Patents Assigned to Douglas Machine, Inc.
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Publication number: 20240217688Abstract: A container (100) is formed by being folded and sealed on one of a multiplicity of male dies (12) of an apparatus (10). The male die (12) with the container (100) placed thereon is inserted into a female die (120). The female die (120) retains the container (100) while the male die (12) is removed therefrom. Lips (110-112) of the container (100) are sandwiched against the female die (120) while product is pushed thereon to prevent collapse of the container (100). The multiplicity of male dies (12) are relatively moveable by rotating about an axis (20) relative to the female die (120).Type: ApplicationFiled: November 8, 2008Publication date: July 4, 2024Applicant: Douglas Machine, Inc.Inventors: Irvan Leo Pazdernik, Corey Stephen Sundheim, David L. Anderson, Colin Michael Messer, Patrick Joseph Bierschenk, John Joseph Michels
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Patent number: 10759556Abstract: A vertical form fill and seal apparatus, for packaging particulates, includes a package sealing assembly that has opposed sealing jaws operatively coupled to each other by mechanical connection at a common pivot point. A first jaw actuator is mechanically coupled to the opposed sealing jaws to pivot the jaws in a controlled manner about the common pivot point. A second actuator is mechanically coupled to the package sealing assembly and is configured to impart controlled reciprocating motion to the package sealing assembly. A controller is configured to control the first actuator and to control the second actuator thereby causing the jaws to describe a preset locus of travel, allowing flexibility of type of bag being made without change-out of jaws. The packaging film may move continuously, or may optionally be controlled to move intermittently through the VFFS.Type: GrantFiled: December 21, 2016Date of Patent: September 1, 2020Assignees: Frito-Lay North America, Inc., Douglas Machine, Inc.Inventors: Patrick Joseph Bierschenk, Frank Mathew Brenkus, Ronald M. Gust
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Patent number: 8584828Abstract: Product is conveyed as a continuous stream by a meter conveyor (12) unto a transfer plate (32) and a transfer device (42) in the form of a thin piece of flexible material. The transfer device (42) is movable between retracted and extended positions extending over a sweep conveyor (22) by securing its trailing and leading ends to flexible belts (106) on opposite longitudinal sides of the sweep conveyor (22). Product is transferred from the transfer device (42) to the sweep conveyor (22) as the transfer device (42) moves from the extended position to the retracted position and is engaged by a metering bar (52ba) which controls the product acceleration on the sweep conveyor (22) and by a sweep bar (62a) which collects the product on the sweep conveyor (22). The metering and sweep bars (52ba, 62a) move independently in the same direction along the same endless path.Type: GrantFiled: March 31, 2009Date of Patent: November 19, 2013Assignee: Douglas Machine, Inc.Inventors: Shawn P. Pundsack, Timothy D. Wilts
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Patent number: 8567165Abstract: A method for compacting a slug of product and apparatus for accomplishing the same. The invention describes collecting weighed product in an intermediate settling device to form a compact slug of product. The device can comprise a single settling chamber or can comprise multiple settling chambers which are axially rotatable. The slug can be compacted by jostling and/or vibrating the settling device. Thereafter, the product is discharged to a packaging apparatus. Because the product in the final package is denser, a smaller package can be utilized reducing manufacturing and shipping costs.Type: GrantFiled: October 21, 2010Date of Patent: October 29, 2013Assignees: Frito-Lay North America, Inc., Douglas Machine, Inc.Inventors: Patrick J. Bierschenk, Frank M. Brenkus, Jerry M. Reaves, Amelinda Melanson, Leon J. Krause, Ronald M. Gust
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Patent number: 7921982Abstract: Apparatus (10) loads product in the form of bags into a carton held at a tilt angle. The leading ends of the bags on an adjustment conveyor (20) are abutted by a bumper (30) to reorient the bags 90° on the adjustment conveyor (20). The downstream roller (44) of a twist conveyor (40) is tilted to collate bags on a decline conveyor (70). The collated bags are moved on an orientation conveyor (74) to engage a product scoop (110) extending at an inclined position and moved to a vertical position to vertically orient the bags. The orientation conveyor (74) is moved to an offset position to allow the bags to drop onto a lowerator (92) of an accumulator (86) where they can be sandwiched between retainer plates (88, 90). A pusher plate (94) pushes the bags off the lowerator (92) into the carton and is tilted to correspond to the tilt angle of the carton.Type: GrantFiled: July 24, 2007Date of Patent: April 12, 2011Assignee: Douglas Machine, Inc.Inventors: Anthony Rodney Moske, Ronald Matthew Gust
