Gregory T Prellwitz

8012076, Sep 6, 2011

May 11, 2009

12/463908

Paul A. Selle - Appleton WI, US
Kenneth C. Radtke - Appleton WI, US
Charles H. Sauder - Appleton WI, US
Paul A. Johnson - Menasha WI, US
Christopher Lee White - Watermeet MI, US
Arvid R. Johnson - Appleton WI, US
Gregory T. Prellwitz - Black Creek WI, US
Michael J. Stickney - Appleton WI, US
Thomas C. Jansen - Appleton WI, US
Christopher A. Saucier - Yarmouth MA, US
Terry L. Leitzke - Hortonville WI, US
Bradley J. Schmoll - Appleton WI, US

CMD Corporation - Appleton WI

B31B 1/14

493341, 493199, 493203, 493208, 493365, 83 16, 83678

A machine and method for making bags is described and includes a web traveling from an input section to a rotary drum, to an output section. The rotary drum includes at least one seal bar, having a first sealing zone, and an adjacent weakening zone. The weakening zone may be a heated perforator, includes a heating wire, or be disposed to create an auxiliary sealed area. The heating wire can have, connected thereto, a source of power that is at an adjustable voltage or magnitude, and/or pulsed, and/or a feedback loop. The heating wire may be an NiCr wire and make intermittent contact with the web and be disposed in an insert. The weakening zone may create a line of weakness that is uniform or varies in intensity, is a separating zone, or includes a heat film, a toothed blade, a row of pins, a source of air, or a source of vacuum. The sealing zones may include temperature zones, cartridge heaters, cooling air, or heated air, or a source of ultrasonic, microwave or radiative energy.

8029428, Oct 4, 2011

Oct 17, 2008

12/253724

Paul A. Selle - Appleton WI, US
Gregory T. Prellwitz - Black Creek WI, US

CMD Corporation - Appleton WI

B31B 1/14
B31B 1/64

493194, 83 16, 83171, 156251, 156515, 1565832, 493199, 493203, 493205, 493208

A machine and method for making bags is described and includes a web traveling from an input section to a rotary drum, to an output section. The rotary drum includes at least one seal bar, having a single sealing zone, and a weakening zone disposed within the single sealing zone. The single sealing zone may be a heated perforator, and may include a heating wire. The heating wire may be an NiCr wire stitched into the heater, and be disposed on a cap or on the seal bar. The weakening zone may create a line of weakness that is uniform or varies in intensity. The sealing zone may include temperature zones, cartridge heaters, cooling air, or heated air, or a source of ultrasonic, microwave or radiative energy.

8257236, Sep 4, 2012

Aug 26, 2011

13/219188

Paul A. Selle - Appleton WI, US
Kenneth C. Radtke - Appleton WI, US
Charles H. Sauder - Appleton WI, US
Paul A. Johnson - Menasha WI, US
Christopher Lee White - Watersmeet MI, US
Arvid R. Johnson - Appleton WI, US
Gregory T. Prellwitz - Black Creek WI, US
Michael J. Stickney - Appleton WI, US
Thomas C. Jansen - Appleton WI, US
Christopher A. Saucier - Yarmouth MI, US
Terry L. Leitzke - Hortonville WI, US
Bradley J. Schmoll - Appleton WI, US

CMD Corporation - Appleton WI

B31B 1/14

493341, 493199, 493203, 493208, 493365, 83 16, 83678

A machine and method for making bags is described and includes a web traveling from an input section to a rotary drum, to an output section. The rotary drum includes at least one seal bar, having a first sealing zone, and an adjacent weakening zone. The weakening zone may be a heated perforator, includes a heating wire, or be disposed to create an auxiliary sealed area. The heating wire can have, connected thereto, a source of power that is at an adjustable voltage or magnitude, and/or pulsed, and/or a feedback loop. The heating wire may be an NiCr wire and make intermittent contact with the web and be disposed in an insert. The weakening zone may create a line of weakness that is uniform or varies in intensity, is a separating zone, or includes a heat film, a toothed blade, a row of pins, a source of air, or a source of vacuum. The sealing zones may include temperature zones, cartridge heaters, cooling air, or heated air, or a source of ultrasonic, microwave or radiative energy.

