Patents by Inventor David E Machamer
David E Machamer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9914236Abstract: A method for cutting a moving source material including: rotating a cutting cylinder including a blade; positioning a structural member in spaced relation from the cutting cylinder, wherein the space between the cutting cylinder and the structural member receives the source material; and positioning an anvil in the space. The anvil engages the source material when it is displaced between the cutting cylinder and the structural member. The method also includes: directing the blade into contact with the source material, whereupon the source material is pressed against the anvil and is severed by the blade, and the anvil is displaced by the cutting blade from a first retracted position to a second activated position; and applying an increasing biasing force to the moving anvil as it is displaced toward the second activated position so as to direct the anvil back to its first retracted position.Type: GrantFiled: March 3, 2016Date of Patent: March 13, 2018Assignee: TAMARACK PRODUCTS, INC.Inventor: David E. Machamer
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Patent number: 9670022Abstract: Apparatus for splicing expiring and replenishing webs of a web material includes first and second spaced platens having respective facing inner surfaces defining a passageway for transit of the expiring web, where the platens are adapted for displacement toward and away from one another in a reciprocating manner. The first platen is adapted to engage an end of the replenishing web, while the second platen is adapted to engage and position the moving expiring web. Moving the platens together with their respective inner surfaces in close proximity to one another causes a cutting die on the first platen to sever the expiring web forming outfeeding and infeeding ends of the expiring web, and to attach the expiring web's outfeeding end to the replenishing web. Attached to the second platen in facing relation to the first platen and engaging the expiring web is an ironing pad to ensure firm contact and adhesion of expiring web to the replenishing web.Type: GrantFiled: September 3, 2015Date of Patent: June 6, 2017Assignee: Tamarack Products, Inc.Inventor: David E. Machamer
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Publication number: 20160279821Abstract: Apparatus for cutting source material in the form of a thin moving web includes a rotating cutting cylinder having an outwardly extending mounted blade and a closely spaced support member. Disposed between the blade-bearing lateral surface of the cutting cylinder and the support member, and in contact with the support member, is a movable, generally flat anvil strip adapted to engage, position and support the thin web to allow the rotating blade to sever the web material. The anvil strip is displaced in a reciprocating manner between a retracted position at the beginning of the blade's cutting stroke and an activated position at the end of the cutting stroke, prior to return of the anvil strip to its initial retracted position.Type: ApplicationFiled: March 3, 2016Publication date: September 29, 2016Inventor: David E. Machamer
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Publication number: 20160068361Abstract: Apparatus for splicing expiring and replenishing webs of a web material includes first and second spaced platens having respective facing inner surfaces defining a passageway for transit of the expiring web, where the platens are adapted for displacement toward and away from one another in a reciprocating manner. The first platen is adapted to engage an end of the replenishing web, while the second platen is adapted to engage and position the moving expiring web. Moving the platens together with their respective inner surfaces in close proximity to one another causes a cutting die on the first platen to sever the expiring web forming outfeeding and infeeding ends of the expiring web, and to attach the expiring web's outfeeding end to the replenishing web. Attached to the second platen in facing relation to the first platen and engaging the expiring web is an ironing pad to ensure firm contact and adhesion of expiring web to the replenishing web.Type: ApplicationFiled: September 3, 2015Publication date: March 10, 2016Inventor: David E. Machamer
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Patent number: 8915497Abstract: An improved apparatus and method for properly orienting and aligning flat sheets or strip material, such as in the form of folding carton blanks, on a conveying system such as used in carton folders/gluers is disclosed. A moving sheet is engaged on at least one surface by plural non-driven movable casters oriented at an angle relative to the sheet's intended direction of travel, or target direction. The casters apply a lateral force to the sheet so that a linear lateral edge of the sheet is brought into contact with an adjacent guide member aligned with the target direction, with the sheet assuming a predetermined orientation relative to the target direction. Each caster is resiliently biased such as by a spring at a predetermined angle relative to the target direction. With the sheet's lateral edge in intimate contact with the guide member, the moving sheet is in the aforementioned predetermined orientation relative to, and is displaced in, the target direction.Type: GrantFiled: January 6, 2014Date of Patent: December 23, 2014Assignee: Tamarack Products, Inc.Inventor: David E. Machamer
