Patents by Inventor Eric C. Lawrence

Eric C. Lawrence 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).

  • Patent number: 10238120
    Abstract: In some embodiments, a dough pressing system includes means for coupling a cover to a pressing platen, wherein the cover can reduce the wear caused to the pressing platen by the heat and pressure used to process one or more products. The cover optionally can be configured to be removably attached to the pressing platen with vacuum pressure. In some implementations, one or more spacers are placed between the cover and the pressing platen. The thickness of the spacers can adjust the thickness and diameter of products processed by the pressing platen. For example, to increase uniformity among products pressed together in a press cycle, the spacers can have different thicknesses that correspond with the location of the spacer in the pattern of dough balls.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: March 26, 2019
    Assignee: Lawrence Equipment Inc.
    Inventor: Eric C. Lawrence
  • Publication number: 20180332863
    Abstract: In some embodiments, a dough pressing system includes means for coupling a cover to a pressing platen, wherein the cover can reduce the wear caused to the pressing platen by the heat and pressure used to process one or more products. The cover optionally can be configured to be removably attached to the pressing platen with vacuum pressure. In some implementations, one or more spacers are placed between the cover and the pressing platen. The thickness of the spacers can adjust the thickness and diameter of products processed by the pressing platen. For example, to increase uniformity among products pressed together in a press cycle, the spacers can have different thicknesses that correspond with the location of the spacer in the pattern of dough balls.
    Type: Application
    Filed: July 27, 2018
    Publication date: November 22, 2018
    Inventor: Eric C. Lawrence
  • Patent number: 10058102
    Abstract: In some embodiments, a dough pressing system includes means for coupling a cover to a pressing platen, wherein the cover can reduce the wear caused to the pressing platen by the heat and pressure used to process one or more products. The cover optionally can be configured to be removably attached to the pressing platen with vacuum pressure. In some implementations, one or more spacers are placed between the cover and the pressing platen. The thickness of the spacers can adjust the thickness and diameter of products processed by the pressing platen. For example, to increase uniformity among products pressed together in a press cycle, the spacers can have different thicknesses that correspond with the location of the spacer in the pattern of dough balls.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: August 28, 2018
    Assignee: Lawrence Equipment Inc.
    Inventor: Eric C. Lawrence
  • Patent number: 8689685
    Abstract: In some embodiments, a dough pressing system includes a cover coupled to a pressing platen, wherein the cover can reduce the wear caused to the pressing platen by the heat and pressure used to process one or more products. The cover optionally can be configured to be removably attached to the pressing platen with vacuum pressure. In some implementations, one or more spacers are placed between the cover and the pressing platen. The thickness of the spacers can adjust the thickness and diameter of products processed by the pressing platen. For example, to increase uniformity among products pressed together in a press cycle, the spacers can have different thicknesses that correspond with the location of the spacer in the pattern of dough balls.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: April 8, 2014
    Assignee: Lawrence Equipment Inc.
    Inventor: Eric C. Lawrence
  • Publication number: 20120114812
    Abstract: In some embodiments, a dough pressing system includes means for coupling a cover to a pressing platen, wherein the cover can reduce the wear caused to the pressing platen by the heat and pressure used to process one or more products. The cover optionally can be configured to be removably attached to the pressing platen with vacuum pressure. In some implementations, one or more spacers are placed between the cover and the pressing platen. The thickness of the spacers can adjust the thickness and diameter of products processed by the pressing platen. For example, to increase uniformity among products pressed together in a press cycle, the spacers can have different thicknesses that correspond with the location of the spacer in the pattern of dough balls.
    Type: Application
    Filed: November 4, 2010
    Publication date: May 10, 2012
    Applicant: LAWRENCE EQUIPMENT, INC.
