US20200331130A1 - Hammer for installing a gasket into a joint between two pipes - Google Patents
Hammer for installing a gasket into a joint between two pipes Download PDFInfo
- Publication number
- US20200331130A1 US20200331130A1 US16/774,413 US202016774413A US2020331130A1 US 20200331130 A1 US20200331130 A1 US 20200331130A1 US 202016774413 A US202016774413 A US 202016774413A US 2020331130 A1 US2020331130 A1 US 2020331130A1
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- United States
- Prior art keywords
- gasket
- hammer
- substantially rectangular
- arm
- strike surface
- 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.)
- Abandoned
Links
- 238000009434 installation Methods 0.000 description 3
- 239000011449 brick Substances 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/0092—Tools moving along strips, e.g. decorating or sealing strips, to insert them in, or remove them from, grooves or profiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D1/00—Hand hammers; Hammer heads of special shape or materials
- B25D1/14—Hand hammers; Hammer heads of special shape or materials having plural striking faces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
- B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/0028—Tools for removing or installing seals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D1/00—Hand hammers; Hammer heads of special shape or materials
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49863—Assembling or joining with prestressing of part
- Y10T29/4987—Elastic joining of parts
- Y10T29/49872—Confining elastic part in socket
Definitions
- This invention relates to hammers in general, and more particularly to a novel hammer for installing a gasket into a joint between two pipes.
- a large rubber gland or “gasket” is typically installed at the joint between two pipes. See, for example, FIG. 1 which shows two pipes 5 , 10 meeting at a joint 15 .
- Joint 15 is typically characterized by a gap 20 between the two pipes.
- a gasket 25 is disposed in gap 20 so as to fludically seal joint 15 .
- this type of joint is sometimes referred to as a “mechanical joint”.
- Gasket 25 is typically installed into gap 20 , between pipes 5 , 10 , by striking the gasket with a hammer so as to drive the gasket into the gap between the two pipes and thereby fluidically seal the gap between the two pipes.
- a blunt hammer surface as opposed to striking the gasket with a “pointed” hammer surface (such as that found on brick and claw hammers) since it is important not to damage the gasket during gasket installation.
- a “pointed” hammer surface such as that found on brick and claw hammers
- brick and claw hammers are commonly found at construction sites but their use for installing pipe gaskets is strongly discouraged (and in some cases prohibited) by pipe installation inspectors.
- a hammer comprising a substantially rectangular, non-square strike surface (i.e., a strike surface matching the radial thickness of the gasket) to hammer the gasket into place, since this allows maximum contact with the gasket without striking the adjacent pipe.
- a substantially rectangular, non-square strike surface i.e., a strike surface matching the radial thickness of the gasket
- the user needs to be able to address the gasket “head on” (i.e., facing the radius of the pipe) such that the substantially rectangular, non-square strike surface of the hammer appropriately addresses the gasket.
- this requires the user to “move around” the joint when installing the gasket so as to ensure that the substantially rectangular, non-square strike surface of the hammer always addresses the gasket “head on”.
- the present invention comprises a novel hammer having two opposed substantially rectangular, non-square strike surfaces which are rotationally offset from one another by 90 degrees such that an appropriate substantially rectangular, non-square strike surface may be selected by the user and applied to a gasket by simply rotating the hammer in the user's hands without requiring the user to relocate around the gasket.
- a hammer for installing a gasket into a joint between two pipes, the hammer comprising two opposed substantially rectangular, non-square strike surfaces which are rotationally offset from one another by 90 degrees such that an appropriate substantially rectangular, non-square strike surface may be selected by the user and applied to a gasket by simply rotating the hammer in the user's hands without requiring the user to relocate around the gasket.
