Patents by Inventor Glenn A. Sandberg

Glenn A. Sandberg 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).

  • Publication number: 20040016331
    Abstract: A slicing and conveying system forms a three or more flavor-combined draft. A first slicing machine slices a succession of first slices. A first output conveyor beneath the first slicing machine receives the first slices in a first draft. A second slicing machine slices a succession of second slices. A second output conveyor beneath the second slicing machine receives the second slices in a second draft. A pass-through conveyor transfers the first draft to the second output conveyor, wherein the second draft is added to the first draft to form a first combined draft. The first slicing machine also slices a succession of third slices in a third draft. An overlap conveyor receives the first combined draft and merges the first combined draft with the third draft on the overlap conveyor to form an elongated combined draft. A first optical sensor determines a length of the first draft. A second length sensor determines a length of the second draft. A third length sensor determines a length of the third draft.
    Type: Application
    Filed: July 26, 2002
    Publication date: January 29, 2004
    Applicant: Formax, Inc.
    Inventors: Thomas C. Wolcott, Glenn Sandberg
  • Patent number: 6669005
    Abstract: A feed conveyor is operable in a first direction to deposit a stream of articles across a width of a downstream conveyor operating along a second direction, the second direction being at an angle to the first direction. The feed conveyor is an extendable conveyor that is accurately controlled for circulating speed, extension speed and retraction speed, to deposit articles transversely onto the downstream conveyor in a tightly spaced, grid pattern. The extension and retraction speed are controlled by a first servomotor and the conveying speed of the feed conveyor is controlled by a second servomotor.
    Type: Grant
    Filed: July 23, 2002
    Date of Patent: December 30, 2003
    Assignee: Formax, Inc.
    Inventors: Glenn Sandberg, Scott A. Lindee
  • Publication number: 20030221528
    Abstract: An improved orifice plate assembly for a loaf slicing machine, the orifice plate assembly located adjacent to a moving slicing blade includes a frame defining an opening and a first orifice-defining member and a second orifice-defining member slidably mounted together slidably on the frame. The first orifice-defining member and the second orifice-defining member, together define an orifice. An adjustment mechanism is operatively connected to the frame and to each of the first and second orifice-defining members, the adjustment mechanism when adjusted changes the orifice dimension between the first and second orifice-defining members without substantially changing a centerline location of the orifice. The adjustment mechanism includes a stud fixed to the first orifice-defining member, and two links pivotally mounted to the frame and engaged to two rods fixed to the second orifice-defining member.
    Type: Application
    Filed: June 4, 2002
    Publication date: December 4, 2003
    Inventors: Glenn Sandberg, Glen F. Pryor, Scott A. Lindee
  • Publication number: 20030152663
    Abstract: A patty-forming apparatus includes a mold plate having patty-forming cavities and a breather plate arranged over the mold plate. A fill slot is arranged below or above the mold cavities to fill food product into the mold cavity when the mold plate is in a fill position. The breather plate, arranged on a side of the mold plate opposite the fill slot, includes a fill recess open toward the mold plate and arranged to be in registry with the cavities when the mold plate is in the fill position to increase a transverse food product flow area along the longitudinal direction to assist filling of the cavity with food product.
    Type: Application
    Filed: February 8, 2002
    Publication date: August 14, 2003
    Inventor: Glenn Sandberg
  • Publication number: 20030034225
    Abstract: A feed conveyor is operable in a first direction to deposit a stream of articles across a width of a downstream conveyor operating along a second direction, the second direction being at an angle to the first direction. The feed conveyor is an extendable conveyor that is accurately controlled for circulating speed, extension speed and retraction speed, to deposit articles transversely onto the downstream conveyor in a tightly spaced, grid pattern. The extension and retraction speed are controlled by a first servomotor and the conveying speed of the feed conveyor is controlled by a second servomotor.