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Patent number: 7849770Abstract: A cutting apparatus cuts shrink wrap film residing in a roll. The apparatus includes a first roller pair receiving the film from the roll and carrying the film away from the roll; and without the need for a second roller pair to receive the cut sheet of film. Film snap-back is prevented by cutting the film between a shear deck with teeth and a rotating blade with teeth intermeshing with the teeth of the shear deck. A method for cutting a sheet of shrink wrap film, includes: feeding the film into a first roller pair; and cutting the film between the first roller pair and the second roller pair using a rotating knife with a number of teeth intermeshing with a shear bar with teeth.Type: GrantFiled: July 21, 2005Date of Patent: December 14, 2010Assignee: Douglas Machine, Inc.Inventors: Daniel Leonard Floding, Paul Howard Wagner, Ronald Matthew Gust, Irvan Leo Pazdernik, Richard Jerome Schoeneck
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Patent number: 7823366Abstract: Apparatus selectively processes a substrate using radiant energy. The substrate can consist of any target material having a portion to be processed using the radiant energy and a larger portion to be unprocessed. The apparatus includes a source of radiant energy (preferably a quantum cascade laser) that has a customizable spectrum that can be configured to be specifically absorbed only by the portion to be processed, and a control system for targeting the radiant energy only at the portion to be processed. Specific examples of the use of the apparatus and method are in the technologies of heat-shrinking polyethylene film, fusing toner to paper in a laser printer, heating reaction vessels in DNA testing, and temperature profiling bottle pre-forms.Type: GrantFiled: December 22, 2004Date of Patent: November 2, 2010Assignee: Douglas Machine, Inc.Inventor: Richard Jerome Schoeneck
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Patent number: 7533768Abstract: Product is conveyed as a continuous stream by a meter conveyor (12) unto a transfer plate (32) and a transfer device (42). The transfer device (42) is movable between a retracted position and an extended position extending over a sweep conveyor (22). In a preferred form, the transfer device (42) is in the form of a thin piece of flexible material and is moved in the conveying direction from the retracted position to the extended position by engaging with the sweep conveyor (22) and is moved to the retracted position by being wrapped around a rotated roller (46). Product is transferred from the transfer device (42) to the sweep conveyor (22) as the transfer device (42) moves from the extended position to the retracted position and is engaged by a metering bar (52ba, 52ca) which controls the product on the sweep conveyor (22) until the product group leaves the transfer device (42). With nested product, the leading edge of the transfer device (42) is scalloped to represent the product bottom leading edge.Type: GrantFiled: May 1, 2007Date of Patent: May 19, 2009Assignee: Douglas Machine, Inc.Inventors: Daniel Leonard Floding, Thomas Harold Peterman, Irvan Leo Pazdernik, Richard Jerome Schoeneck, Paul Howard Wagner, Chad W. Hahn, Gene Allen Corle
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Patent number: 7222716Abstract: Product is conveyed as a continuous stream by a meter conveyor (12) unto a transfer plate (32) and a transfer device (42). The transfer device (42) is movable between a retracted position and an extended position extending over a sweep conveyor (22). In a preferred form, the transfer device (42) is in the form of a thin piece of flexible material and is moved in the conveying direction from the retracted position to the extended position by engaging with the sweep conveyor (22) and is moved to the retracted position by being wrapped around a rotated roller (46). Product is transferred from the transfer device (42) to the sweep conveyor (22) as the transfer device (42) moves from the extended position to the retracted position and is engaged by a metering bar (52ba) which controls the product acceleration on the sweep conveyor (22) to match the meter conveyor (12) until the product group leaves the transfer device (42).Type: GrantFiled: January 18, 2005Date of Patent: May 29, 2007Assignee: Douglas Machine, Inc.Inventors: Thomas Harold Peterman, Daniel Leonard Floding, Irvan Leo Pazdernik, Richard Jerome Schoeneck, Paul Howard Wagner
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Patent number: 7156607Abstract: An apparatus for stacking incoming items includes a receiving mechanism for receiving incoming items, a stacking mechanism for receiving items from the receiving mechanism and stacking the items in a stacking area, a buffering mechanism for receiving incoming items when the stacking mechanism is full, and a stack unloading mechanism. Methods of operation include receiving an item in an item receiving mechanism, moving the item receiving mechanism to track the motion of a stacking mechanism, transferring the item from the receiving mechanism to the stacking mechanism, stacking the item in a stacking area, and unloading the stacking area when the stacking area is full of items.Type: GrantFiled: October 7, 2003Date of Patent: January 2, 2007Assignee: Douglas Machine, Inc.Inventors: David L. Anderson, Chad W. Hahn, Jason P. Lattimer