- a hammer for installing a gasket into a joint between two pipes comprising:
- a head comprising a first arm, a second arm and a neck, wherein the neck is aligned with, and extends away from, the handle, the first arm extends away from the longitudinal axis of the neck and the handle, and the second arm extends away from the longitudinal axis of the neck and the handle, with the second arm extending in the opposite direction to the first arm;
- the first arm comprises a body terminating in a first substantially rectangular, non-square strike surface, wherein the first substantially rectangular, non-square strike surface is defined by a first height dimension and a first width dimension, with the first width dimension being longer than the first height dimension,
- the second arm comprises a body terminating in a second substantially rectangular, non-square strike surface, wherein the second substantially rectangular, non-square strike surface is defined by a second height dimension and a second width dimension, with the second height dimension being longer than the second width dimension.
- the hammer comprising:
- FIG. 1 is a schematic view of a gasket disposed in a gap between two pipes;
- FIGS. 2-7 are schematic views showing a novel hammer formed in accordance with the present invention.
- FIGS. 8 and 9 are schematic views showing the novel hammer of FIGS. 2-7 being used to install a gasket into the gap between two pipes so as to fluidically seal the joint between the two pipes;
- FIG. 10 is a schematic view showing another novel hammer formed in accordance with the present invention.
- the present invention comprises the provision and use of a novel hammer having two opposed substantially rectangular, non-square strike surfaces which are rotationally offset from one another by 90 degrees, such that an appropriate substantially rectangular, non-square strike surface may be selected by the user and applied to a gasket by simply rotating the hammer in the user's hands without requiring the user to relocate around the gasket.
- Novel hammer 30 formed in accordance with the present invention.
- Novel hammer 30 generally comprises a handle 35 and a head 40 which extends away from one end of handle 35 .
- head 40 generally comprises a first arm 45 , a second arm 50 and a neck 53 .
- Neck 53 is aligned with, and extends away from, handle 35 .
- First arm 45 extends away from the longitudinal axis of neck 53 and handle 35
- second arm 50 extends away from the longitudinal axis of neck 53 and handle 35 , with second arm 50 extending in the opposite direction to first arm 45 .
- First arm 45 and second arm 50 are preferably of equal mass, such that the center of mass of hammer 30 is substantially aligned with the longitudinal axis of neck 53 and handle 35 .
- first arm 45 comprises a body 55 terminating in a substantially rectangular, non-square strike surface 60 .
- Substantially rectangular, non-square strike surface 60 is defined by a height dimension 65 and a width dimension 70 , with width dimension 70 being longer than height dimension 65 .
- substantially rectangular, non-square strike surface 60 is sized and configured so as to substantially match the configuration of a standard gasket when addressing the gasket “head on”, e.g., height dimension 65 is substantially the same as the radial thickness of the gasket, and width dimension 70 is less than the curvature of gasket 25 .
- first arm 45 of hammer 30 to seat that portion of the gasket in the gap between the two pipes.
- the edges of substantially rectangular, non-square strike surface 60 are preferably radiused or chamfered at 75 so as to eliminate sharp edges which could damage a gasket.
- second arm 50 comprises a body 80 terminating in a substantially rectangular, non-square strike surface 85 .
- Substantially rectangular, non-square strike surface 85 is defined by a height dimension 90 and a width dimension 95 , with width dimension 95 being shorter than height dimension 90 .
- substantially rectangular, non-square strike surface 85 is sized and configured so as to substantially match the configuration of a standard gasket when addressing the gasket “tangentially”, e.g., width dimension 95 is substantially the same as the radial thickness of the gasket, and height dimension 90 is less than the curvature of gasket 25 .
- substantially rectangular, non-square strike surface 85 are preferably radiused or chamfered at 100 so as to eliminate sharp edges which could damage a gasket.
- substantially rectangular, non-square strike surface 60 and substantially rectangular, non-square strike surface 85 are opposed to one another, and rotationally offset from one another by 90 degrees, such that an appropriate substantially rectangular, non-square strike surface may be selected by the user and applied to a gasket by simply rotating the hammer in the user's hands without requiring the user to relocate around the gasket.