    Type: Application
    Filed: July 23, 2002
    Publication date: February 20, 2003
    Inventors: Glenn Sandberg, Scott A. Lindee
  • Patent number: 6517340
    Abstract: A mold plate assembly for a patty-forming apparatus includes a reciprocating mold plate having patty-forming cavities, with at least two rows of cavities aligned in a longitudinal direction, and a fill plate arranged facing the mold plate. The mold plate reciprocates between a cavity fill position and a patty discharge or knock-out position. Fill slots are arranged through the fill plate to fill food product into said mold cavities when the mold plate is in the fill position. A valve plate is provided facing the fill plate and having valve openings corresponding to the fill openings of the fill plate. The valve plate is reciprocated between an open and a closed position, to fill food product into the mold cavities when the mold plate is in the fill position, and the valve plate is in an open position, or to prevent flow through the fill openings when the valve plate is in the closed position.
    Type: Grant
    Filed: February 22, 2001
    Date of Patent: February 11, 2003
    Assignee: Formax, Inc.
    Inventor: Glenn Sandberg
  • Publication number: 20020115402
    Abstract: A mold plate assembly for a patty-forming apparatus includes a reciprocating mold plate having patty-forming cavities, with at least two rows of cavities aligned in a longitudinal direction, and a fill plate arranged facing the mold plate. The mold plate reciprocates between a cavity fill position and a patty discharge or knock-out position. Fill slots are arranged through the fill plate to fill food product into said mold cavities when the mold plate is in the fill position. A valve plate is provided facing the fill plate and having valve openings corresponding to the fill openings of the fill plate. The valve plate is reciprocated between an open and a closed position, to fill food product into the mold cavities when the mold plate is in the fill position, and the valve plate is in an open position, or to prevent flow through the fill openings when the valve plate is in the closed position.
    Type: Application
    Filed: February 22, 2001
    Publication date: August 22, 2002
    Inventor: Glenn Sandberg
  • Patent number: 6428303
    Abstract: A patty forming machine includes a frame structure supporting a compartment which encloses a mechanical reciprocating device, the compartment having a front wall. A mold plate locate outside of the front wall includes cavities for receiving food product for the formation of patties. At least one drive rod having a circular cross-section penetrates the front wall and connects the mold plate to the reciprocating device. The machine also includes a vacuum bar assembly having a vacuum bar for interleaving flexible paper sheets with formed patties. The vacuum bar is driven by a reciprocating rod having a round cross-section and penetrating through the front wall of the housing to operatively connect the vacuum bar to the reciprocating device. The frame structure of the machine is underlied by a bottom skin which is spaced below a horizontal frame to provide an access gap for clear viewing and maintenance of a top of the bottom skin.
    Type: Grant
    Filed: June 4, 1999
    Date of Patent: August 6, 2002
    Assignee: Formax, Inc.
    Inventors: Scott A. Lindee, Glenn Sandberg
  • Patent number: 6368092
    Abstract: A patty forming machine includes a mechanical compartment having a front wall and surrounding a reciprocating device, a reciprocating mold plate having cavities for forming patties, and a reciprocating knock-out device for knocking the patties from the mold plate. The knock-out device includes vertically reciprocating knock-out rods, knock-out bar arms connected to the knock-out rods, a bar connected to the knock-out bar arms, and a plurality of cups connected to the bar. The knock-out rods are guided both above and below the knock-out bar arms for vertical reciprocating movement. The knock-out rods are connected together by a tie rod and clamp blocks located at opposite ends of the tie bar. The knock-out rods are driven into vertical reciprocation by knock-out arms which are driven to pivot by rotating cams.
    Type: Grant
    Filed: June 4, 1999
    Date of Patent: April 9, 2002
    Assignee: Formax, Inc.
    Inventors: Scott A. Lindee, Glenn Sandberg
  • Publication number: 20010038865
    Abstract: A patty forming machine includes a frame structure supporting a compartment which encloses a mechanical reciprocating device, the compartment having a front wall. A mold plate locate outside of the front wall includes cavities for receiving food product for the formation of patties. At least one drive rod having a circular cross-section penetrates the front wall and connects the mold plate to the reciprocating device. The machine also includes a vacuum bar assembly having a vacuum bar for interleaving flexible paper sheets with formed patties. The vacuum bar is driven by a reciprocating rod having a round cross-section and penetrating through the front wall of the housing to operatively connect the vacuum bar to the reciprocating device. The frame structure of the machine is underlied by a bottom skin which is spaced below a horizontal frame to provide an access gap for clear viewing and maintenance of a top of the bottom skin.
