Patents Assigned to Flexible Steel Lacing Company
  • Publication number: 20040134757
    Abstract: In one form, a conveyor belt cleaner is provided that is particularly well-suited for high temperature applications. The cleaner includes a blade mount that has a layback arm mounting the cleaning blade and which can simultaneously deflect horizontally and vertically via changes in the radius of curvature of a lower arcuate portion connected thereto so as to minimize stress on the blade mount. The layback arm extends toward the conveyor belt at an acute layback angle relative to the immediately upstream belt surface. In another aspect, a belt cleaning system is provided including a plurality of resilient blade mounts that absorb the energy of impacts with the cleaning blade so as to allow for controlled release of the impact energy upon bringing the blade quickly back into scraping engagement with the belt. Preferably, two of these resilient mounts are associated with each blade in the belt scraping area and the others at ends of an elongate support laterally spaced from the scraping area.
    Type: Application
    Filed: October 15, 2003
    Publication date: July 15, 2004
    Applicant: Flexible Steel Lacing Company
    Inventors: Brett Edwin DeVries, John H. Winkelman, Mark L. Walde
  • Publication number: 20040112716
    Abstract: A conveyor belt cleaner is provided that is particularly well-suited for high temperature applications. The cleaner includes a blade mount that has a layback arm mounting the cleaning blade and which can simultaneously deflect horizontally and vertically via changes in the radius of curvature of a lower arcuate portion connected thereto so as to minimize stress on the blade mount. The layback arm extends toward the conveyor belt at an acute layback angle relative to the immediately upstream belt surface. In another aspect, a belt cleaning system is provided including a plurality of resilient blade mounts that absorb the energy of impacts with the cleaning blade so as to allow for controlled release of the impact energy upon bringing the blade quickly back into scraping engagement with the belt. Preferably, two of these resilient mounts are associated with each blade in the belt scraping area and the others at ends of an elongate support laterally spaced from the scraping area.
    Type: Application
    Filed: September 10, 2003
    Publication date: June 17, 2004
    Applicant: Flexible Steel Lacing Company
    Inventors: Brett Edwin DeVries, John H. Winkelman, Mark L. Walde
  • Publication number: 20040069598
    Abstract: A conveyor belt cleaner is provided that is particularly well-suited for high temperature applications. The cleaner includes a blade mount that has a layback arm mounting the cleaning blade and which can simultaneously deflect horizontally and vertically via changes in the radius of curvature of a lower arcuate portion connected thereto so as to minimize stress on the blade mount. The layback arm extends toward the conveyor belt at an acute layback angle relative to the immediately upstream belt surface. Preferably, the blade mount is of a shape retentive metal material so that it retains its bias force applied to cleaner blade even in high temperature and high loading conveyor belt applications. To keep the complexity of the blade mount to a minimum, it is preferably of a one-piece, angled spring plate construction including a base integral with the layback arm interconnected thereto by the arcuate portion.
    Type: Application
    Filed: October 15, 2002
    Publication date: April 15, 2004
    Applicant: Flexible Steel Lacing Company
    Inventor: Brett Edwin DeVries
  • Publication number: 20040045136
    Abstract: A rubberized conveyor belt fastener is provided including a plate portion and elastomeric material that extends beyond lateral sides of the plate so that gaps between adjacent plate portions in a conveyor belt splice can be minimized. The plate portions can also include elastomeric material extending over the upper surface thereof to better absorb impact forces therewith. Preferably, the elastomeric material connects a strip of plates together. Both upper and lower plates can be provided with elastomeric material with the lower plates of solid plate fasteners having bolts preassembled thereto deriving the additional benefit of utilizing the elastomeric material to hold the bolt head in its lower plate aperture.
    Type: Application
    Filed: March 4, 2003
    Publication date: March 11, 2004
    Applicant: Flexible Steel Lacing Company
    Inventors: Edward C. Musil, Richard B, Reynolds, John H. Winkelman, Jorge Carlos Pena Basulto, Andre Ribeiro Daltro-Santos
  • Patent number: 6692392
    Abstract: A lagging system for conveyor belt pulleys is provided that allows for significant flexibility in attaching lagging members to the face of the pulleys while also providing improved distribution of the lagging material on the pulley face, and doing this while avoiding the creation of unduly long and circumferentially wide gaps between adjacent lagging members attached on the pulley. The lagging system can include lagging strips having non-linear leading/trailing edges thereof to allow adjacent strips to be attached without the undesired gaps formed therebetween. Preferably, the strips have projecting portions with fitment spaces defined therebetween with the projecting portions being offset on either side of the strip axis so that portions from one strip can be interfit in fitment spaces of an adjacent strip with lagging material or tiles thereon overlapping the lagging material or tiles on the projecting portions of the adjacent strip in the circumferential direction.
