CA1301442C - Hand-held electric pipe cutter - Google Patents
Hand-held electric pipe cutterInfo
- Publication number
- CA1301442C CA1301442C CA000555776A CA555776A CA1301442C CA 1301442 C CA1301442 C CA 1301442C CA 000555776 A CA000555776 A CA 000555776A CA 555776 A CA555776 A CA 555776A CA 1301442 C CA1301442 C CA 1301442C
- Authority
- CA
- Canada
- Prior art keywords
- pipe
- housing
- jaw
- housing means
- pipe cutter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D21/00—Machines or devices for shearing or cutting tubes
- B23D21/04—Tube-severing machines with rotating tool-carrier
Abstract
ABSTRACT OF THE DISCLOSURE
The disclosure herein describes a hand-held electric pipe cutter that houses an electric motor to drive a rotatable C-shaped pipe receiving and cutting jaw. The jaw includes two cylindrical housings which are operatively connected to the motor and rotatably mounted relative to one another. One of the housings has a cam surface on which rides a cam follower on the other housing. The outer surfaces of the housings display gear wheels, the number of teeth varying from one wheel to the other so that, for a given number of turns of one housing, the other housing has turned one additional rotation thereby causing a cutting blade in the one housing to progressively penetrate into and cut the pipe to be cut.
The disclosure herein describes a hand-held electric pipe cutter that houses an electric motor to drive a rotatable C-shaped pipe receiving and cutting jaw. The jaw includes two cylindrical housings which are operatively connected to the motor and rotatably mounted relative to one another. One of the housings has a cam surface on which rides a cam follower on the other housing. The outer surfaces of the housings display gear wheels, the number of teeth varying from one wheel to the other so that, for a given number of turns of one housing, the other housing has turned one additional rotation thereby causing a cutting blade in the one housing to progressively penetrate into and cut the pipe to be cut.
Description
FIELD OF THE INVENTION
The present invention pertains to a hand-held pipe cutter adapted to cut hollow tubular pipes.
BACKGROUND OF THE INVENTION
Hand-held pipe cutters are known. For example, Canadian patent 1,086,045 issued September 23, 1980 to A. Courty describes a tube cutter with a ratchet handle and a C-shaped head defining a lateral opening through which a tube may be inserted. A knob is rotated to tighten the jaw against the tube contacting a cutting wheel. The handle is actuated back and forth along a limited angle of rotation to rotate step-by-step the cutting wheel around the tube.
Such conventional pipe cutters are manually operable and require the user to work in a given free area where the back-and-forth actuation of the device renders it difficult to cut certain pipes which are difficult to access.
OBJECTS AND STATEMENT OF THE INVENTION
It is an object of the present invention to provide a cutter for pipes which is simple to use and can carry out the cutting operation in a much quicker fashion than conventional manually-operated pipe cutters.
It also an object of the present invention to provide a pipe cutter which can be used in areas where the pipe to be cut is very limited. Once the pipe is 13~J~44;:
grasped, it can be cut.
The present invention therefore relates to a hand-held electric pipe cutter which comprises, in its broadest aspect, a body having a handle portion and a head portion; an electric motor mounted in the head portion, a rotatable C-shaped pipe receiving and cutting jaw also mounted in the head portion and defining a lateral opening to receive a pipe to be cut;
and rotational drive transmission means mounted between the motor and the jaw for rotating the jaw. The jaw consists of first cylindrical housing means including first gear means engageable with the drive transmission means, the first cylindrical means defining a cam surface. The jaw also includes second cylindrical housing means including second gear means engageable with the drive transmission means and cutting means engageable with the outer surface of a pipe received in the jaw. The second cylindrical housing means include a cam following means adapted to ride on the cam surface of the first housing means. The gear ratio of the first and second gear means on the first and second housing means is predetermined to provide the first housing means with one full rotation in addition to the predetermined number of rotations of the second housing means whereby the cutting means progressively penetrate and cut into the pipe as both first and second housing means are rotated.
In one form of the invention, the second housing means include two segments, one of which displays a rotatable cutting blade while the other includes roller means which contact the pipe to be cut and forces it against the cutting blade as the housing means are rotated.