    Inventor: Eric C. LAWRENCE
  • Publication number: 20080073178
    Abstract: An apparatus for combining delivery of objects from a first transport conveyor (34) and a second transport conveyor (40), comprising a first continuous discharge conveyor (36), a second continuous discharge conveyor (42) which is rotatable about a longitudinal axis; means for pivoting the second discharge conveyor about the longitudinal axis between a lower position in which the discharge ends of the first discharge conveyor and the second discharge conveyor are adjacent, and an upper position in which the discharge ends of the first discharge conveyor and the second discharge conveyor are spaced apart sufficiently to accommodate the objects therebetween; and means for synchronizing the pivoting means with discharge of the objects from the first discharge conveyor and the second discharge conveyor.
    Type: Application
    Filed: October 8, 2004
    Publication date: March 27, 2008
    Applicant: LAWRENCE EQUIPMENT, INC.
    Inventor: Eric C. Lawrence
  • Patent number: 7264107
    Abstract: A system for transferring an object between driven conveyors comprising an upper conveyor comprising a discharge end, a first belt for transporting the object, the first belt engaging a first end roller and a gooseneck roller, where the first end roller is disposed below the gooseneck roller by a displacement sufficient to create a downward sloping section in the first belt; a transfer guide located adjacent to the discharge end of the upper conveyor, to receive the object from the downward sloping section; a lower conveyor comprising a second belt to receive the object from the transfer guide; and means for driving the upper conveyor and lower conveyor such that the first belt moves towards the transfer guide and the second belt moves away from transfer guide. A lower run of the first belt may be disposed above an upper run of the second belt by a belt spacing approximately equal to or less than the thickness of the object.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: September 4, 2007
    Assignee: Lawrence Equipment, Inc.
    Inventor: Eric C. Lawrence
  • Patent number: 7097026
    Abstract: An apparatus for transferring an object from a first conveyor to a second conveyor, the apparatus having a drive roller; a guide having a first end and a length, the first end being positioned adjacent the drive roller; a guide roller, the guide roller being magnetic and positioned adjacent to the guide along the length of the guide; and a conveyor positioned around the drive roller, the guide, and the guide roller; wherein the conveyor has a ferrous component causing the conveyor to be moveably coupled to the guide roller.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: August 29, 2006
    Assignee: Lawrence Equipment, Inc.
    Inventor: Eric C. Lawrence
  • Patent number: 6585477
    Abstract: A counter-stacker includes an infeed conveyor having a plurality of lanes for containing planar food articles. A vacuum conveyor system is located adjacent to the infeed conveyor and includes a plurality of vacuum conveyors. Each vacuum conveyor includes a frame, a pair of pulleys rotationally mounted to the frame, a drive shaft coupled to one of the pair of pulleys, a vacuum generator for generating vacuum conditions within the frame, and a vacuum belt mounted to the pair of pulleys. Each vacuum conveyor is pivotable about one of the pair of pulleys. An oscillating catch cup frame containing a plurality of catch cups is used to stack the planar food articles.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: July 1, 2003
    Assignee: Lawrence Equipment
    Inventor: Eric C. Lawrence
  • Patent number: 6398539
    Abstract: A pizza die includes an outer die ring and a plate ring. The outer die ring and an inner die plate are spring-biased away from the die mount plate. The outer die ring includes a plurality of axial ridges located on a portion of the inner circumferential surface of the outer die ring. The inner die plate includes a step on which a flexible seal is seated. A spring-biased plate ring compresses the flexible seal on the seat. The flexible seal includes axial grooves on its outer circumference. The axial grooves engage with the corresponding axial ridges on the outer die ring. The axial grooves act as passageways to vent trapped air within the pizza die. The axial ridges provide a self-cleaning mechanism to remove pizza dough lodged in the axial grooves.
    Type: Grant
    Filed: August 15, 2000
    Date of Patent: June 4, 2002
    Assignee: Lawrence Equipment, Inc.
    Inventor: Eric C. Lawrence
  • Patent number: 6024554
    Abstract: A food product sheeter includes first, second, third and fourth rollers rotatably supported on a frame. The fourth roller is positioned above the first and second rollers, and is separated from the first roller by gap which serves as the entrance for dough into the sheeter. The fourth roller acts as a pressurizing roller and drives the food product into a slot between the first and second rollers. The third roller engages against the first roller to cut out food product shapes. The first and second rollers can have smooth non-stick surfaces to facilitate release of the cut-out food product shapes, without gaps or voids forming in them. In a second embodiment, the first roller has a pattern of non-stick surfaces, for example, in the shape of circles. The non-stick surfaces facilitate release of the cut food product shapes off the first roller. The pattern of the non-stick surface on the front roller is indexed to the cutting surfaces on the third roller, to maintain them in registration.
