Patent Grant
11648701
The invention is an apparatus for the repeated and accurate cutting a moving extended length of material into discrete pieces of predetermined length.
A variety of manufacturing processes, such as, by way of inclusion and not of limitation, production of disposable personal hygiene products, require that an extended, continuous length of material, referred to herein as a web of material or simply as a web, having a longitudinal (i.e., lengthwise) dimension significantly greater than the other two dimensions (i.e., the axial [width-wise] direction and vertical dimension which defines the thickness of such material and is smaller than the axial direction), be divided, or cut, into discrete pieces of predetermined length with separations commonly perpendicular to the longitudinal dimension. There are a variety of technologies used to accomplish this task, with burst cutting being one of the fundamental processes employed.
With reference to
Also rotatably attached to the support structure 5 is an anvil roll 50 with axis of rotation 56 wherein rotation of the anvil roll 50 is effectuated by an anvil roll motor 55. Removably attached to anvil roll 50 is an adjustable anvil 53 which is adjustable spatially in a direction radial proximally and distally from the center of anvil roll 50. The blade 80 upper edge is proximal and attached to the knife roll 20 and the blade lower end with cutting element 88 is proximal the anvil roll 50 so as to effectuate a cut of web 100 when web 100 passes between knife roll 20 and anvil roll 50 as further described herein. Anvil roll 50 of orbital knife 1, amongst its multiple attributes, serves the anvil 53 function of prior art cutting apparatus P in that it provides a surface against which the cutting element 88 presses to effect a cut of web 100.
As indicated above, the lower end of blade 80 is free (unclamped) to deflect, enabling the cutting element 88 to be positioned proximally anvil 53 to effectuate the cutting operation of web 100 disposed on a conveyor comprised of an infeed conveyor 104 positioned to the posterior of cutting apparatus P and spaced apart from a discharge conveyor 105 positioned to the anterior of cutting apparatus P. Given the spaced-apart nature of infeed conveyor 104 and discharge conveyor 105, a small gap exists between these structures and it is in this gap where cutting element 88 contacts web 100, which is disposed on anvil 53 in the gap, to effectuate a cut of web 100 resulting in individual cut web pieces 101.
The longitudinal axis of the anvil roll 50 is parallel to the longitudinal axis of the knife roll 20. The anvil roll 50 of the cutting apparatus P generally has a curved smooth continuous surface with an axis of curvature parallel to the cutting element 88 of the blade 80. Further, the longitudinal axes of the two rolls are separated by a distance such that when the knife roll 20 is rotated about its longitudinal axis, it cannot pass the parallel surface of the anvil roll 50 (i.e., the surface parallel the cutting element positioned at the lower end of the blade 80) without displacing or deflecting the lower (free) end of the blade 80 on which cutting element 88 is disposed toward the longitudinal axis of knife roll 20. The distance between the location of the cutting element 88 on a deflected blade 80 in a state of maximum working deflection and the position of that same cutting element 88 on that same blade 80 in the undeflected condition is hereinafter referred to as interference or blade deflection and hereinafter the two terms “interference” and “blade deflection” are used interchangeable and have the same meaning. Web 100 passes through cutting apparatus P on the conveyor and is cut, resulting in individual cut web pieces 101, as a result of a load (force) imposed on anvil roll 50 by knife roll 20, causing the pushing of cutting element 88 against anvil 53, with web 100 passing between the cutting element 88 and anvil 53 with which it is in contact. The load (force) required to displace the cutting element 88 on blade 80 away from the undeflected state increases as the interference increases and it is this load (force) that effects the cut in the web 100.
During operation with both rolls 20 and 50 rotating about their respective axes of rotation 26 and 56, web 100 passes between the knife roll 20 and anvil roll 50, with the longitudinal axis (lengthwise or long dimension) of the web 100 (i) passing between the rolls 20 and 50 and in contact anvil 53, and (ii) perpendicular to the rolls' longitudinal axes. The cutting element 88 of the blade 80 is proximal the anvil roll 50 and, in the gap between infeed and discharge conveyors 104 and 105, contacts web 100 disposed on the anvil on the conveyor and positioned between knife roll 20 and anvil roll 50. As web 100 passes between the anvil roll 50 and knife roll 20, the force of the cutting element 88 imparted on the anvil 53 results in the application of a compressive load to the web 100. As the compressive load increases, the tensile stress in the longitudinal dimension of the web 100 and perpendicular to the direction of loading increases according to the Poisson effect until that tensile stress exceeds the level tolerable by the web and the material fractures, resulting in a generally axial cut in the web 100.
In some prior art embodiments, inserted between adjustable anvil 53 and anvil roll 50 is an adjustment member 57 which is attached to anvil roll 50 and is in contact with anvil 53. The positioning of adjustment member 57 between anvil 53 and anvil roll 50 increases or decreases the effective radius of anvil roll 50, thereby increasing or decreasing the interference (overlap) between anvil 53 and blade 80.
In practice, the amount of the referenced blade 80 deflection, referred to as interference, is small. Establishing the correct amount of blade 80 deflection is critical to effectively cutting the web 100. If there is too little deflection, operation results in the web 100 not being fully separated, and too much deflection results in the blade material wearing away at an accelerated rate or fracturing. It is typical in the prior art cutting apparatuses P that operation must be stopped in order to adjust the interference and said adjustment is frequently a tedious trial and error process requiring multiple time-consuming attempts before reaching a suitable outcome. Further, changes in temperature of the equipment during operation can result in detrimental changes to the interference (i.e., as the temperature of the support structure 5 increases due to normal operating conditions the material comprising the support structure 5 expands and the distance between the knife roll 20 center of rotation and the anvil roll 50 center of rotation increases thereby reducing the cutting element 88-to-anvil 53 interference). As such, there exists a need in the prior art to overcome this operational challenge of establishing the correct amount of blade deflection without needing to stop the machine and go through the tedious, time-consuming trial-and-error process of adjusting the cutting apparatus to establish the ideal interference. The present invention provides a means of adjusting the cutting element-to-anvil roll interference while the machine is in operation.
A first aspect of the invention comprises an orbital knife comprising (a) a support structure; (b) a yoke rotatably attached to the support structure having a yoke axis of rotation, wherein the yoke comprises a yoke hub and a plurality of yoke arms; (c) one or more rotatable knife rolls radially displaced from and parallel to the yoke hub and securely connected to at least one of the plurality of yoke arms wherein each knife roll has an axis of rotation; (d) one or more blades attached to each of the one or more knife rolls and comprising a cutting element parallel to the knife roll to which the blade of such cutting element is attached; (e) one or more sun gears rotatably attached to the support structure wherein each sun gear has (1) an axis of rotation concentric with the yoke axis of rotation, (2) associated therewith a sun gear pitch radius, and (3) attached thereto a phasing arm; (f) an anvil roll rotatably attached to the support structure and having an axis of rotation parallel to the yoke axis of rotation; and (g) one or more planet gears each with a planet gear axis of rotation and a planet gear pitch radius, wherein (1) each knife roll has rotatably attached thereto at least one planet gear, (2) each planet gear is mated with one of the one or more sun gears forming a gear train wherein the sun gear drives the planet gear and in each such gear train the planet gear pitch radius is substantially tangential to the sun gear pitch radius, and (3) the planet gear axis of rotation of each planet gear is concentric with the axis of rotation of the knife roll to which the planet gear is attached.