In another embodiment of the invention, the two segments are radially movable relative to one another and spring means are provided for returning the blade to its initial position after the pipe is cut.
The handle portion of the pipe cutter may define a housing for receiving one or more batteries.
Alternatively, the pipe cutter may be connected to an electrical outlet.
Other objects and further scope of applicability of the present invention will become apparent from the detailed description given hereinafter. It should be understood, however, that this detailed description, while indicating preferred embodiments of the invention, is given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art.
IN THE DRAWINGS:
Fig. 1 is a perspective view of a hand-held electric pipe cutter made in accordance with the 13~1442 present invention;
Fig. 2 is a perspective view of the pipe cutter showing components of the head portion and of the handle portion;
Fig. 3 is an exploded view showing the various components of the C-shaped jaw mounted in the head portion of the pipe cutter;
Fig. 4 is a fragmentary front view, inside the jaw, showing the assembled components; and Fig. 5 is a side view showing the cutting blade engaging a pipe to be cut.
DESCRIPTION OF A PREFERRED EMBODIMENT
Referring to Fig. 1, there is shown a hand-held pipe cutter, generally denoted 10, defining a gun-shaped body formed of two symmetrical half-portions 12 and 14 which are secured together by means of a series of screws 16. Body 10 displays a head portion 18 and a handle portion 20.
Referring to Fig. 2, an electric motor 22 is mounted inside the head portion 18. The motor drives a shaft 24, one end of which is provided with a frustro-conical gear wheel 26. A C-shaped jaw 28 is operatively connected to the electric moLor through a gear arrangement that includes a large gear wheel 30 appropriately driven by gear wheel 26 and driving a pair of gear wheels 32 and 34. Gear wheel 34 is coupled with a gear wheel 36 by means of a shaft 38 1301~2 while gear wheel 32 is similarly coupled to another gear wheel (not shown). Hence, gear wheels 34 and 36 are paired while gear wheel 32 is paired with the non-illustrated gear wheel. The separation between the pairs of gears wheels (for example, between wheel 32 and 34) is greater than the opening of the jaw to maintain continuous drive between the jaw and the drive transmission assembly.
Operation of the electric motor 22 is carried out by means of a battery 40 which is housed in the handle portion 20. An actuator 42 is provided for operating motor 22; means may be provided to vary the speed of the electric motor by varying the depression of the actuator 42 in the handle 20. Also, a button 44 is provided to reverse the rotation of the electric motor, if needed Alternatively, the cutter may be connected to an electrical outlet.
Referring to Figs. 3 and 4, the various components of the jaw 28 will now be described. It comprises a first cylindrical housing 46 defining a C-shaped configuration and displaying over its outer wall, a series of teeth 48. The inner wall of the housing displays a cam surface 50, the function of which will be described hereinafter.
The jaw also comprises a second cylindrical housing 52, having a C-shaped configuration, its outer ~L3r~1442 wall displaying a series of teeth 54.
Inside housing 52 are received two diametrically opposed segments 55 and 56. The lower segment 56 is pivotable about pin 57 and relative to the upper segment 55. The latter defines an inner cavity displaying a shape to receive therein the top surfaces of a roller support 60 to which is mounted a series of rollers 62, 64 and 66 extending in parallel axial alignment with the central axis of the jaw. A
screw 61 secures the roller support to segment 55. The lower segment 56 has a cavity 68 in which is rotatably retained a circular cutting blade 70. The lower segment 56 also includes a cam follower 72 mounted on a pin 73 fixed to the side wall of the segment; this follower is adapted to roll along the cam surface 50 of the first housing 46 when the components are assembled.
The two housings 46 and 52 are spaced from one another by means of an assembly of three segments 74, 75 and 76. Cavities 78 and 80 are defined in segments 74 and 76 and have a shape corresponding to that of cavity of the upper segment 55 so as to also receive the roller support 60 therein.
The assembly of the various components shown in figure 3 will now be given.
Elements 75 and 76 are inserted in the housing 46 by positioning the extremity 100 of segment 75 and the extremity 102 of segment 76 in the annular ~30~442 recess 104 on the inside wall of the housing 46.