- first arm 45 and second arm 50 are sized and weighted such that hammer 30 has sufficient mass to deliver a desired force to a gasket when hammer 30 is swung by a user in a confined space, as will hereinafter be discussed.
- head 40 is hardened, polished or coated, etc. so as to keep substantially rectangular, non-square strike surfaces 60 , 85 smooth throughout the life of hammer 30 .
- head 40 is hardened, polished or coated, etc. so as to keep substantially rectangular, non-square strike surfaces 60 , 85 smooth throughout the life of hammer 30 .
- novel hammer 30 can be used to install a gasket for a wide variety of pipeline installations.
- handle 35 may be generally symmetrical, and handle 35 may comprise a tactile feature (e.g., a grip, molding, rubberized coating, etc.) to enhance gripping by the user and for minimizing vibration. Additionally, handle 35 may be brightly colored (e.g., fluorescent yellow, orange, green, etc.) so as to be easily locatable in dark or muddy work environments. Also, if desired, handle 35 may be elongated so as to provide the user with greater reach for accessing a gasket (e.g., where a pipe is located in a trench and the user is installing the gasket from outside the trench).
- a tactile feature e.g., a grip, molding, rubberized coating, etc.
- handle 35 may be brightly colored (e.g., fluorescent yellow, orange, green, etc.) so as to be easily locatable in dark or muddy work environments.
- handle 35 may be elongated so as to provide the user with greater reach for accessing a gasket (e.g., where a pipe is located in
- FIGS. 8 and 9 hammer 30 is shown installing gasket 25 in gap 20 between pipe 5 and pipe 10 .
- the user may select an appropriate substantially rectangular, non-square strike surface of the hammer for addressing a given portion of a gasket by simply rotating the hammer in the user's hand, without the user having to move relative to the gasket.
- hammer 30 may be fabricated in a variety of ways without departing from the scope of the present invention.
- head 40 of hammer 30 may be cast ( FIGS. 2-7 ), and then neck 53 of head 40 secured to handle 35 .
- head 40 of hammer 30 may be forged ( FIG. 10 ), and then neck 53 of head 40 secured to handle 35 .
- head 40 and handle 35 may be formed as a single, integral unit.
- head 40 and handle 35 may be cast ( FIGS. 2-7 ) as a single, integral unit.
- head 40 and handle 35 may be forged ( FIG. 10 ) as a single, integral unit.
- hammer 30 preferably has a “mass” (i.e., weight) of between about 1.0 pound and about 5.0 pounds.
- substantially rectangular, non-square strike surface 60 of first arm 45 of hammer 30 preferably has a height dimension 65 of between about 1 ⁇ 4 inch and about 1.0 inch and a width dimension 70 of between about 1.0 inch and about 4.0 inches
- substantially rectangular, non-square strike surface 85 of hammer 30 preferably has a height dimension 90 of between about 1.0 inch and about 4.0 inches and a width dimension 95 of between about 1 ⁇ 4 inch and about 1.0 inch.
Abstract
A hammer for installing a gasket into a joint between two pipes, the hammer comprising two opposed substantially rectangular, non-square strike surfaces which are rotationally offset from one another by 90 degrees such that an appropriate substantially rectangular, non-square strike surface may be selected by the user and applied to a gasket by simply rotating the hammer in the user's hands without requiring the user to relocate around the gasket.
Description
- This patent application claims benefit of pending prior U.S. Provisional Patent Application Ser. No. 62/396,581, filed Sep. 19, 2016 by John Manning for HAMMER FOR INSTALLING A GASKET (Attorney's Docket No. WOOLFSON-3 PROV), which patent application is hereby incorporated herein by reference.
- This invention relates to hammers in general, and more particularly to a novel hammer for installing a gasket into a joint between two pipes.