A second aspect of the invention comprises an orbital knife comprising (a) a support structure; (b) a yoke rotatably attached to the support structure having a yoke axis of rotation, wherein the yoke comprises a yoke hub and a plurality of yoke arms; (c) one or more rotatable knife rolls radially displaced from and parallel to the yoke hub and securely connected to at least one of the plurality of yoke arms wherein each knife roll has an axis of rotation; (d) one or more blades attached to each of the one or more knife rolls and comprising a cutting element parallel to the knife roll to which the blade of such cutting element is attached; (e) one or more sun pulleys rotatably attached to the support structure wherein each sun pulley has (1) an axis of rotation concentric with the yoke axis of rotation, (2) associated therewith a sun pulley pitch radius, and (3) attached thereto a phasing arm; (f) an anvil roll rotatably attached to the support structure and having an axis of rotation parallel to the yoke axis of rotation; and (g) one or more planet pulleys each with a planet pulley axis of rotation and a planet pulley pitch radius, wherein (1) each knife roll has attached thereto at least one planet pulley, (2) each planet pulley is joined via a drive belt with one of the one or more sun pulleys wherein rotation of the sun pulley causes rotation of the planet pulley effectuated by the force imparted by the drive belt, and (3) the planet pulley axis of rotation of each planet pulley is concentric with the axis of rotation of the knife roll to which the planet pulley is attached.
A third aspect of the invention comprises an orbital knife comprising (a) a support structure; (b) a yoke rotatably attached to the support structure having a yoke axis of rotation, wherein the yoke comprises a yoke hub and a plurality of yoke arms; (c) one or more rotatable knife rolls radially displaced from and parallel to the yoke hub and securely connected to at least two of the plurality of yoke arms wherein each knife roll has an axis of rotation; (d) one or more blades attached to each of the one or more knife rolls and comprising a cutting element parallel to the knife roll to which the blade of such cutting element is attached; (e) one or more sun gears rotatably attached to the support structure wherein each sun gear has (1) an axis of rotation concentric with the yoke axis of rotation, (2) associated therewith a sun gear pitch radius, and (3) attached thereto a phasing arm; (f) an anvil roll rotatably attached to the support structure and having an axis of rotation parallel to the yoke axis of rotation; (g) one or more idler gears wherein each such idler gear is mated with one of the one or more sun gears; and (h) one or more planet gears each with a planet gear axis of rotation and a planet gear pitch radius, wherein (1) each knife roll has attached thereto at least one planet gear, (2) each planet gear is mated with one of the one or more idler gears that, together with one of the one or more sun gears, forms a gear train wherein the sun gear drives the idler gear which in turn drives the planet gear, and (3) the planet gear axis of rotation of each planet gear is concentric with the axis of rotation of the knife roll to which the planet gear is attached.
By way of example only, specific embodiments of the invention will now be described, with reference to the accompanying drawings.
With reference to
Orbital knife 1 further comprises one or more knife rolls 20 radially displaced from and parallel to yoke hub 11, each of the one or more knife rolls 20 having its own axis of rotation 26. Each of the one or more knife rolls 20 is securely connected to a plurality of yoke arms 12 of yoke 10 using means known in the art, such as a protrusion extending from each end of a knife roll 20 extending through an aperture in yoke arm 12 of yoke 10. In preferred embodiments, orbital knife 1 comprises a plurality of knife rolls 20, more preferably plurality of knife rolls 20 comprises (a) a first knife roll 20(a) securely connected to yoke 10 via first knife roll first yoke arm 12(a1) and first knife roll second yoke arm 12(a2) spaced apart from first knife roll first yoke arm 12(a1) and (b) a second knife roll 20(b) securely connected to yoke 10 via second knife roll first yoke arm 12(b1) and second knife roll second yoke arm 12(b2) spaced apart from second knife roll first yoke arm 12(b1). First knife roll first yoke arm 12(a1) can be attached to, integral with, or separate from second knife roll first yoke arm 12(b1) and first knife roll second yoke arm 12(a2) can be attached to, integral with, or separate from second knife roll second yoke arm 12(b2). Yoke arms 12 are positioned so that the knife roll axis of rotation 26 is parallel to the yoke axis of rotation 16.
Further with reference to
Further with reference to
An embodiment of the present invention of orbital knife 1 further comprises an anvil roll 50 rotatably connected to support structure 5, wherein anvil roll 50 has an axis of rotation 56 parallel to rotational axis 16 of yoke 10. In preferred embodiments of the present invention, orbital knife 1 further comprises one or more oiler rolls 70, wherein each oiler roll 70 (1) is preferably comprised of an absorbent material and (2) receives a slow feed of oil or other lubricating liquid from an oil or liquid reservoir. When a knife roll 20 is proximal the one or more oiler roll 70 by virtue of rotation of yoke 10, the cutting element 88 of blade 80 attached to knife roll 20 contacts oiler roll 70 and a thin coating of oil or other lubricating liquid from oiler roll 70 transfers to cutting element 88 each time knife roll 20 passes oiler roll 70. The lubrication of cutting element 88 of blade 80 improves long-term operation and lifespan of such structures buy reducing wear of the cutting element 88 of blade 80 when it contacts anvil roll 50.
In preferred embodiments of orbital knife 1 comprising a plurality of knife rolls 20(a) and 20(b), first knife roll 20(a) has separably attached thereto first blade 80(a) comprising first blade cutting element 88(a) and second knife roll 20(b) has separably attached thereto second blade 80(b) comprising second blade cutting element 88(b). In preferred embodiments of orbital knife 1 comprising a plurality of knife rolls 20(a) and 20(b) and a rotating yoke 10, web 100 is compressed alternatively between knife rolls 20(a) and 20(b) depending on the rotational position of yoke 10, and anvil roll 50, with web 100 cut into individual cut web pieces 101 alternatively by blade 80(a) attached to knife roll 20(a) when rotation of yoke 10 results in the positioning of knife roll 20(a) proximal anvil roll 50 and blade 80(b) attached to knife roll 20(b) when rotation of yoke 10 results in the positioning of knife roll 20(b) proximal anvil roll 50. Web 100 may or may not be in contact with knife roll 20 to effectuate a cut, with all that is required to effectuate a cut is contact between cutting element 88 of blade 80 and web 100.
