With Screw Adjusting Means Patents (Class 198/816)
  • Patent number: 10427883
    Abstract: Disclosed is a conveyor system and method for advancing an item relative to a transport axis. The conveyor system includes a conveyor belt and a modular drive assembly having at least one drive module and at least one take-up module. Each drive module and each take-up module has a housing and a pulley assembly positioned within the housing. The respective positions of the housings of the at least one drive module and the at least one take-up module relative to the transport axis are selectively adjustable to modify the conveyor movement pathway. Moreover, the drive module can also include a drive pulley removal apparatus that is detachably secured within the housing for selective removal and replacement of a drive pulley.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: October 1, 2019
    Assignee: FEDEX CORPORATION
    Inventors: Randy Dixon, C. Todd McDaniel
  • Patent number: 10018498
    Abstract: A set of scales having a rack on which at least one, preferably a plurality of weighing tables is/are provided which has/have in each case one frame. The frame of at least one weighing table is provided so as to be at least partially pivotable and/or rotatable in relation to the rack such that the frame is convertible from a use position to a cleaning position and vice-versa.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: July 10, 2018
    Assignee: GEA FOOD SOLUTIONS GERMANY GMBH
    Inventor: Thomas Gahler
  • Patent number: 9789573
    Abstract: A cutting table is provided for supporting flat metal plate to be processed, wherein the support table includes at least one module including: at least two longitudinal end plate members which extend along a longitudinal X axis and are spaced apart a transverse distance Y; and a plurality of spaced apart flat bar members (bar members) which are supported by the end plate members and which span distance Y between the end plate members; wherein the side end plate members and bar members of the module are oriented so that the plane of the end plate members and the bar members all have, in use, a vertical orientation; wherein furthermore in use, the bar members support a sacrificial interlocking grid assembly configured to support the plate to be machined.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: October 17, 2017
    Assignee: EIGEN SYSTEMS LIMITED
    Inventor: Murray Houlton Forlong
  • Patent number: 9701480
    Abstract: A tensioning device for a conveyor belt (10) used for moving semi-finished or finished products along the lines of production or storage or the like, includes mechanical elements integrated in the structure of a frame (12) of the conveyor belt, provided with a roto-translation movement with manual actuation and co-operating with thrust elements with translation movement for adjusting the tension of a moving mat (16) via a change in the center distance between a reversing roller (20) and a motor roller (18) which subtend the moving mat and are transversely arranged at opposite ends of two opposing and parallel lateral shoulders (14) of the frame (12) of the conveyor belt.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: July 11, 2017
    Assignee: CRIZAF S.R.L.
    Inventor: Luca Cribiu'
  • Patent number: 9371189
    Abstract: A belt tightening assembly for conveyor systems includes an elongated outer tube and an inner tube sized to be complementarily received in the outer tube. The inner tube retractably extends out of the outer tube to varying lengths. A bearing housing extends from a long end of the inner tube and is integrated with the inner tube such that the inner tube and bearing housing do not separate from each other during normal operation. A spherical bearing is inserted into the bearing housing, the belt tightener is secured to a roller of a conveyor system, and the assembly is secured to a side of a conveyor. A separate pillow block is not used, eliminating a number of collection points for contamination and lowering costs. Also, not requiring a pillow block to be fastened to the inner tube reduces shear forces that result from imprecise fastening.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: June 21, 2016
    Assignee: Bryant Products, Inc.
    Inventors: Todd A. Brennecke, Daniel M. Genz, David A. Roessler, Jeffrey C. Steiner
  • Patent number: 9205993
    Abstract: A take-up drum carriage assembly may include a tensioning take-up drum, a carriage for supporting the tensioning take-up drum, a plurality of pivot arms for pivotably supporting the carriage relative to a vehicle wash conveyor frame, and for each of the pivot arms, at least one interconnector for pivotably interconnecting the pivot arm and the carriage. Each interconnector may include a resilient support that supports at least part of the weight of the carriage. The interconnector may fix the resilient support relative to one of the pivot arm and the carriage. The other of the pivot arm and the carriage may rock relative to, and against, the resilient support upon longitudinal movement of the carriage relative to the vehicle wash conveyor frame during tensioning. The pivot arms may be swing arms.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: December 8, 2015
    Assignee: Ryko Canada, Inc.
    Inventor: Ereth McKnight-MacNeil
  • Patent number: 8967373
    Abstract: A conveyor, comprising; two opposite rolls (1, 2), a frame that comprises two opposite beams (3, 4) that carry the rolls (1, 2) and extend in their longitudinal direction between the rolls (1, 2), an endless metal belt (5) extending in a path around and carried by the two rolls (1, 2), and a support element (11) that extends between and is connected to each of the two beams (3, 4), wherein at least one of the rolls (1, 2) is displaceable in the longitudinal direction of the beams (3, 4) in order to enable tightening or loosing of the belt (5), and wherein there is provided a jack (10) that is connected to and acts on said roll (1) for said displacement thereof. The jack (10) is displaceable between at least two operative positions in the longitudinal direction of the beams (3, 4).
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: March 3, 2015
    Assignee: Sandvik Intellectual Property AB
    Inventor: Erikkson Hakan Nils
  • Patent number: 8910778
    Abstract: A tracking and tensioning device for a belt conveyor that provides a tracking assembly that is mounted to the conveyor frame. The tracking assembly is capable of sliding along the length of the conveyor frame. An idler roller is mounted to the tracking assembly that is held under constant tension by an adjustable tensioner. The adjustable tensioner provides take-up tensioning at the portion of the belt with the lowest operating tension.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: December 16, 2014
    Assignee: KSi Conveyors, Inc.
    Inventors: Cesar F Francisco, Steven R Walder
  • Patent number: 8770390
    Abstract: An improved conveyor belt assembly is provided with telescoping housing sections and a tension system for extending and retracting the sections relative to one another to maintain a selected tension on the conveyor belt. The assembly also has a lower end with a stepped profile matching the stepped profile of the cleated belt, so as to pick up and discharge fallen seeds or material and eliminate gaps where fallen seeds and material may collect. One or more scrapers are provided adjacent the lower track of the belt to push stray seeds and material off the lower track for pick up by the cleated belt at the lower end of the assembly.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: July 8, 2014
    Assignee: Woodhaven Capital Corp.
    Inventors: Juan Neufeld, Samuel John Plett, Bernie Thiessen
  • Patent number: 8573388
    Abstract: A conveyor belt tensioning arrangement for an agricultural harvesting header (102), the agricultural harvesting header (102) with the conveyor belt tensioning arrangement, and an agricultural combine having the agricultural harvesting header (102) are described herein, the arrangement comprising a conveyor belt roller (208) supported on a roller carriage (228), the conveyor belt roller (208) being spring-loaded to maintain tension in the conveyor belt (108, 112), the conveyor belt roller (208) also being supported to pivot about an axis generally perpendicular to the longitudinal extent of the conveyor belt roller (208).
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: November 5, 2013
    Assignee: Deere & Company
    Inventors: Daniel S. Hoffman, Cory Minnick, Krishna S. Potiuri, Christopher Krueger, Amy C. Berg
  • Patent number: 8458874
    Abstract: An apparatus is disclosed for applying tags with attached elastic anchor bands onto the tops of objects such as bottles in a high speed packaging application. The apparatus includes an infeed assembly for feeding a web, a conveyor assembly that receives a web and conveys it along a path in an upstream direction, a rotating selector wheel, a placement assembly, a pair of rotating jaw assemblies, a vacuum cup of the selector wheel, and stretched elastic bands over the tops of respective bottles being conveyed along a path below the placing assembly. The elastic bands then snap onto the tops of their respective bottles to secure the tags to the bottles.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: June 11, 2013
    Assignee: Graphic Packaging International, Inc.