- Large water, sewer and gas pipelines are typically made up of sections of pipe which are joined together at a joint. In order to fluidically seal the joint, a large rubber gland or “gasket” is typically installed at the joint between two pipes. See, for example,
FIG. 1 which shows twopipes Joint 15 is typically characterized by agap 20 between the two pipes. Agasket 25 is disposed ingap 20 so as to fludically sealjoint 15. By way of example but not limitation, in the plumbing industry, this type of joint is sometimes referred to as a “mechanical joint”. -
Gasket 25 is typically installed intogap 20, betweenpipes - It has been found that traditional ballpeen hammers lack sufficient mass to drive the gasket into the gap between the pipes.
- It has also been found that traditional sledge hammers are too large for use in
hammering gasket 25 intogap 20, i.e., they are too large to strike the gasket without also striking the adjacent pipe. - It should be appreciated that significant force is typically required to drive the gasket into the gap between the two pipes. Force is generated by a user swinging the hammer, however, the user requires space around the junction of the two pipes in order to swing the hammer and generate a sufficient force to drive the gasket into the gap between the two pipes. This can present a challenge where access to the gasket is limited, e.g., where the two pipes which are to be joined are located in a trench. Furthermore, it is often necessary to access all sides of the joint between the two pipes so as to ensure that the gasket is driven evenly and effectively into the gap between the two pipes. In order to reach all sides of the pipe joint, a user must typically reach over and/or around the joint in order to hammer the gasket into place. Thus, it can be difficult to effectively strike the gasket with the hammer, and/or to generate enough force with the hammer to drive the gasket into the gap between the two pipes, particularly where access to the gasket is limited.
- Ideally, it is preferable to use a hammer comprising a substantially rectangular, non-square strike surface (i.e., a strike surface matching the radial thickness of the gasket) to hammer the gasket into place, since this allows maximum contact with the gasket without striking the adjacent pipe. However, when using a hammer having such a substantially rectangular, non-square strike surface, the user needs to be able to address the gasket “head on” (i.e., facing the radius of the pipe) such that the substantially rectangular, non-square strike surface of the hammer appropriately addresses the gasket. Unfortunately, this requires the user to “move around” the joint when installing the gasket so as to ensure that the substantially rectangular, non-square strike surface of the hammer always addresses the gasket “head on”.
- Thus there is a need for a new and improved hammer which is configured to deliver sufficient force to a gasket in order to install the gasket into the gap at a joint between two pipes. There is also a need for a new and improved hammer which allows a user to efficiently apply a substantially rectangular, non-square strike surface to the gasket without requiring that the user move around the joint between the two pipes so as to ensure that the substantially rectangular, non-square strike surface of the hammer always addresses the gasket “head on”.
- To this end, the present invention comprises a novel hammer having two opposed substantially rectangular, non-square strike surfaces which are rotationally offset from one another by 90 degrees such that an appropriate substantially rectangular, non-square strike surface may be selected by the user and applied to a gasket by simply rotating the hammer in the user's hands without requiring the user to relocate around the gasket.
- In one form of the invention, there is provided a hammer for installing a gasket into a joint between two pipes, the hammer comprising two opposed substantially rectangular, non-square strike surfaces which are rotationally offset from one another by 90 degrees such that an appropriate substantially rectangular, non-square strike surface may be selected by the user and applied to a gasket by simply rotating the hammer in the user's hands without requiring the user to relocate around the gasket.
- In another form of the invention, there is provided a hammer for installing a gasket into a joint between two pipes, the hammer comprising:
- a handle; and
- a head comprising a first arm, a second arm and a neck, wherein the neck is aligned with, and extends away from, the handle, the first arm extends away from the longitudinal axis of the neck and the handle, and the second arm extends away from the longitudinal axis of the neck and the handle, with the second arm extending in the opposite direction to the first arm;
- wherein the first arm comprises a body terminating in a first substantially rectangular, non-square strike surface, wherein the first substantially rectangular, non-square strike surface is defined by a first height dimension and a first width dimension, with the first width dimension being longer than the first height dimension,
- wherein the second arm comprises a body terminating in a second substantially rectangular, non-square strike surface, wherein the second substantially rectangular, non-square strike surface is defined by a second height dimension and a second width dimension, with the second height dimension being longer than the second width dimension.