Further with reference to
Each planet gear 40 has (a) an axis of rotation concentric with the axis of rotation 26 of the respective knife roll 20 (i.e., the knife roll 20 to which each planet gear 40 is attached; as shown in
In select embodiments of the present invention, yoke 10 may be directly connected to a drive motor 15 (
Further, orbital knife 1 has, for a particular cut setting, a key operational parameter called the cut radius CR [depicted as CR(a) in
The force required to effectuate the rotation of sun gear 30 can be achieved using any means known in the art. In preferred embodiments, orbital knife 1 comprises one or more phasing actuators 90 [depicted in
In preferred embodiments, orbital knife 1 further comprises a phasing arm 32 attached to each of the one or more sun gears 30, each phasing arm 32 having a first end and a second end, wherein (a) the first end of phasing arm 32 is rotatably attached to phasing link 92 and the second end of phasing arm 32 is rigidly attached to sun gear 30, and (b) rotation of phasing arm 32 effectuates rotation of sun gear 30 about its axis of rotation thereby controlling another key operational parameter called the phase angle PA [see
In preferred embodiments of the present invention of orbital knife 1 comprising a plurality of sun gears 30(a) and 30(b), rigidly attached to sun gear 30(a) is phasing arm 32(a) and rigidly attached to sun gear 30(b) is phasing arm 32(b). Force is provided by one or more actuator motors 95 connected to one or more actuators 90, with each motor 95 connected to one actuator 90. In alternative preferred embodiments as shown in
The rotation of the one or more sun gears 30 allows for operational control of phase angle PA of each of the sun gears 30, with in-operation (on the fly) rotation of the one or more sun gears 30 (that is, rotation of the one or more sun gears 30 during active (ongoing) web 100 cutting operations, with such rotation driving planet gear 40, allowing for a change of the cut radius CR of each of the one or more blades 80 resulting in a modification of deflection of cutting element 88 associated with each of the one or more blades 80 attached to each of the one or more knife rolls 20 associated with each such rotating sun gear 30, thus obviating use of an adjustable anvil 53 in prior art cutting apparatus P and adjustment of such anvil 53 to effectuate a change in blade deflection and resulting in an apparatus (i.e., orbital knife 1) that has less parts and is less expensive to acquire and maintain than prior art cutting apparatuses P. In other words, the rotation of sun gear 30 according to the present invention allows a user of orbital knife 1 to change the cut radius CR, and hence blade deflection and the cutting force with which cutting element 88 on blade 80 contacts anvil roll 50, of each of the one or more blades 80 on the fly during operations to allow for a continuous cutting operation during which the optimal blade 80 deflection is maintained without the need for multiple batch (run) operations (i.e., operation of prior art cutting apparatus P with a first cut radius CR, stoppage of operation [defining a first batch {run} operation], modification of prior art cutting apparatus P by adjusting the position of cutting element 88 of blade 80 relative to the center of rotation of the knife roll 20 to effectuate a change of cut radius CR and hence effectuating a change in the blade 80 deflection during the cutting operation or, alternatively, changing the deflection of the blade 80 of cutting apparatus P by changing the position of the anvil 53 relative to the center of rotation of the anvil roll 50 to effectuate a change in the deflection of blade 80 with cutting element 88, with any of the foregoing requiring the aforementioned stoppage of operations of cutting apparatus P to change cutting element 88 deflection and thereafter recommencing operations of cutting apparatus P [defining a second batch {run} operation]). The on-the-fly CR adjustability provided by orbital knife 1 according to the present invention allows for optimal blade interference to make web 100 cutting operations more efficient.
In a cutting operation, cut radius CR is at a maximum when yoke radius YR, which is defined as the straight-line distance from the yoke axis of rotation 16 to the knife roll axis of rotation 26, and the knife radius KR, another key operational parameter defined as the straight-line distance from the knife roll axis of rotation 26 to cutting element 88 of blade 80 of knife roll 20, lie in a common plane as illustrated in
During operation of orbital knife 1 with one or more knife rolls 20 on which is attached a blade 80 with cutting element 88, yoke 10 rotates about its axis of rotation 16, and anvil roll 50 rotates about its axis of rotation 56. In preferred embodiments comprising an actuator 90-phasing link 92-phasing arm 32 arrangement as described herein, rotation of one or more sun gears 30 results from the displacement of a phasing link 92 associated with each sun gear 30, with such displacement of phasing link 92 in preferred embodiments effectuated by actuator 90. Phasing link 92 displacement effectuates displacement of phasing arm 32, which in turn effectuates rotation of the associated sun gear 30. Rotation of the sun gear 30 results in the rotation of the planet gear 40 with which the sun gear 30 is in mesh contact forming a gear train. Sun gear 30 rotation effectuates a rotation of the associated knife roll 20 about such knife roll 20's axis of rotation 26, thereby changing the relationship between the yoke radius YR and the knife radius KR with a corresponding change in the cut radius CR and therefore changing blade 80 deflection.
Web 100 passes through orbital knife 1 on the conveyor comprising two segments, being fed to orbital knife 1 by being disposed on infeed conveyor 104 which is spaced apart from discharge conveyor 105, resulting in a gap between conveyor segments 104 and 105. In the gap, web 100 is disposed on anvil roll 50 positioned below web 100. Rotation of yoke 10 about its axis of rotation 16 results in the positioning of knife roll 20 proximal anvil roll 50 and cutting element 88 of blade 80 attached to knife roll 20 being positioned above web 100 in this gap, with cutting element 88 positioned above and in contact with web 100 which in turn is positioned above and in contact with anvil roll 50. A load (force) is imposed on anvil roll 50 by the blade 80 of knife roll 20 which compresses web 100 in this gap, with web 100 cut into individual cut web pieces 101 by blade 80 of knife roll 20 when rotation of yoke 10 results in the positioning of knife roll 20 proximal anvil roll 50.
In alternative embodiments of the present invention depicted in
Orbital knife 1 further comprises a plurality of knife rolls 20 [in the embodiment depicted in
Moreover, each of the plurality of knife rolls 20 has its own associated planet gear 40 and associated sun gear 30. For example, with respect to the embodiment depicted in
Each of the one or more sun gears 30 is rotatably attached to support structure 5 and has an axis of rotation concentric with yoke rotational axis 16 and a pitch radius such that sun gear 30 pitch diameter is concentric with rotational axis 16 of yoke 10. Each of the one or more planet gears 40 is rigidly or fixedly attached to each of the one or more knife rolls 20, with each of the one or more planet gears 40 (i) in mated contact with one of the one or more sun gears 30 whereby rotation of sun gear 30 effectuates rotation of planet gear 40, (ii) having an axis of rotation concentric with the axis of rotation 26 of the respective knife roll 20 to which such planet gear 40 is attached, and (iii) having a pitch radius substantially tangential to the pitch radius of the sun gear 30 with which the planet gear 40 mates so that rotation of yoke 10 about its axis of rotation 16 while sun gear 30 is held stationary with respect to the support structure 5 which will effectuate a rotation of the associated planet gear 40 and its respective knife roll 20 about its axis of rotation 26.