    Type: Grant
    Filed: January 2, 2001
    Date of Patent: February 17, 2004
    Assignee: Flexible Steel Lacing Company
    Inventors: Robert K. Finnegan, Peter M. Ramsey, Michael J. Gayford
  • Patent number: 6488144
    Abstract: A fastener for splicing ends of conveyor belts together is provided having a rivet that is pre-inserted thereto to provide speed and ease in installation. The rivet is held in an aperture of the upper plate by an interference fit at the lower end thereof. Preferably, the interference fit is achieved by knurling of the lower end portion of the rivet shaft to create raised interference portions or ridges integral therewith that are sized to be in an interference fit in the upper plate aperture. The remainder of the shaft can be sized to provide clearance between it and the aperture. An applicator machine tool is also provided for automatically securing a strip of the pre-inserted rivet fasteners to a belt end in a fast and efficient manner. The tool uses operating members to first drive pilot nails through the belt lower surface into registry with the rivets, and thereafter the rivets are driven coordinated with the pilot nails that are withdrawn back through the belt.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: December 3, 2002
    Assignee: Flexible Steel Lacing Company
    Inventors: John H. Winkelman, Joseph C. Vogrig, Gary E. Mitas
  • Publication number: 20020046929
    Abstract: A lagging system for conveyor belt pulleys is provided that allows for significant flexibility in attaching lagging members to the face of the pulleys while also providing improved distribution of the lagging material on the pulley face, and doing this while avoiding the creation of unduly long and circumferentially wide gaps between adjacent lagging members attached on the pulley. The lagging system can include lagging strips having a backing plate with rubber material bonded thereto, and which can carry lagging material such as ceramic tiles embedded therein. These strips include non-linear leading/trailing edges thereof to allow adjacent strips to be attached without the undesired gaps formed therebetweeen.
    Type: Application
    Filed: January 2, 2001
    Publication date: April 25, 2002
    Applicant: Flexible Steel Lacing Company
    Inventors: Robert K. Finnegan, Peter M. Ramsey, Michael J. Gayford
  • Patent number: 6374999
    Abstract: A fastener for splicing ends of conveyor belts together is provided having a rivet that is pre-inserted thereto to provide speed and ease in installation. The rivet is held in an aperture of the upper plate by an interference fit at the lower end thereof. Preferably, the interference fit is achieved by knurling of the lower end portion of the rivet shaft to create raised interference portions or ridges integral therewith that are sized to be in an interference fit in the upper plate aperture. The remainder of the shaft can be sized to provide clearance between it and the aperture. An applicator machine tool is also provided for automatically securing a strip of the pre-inserted rivet fasteners to a belt end in a fast and efficient manner. The tool uses operating members to first drive pilot nails through the belt lower surface into registry with the rivets, and thereafter the rivets are driven coordinated with the pilot nails that are withdrawn back through the belt.
    Type: Grant
    Filed: November 9, 1999
    Date of Patent: April 23, 2002
    Assignee: Flexible Steel Lacing Company
    Inventors: John H. Winkelman, Joseph C. Vogrig, Gary E. Mitas
  • Publication number: 20020040841
    Abstract: A fastener for splicing ends of conveyor belts together is provided having a rivet that is pre-inserted thereto to provide speed and ease in installation. The rivet is held in an aperture of the upper plate by an interference fit at the lower end thereof. Preferably, the interference fit is achieved by knurling of the lower end portion of the rivet shaft to create raised interference portions or ridges integral therewith that are sized to be in an interference fit in the upper plate aperture. The remainder of the shaft can be sized to provide clearance between it and the aperture. An applicator machine tool is also provided for automatically securing a strip of the pre-inserted rivet fasteners to a belt end in a fast and efficient manner. The tool uses operating members to first drive pilot nails through the belt lower surface into registry with the rivets, and thereafter the rivets are driven coordinated with the pilot nails that are withdrawn back through the belt.
    Type: Application
    Filed: December 6, 2001
    Publication date: April 11, 2002
    Applicant: Flexible Steel Lacing Company
    Inventors: John H. Winkelman, Joseph C. Vogrig, Gary E. Mitas
  • Patent number: 6345925
    Abstract: A fastener is provided for splicing end portions of conveyor belts together with the fastener having a bolt with a pilot or lead-in portion that provides improved threading of a nut thereto and makes installation of the fasteners on the belt ends faster and easier. The pilot of the bolt is longer than the beveled conical tip portion of prior bolts so that nuts received thereon will stay substantially aligned with the axis of the shank. In this manner, threading of the nut to the bolt shank is easier in terms of avoiding cross-threading problems. Also, as the pilot portion of the shank is free of any threads, the installation of the bolt onto the belt ends can be done more quickly with less resistance during the insertion process.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: February 12, 2002
    Assignee: Flexible Steel Lacing Company
    Inventor: John Coleman
  • Patent number: 6279727
    Abstract: A conveyor belt cleaning apparatus with an elastomeric biasing means. Some given number of the apparatus are seated on a horizontal mount which spans the width of a conveyor belt. Each unit is hollow. This void is loaded with filler material. A metallic blade seat is integral with the elastomeric material and configured to accept a blade.
    Type: Grant
    Filed: June 21, 2000
    Date of Patent: August 28, 2001
    Assignee: Flexible Steel Lacing Company
    Inventors: Jon Robert Waalkes, Dennis L. Gleason
  • Patent number: 6216851
    Abstract: A strip of riveted belt fasteners is provided manufactured in a punch press or the like to form multiple belt fasteners at a time with the fasteners each being attached to an end of a conveyor belt by way of a single rivet extending through single apertures in upper and lower plates of each of the fasteners. The small fasteners herein are provided with sufficient strength to be used in abusive hay baler applications while the fasteners must travel about small pulleys, e.g. 3″ to 3.5″ inches in diameter. Further, the installation of this rivet belt fastener in the field is about as simple as driving a nail requiring a portable applicator tool and a hammer. That is, the fasteners can be riveted attached to the belt end by way of a low cost applicator tool that includes recessed hardened anvil surfaces integrally formed in the body thereof to upset initially rivets which are driven through the belt with a separably attached pilot nail.
    Type: Grant
    Filed: October 22, 1998
    Date of Patent: April 17, 2001
    Assignee: Flexible Steel Lacing Company
    Inventors: Gary Edward Mitas, William Robert Wawczak, Thomas Stanley Wujek
  • Patent number: 6168544
    Abstract: A lagging material for application to the surface of a pulley, said material being integrally formed in elongate strip form and having an upper surface including a plurality of discrete nodules extending therefrom and arranged regularly or randomly according to a predetermined pattern and including a plurality of longitudinally spaced apart elongate and transversely extending cutting sipes laterally defined by the nodules so as to form a partial or complete boundary wall of each sipe; wherein said nodules are arranged over the upper surface of said material so as to allow cutting of a predetermined size of lagging from a larger sheet or strip of said lagging by effecting cuts along or across said cutting sipes and between said nodules.
    Type: Grant
    Filed: April 17, 1998
    Date of Patent: January 2, 2001
    Assignee: Flexible Steel Lacing Company
    Inventors: Edwin Arthur Barnes, Anthony John Lobb
  • Patent number: 6053308
    Abstract: A hinged fastener for splicing transverse ends of conveyor belts together with the belt fastener having teeth that are bent from one of the fastener plates for piercing and sinking into the belt to increase the holding power of the fastener. In the preferred form, the fastener is attached to the belt end with two rivets with the teeth being adjacent the rivets to provide a small, low cost, high performance fastener. The teeth are formed by bending them down from the outer edge of the plate and about a bend line parallel to the inner edge of the plate so that the teeth face the belt end to keep the teeth from being pulled through the belt material. The location of the teeth adjacent the rivets maximizes the depth of penetration of the teeth into the belt for improved fastener holding power and minimizes the likelihood that the teeth will be bent upward and lose holding power when the belt is highly tensioned.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: April 25, 2000
    Assignee: Flexible Steel Lacing Company
    Inventors: Joseph C. Vogrig, John H. Winkelman, Edward C. Musil
  • Patent number: 5852877
    Abstract: A belt skiving apparatus and method in which a free-standing blade-carrying carriage is employed which does not require a guiding base. The carriage has a pair of rollers defining a nip into which a belt end to be skived is passed. The rollers press together about the belt end to securely grip the belt. One of the rollers is toothed to provide a non-slip engagement with the surface of the belt and at least one of the rollers is driven, preferably manually, through a crank arm. Rotation of the rollers advances the carriage relative to the belt to advance the carriage across the width of the belt. As the carriage is advanced, the belt is passed through the rollers and through a cutting blade disposed adjacent the rollers. As the carriage is advanced along the width of the belt, the blade slices a thin strip of the upper portion of the belt adjacent its upper face from the remainder of the belt. The thin strip that is removed is the portion of the belt that was punctured by the teeth of the driving roller.