- In another form of the invention, there is provided a method for installing a gasket into a joint between two pipes, the method comprising:
- providing a hammer for installing a gasket into a joint between two pipes, the hammer comprising:
-
- a handle; and
- a head comprising a first arm, a second arm and a neck, wherein the neck is aligned with, and extends away from, the handle, the first arm extends away from the longitudinal axis of the neck and the handle, and the second arm extends away from the longitudinal axis of the neck and the handle, with the second arm extending in the opposite direction to the first arm;
- wherein the first arm comprises a body terminating in a first substantially rectangular, non-square strike surface, wherein the first substantially rectangular, non-square strike surface is defined by a first height dimension and a first width dimension, with the first width dimension being longer than the first height dimension,
- wherein the second arm comprises a body terminating in a second substantially rectangular, non-square strike surface, wherein the second substantially rectangular, non-square strike surface is defined by a second height dimension and a second width dimension, with the second height dimension being longer than the second width dimension;
- grasping the hammer so that one of the first substantially rectangular, non-square strike surface and the second substantially rectangular, non-square strike surface faces away from the user;
- striking the gasket using that one of the first substantially rectangular, non-square strike surface and the second substantially rectangular, non-square strike surface;
- rotating the hammer within the hand of the user so that the other one of the first substantially rectangular, non-square strike surface and the second substantially rectangular, non-square strike surface faces away from the user; and
- striking the gasket using that other one of the first substantially rectangular, non-square strike surface and the second substantially rectangular, non-square strike surface.
- These and other objects and features of the present invention will be more fully disclosed or rendered obvious by the following detailed description of the preferred embodiments of the invention, which is to be considered together with the accompanying drawings wherein like numbers refer to like parts, and further wherein:
-
FIG. 1 is a schematic view of a gasket disposed in a gap between two pipes; -
FIGS. 2-7 are schematic views showing a novel hammer formed in accordance with the present invention; -
FIGS. 8 and 9 are schematic views showing the novel hammer ofFIGS. 2-7 being used to install a gasket into the gap between two pipes so as to fluidically seal the joint between the two pipes; and -
FIG. 10 is a schematic view showing another novel hammer formed in accordance with the present invention. - The present invention comprises the provision and use of a novel hammer having two opposed substantially rectangular, non-square strike surfaces which are rotationally offset from one another by 90 degrees, such that an appropriate substantially rectangular, non-square strike surface may be selected by the user and applied to a gasket by simply rotating the hammer in the user's hands without requiring the user to relocate around the gasket.
- Looking first at
FIGS. 2 and 3 , there is shown anovel hammer 30 formed in accordance with the present invention.Novel hammer 30 generally comprises ahandle 35 and ahead 40 which extends away from one end ofhandle 35. - More particularly,
head 40 generally comprises afirst arm 45, asecond arm 50 and aneck 53.Neck 53 is aligned with, and extends away from, handle 35.First arm 45 extends away from the longitudinal axis ofneck 53 and handle 35, andsecond arm 50 extends away from the longitudinal axis ofneck 53 and handle 35, withsecond arm 50 extending in the opposite direction tofirst arm 45.First arm 45 andsecond arm 50 are preferably of equal mass, such that the center of mass ofhammer 30 is substantially aligned with the longitudinal axis ofneck 53 and handle 35. - Looking next at
FIGS. 3, 4 and 7 ,first arm 45 comprises abody 55 terminating in a substantially rectangular, non-squarestrike surface 60. Substantially rectangular,non-square strike surface 60 is defined by aheight dimension 65 and awidth dimension 70, withwidth dimension 70 being longer thanheight dimension 65. It will be appreciated that, in a preferred form of the present invention, substantially rectangular,non-square strike surface 60 is sized and configured so as to substantially match the configuration of a standard gasket when addressing the gasket “head on”, e.g.,height dimension 65 is substantially the same as the radial thickness of the gasket, andwidth dimension 70 is less than the curvature ofgasket 25. As a result of this configuration, and as will hereinafter be discussed in greater detail, when the user is addressing the portion of the gasket to be hammered “head on”, the user can usefirst arm 45 ofhammer 30 to seat that portion of the gasket in the gap between the two pipes. The edges of substantially rectangular,non-square strike surface 60 are preferably radiused or chamfered at 75 so as to eliminate sharp edges which could damage a gasket. - Looking next at