    Type: Application
    Filed: June 4, 1999
    Publication date: November 8, 2001
    Inventors: SCOTT A. LINDEE, GLENN SANDBERG
  • Patent number: 6152284
    Abstract: A conveyor system is set forth. The conveyor system includes first and second strip conveyors. The first and second strip conveyors comprise a common input end that is common to both of the first and second strip conveyors. A lateral drive is disposed to drive the common input end in a lateral direction. A first output portion terminates the output of the first strip conveyor and a second output portion terminates the output of the second strip conveyor. A lateral adjustment assembly is used for laterally adjusting the first and second output portions independent of one another. The first and second strip conveyors are particularly useful in a conveyor system for accepting one or more streams of product input and converting the one or more streams to a format that is suitable for automatic loading to a subsequent machine.
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: November 28, 2000
    Inventors: Glenn A. Sandberg, Scott A. Lindee
  • Patent number: 5810149
    Abstract: A conveyor system for accepting one or more streams of product input and converting the one or more streams to a format that is suitable for automatic loading to a subsequent machine is disclosed. The conveyor system comprises an input level shifting conveyor disposed to receive the one or more product input streams. The level shifting conveyor is movable between a first upper level position and second lower level position. An upper level strip conveyor is disposed to receive product from the input level shifting conveyor when the input level shifting conveyor is moved to the first upper level position. The upper level strip conveyor includes an output end that is in a fixed position to direct product received by the upper level strip conveyor to a first lateral alignment position of the format. A lower level strip conveyor is disposed to receive product from the level shifting conveyor when the level shifting conveyor is moved to the second lower level position.
    Type: Grant
    Filed: November 26, 1996
    Date of Patent: September 22, 1998
    Assignee: Formax, Inc.
    Inventors: Glenn A. Sandberg, Scott A. Lindee
  • Patent number: 5704265
    Abstract: A versatile high speed slicing machine moves first and second food loaves along parallel loaf paths into a slicing station where both loaves are sliced by a cyclically driven knife blade. There are independent loaf feed drives so that slices cut from one loaf may be thicker than slices from the other. The conveyor/transfer system onto which food loaves are deposited as cut includes a receiver located below the slicing station; a lift mechanism moves the receiver down during slicing so that slices always fall about the same distance after being cut. The receiver includes a plural-belt horizontal receiver conveyor with recieving pin wheels located between the belts that periodically discharges groups of food loaf slices onto a deceleration conveyor, from which the groups are fed onto a multi-belt scale conveyor. The scale conveyor is aligned with two receiver weighing grids, each grid including plural grid elements interleaved one-for-one with the scale conveyor belts.
    Type: Grant
    Filed: February 28, 1996
    Date of Patent: January 6, 1998
    Assignee: Formax, Inc.
    Inventors: Arthur A. Johnson, Scott A. Lindee, Glenn A. Sandberg
  • Patent number: 5628237
    Abstract: A high speed slicing machine supports first and second food loaves for movement along parallel loaf paths into a slicing station where both loaves are sliced by one cyclically driven knife blade; the slices are stacked or shingled in groups on a receiving conveyor located below the slicing station. Independent loaf feed drives are provided; slices cut from one loaf may be thicker than slices from the other. The machine combines manual and automated mechanisms to load food loaves onto the food paths. These mechanisms share a central barrier that is used only during loading; at other times the barrier is clear of the loaf paths. The automated loaf loading mechanism has a sweep to push one or more loaves onto a support defining the loaf paths. There are two grippers, one on each loaf path; each grips the end of a loaf remote from the slicing station.
    Type: Grant
    Filed: October 11, 1994
    Date of Patent: May 13, 1997
    Assignee: Formax, Inc.
    Inventors: Scott A. Lindee, Glenn A. Sandberg, Wilbur A. Janssen
  • Patent number: 5566600
    Abstract: A versatile high speed slicing machine moves first and second food loaves along parallel loaf paths into a slicing station where both loaves are sliced by a cyclically driven knife blade. There are independent loaf feed drives so that slices cut from one loaf may be thicker than slices from the other. The conveyor/transfer system onto which food loaves are deposited as cut includes a receiver located below the slicing station; a lift mechanism moves the receiver down during slicing so that slices always fall about the same distance after being cut. The receiver includes a horizontal conveyor that periodically discharges groups of food loaf slices onto a deceleration conveyor, from which the groups are fed onto a multi-belt scale conveyor. The scale conveyor is aligned with two receiver grids, each grid including plural grid elements interleaved one-for-one with the scale conveyor belts. In each machine cycle a group of food loaf slices is deposited on a grid and weighed.