Segment 75 is secured to segment 74 by means of a series of screws 82. Then, the support roller 60 is placed within the cavity of the upper segment 55 and secured by means of screw 61. The various segments 74 and 75, 76 received in housing 46 are secured together by means of screws 84. The relative rotational connection of housings 46 and 52 is due to the annular edges 100 and 102 which are engaged in recess 104.
Also, this engagement allows rotation of housing 46 relative to housing 52 and all of its assembled segments.
In the operation (see Fig. 5) of cutting a pipe 106 laterally inserted in the C-shaped jaw, the motor 22 causes the rotation of the two housings 46 and 52. However, the difference in teeth ratio between wheels 34 and 36 causes a different rotation of the two housings. This gear ratio is such that, for a full rotation of housing 52, housing 46 makes slightly more than one rotation so that for a complete cutting operation, where, for example, housing 52 has made twelve rotations, housing 46 will have made thirteen rotations, so that, during the twelve rotations of housing 52, the cam follower 72 has slightly moved on the cam surface 50 thereby progressively forcing blade 70 into the pipe to be cut. Therefore, at the end of the operation, the blade is in its most closed position 130144;~
on the tube so that the latter is completely cut. The cam follower then returns to its original position on the cam surface (i.e. radially outward of the central axis of the jaw), when the two lateral openings of the housings come once again in registery, spring 58 assisting in the returning of segment 56 against the inner wall of the housing 52.
Although the invention has been described above in relation to one specific form, it will be evident to a person skilled in the art that it may be refined and modified in various ways. For exemple, cam followers of various outer diameters may be mounted on pin 73 so as to cut pipes of varying diameters. It is therefore wished to have it understood that the present invention should not be limited in interpretation except by the terms of the following claims.
The present invention pertains to a hand-held pipe cutter adapted to cut hollow tubular pipes.
BACKGROUND OF THE INVENTION
Hand-held pipe cutters are known. For example, Canadian patent 1,086,045 issued September 23, 1980 to A. Courty describes a tube cutter with a ratchet handle and a C-shaped head defining a lateral opening through which a tube may be inserted. A knob is rotated to tighten the jaw against the tube contacting a cutting wheel. The handle is actuated back and forth along a limited angle of rotation to rotate step-by-step the cutting wheel around the tube.
Such conventional pipe cutters are manually operable and require the user to work in a given free area where the back-and-forth actuation of the device renders it difficult to cut certain pipes which are difficult to access.
OBJECTS AND STATEMENT OF THE INVENTION
It is an object of the present invention to provide a cutter for pipes which is simple to use and can carry out the cutting operation in a much quicker fashion than conventional manually-operated pipe cutters.
It also an object of the present invention to provide a pipe cutter which can be used in areas where the pipe to be cut is very limited. Once the pipe is 13~J~44;:
grasped, it can be cut.
The present invention therefore relates to a hand-held electric pipe cutter which comprises, in its broadest aspect, a body having a handle portion and a head portion; an electric motor mounted in the head portion, a rotatable C-shaped pipe receiving and cutting jaw also mounted in the head portion and defining a lateral opening to receive a pipe to be cut;
and rotational drive transmission means mounted between the motor and the jaw for rotating the jaw. The jaw consists of first cylindrical housing means including first gear means engageable with the drive transmission means, the first cylindrical means defining a cam surface. The jaw also includes second cylindrical housing means including second gear means engageable with the drive transmission means and cutting means engageable with the outer surface of a pipe received in the jaw. The second cylindrical housing means include a cam following means adapted to ride on the cam surface of the first housing means. The gear ratio of the first and second gear means on the first and second housing means is predetermined to provide the first housing means with one full rotation in addition to the predetermined number of rotations of the second housing means whereby the cutting means progressively penetrate and cut into the pipe as both first and second housing means are rotated.
In one form of the invention, the second housing means include two segments, one of which displays a rotatable cutting blade while the other includes roller means which contact the pipe to be cut and forces it against the cutting blade as the housing means are rotated.
In another embodiment of the invention, the two segments are radially movable relative to one another and spring means are provided for returning the blade to its initial position after the pipe is cut.