    Type: Grant
    Filed: July 23, 1996
    Date of Patent: December 29, 1998
    Assignee: Flexible Steel Lacing Company
    Inventors: David A. Lotarski, Joseph C. Vogrig
  • Patent number: 5774951
    Abstract: A clamping apparatus for adjustably clamping a flexible skirt to a conveyor belt skirt plate comprises a locking member adapted to be driven along a stationary cam member in the form of a pin to exert a force on a clamp plate that has one side abutting the flexible skirt and forcing the skirt against the conveyor belt skirt plate. The locking member has a closed, elongated slot to retain the locking member on the cam pin. The locking member may be pivoted outwardly on the pin to project normal to the clamping plate, which has an aligned bore allowing removal of the clamp plate for installation of a flexible skirt. The cam pin is carried on a clamping body that has a narrow waist that is slidably mounted between a pair of opposed retaining flanges on the channel to adjust the position of the clamping plate relative to the conveyor skirt plate.
    Type: Grant
    Filed: June 17, 1996
    Date of Patent: July 7, 1998
    Assignee: Flexible Steel Lacing Company
    Inventors: Brian Close, Bruce Hart
  • Patent number: 5771586
    Abstract: A belt skiving apparatus is provided having a free-standing blade-carrying carriage mounting a pair of rollers defining a nip into which a belt end to be skived is passed. The rollers press together about the belt end to securely grip the belt, with at least one of the rollers being driven, preferably manually, through a crank arm. Rotation of the rollers advances the carriage relative to the belt to advance the carriage across the width of the belt. As the carriage is advanced, the belt is passed through the rollers and through a cutting blade disposed adjacent the rollers, with the blade slicing a thin strip of the upper portion of the belt adjacent its upper face from the remainder of the belt. The rollers may be driven by a ratchet arm to move the carriage along the belt end. Preferably, two pairs of rollers are employed on the carriage, one forward and one rearward of the blade to cut the uncut portion remaining at the trailing side of the belt after the belt passes through the forward roller pair.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: June 30, 1998
    Assignee: Flexible Steel Lacing Company
    Inventors: David A. Lotarski, Joseph C. Vogrig
  • Patent number: 5725269
    Abstract: A portable belt clamping and pulling apparatus is provided to grip and pull belt ends together for splicing belt ends of a conveyor belt. A pair of belt ends are clamped between respective pairs of I-beams, the clamped belt ends are pulled together by a come-along mechanism, and the free ends of belt between the I-beams are maintained held together in a tension-free environment to allow fastening together of the belt ends. The preferred clamping jaws are in the form of at least one clamping lever pivotally mounted on a central frame having a central opening through which the I-beams are inserted. The clamping lever is connected to a pulling device that pivots the clamping lever to cause the clamping members to tightly grip a belt end between the I-beams. The clamping jaws include respective pre-tightening screws for clamping the I-beams to the belt prior to the initiation of pulling by the chains so as to eliminate slippage of the belt from between the I-beams during the initial pulling.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: March 10, 1998
    Assignee: Flexible Steel Lacing Company
    Inventors: William James Daniels, Gary Edward Mitas
  • Patent number: D482508
    Type: Grant
    Filed: August 12, 2002
    Date of Patent: November 18, 2003
    Assignee: Flexible Steel Lacing Company
    Inventor: Brett Edwin DeVries
  • Patent number: D423749
    Type: Grant
    Filed: September 14, 1998
    Date of Patent: April 25, 2000
    Assignee: Flexible Steel Lacing Company
    Inventors: Edward C. Musil, John H. Winkelman, Joseph C. Vogrig