FIGS. 5-7 ,second arm 50 comprises abody 80 terminating in a substantially rectangular,non-square strike surface 85. Substantially rectangular,non-square strike surface 85 is defined by aheight dimension 90 and awidth dimension 95, withwidth dimension 95 being shorter thanheight dimension 90. It will be appreciated that, in a preferred form of the present invention, substantially rectangular,non-square strike surface 85 is sized and configured so as to substantially match the configuration of a standard gasket when addressing the gasket “tangentially”, e.g.,width dimension 95 is substantially the same as the radial thickness of the gasket, andheight dimension 90 is less than the curvature ofgasket 25. As a result of this configuration, and as will hereinafter be discussed in greater detail, when the user is addressing the portion of the gasket to be hammered “tangentially”, the user can usesecond arm 50 ofhammer 30 to seat that portion of the gasket in the gap between the two pipes. The edges of substantially rectangular,non-square strike surface 85 are preferably radiused or chamfered at 100 so as to eliminate sharp edges which could damage a gasket. - It should be appreciated that substantially rectangular,
non-square strike surface 60 and substantially rectangular,non-square strike surface 85 are opposed to one another, and rotationally offset from one another by 90 degrees, such that an appropriate substantially rectangular, non-square strike surface may be selected by the user and applied to a gasket by simply rotating the hammer in the user's hands without requiring the user to relocate around the gasket. Furthermore, it will be appreciated thatfirst arm 45 andsecond arm 50 are sized and weighted such thathammer 30 has sufficient mass to deliver a desired force to a gasket whenhammer 30 is swung by a user in a confined space, as will hereinafter be discussed. - In one preferred form of the invention,
head 40 is hardened, polished or coated, etc. so as to keep substantially rectangular, non-square strike surfaces 60, 85 smooth throughout the life ofhammer 30. By providing smooth substantially rectangular, non-square strike surfaces 60, 85, damage to a gasket can be minimized whenhammer 30 is used to install a gasket. - It should also be appreciated that the radial thickness of “standard” gaskets are frequently constant, even for gaskets which are used when connecting pipes ranging from about 3 inches in diameter to about 36 inches or larger in diameter. Thus,
novel hammer 30 can be used to install a gasket for a wide variety of pipeline installations. - If desired, handle 35 may be generally symmetrical, and handle 35 may comprise a tactile feature (e.g., a grip, molding, rubberized coating, etc.) to enhance gripping by the user and for minimizing vibration. Additionally, handle 35 may be brightly colored (e.g., fluorescent yellow, orange, green, etc.) so as to be easily locatable in dark or muddy work environments. Also, if desired, handle 35 may be elongated so as to provide the user with greater reach for accessing a gasket (e.g., where a pipe is located in a trench and the user is installing the gasket from outside the trench).
- Looking now at
FIGS. 8 and 9 , hammer 30 is shown installinggasket 25 ingap 20 betweenpipe 5 andpipe 10. - More particularly, when the user is going to hammer the portion of
gasket 25 which is disposed “head on” to the user (FIG. 8 ), so that the radial thickness of the gasket is presented to the user, the user orients hammer 30 so thatfirst arm 45 addresses the gasket. The user then useshammer 30 to hammergasket 25 into place, with substantially rectangular,non-square strike surface 60 engaging the gasket in the manner shown inFIG. 8 . - Correspondingly, when the user is going to hammer the portion of
gasket 25 which is disposed “tangential” to the user (FIG. 9 ), so that the tangent of the gasket is presented to the user, the user orients hammer 30 so thatsecond arm 50 addresses the gasket. The user then useshammer 30 to hammergasket 25 into place, with substantially rectangular,non-square strike surface 85 engaging the gasket in the manner shown inFIG. 9 . - Thus it will be seen that, with the present invention, the user may select an appropriate substantially rectangular, non-square strike surface of the hammer for addressing a given portion of a gasket by simply rotating the hammer in the user's hand, without the user having to move relative to the gasket.