The handle portion of the pipe cutter may define a housing for receiving one or more batteries.
Alternatively, the pipe cutter may be connected to an electrical outlet.
Other objects and further scope of applicability of the present invention will become apparent from the detailed description given hereinafter. It should be understood, however, that this detailed description, while indicating preferred embodiments of the invention, is given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art.
IN THE DRAWINGS:
Fig. 1 is a perspective view of a hand-held electric pipe cutter made in accordance with the 13~1442 present invention;
Fig. 2 is a perspective view of the pipe cutter showing components of the head portion and of the handle portion;
Fig. 3 is an exploded view showing the various components of the C-shaped jaw mounted in the head portion of the pipe cutter;
Fig. 4 is a fragmentary front view, inside the jaw, showing the assembled components; and Fig. 5 is a side view showing the cutting blade engaging a pipe to be cut.
DESCRIPTION OF A PREFERRED EMBODIMENT
Referring to Fig. 1, there is shown a hand-held pipe cutter, generally denoted 10, defining a gun-shaped body formed of two symmetrical half-portions 12 and 14 which are secured together by means of a series of screws 16. Body 10 displays a head portion 18 and a handle portion 20.
Referring to Fig. 2, an electric motor 22 is mounted inside the head portion 18. The motor drives a shaft 24, one end of which is provided with a frustro-conical gear wheel 26. A C-shaped jaw 28 is operatively connected to the electric moLor through a gear arrangement that includes a large gear wheel 30 appropriately driven by gear wheel 26 and driving a pair of gear wheels 32 and 34. Gear wheel 34 is coupled with a gear wheel 36 by means of a shaft 38 1301~2 while gear wheel 32 is similarly coupled to another gear wheel (not shown). Hence, gear wheels 34 and 36 are paired while gear wheel 32 is paired with the non-illustrated gear wheel. The separation between the pairs of gears wheels (for example, between wheel 32 and 34) is greater than the opening of the jaw to maintain continuous drive between the jaw and the drive transmission assembly.
Operation of the electric motor 22 is carried out by means of a battery 40 which is housed in the handle portion 20. An actuator 42 is provided for operating motor 22; means may be provided to vary the speed of the electric motor by varying the depression of the actuator 42 in the handle 20. Also, a button 44 is provided to reverse the rotation of the electric motor, if needed Alternatively, the cutter may be connected to an electrical outlet.
Referring to Figs. 3 and 4, the various components of the jaw 28 will now be described. It comprises a first cylindrical housing 46 defining a C-shaped configuration and displaying over its outer wall, a series of teeth 48. The inner wall of the housing displays a cam surface 50, the function of which will be described hereinafter.
The jaw also comprises a second cylindrical housing 52, having a C-shaped configuration, its outer ~L3r~1442 wall displaying a series of teeth 54.
Inside housing 52 are received two diametrically opposed segments 55 and 56. The lower segment 56 is pivotable about pin 57 and relative to the upper segment 55. The latter defines an inner cavity displaying a shape to receive therein the top surfaces of a roller support 60 to which is mounted a series of rollers 62, 64 and 66 extending in parallel axial alignment with the central axis of the jaw. A
screw 61 secures the roller support to segment 55. The lower segment 56 has a cavity 68 in which is rotatably retained a circular cutting blade 70. The lower segment 56 also includes a cam follower 72 mounted on a pin 73 fixed to the side wall of the segment; this follower is adapted to roll along the cam surface 50 of the first housing 46 when the components are assembled.
The two housings 46 and 52 are spaced from one another by means of an assembly of three segments 74, 75 and 76. Cavities 78 and 80 are defined in segments 74 and 76 and have a shape corresponding to that of cavity of the upper segment 55 so as to also receive the roller support 60 therein.
The assembly of the various components shown in figure 3 will now be given.
Elements 75 and 76 are inserted in the housing 46 by positioning the extremity 100 of segment 75 and the extremity 102 of segment 76 in the annular ~30~442 recess 104 on the inside wall of the housing 46.