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Patent number: 7155876Abstract: A heat tunnel for applying heated air to articles enclosed in shrink-wrap film includes at least one air supply unit; a conveyor; and a heat shroud spaced from the conveyor. Tha air supply unit includes a source of heated air, a fan, a heated air plenum, air ducts, and a return air plenum. Multiple air supply units can be provided along the conveyor to create a heat tunnel of desired length.Type: GrantFiled: October 7, 2003Date of Patent: January 2, 2007Assignee: Douglas Machine, Inc.Inventors: Bradley Jon VanderTuin, Richard Jerome Schoeneck, Irvan Leo Pazdernik, Bruce Malcolm Peterson, Paul Howard Wagner
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Patent number: 7073656Abstract: Holes are removed from nested product patterns by conveying products on a conveyance mechanism (12) through an infeed section (14) in nested pattern streams (a1, a2, b1, b2), into a narrowing section (24) of a width less than one and one half the product diameter. After the narrowing section (24), the product streams (a11, a21, b11, b21) enter into an expansion section (44) where products move into a side-by-side product stream (a12, a22, b12, b22). Thereafter, nested product streams (a13, a23, b13, b23) are formed, which can be combined to form nested product streams (A, B) which can be further processed as desired.Type: GrantFiled: October 21, 2004Date of Patent: July 11, 2006Assignee: Douglas Machine, Inc.Inventors: Ronald Matthew Gust, David Leon Anderson, Glenn Lambert Stroeing, Paul Howard Wagner
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Publication number: 20060086591Abstract: Holes are removed from nested product patterns by conveying products on a conveyance mechanism (12) through an infeed section (14) in nested pattern streams (a1, a2, b1, b2), into a narrowing section (24) of a width less than one and one half the product diameter. After the narrowing section (24), the product streams (a11, a21, b11, b21) enter into an expansion section (44) where products move into a side-by-side product stream (a12, a22, b12, b22). Thereafter, nested product streams (a13, a23, b13, b23) are formed, which can be combined to form nested product streams (A, B) which can be further processed as desired.Type: ApplicationFiled: October 21, 2004Publication date: April 27, 2006Applicant: Douglas Machine, Inc.Inventors: Ronald Gust, David Anderson, Glenn Stroeing, Paul Wagner
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Patent number: 7032360Abstract: An apparatus (10) is disclosed including a web of film (20) extending between first and second pairs of pinch rollers (12–15) and onto a vacuum table (18). A rotary cutter (46) positioned before the first pair of pinch rollers (12, 13) includes laterally extending and spaced knives (52) for creating cuts (54, 58) in the film (20) which expand into vent openings (54?) positioned over the sides (68) of the product (72) when the film (20) is wrapped around and shrunk upon the product (72). A further rotary cutter (30) positioned between the pairs of pinch rollers (12–15) includes a cut-off knife (36) and first and second blades (44). The cut-off knife (36) creates a cut (60) in the film (20) to form a single sheet of film (20) and includes notches (38) in its cutting edge to form tie strips (62) connecting the single sheet to the web of film (20).Type: GrantFiled: October 29, 2003Date of Patent: April 25, 2006Assignee: Douglas Machine, Inc.Inventors: Gerald Matthew Rutten, Jonathon Kyle Hoyme
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Publication number: 20050121289Abstract: Product is conveyed as a continuous stream by a meter conveyor (12) unto a transfer plate (32) and a transfer device (42). The transfer device (42) is movable between a retracted position and an extended position extending over a sweep conveyor (22). In a preferred form, the transfer device (42) is in the form of a thin piece of flexible material and is moved in the conveying direction from the retracted position to the extended position by engaging with the sweep conveyor (22) and is moved to the retracted position by being wrapped around a rotated roller (46). Product is transferred from the transfer device (42) to the sweep conveyor (22) as the transfer device (42) moves from the extended position to the retracted position and is engaged by a metering bar (52ba) which controls the product acceleration on the sweep conveyor (22) to match the meter conveyor (12) until the product group leaves the transfer device (42).Type: ApplicationFiled: January 18, 2005Publication date: June 9, 2005Applicant: Douglas Machine, Inc.Inventors: Thomas Peterman, Daniel Floding, Irvan Pazdernik, Richard Schoeneck, Paul Wagner