- It will be appreciated that
hammer 30 may be fabricated in a variety of ways without departing from the scope of the present invention. By way of example but not limitation,head 40 ofhammer 30 may be cast (FIGS. 2-7 ), and thenneck 53 ofhead 40 secured to handle 35. Alternatively,head 40 ofhammer 30 may be forged (FIG. 10 ), and thenneck 53 ofhead 40 secured to handle 35. - It is also possible for
head 40 and handle 35 to be formed as a single, integral unit. By way of example but not limitation,head 40 and handle 35 may be cast (FIGS. 2-7 ) as a single, integral unit. Alternatively,head 40 and handle 35 may be forged (FIG. 10 ) as a single, integral unit. - It is important the
hammer 30 be properly “sized” for its intended use in installing a gasket into a joint between two pipes. - To this end, hammer 30 preferably has a “mass” (i.e., weight) of between about 1.0 pound and about 5.0 pounds.
- And to this end, substantially rectangular,
non-square strike surface 60 offirst arm 45 ofhammer 30 preferably has aheight dimension 65 of between about ¼ inch and about 1.0 inch and awidth dimension 70 of between about 1.0 inch and about 4.0 inches, and substantially rectangular,non-square strike surface 85 ofhammer 30 preferably has aheight dimension 90 of between about 1.0 inch and about 4.0 inches and awidth dimension 95 of between about ¼ inch and about 1.0 inch. - It should be understood that many additional changes in the details, materials, steps and arrangements of parts, which have been herein described and illustrated in order to explain the nature of the present invention, may be made by those skilled in the art while still remaining within the principles and scope of the invention.
Claims (11)
1. A hammer for installing a gasket into a joint between two pipes, the hammer comprising two opposed substantially rectangular, non-square strike surfaces which are rotationally offset from one another by 90 degrees such that an appropriate substantially rectangular, non-square strike surface may be selected by the user and applied to a gasket by simply rotating the hammer in the user's hands without requiring the user to relocate around the gasket.
2. A hammer for installing a gasket into a joint between two pipes, the hammer comprising:
a handle; and
a head comprising a first arm, a second arm and a neck, wherein the neck is aligned with, and extends away from, the handle, the first arm extends away from the longitudinal axis of the neck and the handle, and the second arm extends away from the longitudinal axis of the neck and the handle, with the second arm extending in the opposite direction to the first arm;
wherein the first arm comprises a body terminating in a first substantially rectangular, non-square strike surface, wherein the first substantially rectangular, non-square strike surface is defined by a first height dimension and a first width dimension, with the first width dimension being longer than the first height dimension,
wherein the second arm comprises a body terminating in a second substantially rectangular, non-square strike surface, wherein the second substantially rectangular, non-square strike surface is defined by a second height dimension and a second width dimension, with the second height dimension being longer than the second width dimension.
3. A hammer according to claim 2 wherein the first arm and the second arm are preferably of equal mass, such that the center of mass of the hammer is substantially aligned with the longitudinal axis of the neck and the handle.
4. A hammer according to claim 2 wherein the first height dimension of the first arm is substantially equal to the second width dimension of the second arm, and wherein the first width dimension of the first arm is substantially equal to the second height dimension of the second arm.
5. A hammer according to claim 2 wherein the first substantially rectangular, non-square strike surface is sized and configured so as to substantially match the configuration of a standard gasket when addressing the gasket “head on”, and wherein the second substantially rectangular, non-square strike surface is sized and configured so as to substantially match the configuration of a standard gasket when addressing the gasket “tangentially”.