Further, in such embodiment of the present invention of orbital knife 1 and with reference to
Such embodiment of the present invention of orbital knife 1 further comprises an anvil roll 50 rotatably connected to support structure 5, wherein anvil roll 50 has an axis of rotation 56 parallel to rotational axis 16 of yoke 10. In such embodiment of the present invention of orbital knife 1, web 100 is compressed between anvil roll 50, with which it is in contact in the gap separating conveyor segments 104 and 105, and alternatively between knife rolls 20 [embodiment in
Further, in such embodiment of the present invention of orbital knife 1, the ratio of sun gear 30 pitch radii to the planet gear 40 pitch radii (e.g., ratio of sun gear 30(a) pitch radius to planet gear 40(a) pitch radius, ratio of sun gear 30(b) pitch radius to planet gear 40(b) pitch radius [the foregoing for embodiments depicted in
The force for rotation of yoke 10 and anvil roll 50 of this embodiment of the present invention of orbital knife 1 may be provided by any one of many known methods in the art. In preferred embodiments, orbital knife 1 further comprises a plurality of actuators 90 [actuators 90(a), 90(b), 90(c), and 90(d) in embodiment depicted in
Orbital knife 1 according to such embodiment further comprises a plurality of phasing arms 32, each phasing arm 32 attached to one of the plurality of sun gears 30 [phasing arms 32(a), 32(b), 32(c), and 32(d) attached to sun gears 30(a), 30(b), 30(c), and 30(d), respectively, in the embodiment depicted in
Further, in preferred select embodiments of orbital knife 1 according to this embodiment of the present invention where force for rotation of sun gears 30 is provided through actuator 90, orbital knife 1 further comprises a plurality of actuator motors 95 [actuator motors 95(a), 95(b), 95(c), and 95(d) in the embodiment depicted in
The rotation of plurality of sun gears 30 in the embodiments of orbital knife 1 depicted in
In a cutting operation with the present invention, cut radius CR is at a maximum when yoke radius YR, which is defined as the straight-line distance from the yoke axis of rotation 16 to the knife roll axis of rotation 26, and the knife radius KR, another key operational parameter defined as the straight-line distance from the knife roll axis of rotation 26 to each of the cutting elements 88 of blades 80 of knife rolls 20 lie in a common plane. Moving the knife roll axis of rotation 26 out of the common plane will cause a reduction of cut radius CR and is effectuated by rotation of sun gear 30. In practice, the optimal cut radius CR for any given circumstance is something less than the maximum cut radius CR. Further, the optimal blade 80 deflection with related cut radius CR may change over time depending on operating conditions. In the present invention, maintenance of an optimal blade deflection and associated optimal cut radius CR can be achieved since cut radius CR of each of the one or more blades 80 of orbital knife 1 can be varied during web cutting operation without stopping orbital knife 1 operations as is required of a prior art cutting apparatus P. The orientation of sun gear 30-planet gear 40, wherein sun gear 30 drives planet gear 40, allows for modification of the cut radius CR during operations of orbital knife 1. Further, with each knife roll 20 of the orbital knife 1 according to the present invention having associated therewith a sun gear 30 that is not associated with any other knife roll 20 allows for independent adjustment of each knife roll 20's cut radius CR.
During operation of orbital knife 1 with knife rolls 20(a), 20(b), 20(c), and 20(d) on which is attached blades 80(a), 80(b), 80(c), and 80(d) with cutting element 88(a), 88(b), 88(c), and 88(d), respectively, yoke 10 rotates about its axis of rotation 16, and anvil roll 50 rotates about its axis of rotation 56. In preferred embodiments comprising an actuator 90-phasing link 92-phasing arm 32 arrangement as described herein, rotation of sun gears 30 [in the embodiment depicted in
Web 100 passes through orbital knife 1 on the conveyor comprising two segments, being fed to orbital knife 1 by being disposed on infeed conveyor 104 which is spaced apart from discharge conveyor 105, resulting in a gap between conveyor segments 104 and 105. In the gap, web 100 is disposed on anvil roll 50 positioned below web 100. The aforementioned rotation of knife rolls 20 about axes of rotation 26 results in the alternatively positioning of each of the plurality of knife rolls 20 proximal anvil roll 50 and each of cutting element 88 of blades 80 or 85 attached to knife rolls 20 being alternatively positioned above and in contact with web 100 in this gap, with web 100 in turn positioned above and in contact with anvil roll 50. A load (force) is imposed on anvil roll 50 alternatively by each of the plurality of blades 80 attached to each of the plurality of knife rolls 20 compresses web 100 in this gap, with web 100 cut into individual cut web pieces 101 alternatively by each of the plurality of blades 80 of each of the plurality of knife roll 20 when rotation of yoke 10 results in the alternative positioning of each of the plurality of knife rolls 20 proximal anvil roll 50.
The embodiment of the present invention depicted in
Furthermore, in alternative embodiments of the foregoing embodiment of the present invention (see
An alternative embodiment of the present invention comprising an orbital knife 1 is depicted in
In preferred embodiments of this alternative embodiment of orbital knife 1, yoke 10 is connected to drive motor 15 which provides the rotational force to rotate yoke 10 about yoke rotational axis 16. In yet other preferred embodiments of this alternative embodiment of orbital knife 1, rotation of yoke 10 about yoke rotational axis 16 may be effectuated by any suitable means known in the art to rotate yoke 10.
Orbital knife 1 further comprises one or more knife rolls 20 radially displaced from and parallel to yoke hub 11, each of the one or more knife rolls 20 having its own axis of rotation 26. In certain embodiments of this alternative embodiment, orbital knife 1 comprises a plurality of knife rolls 20(a) and 20(b), with knife roll 20(a) having axis of rotation 26(a) and positioned parallel to yoke hub 11 and knife roll 20(b) having axis of rotation 26(b) and positioned parallel to yoke hub 11. Each of the one or more knife rolls 20 is securely connected to one or more yoke arms 12 of yoke 10 using means known in the art.
Yoke arms 12 are positioned so that the knife roll axis of rotation 26 is parallel to the yoke axis of rotation 16. In preferred embodiments of this alternative embodiment of orbital knife 1 wherein orbital knife 1 comprises a plurality of knife rolls 20(a) and 20(b) such as that shown in
Further, separably attached to each knife roll 20 of orbital knife 1 according to this embodiment of orbital knife 1 is blade 80 comprising a cutting element 88 positioned parallel to the knife roll 20 to which blade 80 is separably attached.
This alternative embodiment of orbital knife 1 further comprises an anvil roll 50 rotatably attached to support structure 5, such anvil roll 50 having anvil roll axis of rotation 56 parallel to the yoke axis of rotation 26. In preferred embodiments of this alternative embodiment of orbital knife 1, anvil roll 50 is connected to drive motor 55 which provides the rotational force to rotate anvil roll 50 about anvil roll rotational axis 56. In yet other preferred embodiments of this alternative embodiment of orbital knife 1, rotation of anvil roll 50 may be effectuated by any suitable means known in the art to rotate anvil roll 50.
Web 100 is compressed between one of the one or more knife rolls 20 and anvil roll 50, with web 100 cut into individual cut web pieces 101 alternatively by the blade 80 attached to the knife roll 20 of such one or more knife rolls 20 when rotation of yoke 10 results in the positioning of such knife roll 20 proximal anvil roll 50. Web 100 may or may not be in contact with knife roll 20 to effectuate a cut, with all that is required to effectuate a cut is contact between cutting element 88 of blade 80 and web 100.
For orbital knife 1 of this embodiment, rotation of the one or more knife rolls 20 is effectuated by a belt and pulley system. Such system comprises one or more sun pulleys 35 wherein each of the one or more sun pulleys 35 is connected to one of the one or more planet pulleys 45 connected to one or more knife rolls 20 wherein each of the one or more sun pulleys 35 has an axis of rotation concentric with the yoke rotational axis 16 of the yoke 10. The one or more sun pulleys 35 may be held stationary relative to support structure 5 such that its pitch diameter is concentric with the rotational axis of the yoke 10 or, alternatively, rotated about the axis of rotation of such sun pulley 35, with rotation of sun pulley 35 effectuated by using any one of many means known in the art.
