pipe that may have been created during manufacturing, and, optionally, to reshape an irregular cut end of a pipe into a tapered, bullnose or rounded shape, or flat shape, if desired.

(37) In another embodiment, the outer surface of the cylindrical body of any of the above devices may include other structures for engagement by a tool or machine. For example, the cylindrical body may include one or more flat regions or notches for engagement by a tool or machine.

(38) Alternately, or in addition, the cylindrical body may be formed with or fitted with a shaft extending, for example, from its central lower wall, to allow the deburring device to be used with a power unit, such as a drill, including a cordless drill.

(39) Consequently, the deburring devices described herein may increase efficiency in the installation process by uniformly deburring the inner and outer edges of the cut end of a pipe to provide a uniform cut end on the pipe.

(40) It should be understood the embodiments described herein may be used to deburr pipes made from a wide variety of wall thicknesses and diameters, and a wide variety of materials.

(41) With respect to the description of the present disclosure, it is to be understood that any changes in the construction of the devices, as illustrated and described herein, may be made within the scope or range of the claims without changing the concept of the present disclosure.

(42) Directional terms, such as “vertical,” “horizontal,” “top,” “bottom,” “upper,” “lower,” “inner,” “inwardly,” “outer” and “outwardly,” are used to assist in describing the invention based on the orientation of the embodiments shown in the illustrations. The use of directional terms should not be interpreted to limit the invention to any specific orientation(s).

(43) The above description is that of current embodiments. Various alterations and changes can be made without departing from the spirit and broader aspects of the disclosure as defined in the appended claims, which are to be interpreted in accordance with the principles of patent law including the doctrine of equivalents. This disclosure is presented for illustrative purposes and should not be interpreted as an exhaustive description of all embodiments of the invention or to limit the scope of the claims to the specific elements illustrated or described in connection with these embodiments. For example, and without limitation, any individual element(s) of the described invention may be replaced by alternative elements that provide substantially similar functionality or otherwise provide adequate operation. This includes, for example, presently known alternative elements, such as those that might be currently known to one skilled in the art, and alternative elements that may be developed in the future, such as those that one skilled in the art might, upon development, recognize as an alternative. Further, the disclosed embodiments include a plurality of features that are described in concert and that might cooperatively provide a collection of benefits. The present disclosure is not limited to only those embodiments that include all of these features or that provide all of the stated benefits, except to the extent otherwise expressly set forth in the issued claims. Any reference to claim elements in the singular, for example, using the articles “a,” “an,” “the” or “said,” is not to be construed as limiting the element to the singular. Any reference to claim elements as “at least one of X, Y and Z” is meant to include any one of X, Y or Z individually, and any combination of X, Y and Z, for example, X, Y, Z; X, Y; X, Z; and Y, Z.