6. A hammer according to claim 5 wherein the first height dimension of the first substantially rectangular, non-square strike surface, and the second width dimension of the second substantially rectangular, non-square strike surface, is substantially the same as the radial thickness of a standard gasket.
7. A hammer according to claim 5 wherein the first width dimension of the first substantially rectangular, non-square strike surface, and the second height dimension of the second substantially rectangular, non-square strike surface, is less than the curvature of a standard gasket.
8. A hammer according to claim 2 wherein the edges of the first substantially rectangular, non-square strike surface are radiused or chamfered and wherein the edges of the second substantially rectangular, non-square strike surface are radiused or chamfered.
9. A hammer according to claim 2 wherein the hammer has a mass of between about 1.0 pound and about 5.0 pounds.
10. A hammer according to claim 2 wherein the first substantially rectangular, non-square strike surface has a first height dimension of between about ¼ inch and about 1.0 inch and a first width dimension of between about 1.0 inch and about 4.0 inches, and the second substantially rectangular, non-square strike surface has a second height dimension of between about 1.0 inch and about 4.0 inches and a second width dimension of between about ¼ inch and about 1.0 inch.
11.-19. (canceled)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/774,413 US20200331130A1 (en) | 2016-09-19 | 2020-01-28 | Hammer for installing a gasket into a joint between two pipes |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US201662396581P | 2016-09-19 | 2016-09-19 | |
US15/708,752 US10543589B2 (en) | 2016-09-19 | 2017-09-19 | Method for installing a gasket into a joint between two pipes |
US16/774,413 US20200331130A1 (en) | 2016-09-19 | 2020-01-28 | Hammer for installing a gasket into a joint between two pipes |
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US15/708,752 Continuation US10543589B2 (en) | 2016-09-19 | 2017-09-19 | Method for installing a gasket into a joint between two pipes |
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US20200331130A1 true US20200331130A1 (en) | 2020-10-22 |
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Application Number | Title | Priority Date | Filing Date |
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US15/708,752 Active 2037-12-08 US10543589B2 (en) | 2016-09-19 | 2017-09-19 | Method for installing a gasket into a joint between two pipes |
US16/774,413 Abandoned US20200331130A1 (en) | 2016-09-19 | 2020-01-28 | Hammer for installing a gasket into a joint between two pipes |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
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US15/708,752 Active 2037-12-08 US10543589B2 (en) | 2016-09-19 | 2017-09-19 | Method for installing a gasket into a joint between two pipes |
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US (2) | US10543589B2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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USD932860S1 (en) * | 2017-09-19 | 2021-10-12 | Mj-Hammer, Llc | Hammer |
JP7154495B2 (en) * | 2018-08-10 | 2022-10-18 | 株式会社ネリキ | Connection structure between conduit port and pipe end, opening/closing valve device, and removal jig |
CN112610696B (en) * | 2020-12-30 | 2023-06-23 | 昊跃建工(山东)有限公司 | Large-scale pipeline sealing member installation device of municipal administration |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US73141A (en) * | 1868-01-07 | Jacob vigeant |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1822394A (en) * | 1930-05-29 | 1931-09-08 | Ferguson William | Hammer |
US3712284A (en) * | 1971-10-12 | 1973-01-23 | Vaughan & Bushnell Mfg Co | Bricklayer{40 s hammer head having wear-resistant chipping end surfaces |
US7694392B2 (en) * | 2006-12-05 | 2010-04-13 | Touchette Shane M | Impact tools with slidable grip |
-
2017
- 2017-09-19 US US15/708,752 patent/US10543589B2/en active Active
-
2020
- 2020-01-28 US US16/774,413 patent/US20200331130A1/en not_active Abandoned
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US73141A (en) * | 1868-01-07 | Jacob vigeant |
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US20180079060A1 (en) | 2018-03-22 |
US10543589B2 (en) | 2020-01-28 |
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