Segment 75 is secured to segment 74 by means of a series of screws 82. Then, the support roller 60 is placed within the cavity of the upper segment 55 and secured by means of screw 61. The various segments 74 and 75, 76 received in housing 46 are secured together by means of screws 84. The relative rotational connection of housings 46 and 52 is due to the annular edges 100 and 102 which are engaged in recess 104.
Also, this engagement allows rotation of housing 46 relative to housing 52 and all of its assembled segments.
In the operation (see Fig. 5) of cutting a pipe 106 laterally inserted in the C-shaped jaw, the motor 22 causes the rotation of the two housings 46 and 52. However, the difference in teeth ratio between wheels 34 and 36 causes a different rotation of the two housings. This gear ratio is such that, for a full rotation of housing 52, housing 46 makes slightly more than one rotation so that for a complete cutting operation, where, for example, housing 52 has made twelve rotations, housing 46 will have made thirteen rotations, so that, during the twelve rotations of housing 52, the cam follower 72 has slightly moved on the cam surface 50 thereby progressively forcing blade 70 into the pipe to be cut. Therefore, at the end of the operation, the blade is in its most closed position 130144;~
on the tube so that the latter is completely cut. The cam follower then returns to its original position on the cam surface (i.e. radially outward of the central axis of the jaw), when the two lateral openings of the housings come once again in registery, spring 58 assisting in the returning of segment 56 against the inner wall of the housing 52.
Although the invention has been described above in relation to one specific form, it will be evident to a person skilled in the art that it may be refined and modified in various ways. For exemple, cam followers of various outer diameters may be mounted on pin 73 so as to cut pipes of varying diameters. It is therefore wished to have it understood that the present invention should not be limited in interpretation except by the terms of the following claims.
Claims (9)
1. A hand-held electric pipe cutter comprising:
a) a body having a handle portion and a head portion;
b) an electric motor mounted in said head portion;
c) a rotatable C-shaped pipe receiving and cutting jaw mounted in said head portion and operatively connected to said motor; said jaw defining a lateral opening for receiving a pipe to be cut; and d) rotational drive transmission means mounted in said head portion between said motor and said jaw for rotating said jaw;
said jaw consisting of i) first cylindrical housing means including first gear means engageable with said drive transmission means, said first cylindrical housing means defining a cam surface thereon;
ii) second cylindrical housing means including second gear means engageable with said drive transmission means and cutting means adapted to engage the outer surface of a pipe when received in said jaw;
said second cylindrical housing means including a cam following means adapted to ride on said cam surface of said first housing means;
the gear ratio of said first and second gear means on said first and second housing means being predetermined to provide said first housing means with one full rotation in addition to the predetermined number of rotations of said second housing means whereby said cutting means progressively penetrate and cut into said pipe to be cut as both said first and second housing means are rotated by said motor.
a) a body having a handle portion and a head portion;
b) an electric motor mounted in said head portion;
c) a rotatable C-shaped pipe receiving and cutting jaw mounted in said head portion and operatively connected to said motor; said jaw defining a lateral opening for receiving a pipe to be cut; and d) rotational drive transmission means mounted in said head portion between said motor and said jaw for rotating said jaw;
said jaw consisting of i) first cylindrical housing means including first gear means engageable with said drive transmission means, said first cylindrical housing means defining a cam surface thereon;
ii) second cylindrical housing means including second gear means engageable with said drive transmission means and cutting means adapted to engage the outer surface of a pipe when received in said jaw;
said second cylindrical housing means including a cam following means adapted to ride on said cam surface of said first housing means;
the gear ratio of said first and second gear means on said first and second housing means being predetermined to provide said first housing means with one full rotation in addition to the predetermined number of rotations of said second housing means whereby said cutting means progressively penetrate and cut into said pipe to be cut as both said first and second housing means are rotated by said motor.
2. A pipe cutter as defined in claim 1, wherein said second housing means include a first pair of cooperating segments; said cutting means consisting of a rotatable blade mounted in one of said segments and of roller means mounted in a second of said segments contacting said pipe to be cut and forcing said pipe against said cutting blade as said housing means are rotated.
3. A pipe cutter as defined in claim 2, wherein said segments are radially movable relative to one another and include spring means connected therebetween for returning said blade to an initial position after said pipe is cut.