Further, in such alternative embodiments of orbital knife 1, attached to each knife roll 20 is a planet pulley 45 (i) having an axis of rotation concentric with the axis of rotation of the respective knife roll 20 and (ii) joined via a drive belt 46 with sun pulley 35 wherein drive belt 46 loops around both pulleys 35 and 45 such that rotation of sun pulley 35 causes rotation of planet pulley 45 effectuated by the force imparted by the displaceable drive belt 46 [see
In such embodiment of the orbital knife 1, rotation of the yoke 10 about its axis of rotation 16 while a sun pulley 35 is held stationary with respect to the support structure 5 will effectuate a rotation of the respective planet pulley 45 and rotation of its respective knife roll 20 about its axis of rotation 26. Further, the ratio of the sun pulleys 35 pitch radii and planet pulleys 45 pitch radii is established using any means known in the art such that operation of orbital knife 1 produces a precisely repeating pattern of locations of the cutting element 88 associated with each knife roll 20 with respect to anvil roll 50, which obviates cutting element 88 of blade 80 attached to knife roll 20 impinging or contacting anvil roll 50 during yoke 10 rotation. Further, orbital knife 1 has, for a particular cut setting, a key operational parameter called the cut radius CR [
The force required to effectuate the rotation of sun pulley 35 can be achieved using any means known in the art. In preferred embodiments, orbital knife 1 comprises one or more phasing actuators 90 [depicted in
With reference to
In preferred embodiments of the invention wherein force for rotation of the one or more sun pulleys 35 is provided by one or more actuators 90, orbital knife 1 further comprises a phasing arm 32 attached to each of the one or more sun pulleys 35, each phasing arm 32 having a first end and a second end, wherein (a) the first end of phasing arm 32 is rotatably attached to phasing link 92 and the second end of phasing arm 32 is rigidly attached to sun pulley 35, and (b) rotation of phasing arm 32 effectuates rotation of sun pulley 35 about its axis of rotation thereby controlling the rotational position of the sun pulley 35 relative to the stationary support structure 5 and thus another key operational parameter called the phase angle PA [see
The force required to effectuate the rotation of phasing arm 32 can be achieved using any means known in the art. In preferred embodiments, force is provided by one or more actuator motors 95 connected to one or more actuators 90, with each motor 95 connected to one actuator 90. In alternative preferred embodiments as shown in
The rotation of the one or more sun pulleys 35 allows for operational control of phase angle PA (i.e., a measure of the rotational position of each of the sun pulleys 35 with respect to the stationary support structure 5), with in-operation (on the fly) rotation of the one or more sun pulleys 35 (that is, rotation of the one or more sun pulleys 35 during active (ongoing) web 100 cutting operations driving the one or more planet pulleys 45), allowing for a change of the cut radius CR of each of the one or more blades 80 of orbital knife 1 resulting in a modification of deflection of cutting element 88 associated with each of the one or more blades 80 attached to each of the one or more knife rolls 20 associated with each such rotation sun pulley 35, thus obviating use of an adjustable anvil 53 in prior art cutting apparatus P and adjustment of such anvil 53 to effectuate a change in blade deflection and resulting in an apparatus (i.e., orbital knife 1 according to the present invention) that has less parts and is less expensive to acquire and maintain than prior art prior cutting apparatuses P. In other words, the rotation of sun pulley 35 of orbital knife 1 according to the present invention allows a user of orbital knife 1 to change the cut radius CR, and hence blade deflection and the cutting force with which cutting element 88 on blade 80 contact anvil roll 50, of each of the one or more blades 80 on the fly during operations to allow for a continuous cutting operation during which the optimal blade 80 deflection is maintained without the need for multiple batch (run) operations (i.e., operation of prior art cutting apparatus P with a first cut radius CR, stoppage of operation [defining a first batch {run} operation], modification of prior art cutting apparatus P by adjusting the position of cutting element 88 of blade 80 relative to the center of rotation a of the knife roll 20 to effectuate a change of cut radius CR and hence effectuating a change in the blade 80 deflection during the cutting operation or, alternatively, changing the deflection of the blade 80 of cutting apparatus P by changing the position of the anvil 53 relative to the center of rotation of the anvil roll 50 to effectuate a change in the deflection of blade 80 with cutting element 88, with any of the foregoing requiring the aforementioned stoppage of operations of cutting apparatus P to change cutting element 88 deflection and thereafter recommencing operations of cutting apparatus P [defining a second batch {run} operation]). The on-the-fly CR adjustability provided by orbital knife 1 according to the present invention allows for continuous maintenance of optimal blade interference to make web 100 cutting operations more efficient.
In a cutting operation, cut radius CR is at a maximum when yoke radius YR, which is defined as the straight-line distance from the yoke axis of rotation 16 to the knife roll axis of rotation 26, and the knife radius KR, another key operational parameter defined as the straight-line distance from the knife roll axis of rotation 26 to cutting element 88 of blade 80 of knife roll 20, lie in a common plane as illustrated in
During operation of orbital knife 1 with one or more knife rolls 20 on which is attached a blade 80 with cutting element 88, yoke 10 rotates about its axis of rotation 16, and anvil roll 50 rotates about its axis of rotation 56. In preferred embodiments comprising an actuator 90-phasing link 92-phasing arm 32 arrangement as described herein, rotation of one or more sun pulleys 35 resulting from the displacement of a phasing link 92 associated with each sun pulley 35, with such displacement of phasing link 92 in preferred embodiments effectuated by actuator 90. Phasing link 92 displacement effectuates displacement of phasing arm 32, which in turn effectuates rotation of the associated sun pulley 35. Rotation of the sun pulley 35 results in the rotation of the planet pulley 45 with which the sun pulley 35 is in contact via drive belt 46 forming a belt and pulley system. Sun pulley 35 rotation effectuates a rotation of the associated knife roll 20 about such knife roll 20's axis of rotation 26, thereby changing the relationship between the yoke radius YR and the knife radius KR with a corresponding change in the cut radius CR and therefore changing blade 80 deflection.
Web 100 passes through orbital knife 1 on the conveyor comprising two segments, being fed to orbital knife 1 by being disposed on infeed conveyor 104 which is spaced apart from discharge conveyor 105, resulting in a gap between conveyor segments 104 and 105. In the gap, web 100 is disposed on anvil roll 50 positioned below web 100. Rotation of yoke 10 about its axis of rotation 16 results in the positioning of knife roll 20 proximal anvil roll 50 and cutting element 88 of blade 80 attached to knife roll 20 being positioned above web 100 in this gap, with cutting element 88 positioned above and in contact with web 100 which in turn is positioned above and in contact with anvil roll 50. A load (force) is imposed on anvil roll 50 by the blade 80 of knife roll 20 which compresses web 100 in this gap, with web 100 cut into individual cut web pieces 101 by blade 80 of knife roll 20 when rotation of yoke 10 results in the positioning of knife roll 20 proximal anvil roll 50.
Yet another preferred embodiment of the alternative embodiment entails orbital knife 1 comprising a blade 85 (
An alternative embodiment of the present invention comprising an orbital knife 1 is depicted in
Further with reference to
Further with reference to
In preferred embodiments of orbital knife 1 comprising a plurality of knife rolls 20(a) and 20(b), first knife roll 20(a) has separably attached thereto first blade 80(a) comprising first blade cutting element 88(a) and second knife roll 20(b) has separably attached thereto second blade 80(b) comprising second blade cutting element 88(b). In preferred embodiments of orbital knife 1 comprising a plurality of knife rolls 20(a) and 20(b) and a rotating yoke 10, web 100 is compressed alternatively between blade 80(a) and blade 80(b) with disposed cutting elements 88(a) and 88(b) separably attached to knife rolls 20(a) and 20(b) depending on the rotational position of yoke 10, and anvil roll 50, with web 100 cut into individual cut web pieces 101 alternatively by blade 80(a) attached to knife roll 20(a) when rotation of yoke 10 results in the positioning of knife roll 20(a) proximal anvil roll 50 and blade 80(b) attached to knife roll 20(b) when rotation of yoke 10 results in the positioning of knife roll 20(b) proximal anvil roll 50. Web 100 may or may not be in contact with knife roll 20 to effectuate a cut, with all that is required to effectuate a cut is contact between cutting element 88 of blade 80 and web 100.