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Publication number: 20140191465Abstract: An improved apparatus and method for properly orienting and aligning flat sheets or strip material, such as in the form of folding carton blanks, on a conveying system such as used in carton folders/gluers is disclosed. A moving sheet is engaged on at least one surface by plural non-driven movable casters oriented at an angle relative to the sheet's intended direction of travel, or target direction. The casters apply a lateral force to the sheet so that a linear lateral edge of the sheet is brought into contact with an adjacent guide member aligned with the target direction, with the sheet assuming a predetermined orientation relative to the target direction. Each caster is resiliently biased such as by a spring at a predetermined angle relative to the target direction. With the sheet's lateral edge in intimate contact with the guide member, the moving sheet is in the aforementioned predetermined orientation relative to, and is displaced in, the target direction.Type: ApplicationFiled: January 6, 2014Publication date: July 10, 2014Applicant: Tamarack Products, Inc.Inventor: David E. Machamer
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Publication number: 20110245056Abstract: Apparatus and method for affixing rigid transparent windows to folding cartons draws rigid window web material from a roll and scores and notches the window material in a continuous manner. Notch waste is removed and collected for disposal by the combination of vacuum and an air jet applied at the point of severance. The transparent window material is then provided to an accumulator and then to a stop-and-go adhesive application and material cutting stage, where adhesive is applied to the material which is cut into individual rigid window patches, with the accumulator serving as a buffer between the high speed continuous scoring and notching stage and the stop-and-go adhesive application and cutting stage. Adhesive-bearing individual window patches are applied to moving folding cartons with registration between the notches and cut lines as well as between the cut window blanks and carton blanks provided by a control system.Type: ApplicationFiled: March 31, 2010Publication date: October 6, 2011Applicant: Tamarack Products, Inc.Inventors: David E. Machamer, Thomas S. Slager
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Patent number: 8002924Abstract: A continuous splicer includes first and second closely spaced rotating cylinders each having a respective cutting element and tape retaining arrangement disposed on its outer periphery. With a depleting web fed by the first cylinder and a replenishing web fed by the second cylinder, an end of the replenishing web is adhesively joined to the depleting web while in motion and the depleting web is severed by the first cylinder's cutting element in forming a splice of the two webs. As the replenishing web depletes, a third web may be inserted on the first cylinder and automatically or manually spliced to the original replenishing web without stopping or re-configuring the splicer. The splicer is capable of delivering the webs at a constant rate or a rapidly changing and/or dynamic cycling rate, and applies relatively low web tension for operation with delicate, narrow and extensible webs.Type: GrantFiled: January 26, 2010Date of Patent: August 23, 2011Assignee: Tamarack Products, Inc.Inventor: David E. Machamer
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Patent number: 7665669Abstract: Methods of cutting and applying RFID straps including microchips, by means of rotating vacuum and cutting cylinders to vary the feed rate of the strap web and/or the angular velocity of the cutting cylinder to avoid contact between the cutting blade and the superposed element on the strap web while severing the strap web at the desired cutting position. In one embodiment, the feed rate of the strap web is controlled. In a second embodiment, the strap web is fed at a substantially constant rate while the angular velocity of the cutting cylinder is controlled to avoid damage to the microchips. In a third embodiment, the feed rate of the strap web adjacent the desired cutting position is reduced and then accelerated and returned to normal by a deflecting arm.Type: GrantFiled: April 25, 2006Date of Patent: February 23, 2010Assignee: Tamarack Products, Inc.Inventors: Mark S Steidinger, David J Steidinger, David E Machamer
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Publication number: 20080202300Abstract: Methods of cutting and applying RFID straps including microchips, by means of rotating vacuum and cutting cylinders to vary the feed rate of the strap web and/or the angular velocity of the cutting cylinder to avoid contact between the cutting blade and the superposed element on the strap web while severing the strap web at the desired cutting position. In one embodiment, the feed rate of the strap web is controlled. In a second embodiment, the strap web is fed at a substantially constant rate while the angular velocity of the cutting cylinder is controlled to avoid damage to the microchips. In a third embodiment, the feed rate of the strap web adjacent the desired cutting position is reduced and then accelerated and returned to normal by a deflecting arm.Type: ApplicationFiled: April 25, 2006Publication date: August 28, 2008Applicant: TAMARACK PRODUCTS, INC.Inventors: Mark S. Steidinger, David J. Steidinger, David E. Machamer