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Patent number: 6843360Abstract: Product is conveyed as a continuous stream by a meter conveyor (12) unto a transfer plate (32) and a transfer device (42). The transfer device (42) is movable between a retracted position and an extended position extending over a sweep conveyor (22). In a preferred form, the transfer device (42) is in the form of a thin piece of flexible material and is moved in the conveying direction from the retracted position to the extended position by engaging with the sweep conveyor (22) and is moved to the retracted position by being wrapped around a rotated roller (46). Product is transferred from the transfer device (42) to the sweep conveyor (22) as the transfer device (42) moves from the extended position to the retracted position and is engaged by a metering bar (52ba) which controls the product acceleration on the sweep conveyor (22) to match the meter conveyor (12) until the product group leaves the transfer device (42).Type: GrantFiled: March 27, 2002Date of Patent: January 18, 2005Assignee: Douglas Machine, Inc.Inventors: Thomas Harold Peterman, Daniel Leonard Floding, Irvan Leo Pazdernik, Richard Jerome Schoeneck, Paul Howard Wagner
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Patent number: 6837360Abstract: Product is conveyed as a continuous stream by a meter conveyor (12) unto a transfer plate (32) and a transfer device (42). The transfer device (42) is movable between a retracted position and an extended position extending over a sweep conveyor (22). In a preferred form, the transfer device (42) is in the form of a thin piece of flexible material and is moved in the conveying direction from the retracted position to the extended position by engaging with the sweep conveyor (22) and is moved to the retracted position by being wrapped around a rotated roller (46). Product is transferred from the transfer device (42) to the sweep conveyor (22) as the transfer device (42) moves from the extended position to the retracted position and is engaged by a metering bar (52ba) which controls the product acceleration on the sweep conveyor (22) to match the meter conveyor (12) until the product group leaves the transfer device (42).Type: GrantFiled: June 19, 2002Date of Patent: January 4, 2005Assignee: Douglas Machine, Inc.Inventor: Richard Jerome Schoeneck
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Patent number: 6837664Abstract: A rotary unloader (10) removes articles (26) from a magazine (24) and includes a carriage (12) rotating about a primary axis and a carrier (14), attached to the carriage (12), rotating about a secondary axis. The secondary axis is separated from the primary axis by a first radial spacing. The carrier (14) may have one or more handlers (16) attached at a second radial spacing. Where the carrier (14) includes multiple handlers (16), they may advantageously be equidistantly spaced and circumferentially located around the carrier (14). The first radial spacing is smaller than the second radial spacing to ensure an outward disposition of the handler (16) with regard to the primary axis. Rotation of the carriage (12) about the primary axis may be coupled to the rotation of the carrier (14) about the secondary axis by a gear system. The simultaneous rotation of the carriage (12) and the carrier (14) cooperates to produce a reciprocal motion of the handler (16).Type: GrantFiled: September 10, 2002Date of Patent: January 4, 2005Assignee: Douglas Machine, Inc.Inventors: Donovan R. Blakesley, Paul H. Wagner, Jeremiah D. Rumohr, David L. Anderson
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Patent number: 6793064Abstract: Product is conveyed as a continuous stream by a meter conveyor (12) unto a transfer plate (32) and a transfer device (42). The transfer device (42) is movable between a retracted position and an extended position extending over a sweep conveyor (22). In a preferred form, the transfer device (42) is in the form of a thin piece of flexible material and is moved in the conveying direction from the retracted position to the extended position by engaging with the sweep conveyor (22) and is moved to the retracted position by being wrapped around a rotated roller (46). Product is transferred from the transfer device (42) to the sweep conveyor (22) as the transfer device (42) moves from the extended position to the retracted position and is engaged by a metering bar (52ba) which controls the product acceleration on the sweep conveyor (22) to match the meter conveyor (12) until the product group leaves the transfer device (42).Type: GrantFiled: February 12, 2003Date of Patent: September 21, 2004Assignee: Douglas Machine, Inc.Inventors: Richard Jerome Schoeneck, Ronald Matthew Gust
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Patent number: D517578Type: GrantFiled: April 13, 2005Date of Patent: March 21, 2006Assignee: Douglas Machine, Inc.Inventors: Bradley Jon Vander Tuin, Paul Howard Wagner