    Inventor: Kelly Ziegler
  • Patent number: 7992706
    Abstract: A tensioning device configured for use in a conveyor system as an idler roller over which a belt is wound under tension includes a housing, an arm mounted in the housing for linear movement in and out of the housing, a roller mechanism mounted at a distal end of the arm including a roller configured for rolling contact with a belt of a conveyor system, and an actuator for extending and retracting the arm from the housing. The actuator includes a worm shaft and a lead screw. A pinion of the worm shaft engages a gear affixed at one end of the lead screw. The tensioning device includes a coupling by which rotation of the lead screw results in outward movement of the arm when the worm shaft is rotated in a first direction, and which results in inward movement of the arm when the worm shaft is rotated in the opposite direction. Engagement of the worm shaft to the gear is self-locking.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: August 9, 2011
    Assignee: Siemens Industry, Inc.
    Inventor: Bryan J. Stone
  • Patent number: 7802674
    Abstract: The present invention is a system for applying tension to vertical conveyor belts. A combination of force stabilizing devices, force adjusting devices, movable plates and pivoting levers allows adjustment of the tension applied to the vertical conveyor belt. The levered tensioning allows the vertical conveyor belt to positioned in closed proximity with another conveyor or object.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: September 28, 2010
    Assignee: Transnorm System, Inc.
    Inventors: Patrick M. McGuire, Donald K. Wier
  • Publication number: 20100116628
    Abstract: A tensioning device configured for use in a conveyor system as an idler roller over which a belt is wound under tension includes a housing, an arm mounted in the housing for linear movement in and out of the housing, a roller mechanism mounted at a distal end of the arm including a roller configured for rolling contact with a belt of a conveyor system, and an actuator for extending and retracting the arm from the housing. The actuator includes a worm shaft and a lead screw. A pinion of the worm shaft engages a gear affixed at one end of the lead screw. The tensioning device includes a coupling by which rotation of the lead screw results in outward movement of the arm when the worm shaft is rotated in a first direction, and which results in inward movement of the arm when the worm shaft is rotated in the opposite direction. Engagement of the worm shaft to the gear is self-locking.
    Type: Application
    Filed: November 10, 2009
    Publication date: May 13, 2010
    Inventor: Bryan J. Stone
  • Patent number: 7556069
    Abstract: An adjusting device for the conveying belt of a planer includes a fundamental plate assembled on the base of a planer. The fundamental plate has its rear end disposed with a rear roller unit connected with the base of the planer and composed of two adjusting plates and a rear roller. The two adjusting plates are respectively bored with longitudinal insert slots preset in number to enable the adjusting plates to be slidably assembled on the fundamental plate. Each adjusting plate has its front end extending outward vertically and forming a positioning wall pivotally fixed thereon with a positioning member and movably fastened on the base of the planer. The adjusting device for the conveying belt of this invention is simple in structure and easy to be assembled, lowering processing and assembling cost.
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: July 7, 2009
    Inventor: Bor-Yann Chuang
  • Publication number: 20090107773
    Abstract: This invention relates to a front transport for a check stand which has a combined front roller and motor and an idler roller at the rear end with a conveyor belt going around both rollers. The front transport has a mechanism for adjusting the tension and tracking of the conveyor belt which consists of two bolts on the front end of the front transport near each side for adjusting a shuttle on each in which a motor mount is secured. Each shuttle can be moved back and forth by turning the adjustment bolt. This front transport can have varying lengths as it has break points in the metal frame for reducing the size of the conveyor assembly.
    Type: Application
    Filed: October 25, 2007
    Publication date: April 30, 2009
    Applicant: ROYSTON, LLC
    Inventors: Michael S. Notheis, Earl Seekins
  • Publication number: 20080223696
    Abstract: A linear band guide device for supporting and defining a path for a band includes an elongate band support element, a first band end support at a first end of said elongate band support element, a second band end support at a second end of said elongate band support element. The elongate band support element has a substantially flat top surface capable of functioning as a slide bed for the band.
    Type: Application
    Filed: August 17, 2006
    Publication date: September 18, 2008
    Inventor: Niels Bugge
  • Patent number: 7395919
    Abstract: An enclosed belt conveyor having a high strength take-up section that maintains proper belt alignment with the use of just two take-up screws, while still allowing for the take up section housing to be made of lighter weight, less expensive materials. The take-up section of the present invention can be installed at a head section or tail section of an enclosed belt conveyor. The take-up section of the present invention generally includes two support arms slidably mounted in guides that maintain the support arms in a straight orientation and two take-up screws that adjust the support arms within the guides while maintaining proper alignment of the take-up section without the necessity of separate leveling screws.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: July 8, 2008
    Inventor: William A. Schlagel
  • Patent number: 7383944
    Abstract: A conveyor assembly has a continuous conveyor belt driven between a pair of spaced side frame members by a center drive assembly having a pair of spaced side plates connected to the side frame members. A drive roller arrangement is driven by a drive motor arrangement coupled to the drive roller arrangement to move the conveyor belt. A freely rotatable guide roller arrangement is slidably mounted between the side frame members and the side plates between an operating position in which the conveyor belt passes around the guide roller assembly before engaging the drive roller arrangement, and a cleaning position in which the guide roller arrangement is slidably removable away from the side frame members and the side plates and out of engagement with the conveyor belt.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: June 10, 2008
    Assignee: Dorner Mfg. Corp.
    Inventors: Scott M. Hall, Craig J. Bude
  • Patent number: 7267223
    Abstract: A conveyor, primarily but not exclusively for use in the food industry, in which a conveyor belt (19) is supported on a belt platform (11) for movement relative thereto, and the belt platform (11) is formed as a unitary component from a single sheet metal blank. Preferably the conveyor includes a support leg structure (12, 13) and that supporting leg structure is also formed as a unitary component from a single metal blank. Most preferably the belt platform and the supporting leg structure are formed as a unitary component from a single metal blank.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: September 11, 2007
    Assignee: Innoveytion Limited
    Inventor: Simon Spoors
  • Patent number: 7243782
    Abstract: An enclosed belt conveyor having a high strength take-up section that maintains proper belt alignment with the use of just two take-up screws, while still allowing for the take up section housing to be made of lighter weight, less expensive materials. The take-up section of the present invention can be installed at a head section or tail section of an enclosed belt conveyor. The take-up section of the present invention generally includes two support arms slidably mounted in guides that maintain the support arms in a straight orientation and two take-up screws that adjust the support arms within the guides while maintaining proper alignment of the take-up section without the necessity of separate leveling screws.
    Type: Grant
    Filed: January 31, 2005
    Date of Patent: July 17, 2007
    Assignee: Schlagel, Inc.
    Inventor: William A. Schlagel
  • Patent number: 7222728
    Abstract: The present invention is related to an adjustable finger guard or shield for a conveyor. The housing's slide can include the combination of a plate, one or more connectors and a rotable bearing's housing. Moving the slide from a first direction to a second directions alters the position of the shaft of the conveying drum driving the conveyor belt.
    Type: Grant
    Filed: January 3, 2005
    Date of Patent: May 29, 2007
    Assignee: Transnorm System Inc.
    Inventors: Donald K. Wier, Stephen D. Duncan
  • Patent number: 6848570
    Abstract: An unloading end frame of a die-loading belt conveyor includes elements about which the belt winds at least partially during motion thereof. The elements comprise a plurality of small-diameter rollers (3) arranged consecutively to one another, each of which is supported at ends thereof by support elements (4). The small-diameter rollers (3) are arranged consecutively to one another is such a way that axes thereof form a broken line.
    Type: Grant
    Filed: July 15, 2002
    Date of Patent: February 1, 2005
    Assignee: R.P. S.r.l.
    Inventor: Umberto Giovanardi
  • Patent number: 6601692
    Abstract: A device is provided for cleaning an endless conveyor. The device includes an endless brush belt engageable with the endless conveyor. A tension mechanism is provided for placing a tension on the endless brush belt. A clutch mechanism is operatively connected to the tension mechanism. The clutch mechanism prevents the placement of additional tension on the endless brush belt in response to tension exceeding a predetermined maximum tension.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: August 5, 2003
    Assignee: Schaefer Brush Manufacturing
    Inventors: Harold G. Schaefer, Anthony A. Brooks
  • Patent number: 6478161
    Abstract: An eddy current separator apparatus for separating non-ferrous metals from other materials. The apparatus includes a support frame and a table cantileverly suspended from the frame. An expansion and contraction mechanism is incorporated that is adapted to accept a continuous conveyor belt thereabout. The expansion and contraction mechanism is capable of being configured between an operating configuration and maintenance configuration. A continuous conveyor belt is constructed to be able to be looped about the expansion and contraction mechanism and the table such that the conveyor belt is drawn tight in the operating configuration and slackened in the maintenance configuration. In this manner, the continuous conveyor belt is easily removable from, and installable onto the table in the maintenance configuration.
    Type: Grant
    Filed: June 19, 2001
    Date of Patent: November 12, 2002
    Inventor: Billy R. Howell
  • Patent number: 6371283
    Abstract: A modular sanitary conveyor has a longitudinal conveyor bed unit slidably received and supported on a support stand and a drive motor unit slidably received and supported on the side of the bed unit. The bed unit has longitudinal side panels on laterally opposed sides with longitudinal slots extending inwardly from the forward and tail ends. A drive roller is removably and rotatably mounted in removable unitary drive roller bearings mounted in or adjacent to the slots at the forward end of the side panels and an end roller is removably mounted in unitary end roller bearings slidably mounted in or adjacent to the slots at their tail end. One or more idler rollers are removably and rotatably supported at each end between the side panels.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: April 16, 2002
    Inventor: Doug Manchester
  • Patent number: 6354203
    Abstract: A belt drive for a machine for processing flat printing materials includes an endless belt revolving during operation, a roller about which the belt is partially looped, a frame with respect to which the roller is adjustable between a working position, wherein the roller keeps the belt tensioned, and a position moved away from the working position, wherein the belt is untensioned, and a spring device for biasing the roller into the working position thereof. Also included are a double crank by which the roller is articulated with the frame, and a stop which, due to a change in position of the double crank from a position corresponding to the working position of the roller into a position corresponding to the moved-away position of the roller, is carried out to a given extent beyond a dead-center position of the double crank, prevents a change in position beyond the given extent; and a machine for processing flat printing materials, which includes the belt drive.
    Type: Grant
    Filed: March 7, 2001
    Date of Patent: March 12, 2002
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Dieter B├Ącker, Ralf Weiser, Roland Hirth, Richard Mack
  • Patent number: 6298981
    Abstract: A conveyor construction includes a frame, a drive section stationarily mounted to the frame, and a tensioning section mounted for longitudinal movement relative to the frame. The drive and tensioning sections each include a spindle, and a belt is engaged with the spindles. The frame defines an upper support surface disposed below the upper run of the belt, and mating engagement structure is provided on the belt and the upper support surface for preventing lateral movement of the belt relative to the upper support surface. The drive and tensioning sections include spaced side members, each of which defines an inwardly opening cavity for receiving a bearing assembly for rotatably supporting the spindle. The bearing-receiving cavity faces the spindle, and each side member defines outer wall structure which engages and supports the belt outwardly of the spindle.
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: October 9, 2001
    Assignee: Dorner Mfg. Corp.
    Inventors: Michael A. Hosch, Scott M. Hall, Daniel E. Ertel, Kenneth A. Hansen
  • Publication number: 20010023812
    Abstract: A plurality of flat timing belts each has parallel spaced teeth, and opposite end portions of each belt are attached to a carriage by corresponding relatively adjustable clamping blocks and plates. The belts extend around a common drive sprocket on a drive shaft connected to a drive having a reversible electric motor. The belts also extend around corresponding tail sprockets on a tail shaft, and adjacent tail sprockets are free to rotate relative to each other. A clamping block for each belt is adjusted to obtain the same tension in all belts so that each belt may be operated at its full rated capacity. The belt drive system may be used for transferring or shuttling a plurality of tool trays laterally with respect to a working station at a conveyor assembly line and storage stations on opposite sides of the working station.
    Type: Application
    Filed: April 27, 2001
    Publication date: September 27, 2001
    Applicant: Force Control Industries, Inc.