4. A pipe cutter as defined in claim 2, wherein said cam following means are mounted to said first segment.
5. A pipe cutter as defined in claim 1, wherein both said gear means on said first and second housing means consist of a series of teeth circumferential mounted exteriorily on said housing means.
6. A pipe cutter as defined in claim 5, wherein said drive transmission means consist of a pair of gear wheels for each of the first and second housing means;
the gear wheel of one pair being coupled with a gear wheel of the other pair; the separation between two gear wheels of one pair is greater than the gap defined by the lateral opening of the jaw.
the gear wheel of one pair being coupled with a gear wheel of the other pair; the separation between two gear wheels of one pair is greater than the gap defined by the lateral opening of the jaw.
7. A pipe cutter as defined in claim 1, wherein said handle portion defines a battery-receiving housing.
8. A pipe cutter as defined in claim 1, wherein said handle portion comprises means for varying the speed of said motor.
9. A pipe cutter as defined in claim 1, wherein said handle portion comprises means for reversing the rotational speed of said motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000555776A CA1301442C (en) | 1988-01-04 | 1988-01-04 | Hand-held electric pipe cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000555776A CA1301442C (en) | 1988-01-04 | 1988-01-04 | Hand-held electric pipe cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1301442C true CA1301442C (en) | 1992-05-26 |
Family
ID=4137186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000555776A Expired - Lifetime CA1301442C (en) | 1988-01-04 | 1988-01-04 | Hand-held electric pipe cutter |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1301442C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2419313A (en) * | 2004-10-22 | 2006-04-26 | Philip John Gordon | A pipe cutting device |
| WO2009006588A1 (en) * | 2007-07-03 | 2009-01-08 | Milwaukee Electric Tool Corporation | Pipe cutter |
| WO2009070357A1 (en) * | 2007-11-28 | 2009-06-04 | Milwaukee Electric Tool Corporation | Pipe cutter |
| US8266991B2 (en) | 2007-03-15 | 2012-09-18 | Milwaukee Electric Tool Corporation | Pipe cutter |
-
1988
- 1988-01-04 CA CA000555776A patent/CA1301442C/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2419313B (en) * | 2004-10-22 | 2009-06-03 | Philip John Gordon | A pipe cutting device |
| GB2419313A (en) * | 2004-10-22 | 2006-04-26 | Philip John Gordon | A pipe cutting device |
| US10046470B2 (en) | 2007-03-15 | 2018-08-14 | Milwaukee Electric Tool Corporation | Pipe cutter |
| US9302402B2 (en) | 2007-03-15 | 2016-04-05 | Milwaukee Electric Tool Corporation | Pipe cutter |
| US8266991B2 (en) | 2007-03-15 | 2012-09-18 | Milwaukee Electric Tool Corporation | Pipe cutter |
| US8763257B2 (en) | 2007-03-15 | 2014-07-01 | Milwaukee Electric Tool Corporation | Pipe cutter |
| US8875404B2 (en) | 2007-07-03 | 2014-11-04 | Milwaukee Electric Tool Corporation | Pipe cutter |
| WO2009006588A1 (en) * | 2007-07-03 | 2009-01-08 | Milwaukee Electric Tool Corporation | Pipe cutter |
| GB2464850A (en) * | 2007-07-03 | 2010-05-05 | Milwaukee Electric Tool Corp | Pipe cutter |
| GB2464850B (en) * | 2007-07-03 | 2012-04-04 | Milwaukee Electric Tool Corp | Pipe cutter |
| US8683704B2 (en) | 2007-07-03 | 2014-04-01 | Milwaukee Electric Tool Corporation | Pipe cutter |
| WO2009070357A1 (en) * | 2007-11-28 | 2009-06-04 | Milwaukee Electric Tool Corporation | Pipe cutter |
| GB2468241B (en) * | 2007-11-28 | 2012-01-11 | Milwaukee Electric Tool Corp | Pipe cutter |
| GB2468241A (en) * | 2007-11-28 | 2010-09-01 | Milwaukee Electric Tool Corp | Pipe cutter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |