Patents Assigned to Laitram
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Patent number: 5709964Abstract: A battery module including multiple battery packs having electrode terminals and bypass terminals. The battery packs are compactly arranged end to end within the module with a first end of a forward battery pack proximate a second end of a rearward battery pack. Positive and negative electrode terminals at the first end of a battery pack are electrically connected to the positive and negative electrodes of a battery contained within an outer casing. Auxiliary terminals at the first end are each connected to a corresponding auxiliary terminal at the second end by an individual conductive element, such as a thin ribbon conductor running along the casing just inside its outer layer.Type: GrantFiled: March 19, 1996Date of Patent: January 20, 1998Assignee: The Laitram CorporationInventors: Christian J. Christensen, Prabhat Jain
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Patent number: 5666742Abstract: A temperature modification assembly comprises a housing, a temperature modification element disposed in the housing, and a blower arranged to direct an air flow past the temperature modification element. The temperature modification assembly may further comprise at least one freely extending duct coupled to the housing, communicating with the blower and defining a pocket having a narrow profile; first and second freely extending ducts coupled to the housing and a blower arranged to direct a flow of air between the first and second ducts; and/or an open ended jacket cooperatively arranged with the housing and a blower arranged to circulate a flow of air between the temperature modification element and the interior of the jacket.Type: GrantFiled: December 10, 1993Date of Patent: September 16, 1997Assignee: The Laitram CorporationInventors: Christopher G. Greve, Ronald M. O'Connor
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Patent number: 5598916Abstract: Modular conveyor belt links have edge structure for occluding exit of pivot rods from the edge of the belt during operation of conveyor belts formed from pivotably connected end-to-end links. The links feature belt edge structure with an outer pivot rod entry aperture offset from the axis of aligned link end pivot rod holes in one set of link ends thereby forming a pivot joint axis. When the pivot rod is forced from the belt edge into the offset aperture and headed toward the pivot joint the plastic link is elastically deformed enough to permit entry of the rod. For example, an occlusion barrier wall disposed near the belt edge retains the rod in the pivot joint. A matrixing nest for the end of the pivot rod resident in its axial joint site is formed in the link material. From this nest the rod can be removed only by forced distortion of a rod end by a force greater than those forces encountered in the course of normal belt operation.Type: GrantFiled: December 7, 1994Date of Patent: February 4, 1997Assignee: The Laitram CorporationInventors: Paul L. Horton, Christopher J. Verdigets
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Patent number: 5597063Abstract: An article removal platform assembly with laterally movable finger plate is provided particularly suitable for abutting a conveyor belt as it passes over a sprocket wheel to remove glass articles and broken glass fragments from the belt. The generally rectangular finger plates are mounted in a lateral sliding configuration to a planar platform by at least three fasteners extending through mounting apertures through the finger plates 50, spaced to prevent lateral or longitudinal tilt. The mount has elongated fastening members adjustably aligned to let fingers mate in a conveyor belt and freely slide laterally a limited amount in either direction. Thus, the finger plates can slide side-to-side to follow belt wander when the fasteners engage ridges of the apertures through the finger plates. Also provided are snap-in caps for the apertures for maintaining a planar discharge surface having a constant coefficient of sliding friction that does not accumulate residue.Type: GrantFiled: November 6, 1995Date of Patent: January 28, 1997Assignee: The Laitram CorporationInventors: David W. Bogle, Timothy J. Hicks, Clinton T. Favre
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Patent number: 5569068Abstract: A method and apparatus for processing a fish body to remove skin therefrom includes a frame that supports multiple scraper arms. Each of the arms is pivotally or slideably mounted to the frame. Each of the arms has a first end portion attached to the frame at a structural support. The opposing end of the scraper arm is a "free" end that carries a scraper blade member. Each of the blade members has a holder portion and a blade portion pivotally connected to the blade holder. This pivotal attachment evenly distributes the scraping portion to the fish body during processing. By changing the tension of the springs that bias each arm into engagement with the fish body, the scraping tension can be adjusted so that it is very light. This prevents undesirable removal of the meat product that underlies the very thin skin outer surface.Type: GrantFiled: June 2, 1995Date of Patent: October 29, 1996Assignee: The Laitram CorporationInventors: Thomas J. DeRoche, Valerie S. Melancon, Matthew M. Lyle
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Patent number: 5554069Abstract: Apparatus and method for subdividing a fish body into a loin-containing portion and a viscera-containing portion. The apparatus includes a carrier, a cutting assembly, and a runway connecting the two. The cutting assembly and a fish body supported on the carrier are advanced relative to each other along the runway. Blades at the cutting assembly flank the runway and form a pair of angled cuts intersecting to form a V-cut that opens toward the ventral side of the fish body. The planes of the blades are separated by an angle of between 80.degree. and 160.degree., depending on fish species and size, to minimize the amount of loin meat separated with the viscera. Means are provided for setting the tilt of the longitudinal axis of the fish body relative to the path of the vertex of the V-cut so that the path extends between the backbone of the fish and its visceral cavity substantially from the vent to a point on the outside surface of the fish body in the vicinity of the eyes.Type: GrantFiled: June 1, 1995Date of Patent: September 10, 1996Assignee: The Laitram CorporationInventors: Ronald H. Burch, Andrew A. Corley, Eric W. Morales, Kirk T. Selenberg
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Patent number: 5544740Abstract: A conveying apparatus includes first and second shafts each having a sprocket mounted thereon for rotation with the shafts. A conveyor belt is engaged with the sprockets. A retaining clamp is mounted on one of the shafts adjoining one of the sprockets. The retaining clamp includes a body shaped to fit loosely around the shaft and a force-applying member disposed on the body for pressing the body against the shaft to prevent movement of the body along the shaft.Type: GrantFiled: July 25, 1994Date of Patent: August 13, 1996Assignee: The Laitram CorporationInventor: Darrell E. Kissee
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Patent number: 5529011Abstract: A connector for attaching equipment to an underwater cable includes a cylindrical race having a plurality of sections pivotably connected by a hinge. The sections can pivot about the hinge to enable the race to be opened and detached from the cable. The hinge includes a plurality of sockets and a hinge pin received in the sockets. The hinge pin can preferably be retracted from the sockets to unlock the hinge and inserted into the sockets to lock the hinge. A retaining member may be provided to prevent the hinge pin from falling out of the sockets when the hinge pin is retracted.Type: GrantFiled: February 23, 1995Date of Patent: June 25, 1996Assignee: Laitram CorporationInventor: Oneil J. Williams, Jr.
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Patent number: 5518109Abstract: A conveyor drive apparatus comprising a shaft having sprockets mounted thereon for rotation with the shafts. A conveyor belt is engaged by the sprockets. A key includes a body shaped to fit loosely in a groove along the length of the outer surface of the shaft. The key further includes a force-applying member disposed on the body for applying a force against the shaft and pressing the body against the sprocket to lock it in position on the shaft. The sprocket can further have a slot through its central bore wall in which part of the key can reside to rotate the drive member with the shaft.Type: GrantFiled: September 2, 1994Date of Patent: May 21, 1996Assignee: The Laitram CorporationInventors: R. Scott Dailey, Michael R. Straight
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High friction plastic conveyor belts having modular links formed by two integrated plastic materials
Patent number: 5507383Abstract: A plastic conveyor belt system provides high frictional surface contact between the conveyor work surface and the load carried by the conveyor. This is achieved by modular belt links integrally formed of two diverse plastic materials such as a low friction polypropylene and a high friction elastomer thermoplastic rubber. Typically a belt modular link having a planar load support area disposed in its lower forming mold piece with an upper mold piece removed to expose the planar area. Then a further mold piece is mated with the lower mold piece to integrally join by thermal bonding the two diverse materials producing on the planar link load bearing surface area an elastomer strip with an outer frictional load surface for encountering the belt load and resiliently conforming with the load for conveyance in incline and decline conveyor patterns, for example. Special belt patterns such as extending tooth-like appendages on the outer resilient surface layers provide specific advantages of belt operation.Type: GrantFiled: October 24, 1994Date of Patent: April 16, 1996Assignee: The Laitram CorporationInventors: Robert S. Lapyere, John J. Carbone -
Patent number: 5507243Abstract: A connector for attaching equipment to an underwater cable includes a cylindrical race having a plurality of sections pivotably connected by a hinge. The sections can pivot about the hinge to enable the race to be opened and detached from the cable. The hinge includes a plurality of sockets and a hinge pin rotatably received in the sockets. The hinge pin can preferably be retracted from the sockets to unlock the hinge and inserted into the sockets to lock the hinge. A retaining member prevents the hinge pin from falling out of the sockets when the hinge pin is retracted.Type: GrantFiled: February 23, 1994Date of Patent: April 16, 1996Assignee: The Laitram CorporationInventors: Oneil J. Williams, Jr., Andre W. Olivier
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Patent number: 5480295Abstract: A sizing device having a series of sets of sizing dies each composed of first and second die elements for use in extruding articles. Each die element is made of a plate having two opposite faces bounded by a peripheral edge. The edge further defines a notch through the plate. The notch in each die element has an open end extending inwardly to a closed end. The first and second die elements can be moved relative to each other from an open position in which the notches are unoccluded to a closed position in which first and second die elements overlie each other in the direction of extrusion and abut with the notches partly occluded by the abutting complementary die element. When the die is closed, the interior closed ends of the notches of the abutting elements of each die overlap to form a passage through the die that determines the shape of the extrusion. Support structure maintains the series of die sets at spaced apart locations in a vacuum extrusion chamber.Type: GrantFiled: August 30, 1994Date of Patent: January 2, 1996Assignee: The Laitram CorporationInventor: Christopher G. Greve
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Patent number: 5469956Abstract: An endless conveyor belt constructed of rows of pivotally interfitted modules and flight members for supporting product conveyed along inclined paths. The conveyor belt is constructed of a sequence of rows of belt modules joined by pivot rods to form a hinged joint between adjacent rows. Each belt module has a product-conveying surface on one side between a first end and a second end. Hinge elements at the ends of each row of belt modules are interleaved with the hinge elements of an adjacent row and pivotally interconnected by pivot rods through aligned apertures formed in the interleaved hinge elements to form an endless belt having an outer conveying surface and capable of articulating about a drive sprocket. The hinged flight member is preferably tent-shaped and comprises two panels extending outwardly from the conveying surface of the belt. The two panels are hingedly joined along an apical ridge and pivotally attached at two spaced apart belt rows.Type: GrantFiled: January 20, 1995Date of Patent: November 28, 1995Assignee: The Laitram CorporationInventors: Christopher G. Greve, Robert S. Lapeyre
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Patent number: 5418757Abstract: A battery operated system 20 responds to coded acoustic signals 15 for releasing a buoyed housing from an underwater anchor 21 to carry a retrieval line attached to a retrievable underwater object to the water surface. A novel tethering mechanism 26 is provided for attaching the housing to a line 25 tethered to the anchor and for releasing it in response to the coded acoustic signals. The tethering mechanism operates in two diverse modes. Thus the housing is released from its tether line thermally by battery power which melts an expandable wax body in a thermal actuator 36 to move an actuating member 37 through a line release stroke. However, the tether line is attached by a manually actuated latching mechanism 45, 47 provided for retethering the housing at a different location without draining battery power for resetting the latching mechanism.Type: GrantFiled: June 7, 1994Date of Patent: May 23, 1995Assignee: The Laitram CorporationInventors: Brien G. Rau, Andre W. Olivier
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Patent number: 5411111Abstract: A rolling platform ladder includes a frame supporting a stairway and a flat work platform area at the top of the stairway. The frame includes a base portion that has a cantilevered front area for preventing tipping over if the platform is overloaded. A main structural support column is placed at the center portion of the platform and extends down at an angle toward the rear of the base. At least a portion of the platform is positioned in front of the column during use. This configuration enables at least a portion of the platform to be positioned over machines, conveyors and over obstructions. A portion of the base extends in front of the frame so that it can extend under objects elevated slightly above a work surface such as an elevated conveyor or machine.Type: GrantFiled: October 25, 1993Date of Patent: May 2, 1995Assignee: The Laitram CorporationInventor: Christopher Greve
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Patent number: 5410951Abstract: An improved apparatus and method for uniformly cooking thick layers of food product in a saturated steam environment. A foraminous conveyor belt transports a thick layer of food product into a walled cooking chamber open at its ends. The walls trap pure saturated steam to the exclusion of air in the upper region of the chamber. A pressurized source of cooking energy supplies steam through a network of steam pipes situated just below the level of the belt along its carryway through the upper region of the cooking chamber. The pipes, which span the width of the conveyor belt, include small, restricted openings uniformly distributed along the pipes. The openings form steam outlets. The pipes are oriented with the steam outlets facing the conveyor belt. Saturated steam is emitted through the outlets directed through the foraminous conveyor belt at a velocity great enough to penetrate the thick product layer to cook even the innermost product within the thick layer, thereby improving the uniformity of the cook.Type: GrantFiled: November 2, 1993Date of Patent: May 2, 1995Assignee: The Laitram CorporationInventors: Brent A. Ledet, David A. Johnson
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Patent number: 5383141Abstract: Utility of keyboard controlled multipurpose calculating computers with large numbers of modes of operation on data is substantially increased by making available these modes of operation with fewer keys on the keyboard and relating-the keyboard keys to integral keyboard panel carried operating instructions identifying hundreds of accessible operating steps and functions. Typically 12 or 16 key keyboards will initiate considerably more than a hundred different input characters and instructions each clearly identified so that the computer can be used for most of its intended purposes at all times by relatively unskilled operators without reference to instruction manuals. The operating mode requires two successive instantaneous keystrokes for one entry, and the two keystrokes necessary for each of the accessible operating modes and input characters are displayed adjacent the keys for indicating the keys to stroke for each desired entry.Type: GrantFiled: February 11, 1993Date of Patent: January 17, 1995Assignee: The Laitram CorporationInventor: James M. Lapeyre
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Patent number: 5378864Abstract: A general-purpose, pressure-sensitive electrical switch, having a frangible electrically conductive path that is irreversibly broken by an excessive applied pressure differential, The switch includes a pressure-deflectable diaphragm and an interior chamber. The diaphragm forms an interface between the internal chamber and the external environment. As the pressure differential across the diaphragm exceeds a specified level, the diaphragm deflects. The internal chamber can also be sealed with an internal pressure P.sub.1 so that the diaphragm deflects for a specified absolute external pressure P.sub.2. The force of the deflection is transmitted to brittle, inelastic structure within the switch through an intermediate load transmission element. The electrical path, which is along the brittle structure, terminates in a pair of externally-accessible terminals.Type: GrantFiled: June 9, 1993Date of Patent: January 3, 1995Assignee: The Laitram CorporationInventors: Andre W. Olivier, Oneil J. Williams, Jr.
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Patent number: 5377492Abstract: Food product chilling apparatus is afforded herein comprising an elongated water tank and a modular movable belt conveyer unit that carries warm food products through water for chilling. A superstructure and hoist system lifts the conveyor unit out of the water for servicing. Cooling water is recirculated and rechilled in a cooling method that controls the temperature of the efflux water from the cooling tank. The influx chilling water is distributed in a plurality of parallel flow paths incrementally chilling the product at various stations along the conveyor belt path to reduce the average cooling time for the processed products. By standardizing the efflux water temperature at the various stations at a few degrees Fahrenheit above the influx water, a thermally efficient cooling system is provided. Each of the cooling stations is provided with weir height control means to optimize the cooling rate along the length of the conveyor belt.Type: GrantFiled: January 3, 1994Date of Patent: January 3, 1995Assignee: The Laitram CorporationInventors: Thomas W. Robertson, David A. Johnson
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Patent number: 5377819Abstract: The present invention provides an apparatus and method associated with conveyors for moving items where the conveyor has an endless loop belt, a wear strip for supporting the belt and a way of moving the belt. The endless loop belt comprises a succession of individual components, each component having a first end, a second end, an inner surface and an outer surface such that the first end and the second end comprise a pivot.Type: GrantFiled: May 2, 1994Date of Patent: January 3, 1995Assignee: The Laitram CorporationInventors: Paul L. Horton, John J. Carbone