    Inventor: Reginald D. Kelley
  • Patent number: 6279733
    Abstract: A tensioning and tracking system with specific useful features for adjusting a conveyor belt is disclosed. Generally, the tensioning and tracking systems include a pair of plate members attached together and defining a channel and an elongated opening. Mounted within the channel is a slide plate having a distal end. Also, connected to one of the side plate members is a rotating member for reciprocally advancing the distal end of the slide plate into the elongated opening. The position of the slide plate within the elongated opening is secured by a locking screw connected to one of the plate members.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: August 28, 2001
    Inventor: Frank A. Eltvedt
  • Patent number: 6276519
    Abstract: A rodless cylinder rope tensioning apparatus maintains tension in an endless rope operable for threading a web in a paper-making apparatus and includes at least one rodless cylinder having at least one yoke sheave attached to the internal piston in the rodless cylinder. The rope is initially threaded around an entry guide roller and the yoke sheave and spliced, and then stretched by operation of the rodless cylinder, which selectively causes the piston to relocate the yoke sheave along the length of the rodless cylinder and apply a selected degree of tension to the rope. In a preferred embodiment a pair of entry guide rollers is provided in a frame containing a pair of parallel rodless cylinders, each having a yoke sheave independently movable along the rodless cylinder by operation of the rodless cylinder piston, to effect tensioning of a pair of ropes in the paper-making apparatus.
    Type: Grant
    Filed: October 5, 1998
    Date of Patent: August 21, 2001
    Inventors: Michael E. Craft, Douglas M. Craft, Paul E. Mayfield
  • Patent number: 6274846
    Abstract: During an initial setting period, if there is a tendency for a belt to move sideways due to tolerance when components are assembled in the initial setting, inclination in the axial direction of a driven roller can be changed after the components are assembled, to adjust degree of tension at both end portions in the transverse direction of the belt wound at a driven roller. Accordingly, the tendency for the belt to move sideways caused during assembly of the components can be corrected. Further, when there are changes over time (reduced elasticity of the belt, changes in the positioned state of rollers, or the like), sideways movement may occur during operation. However, in these cases, since a tapered auxiliary roller is attached at each of end portions in the axial direction of the rollers so as to be able to rotate relatively to the respective roller that is the base body thereof, when the belt moves sideways onto the auxiliary rollers the belt can be promptly returned to its original position.
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: August 14, 2001
    Assignees: Fuji Photo Film Co., Ltd., Fuji Photo Optical Co., Ltd.
    Inventors: Tsukasa Ono, Masaaki Tomimizu
  • Patent number: 6267228
    Abstract: A device to permit manual adjustment of the track or path of a conveyor belt (1) while providing constant, predetermined belt tension. A removable conveyor roller (23) is supported by a pivotable yoke (11), which is pivoted about a shaft (12) from a nonoperational position of no belt tension, at which point cleaning and regular maintenance take place, to the operating position of full belt tension. Conveyor belt tension is provided by at least one spring (10), the spring force increasing with deflection during the pivoting motion of the roller yoke (11) into the normal operating position. The spring force resists the motion of a pivoting plate (8) to slide in a plane relative to the fixed conveyor bed (18) along an adjustable axis. Force is transmitted through the pivoting shaft (12) to the yoke (11) which creates tension in the conveyor belt (1) without exceeding the load limitations of the conveyor belt (1) or the roller shaft (9) bearings.
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: July 31, 2001
    Inventors: Lawrence O. Cadwell, Kevin A. Nesdahl
  • Publication number: 20010000595
    Abstract: A tensioning and tracking system with specific useful features for adjusting a conveyor belt is disclosed. Generally, the tensioning and tracking systems include a pair of plate members attached together and defining a channel and an elongated opening. Mounted within the channel is a slide plate having a distal end. Also, connected to one of the side plate members is a rotating member for reciprocally advancing the distal end of the slide plate into the elongated opening. The position of the slide plate within the elongated opening is secured by a locking screw connected to one of the plate members.