This embodiment of orbital knife 1 differs from the embodiment described above and depicted in
Each of the one or more planet gears 40 has an axis of rotation concentric with the axis of rotation of the respective knife roll 20 and having a specified pitch radius so that rotation of the yoke 10 about its axis of rotation while the sun gears 30 are held stationary with respect to the support structure 5 will effectuate a rotation of idler gear 43 which in turn causes a rotation of the respective planet gear 40 and in turn the associated knife roll 20.
In preferred embodiments and with reference to
Further, the ratio of the sun gear 30 pitch radii and planet gear 40 pitch radii is established such that operation of orbital knife 1 produces a precisely repeating pattern of locations of the positioning of the cutting element 88 associated with each knife roll 20 with respect to support structure 5, which obviates cutting element 88 of blade 80 attached to knife roll 20 impinging or contacting anvil roll 50 during yoke 10 operation. Further, orbital knife 1 has, for a particular cut setting, a key operational parameter called the cut radius CR which is defined as the straight-line distance from the center of rotation of yoke 10 to cutting element 88.
The force required to effectuate the rotation of sun gear 30 can be achieved using any means known in the art. In preferred embodiments, orbital knife 1 further comprises one or more phasing actuators 90 [depicted in
In embodiments wherein force for rotation of the sun gear 30 is provided by one or more actuators 90, orbital knife 1 further comprises a phasing arm 32 attached to each of the one or more sun gears 30, each phasing arm 32 having a first end and a second end, wherein (a) the first end of phasing arm 32 is rotatably attached to phasing link 92 and the second end of phasing arm 32 is rigidly attached to sun gear 30, and (b) rotation of phasing arm 32 effectuates rotation of sun gear 30 about its axis of rotation thereby controlling the rotational position of sun gear 30 relative to support structure 5 which is measured by the key operational parameter called the phase angle PA which is a measure of the amount of rotation of sun gear 30 relative to a fixed reference and wherein phase angle PA for the instant invention is defined as the angle from the upper lateral plane of support structure 5 to the lateral plane occupied by phasing arm 32 extending through the center of sun gear 30. In embodiments of orbital knife 1 comprising a plurality of sun gears 30(a) and 30(b), rigidly attached to sun gear 30(a) is phasing arm 32(a) and rigidly attached to sun gear 30(b) is phasing arm 32(b) [see
Further, in preferred embodiments wherein the force for rotation of sun gears 30 is provided through one or more actuators 90, force is provided by one or more actuator motors 95 connected to one or more actuators 90, with each motor 95 connected to one actuator 90. In alternative preferred embodiments as shown in
The rotation of the one or more sun gears 30 allows for operational control of phase angle PA of each of the sun gears 30 (i.e., the rotational position of each of the sun gears 30 with respect to the stationary support 5), with in-operation (on the fly) rotation of the one or more sun gears 30 (that is, rotation of the one or more sun gears 30 during active (ongoing) web 100 cutting operations, with such rotation driving planet gear 40 via idler gear 43), thus allowing for a change of the cut radius CR of each of the one or more blades 80 resulting in a modification of deflection of cutting element 88 associated with each of the one or more blades 80 attached to each of the one or more knife rolls 20 associated with each such rotating sun gear 30, thus obviating use of an adjustable anvil 53 in prior art cutting apparatus P and adjustment of such anvil 53 to effectuate a change in blade deflection and resulting in an apparatus (i.e., orbital knife 1) that has less parts and is less expensive to acquire and maintain than prior art cutting apparatuses P. In other words, the rotation of sun gear 30 according to the present invention allows a user of orbital knife 1 to change the cut radius CR, and hence blade deflection and the cutting force with which cutting element 88 on blade 80 contact anvil roll 50, of each of the one or more blades 80 on the fly during operations to allow for a continuous cutting operation during which the optimal blade 80 deflection is maintained without the need for multiple batch (run) operations (i.e., operation of prior art cutting apparatus P with a first cut radius CR, stoppage of operation [defining a first batch {run} operation], modification of prior art cutting apparatus P by adjusting the position of cutting element 88 of blade 80 relative to the center of rotation of the knife roll 20 to effectuate a change of cut radius CR and hence effectuating a change in the blade 80 deflection during the cutting operation or, alternatively, changing the deflection of the blade 80 of cutting apparatus P by changing the position of the anvil 53 relative to the center of rotation of the anvil roll 50 to effectuate a change in the deflection of blade 80 with cutting element 88, with any of the foregoing requiring the aforementioned stoppage of operations of cutting apparatus P to change cutting element 88 deflection and thereafter recommencing operations of cutting apparatus P [defining a second batch {run} operation]). The on-the-fly CR adjustability provided by orbital knife 1 according to the present invention allows for continual maintenance of optimal blade interference to make web 100 cutting operations more efficient.
In a cutting operation, cut radius CR is at a maximum when yoke radius YR, which is defined as the straight-line distance from the yoke axis of rotation 16 to the knife roll axis of rotation 26, and the knife radius KR, another key operational parameter defined as the straight-line distance from the knife roll axis of rotation 26 to cutting element 88 of blade 80 of knife roll 20, lie in a common plane. Moving the knife roll axis of rotation 26 out of the common plane will cause a reduction of cut radius CR and is effectuated by rotation of sun gear 30. In practice, the optimal cut radius CR for any given circumstance is something less than the maximum cut radius CR. Further, the optimal blade 80 deflection with related cut radius CR may change over time depending on operating conditions. In the present invention, maintenance of an optimal blade deflection and associated cut radius CR can be achieved since cut radius CR of each of the one or more blades 80 of orbital knife 1 can be varied during web cutting operation without stopping orbital knife 1 operations as is required of a prior art cutting apparatus P.
During operation of orbital knife 1 with one or more knife rolls 20 on which is attached a blade 80 with cutting element 88, yoke 10 rotates about its axis of rotation 16, and anvil roll 50 rotates about its axis of rotation 56. In preferred embodiments comprising an actuator 90-phasing link 92-phasing arm 32 arrangement as described herein, rotation of one or more sun gears 30 resulting from the displacement of a phasing link 92 associated with each sun gear 30, with such displacement of phasing link 92 in preferred embodiments effectuated by actuator 90. Phasing link 92 displacement effectuates displacement of phasing arm 32, which in turn effectuates rotation of the associated sun gear 30. Rotation of the sun gear 30 results in the rotation of the planet gear 40 via the idler gear 43 with which the sun gear 30 forms a gear train. Sun gear 30 rotation effectuates a rotation of the associated knife roll 20 about such knife roll 20's axis of rotation 26, thereby changing the relationship between the yoke radius YR and the knife radius KR with a corresponding change in the cut radius CR and therefore changing blade 80 deflection.
Web 100 passes through orbital knife 1 on the conveyor comprising two segments, being fed to orbital knife 1 by being disposed on infeed conveyor 104 which is spaced apart from discharge conveyor 105, resulting in a gap between conveyor segments 104 and 105. In the gap, web 100 is disposed on anvil roll 50 positioned below web 100. Rotation of yoke 10 about its axis of rotation 16 results in the positioning of knife roll 20 proximal anvil roll 50 and cutting element 88 of blade 80 attached to knife roll 20 being positioned above web 100 in this gap, with cutting element 88 positioned above and in contact with web 100 which in turn is positioned above and in contact with anvil roll 50. A load (force) is imposed on anvil roll 50 by the blade 80 of knife roll 20 which compresses web 100 in this gap, with web 100 cut into individual cut web pieces 101 by blade 80 of knife roll 20 when rotation of yoke 10 results in the positioning of knife roll 20 proximal anvil roll 50.