20070167304, Jul 19, 2007

Jan 13, 2006

11/331466

Paul Selle - Appleton WI, US
Kenneth Radtke - Appleton WI, US
Charles Sauder - Appleton WI, US
Paul Johnson - Menasha WI, US
Christopher White - Watersmeet MI, US
Arvid Johnson - Appleton WI, US
Gregory Prellwitz - Black Creek WI, US
Michael Stickney - Appleton WI, US
Thomas Jansen - Appleton WI, US
Christopher Saucier - Kaukauna WI, US
Terry Leitzke - Hortonville WI, US
Bradley Schmoll - Appleton WI, US

B31B 1/28

493175000

A machine and method for making bags is described and includes a web traveling from an input section to a rotary drum, to an output section. The rotary drum includes at least one seal bar, having a first sealing zone, and an adjacent weakening zone. The weakening zone may be a heated perforator, includes a heating wire, or be disposed to create an auxiliary sealed area. The heating wire can have, connected thereto, a source of power that is at an adjustable voltage or magnitude, and/or pulsed, and/or a feedback loop. The heating wire may be an NiCr wire and make intermittent contact with the web and be disposed in an insert. The weakening zone may create a line of weakness that is uniform or varies in intensity, is a separating zone, or includes a heat film, a toothed blade, a row of pins, a source of air, or a source of vacuum. The sealing zones may include temperature zones, cartridge heaters, cooling air, or heated air, or a source of ultrasonic, microwave or radiative energy.

20070179035, Aug 2, 2007

Feb 2, 2006

11/346740

Paul Selle - Appleton WI, US
Gordon Breier - De Pere WI, US
David Kuchenbecker - Appleton WI, US
Gregory Prellwitz - Black Creek WI, US

B31B 1/64

493189000

A bag machine, and method of making bags, has a sealing station a perforating station, and a downstream seal and perforation inspection station, or a perforation detection station and/or a seal inspection station is disclosed. Control of the perforating and sealing stations is preferably closed loop. The seal and perforation inspection station preferably includes a perforation detector that triggers a vision system and/or a camera, and the film is illuminated. Preferably, the inspection station is enclosed in an opaque housing, or the ambient light is otherwise blocked. The seal and perforation inspection station preferably provides an image output a display visible to a user. The vision system preferably includes a perforation location module and/or determines the distance between the seal and perforation. A downstream processing station can be provided, and can have a detected fault input, connected to a fault detect output from the seal and perforation inspection station.

20070179036, Aug 2, 2007

May 31, 2006

11/421304

Paul Selle - Appleton WI, US
Gordon Breier - De Pere WI, US
David Kuchenbecker - Appleton WI, US
Gregory Prellwitz - Black Creek WI, US

CMD Corporation - Appleton WI

B31B 1/64

493189000

A bag machine, and method of making bags, has a sealing station a perforating station, and a downstream seal and perforation inspection station, or a perforation detection station and/or a seal inspection station is disclosed. Control of the perforating and sealing stations is preferably closed loop. The seal and perforation inspection station preferably includes a perforation detector that triggers a vision system and/or a camera, and/or thermal sensor and the film is illuminated. The seal and perforation inspection station preferably provides an image or thermal profile output a display visible to a user. The system preferably includes a perforation location module and/or determines the distance between the seal and perforation. A downstream processing station can be provided, and can have a detected fault input, connected to a fault detect output from the seal and perforation inspection station.

20080093018, Apr 24, 2008

Nov 9, 2007

11/937870

Paul SELLE - Appleton WI, US
Kenneth RADTKE - Appleton WI, US
Charles SAUDER - Appleton WI, US
Paul JOHNSON - Menasha WI, US
Christopher WHITE - Watermeet MI, US
Arvid JOHNSON - Appleton WI, US
Gregory PRELLWITZ - Black Creek WI, US
Michael STICKNEY - Appleton WI, US
Thomas JANSEN - Appleton WI, US
Christopher SAUCIER - Yarmouthport MA, US
Terry LEITZKE - Hortonville WI, US
Bradley SCHMOLL - Appleton WI, US
Gregory JOHNSON - Greenville WI, US
Scott GRASSE - Hortonville WI, US

CMD Corporation - Appleton WI

B32B 37/30

156251000, 156367000, 156446000, 156515000

A machine and method for making bags is described and includes a web traveling from an input section to a rotary drum, to an output section. The rotary drum includes at least one seal bar, having a single sealing zone, and an weakening zone disposed within the single sealing zone. The single sealing zone may be a heated perforator, includes a heating wire. The heating wire may be an NiCr wire and make intermittent contact with the web and be disposed in an insert. The weakening zone may create a line of weakness that is uniform or varies in intensity. The sealing zone may include temperature zones, cartridge heaters, cooling air, or heated air, or a source of ultrasonic, microwave or radiative energy.

20080300121, Dec 4, 2008

Jun 25, 2008

12/145913

Paul A. Selle - Appleton WI, US
Gregory T. Prellwitz - Black Creek WI, US

CMD Corporation - Appleton WI

B31B 1/64

493189

A machine and method for making bags is described and includes a web traveling from an input section to a rotary drum, to an output section. The rotary drum includes at least one seal bar, having a single sealing zone, and a weakening zone disposed within the single sealing zone. The single sealing zone may be a heated perforator, includes a heating wire. The heating wire may be an NiCr wire stitched into the heater, and be disposed on a cap or on the seal bar. The weakening zone may create a line of weakness that is uniform or varies in intensity. The sealing zone may include temperature zones, cartridge heaters, cooling air, or heated air, or a source of ultrasonic, microwave or radiative energy.