    Type: Grant
    Filed: October 11, 1994
    Date of Patent: October 22, 1996
    Assignee: Formax, Inc.
    Inventors: Arthur A. Johnson, Scott A. Lindee, Glenn A. Sandberg
  • Patent number: 4821376
    Abstract: A mold station of a food patty molding machine in which a food pump pumps a moldable food product through a fill passage into mold cavities in a cyclically reciprocating mold plate, with a multi-orifice plate interposed in the fill passage and a stripper plate, slidably mounted immediately adjacent the orifice plate, having a multiplicity of fill openings aligned one-for-one with the fill orifices; a stripper plate drive, synchronized with the mold plate drive, slides the stripper plate a short distance to a seal-off location once in each mold plate cycle. The spacings between fill openings in the stripper plate are made large enough to close all of the fill orifices when the stripper plate is moved to its seal-off location; the stripper plate drive shifts the stripper plate to its seal-off location before movement of the mold plate toward its discharge position can create an open outlet path from the food pump through the mold cavities to outside of the mold station.
    Type: Grant
    Filed: June 2, 1988
    Date of Patent: April 18, 1989
    Assignee: Formax, Inc.
    Inventor: Glenn A. Sandberg
  • Patent number: 4768260
    Abstract: A food patty molding machine of the horizontally reciprocating mold plate type, using a plunger type food pump, has its food product storage hopper set off to one side, horizontally offset from the mold plate and its drive and also clear of the food pump plunger and its drive; the mold plate and plunger pump drives are also offset horizontally as well as vertically so that the pump feed path is an offset V and there is clear access to the mold plate, to the food pump plunger, and to their drives for both machine changeover and maintenance purposes. All machine operations are driven by fluid pressure drive motors to facilitate changes in the overall time of the machine cycle by varying only one operating interval, preferably the dwell of the machine occurring immediately after knock-out.
    Type: Grant
    Filed: October 7, 1987
    Date of Patent: September 6, 1988
    Assignee: Alfa-Laval AB
    Inventor: Glenn A. Sandberg
  • Patent number: 4697308
    Abstract: A molding mechanism for molding food patties from a whole fiber food product (e.g. poultry breasts, fish filets, large pieces of pork muscle, etc.) comprising a mold plate interposed between planar surfaces of a cover member and a fill member and moving cyclically between a fill position and a discharge position, the mold plate including plural mold cavities that are aligned one-for-one with fill apertures in the fill member through which the food product is pumped under substantial pressure when the mold plate is in its fill position. A plurality of shear blades, one for each mold cavity, are positioned adjacent the fill member intermediate the fill and discharge positions of the mold plate; the shear blades are driven into engagement with the mold plate each time the mold plate moves toward its discharge position to shear food fibers trailing from the mold cavities between the mold plate and the fill member.
    Type: Grant
    Filed: October 29, 1986
    Date of Patent: October 6, 1987
    Assignee: Formax, Inc.
    Inventor: Glenn A. Sandberg
  • Patent number: 4428263
    Abstract: A high volume food load slicing machine comprising a pair of loaf feed belt conveyors that continuously advance a food loaf along a downwardly inclined path through a collar into a slicing station at which a rotating and orbiting knife slices the load includes a variable speed knife rotation drive independent of the main drive that orbits the knife and drives the loaf conveyors. A hydrostatic speed variator in the drive connection for the conveyors, with speed corrections made by a stepper motor, affords precision control of slice thickness. A split collar and associated sensor afford continuous sensing of the loaf cross section to provide effective slice thickness correction; the collar is of molded machinable resin so that the knife can cut a working surface on the collar to a precise contour. The collar includes vacuum means to hold the butt end of a loaf for slicing.
    Type: Grant
    Filed: October 8, 1981
    Date of Patent: January 31, 1984
    Assignee: Formax, Inc.
    Inventors: Scott A. Lindee, Glenn A. Sandberg
  • Patent number: D340737
    Type: Grant
    Filed: October 18, 1991
    Date of Patent: October 26, 1993
    Inventor: Glenn A. Sandberg