While embodiments of the invention have been illustrated and described, it is not intended that these embodiments illustrate and describe all possible forms of the invention. Rather, the words used in the specification are words of description rather than limitation, and it is understood that various changes may be made without departing from the sprit and scope of the invention.
This application is a divisional application of and claims the benefit of and priority to Non-Provisional patent application Ser. No. 17/945,924 filed Sep. 15, 2022, now pending, which in turn claims the benefit of and priority to Provisional Patent Application No. 63/330,109 filed Apr. 12, 2022, with the entirety of each of the foregoing applications incorporated herein by this reference.
| Number | Name | Date | Kind |
|---|---|---|---|
| 3224311 | Wagner | Dec 1965 | A |
| 4014234 | Spengler | Mar 1977 | A |
| 4033212 | Hasegawa | Jul 1977 | A |
| 4082023 | Hertsius | Apr 1978 | A |
| 4170155 | Saito | Oct 1979 | A |
| 4171780 | Bugnone | Oct 1979 | A |
| 4240312 | Ward | Oct 1980 | A |
| 4262566 | Fondronnier | Apr 1981 | A |
| 4336812 | Seragnoli | Jun 1982 | A |
| 4355554 | Gregory | Oct 1982 | A |
| 4630514 | Ohmori | Oct 1986 | A |
| 4625902 | Billberg | Dec 1986 | A |
| 4691603 | Winnemoller | Sep 1987 | A |
| 4701239 | Craig | Oct 1987 | A |
| 4732067 | Yamada | Mar 1988 | A |
| 4750394 | Suzuki | Jun 1988 | A |
| 4779781 | Billberg | Oct 1988 | A |
| 4811641 | Muller | Mar 1989 | A |
| 4860623 | Pawelko | Aug 1989 | A |
| 4896605 | Schroder | Jan 1990 | A |
| 4913013 | Osborn | Apr 1990 | A |
| 4917995 | Kojima | Apr 1990 | A |
| 4972745 | Bruder | Nov 1990 | A |
| 4982637 | Osborn | Jan 1991 | A |
| 5047607 | Briffod | Sep 1991 | A |
| 5048387 | Niitsuma | Sep 1991 | A |
| 5088368 | Marion | Feb 1992 | A |
| 5088972 | Parker | Feb 1992 | A |
| 5134013 | Parker | Jul 1992 | A |
| 5173352 | Parker | Dec 1992 | A |
| 5251836 | Pack | Oct 1993 | A |
| 5309804 | Norris | May 1994 | A |
| 5367936 | Held | Nov 1994 | A |
| 5403259 | Parker | Apr 1995 | A |
| 5419582 | Norris | May 1995 | A |
| 5477656 | Loewenthal | Dec 1995 | A |
| 5518544 | Higginson | May 1996 | A |
| 5573491 | Parker | Nov 1996 | A |
| 5622113 | Hansen | Apr 1997 | A |
| 5674334 | Instance | Oct 1997 | A |
| 5720210 | Okahashi | Feb 1998 | A |
| 5725320 | Austin | Mar 1998 | A |
| 5779831 | Schmitz | Jul 1998 | A |
| 5802941 | Kline | Sep 1998 | A |
| 5918518 | Kobayashi | Jul 1999 | A |
| 5967011 | Feldkamper | Oct 1999 | A |
| 6009781 | McNeil | Jan 2000 | A |
| 6012365 | Dufour | Jan 2000 | A |
| 6023917 | Cardone | Feb 2000 | A |
| 6058817 | Kobayashi | May 2000 | A |
| 6112628 | Kline | Sep 2000 | A |
| 6196105 | Hansen | Mar 2001 | B1 |
| 6401583 | Kishine | Jun 2002 | B1 |
| 6412383 | Henry | Jul 2002 | B1 |
| 6481318 | Kinigakis | Nov 2002 | B1 |
| 6739545 | Drefs | May 2004 | B2 |
| 6755371 | Watanabe | Jun 2004 | B2 |
| 6811640 | Franko | Nov 2004 | B2 |
| 6858105 | Hartman | Feb 2005 | B2 |
| 6860309 | Hartman | Mar 2005 | B2 |
| 6893528 | Middelstadt | May 2005 | B2 |
| 7005028 | Middelstadt | Feb 2006 | B2 |
| 7007602 | Kiyota | Mar 2006 | B2 |
| 7008497 | Nakakado | Mar 2006 | B2 |
| 7017484 | Kiyota | Mar 2006 | B2 |
| 7083137 | Watanabe | Aug 2006 | B2 |
| 7127975 | Miyatake | Oct 2006 | B2 |
| 7135083 | Middelstadt | Nov 2006 | B2 |
| 7191690 | Pollock | Mar 2007 | B2 |
| 7216685 | Nakakado | May 2007 | B2 |
| 7243585 | Miyatake | Jul 2007 | B2 |
| 7311651 | Stab | Dec 2007 | B2 |
| 7326161 | Ishikawa | Feb 2008 | B2 |
| 7338425 | Whitten | Mar 2008 | B1 |
| 7571584 | Lerner | Aug 2009 | B2 |
| 7587966 | Nakakado | Sep 2009 | B2 |
| 7647698 | Closmann | Jan 2010 | B2 |
| 7722517 | Chen | May 2010 | B2 |
| 7771335 | Wingate | Aug 2010 | B2 |
| 7771336 | Shoji | Aug 2010 | B2 |
| 7780156 | Schmitz | Aug 2010 | B2 |
| 7883455 | Held | Feb 2011 | B2 |
| 8002928 | Nakakado | Aug 2011 | B2 |
| 8062459 | Nakakado | Nov 2011 | B2 |
| 8096931 | Yamamoto | Jan 2012 | B2 |
| 8123665 | De Matteis | Feb 2012 | B2 |
| 8226534 | Chaturvedi | Jul 2012 | B2 |
| 8276638 | Yamamoto | Oct 2012 | B2 |
| 8297792 | Yamamoto | Oct 2012 | B1 |
| 8326205 | Miyazaki | Dec 2012 | B2 |
| 8342675 | Motojima | Jan 2013 | B2 |
| 8353236 | De Marco | Jan 2013 | B2 |
| 8356650 | Takahashi | Jan 2013 | B2 |
| 8403575 | Gocho | Mar 2013 | B2 |
| 8440043 | Schneider | May 2013 | B1 |
| 8540795 | Carpenter | Sep 2013 | B2 |
| 8640579 | Pedercini | Feb 2014 | B2 |
| 8663420 | Nakakado | Mar 2014 | B2 |
| 8789572 | Yamamoto | Jul 2014 | B2 |
| 8863627 | Kandemir | Oct 2014 | B2 |
| 8920298 | Gerhard | Dec 2014 | B2 |
| 9003935 | Herlinger | Apr 2015 | B2 |
| 9003939 | Dijon | Apr 2015 | B2 |
| 9027917 | Annerstedt | May 2015 | B2 |
| 9120588 | Deckert | Sep 2015 | B2 |