    Type: Grant
    Filed: October 24, 1997
    Date of Patent: February 15, 2000
    Assignee: Lawrence Equipment
    Inventor: Eric C. Lawrence
  • Patent number: 6010325
    Abstract: A machine for pressing and forming food products has a die including an inner die plate surrounded by an outer die ring. The inner die plate is axially movable relative the outer die ring, between an extended state and a compressed state. A circumferential flexible seal connects the inner die to the outer die ring. During operation, when the inner die moves from the extended state to the compressed state, the seal creates a groove for the formation of a ridge, or crust of pizza dough. The die is more easily manufactured, has a longer useful life, improves the reliability of the machine, and allows for making rising crust pizzas.
    Type: Grant
    Filed: April 8, 1998
    Date of Patent: January 4, 2000
    Assignee: Lawrence Equipment
    Inventor: Eric C. Lawrence
  • Patent number: 5918533
    Abstract: A system for making tortillas includes a sheeter, a roller/heater, and an oven. Tortillas are die cut into an oblong shape in the sheeter. The roller/heater rolls the tortillas into a round shape and conductively heats the tortillas simultaneously on the top and bottom surfaces, gelatinizing the food product and sealing in moisture. The tortillas are then baked in an oven. Slot marks on the tortillas are avoided as the roller/heater has upper and lower belts have continuous surfaces.
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: July 6, 1999
    Assignee: Lawrence Equipment, Inc.
    Inventors: John C. Lawrence, Mark Lawrence, Eric C. Lawrence
  • Patent number: 5564554
    Abstract: A reciprocating accumulation conveyor temporarily accumulates pressed tortillas delivered periodically from a press and delivers them onto an oven belt in a substantially continuous supply, thereby providing more uniform baking. The reciprocating accumulation conveyor has an accumulation belt which accelerates to match the speed of the press belt in the press, when the press belt moves periodically between pressing cycles, to accumulate the pressed batch of tortillas. The accumulation belt simultaneously extends partially over the prior batch moving onto the oven belt, and drops down behind the lasts row of the prior batch on the oven belt. The accumulation conveyor belt then advances at a delivery speed to transfer the tortillas onto the oven belt.
    Type: Grant
    Filed: November 1, 1994
    Date of Patent: October 15, 1996
    Assignee: Lawrence Equipment, Inc.
    Inventor: Eric C. Lawrence
  • Patent number: 5231919
    Abstract: An improvement in a dough ball pressing apparatus in which the continuous conveyor belt is provided with metal strips at predetermined spaced locations along each edge of the conveyor belt and a pair of proximity switches are positioned on the apparatus adjacent the edges of the conveyor belt for detecting the metal strips. The proximity switches cause the belt driving mechanism to stop upon detecting a metal strip for precisely locating the belt and controlling the distance of travel in each cycle. The conveyor belt is provided as a flat length with ends that are realeasably connected by a pin for allowing easy installation of the belt without disassembling the belt drive mechanism.
    Type: Grant
    Filed: October 16, 1992
    Date of Patent: August 3, 1993
    Assignee: Lawrence Equipment, Inc.
    Inventors: Eric C. Lawrence, Glenn A. Shelton
  • Patent number: 4934513
    Abstract: A conveyor belt discharge apparatus located between a first and a second conveyor belt, which removes flattened dough balls adhering to the first conveyor belt and transports the dough balls to the second conveyor belt by a rotational movement of the apparatus in which a plurality of resilient sheets of the apparatus make periodic conforming contact with the discharge end of the first conveyor belt.
    Type: Grant
    Filed: October 19, 1988
    Date of Patent: June 19, 1990
    Assignee: Lawrence Equipment, Inc.
    Inventors: John W. Kirkpatrick, Eric C. Lawrence