| 9162413 | Hartman | Oct 2015 | B2 |
| 9278460 | Meznaric | Mar 2016 | B2 |
| 9279199 | Matsumoto | Mar 2016 | B2 |
| 9289911 | Andreato | Mar 2016 | B2 |
| 9289912 | Bayzelon | Mar 2016 | B2 |
| 9295592 | Yamamoto | Mar 2016 | B2 |
| 9327417 | Saga | May 2016 | B2 |
| 9364965 | Schneider | Jun 2016 | B2 |
| 9381661 | Ingole | Jul 2016 | B2 |
| 9382026 | Ippers | Jul 2016 | B2 |
| 9434083 | Douillard | Sep 2016 | B2 |
| 9468563 | Coe | Oct 2016 | B2 |
| 9517573 | Schneider | Dec 2016 | B2 |
| 9522477 | Endoh | Dec 2016 | B2 |
| 9539735 | Ferguson | Jan 2017 | B2 |
| 9636837 | Kandemir | May 2017 | B2 |
| 9693909 | Tombuelt-Meyer | Jul 2017 | B2 |
| 9738002 | Schneider | Aug 2017 | B2 |
| 9782904 | Bayzelon | Oct 2017 | B2 |
| 9808947 | Grubka | Nov 2017 | B2 |
| 9841265 | Vanvalkenburgh | Dec 2017 | B2 |
| 9863606 | Hargett | Jan 2018 | B2 |
| 9895821 | Wada | Feb 2018 | B2 |
| 9914234 | Baggot | Mar 2018 | B2 |
| 9943977 | Secondi | Apr 2018 | B2 |
| 9993932 | Salamone | Jun 2018 | B2 |
| 10039674 | Wada | Aug 2018 | B2 |
| 10059015 | Schneider | Aug 2018 | B2 |
| 10059016 | Grubka | Aug 2018 | B2 |
| 10117455 | Beckmann | Nov 2018 | B2 |
| 10173336 | Sposato | Jan 2019 | B2 |
| 10179422 | Lodi | Jan 2019 | B2 |
| 10207416 | Secondi | Feb 2019 | B2 |
| 10226386 | Long | Mar 2019 | B2 |
| 10279496 | Hartman | May 2019 | B2 |
| 10286568 | Pras | May 2019 | B2 |
| 10307982 | Adams | Jun 2019 | B2 |
| 10328590 | Bormann | Jun 2019 | B2 |
| 10357954 | Liebler | Jul 2019 | B2 |
| 10391657 | Ferguson | Aug 2019 | B2 |
| 10391663 | Tsuji | Aug 2019 | B2 |
| 10406795 | Nishimura | Sep 2019 | B2 |
| 10442103 | Bormann | Oct 2019 | B2 |
| 10456949 | Ufer | Oct 2019 | B2 |
| 10471620 | Bittner | Nov 2019 | B2 |
| 10543674 | Bormann | Jan 2020 | B2 |
| 10576650 | Bayer | Mar 2020 | B2 |
| 10589487 | Adams | Mar 2020 | B2 |
| 10610417 | Wada | Apr 2020 | B2 |
| 10653565 | Long | May 2020 | B2 |
| 10669057 | Claire | Jun 2020 | B2 |
| 10744664 | Adami | Aug 2020 | B2 |
| 10744665 | Kagawa | Aug 2020 | B2 |
| 10800061 | Yamamuro | Oct 2020 | B2 |
| 10806635 | Schneider | Oct 2020 | B2 |
| 10807263 | Busch | Oct 2020 | B2 |
| 10814578 | Schalk | Oct 2020 | B2 |
| 10815042 | Cardin | Oct 2020 | B2 |
| 10821032 | Piantoni | Nov 2020 | B2 |
| 10828794 | Okabe | Nov 2020 | B2 |
| 10836149 | Oetjen | Nov 2020 | B2 |
| 10837133 | Kim | Nov 2020 | B2 |
| 10851824 | Vorderwisch | Dec 2020 | B2 |
| 10857704 | Derry | Dec 2020 | B2 |
| 10871758 | Fagan | Dec 2020 | B2 |
| 10875735 | Leufstadius | Dec 2020 | B2 |
| 10882204 | Beckonert | Jan 2021 | B2 |
| 10894687 | McCabe | Jan 2021 | B2 |
| 10899568 | Pasquale | Jan 2021 | B2 |
| 10906686 | Hopner | Feb 2021 | B2 |
| 10913561 | Wetsch | Feb 2021 | B2 |
| 10913631 | Meyerhans | Feb 2021 | B2 |
| 10919252 | Ackerman | Feb 2021 | B2 |
| 10926430 | Coursey | Feb 2021 | B2 |
| 10927479 | Samejima | Feb 2021 | B2 |
| 10938284 | Huber | Mar 2021 | B2 |
| 10966875 | Heege | Apr 2021 | B2 |
| 10967441 | DeLuca | Apr 2021 | B2 |
| 10968065 | Silva | Apr 2021 | B2 |
| 11007665 | Reisz | May 2021 | B2 |
| 11020282 | Back | Jun 2021 | B2 |
| 11020868 | Laurikainen | Jun 2021 | B2 |
| 11020929 | Takemoto | Jun 2021 | B2 |
| 11028536 | Miyasaka | Jun 2021 | B2 |
| 11040499 | Eickhoff | Jun 2021 | B2 |
| 11052054 | Fotinos | Jul 2021 | B2 |
| 11052571 | Bold | Jul 2021 | B2 |
| 11053158 | Fazio | Jul 2021 | B2 |
| 11059626 | Inagawa | Jul 2021 | B2 |
| 11065708 | Fagan | Jul 2021 | B2 |
| 11084681 | Andersson | Aug 2021 | B2 |
| 11089815 | Persson | Aug 2021 | B2 |
| 11090844 | Bahr | Aug 2021 | B2 |
| 11090896 | Hanauer | Aug 2021 | B2 |
| 11091288 | Claire | Aug 2021 | B1 |
| 11096686 | Thompson | Aug 2021 | B2 |
| 11124326 | Vitiello | Sep 2021 | B2 |
| 11130650 | Gerhardt | Sep 2021 | B2 |
| 11142730 | Huang et al. | Oct 2021 | B2 |
| 11154429 | Coe | Oct 2021 | B2 |
| 11161332 | Nash | Nov 2021 | B2 |
| 11162707 | Collmer | Nov 2021 | B2 |
| 11186029 | Thaler | Nov 2021 | B2 |
| 11193238 | Oguchi | Dec 2021 | B2 |
| 11203128 | Fukasawa et al. | Dec 2021 | B2 |
| 11208249 | Ellis | Dec 2021 | B2 |
| 11209370 | Ohora | Dec 2021 | B2 |
| 11225884 | Haxhiu | Jan 2022 | B2 |
| 11244376 | Van Thomme | Feb 2022 | B1 |
| 11247428 | Varriano-Marston | Feb 2022 | B2 |
| 11248320 | Mueller | Feb 2022 | B2 |
| 11253711 | Sherwood | Feb 2022 | B2 |
| 11273570 | Hartman | Mar 2022 | B2 |
| 11273934 | Gundelach | Mar 2022 | B2 |
| 11279106 | Linnestad | Mar 2022 | B2 |
| 11285450 | Pielsticker | Mar 2022 | B2 |
| 20220152862 | Forman | May 2022 | A1 |
| Number | Date | Country |
|---|---|---|
| 110228100 | Feb 2019 | CN |
| Number | Date | Country | |
|---|---|---|---|
| 63330109 | Apr 2022 | US |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 17945924 | Sep 2022 | US |
| Child | 18101679 | US |