    Type: Application
    Filed: December 19, 2000
    Publication date: May 3, 2001
    Inventor: Frank A. Eltvedt
  • Patent number: 6209715
    Abstract: A tensioning and tracking system with specific useful features for adjusting a conveyor belt is disclosed. Generally, the tensioning and tracking systems include a pair of plate members attached together and defining a channel and an elongated opening. Mounted within the channel is a slide plate having a distal end. Also, connected to one of the side plate members is a rotating member for reciprocally advancing the distal end of the slide plate into the elongated opening. The position of the slide plate within the elongated opening is secured by a locking screw connected to one of the plate members.
    Type: Grant
    Filed: January 22, 1999
    Date of Patent: April 3, 2001
    Inventor: Frank A. Eltvedt
  • Patent number: 6170645
    Abstract: A conveyor system comprises a pulley provided with a bearing. The bearing includes an outer bearing race with an outer surface. The conveyor system further comprises a frame with a side plate having a top end defining a first cut-out. At least a portion of the outer surface of the outer bearing race is engaged with the first cut-out. The side plate also defines a second cut-out providing an opening into the first cut-out. The second cut-out facilitates insertion of the bearing into the first cut-out.
    Type: Grant
    Filed: April 23, 1998
    Date of Patent: January 9, 2001
    Inventor: Charles L. Mitchell
  • Patent number: 6161683
    Abstract: A quick release assembly for a check-out conveyor assembly is disclosed. The check-out conveyor assembly includes a frame member having a pair of opposed side rails that receive a series of guides including an idler guide and a drive guide. A conveyor belt encircles the series of guides and is rotatable within the side rails. A quick release assembly is mounted on each of the side rails and is moveable between a locked position and an unlocked position. When the quick release assembly is moved to the locked position the idler guide is moved from a disengaged position to an engaged position. When the idler guide is at the engaged position the drive guide is able to rotate the conveyor belt. The quick release assembly comprises a take-up arm rotatably secured to a first end of a push bar and a release handle rotatably secured to a second end of the push bar. The release handle is pivotally fixed to the side rail.
    Type: Grant
    Filed: December 10, 1998
    Date of Patent: December 19, 2000
    Assignee: Borroughs Corporation
    Inventor: Andy B. Wallis
  • Patent number: 6112884
    Abstract: A web-product delivery system includes a top belt system with at least one top belt assembly supported and movably adjustable on a carriage. The top belt assembly includes a front assembly and a rear assembly. Both the front assembly and rear assembly include at least one idler roller assembly, and a bracket slidably attached to the carriage to allow the top belt assembly to be positioned and adjusted along a product path while product is moving along the product path. The idler roller assembly may include a roller rotatably attached to an arm, the arm pivotably attached to a bracket, a pivot shaft attached to the bracket and slidably receiving a load-bias threaded adjusting rod. The adjusting rod is screwably attached to the arm to allow the arm to rotate about the bracket through a vertical plane when the adjusting rod is turned. The web-product delivery system further includes a transition throw-off and vertical adjustment assemblies which may be operated while running.
    Type: Grant
    Filed: January 9, 1998
    Date of Patent: September 5, 2000
    Assignee: Western Printing Machinery Company
    Inventor: Philip V. Voorhees
  • Patent number: 5988362
    Abstract: A curved conveyor includes an outer circumferential frame supported by L-shaped legs. An inner circumferential frame is supported in a cantilevered manner from the outer circumferential frame by means of horizontally extending beams connected between the inner circumferential frame and the outer circumferential frame. A drive-side tapered roller is rotatably supported at one end of the inner and outer circumferential frames and a lift-up section carrying a driven side tapered roller is pivotally supported at the opposite end of the inner and outer circumferential frames.
    Type: Grant
    Filed: May 7, 1997
    Date of Patent: November 23, 1999
    Assignee: Thames Co., Ltd.
    Inventors: Tadahiko Nakamura, Toshinori Horikawa, Yoichi Takamoto
  • Patent number: 5984083
    Abstract: A conveyor belt tensioning mechanism for use with a conveyor having a frame, a conveyor member in the form of a belt, and a pair of rollers, includes a pair of tensioning members mounted to opposite sides of the conveyor frame, with one of the rollers being mounted to the tensioning members. The tensioning members are slidable between extended and retracted positions by means of a pair of fasteners extending through a slot formed in each tensioning member and interengaged with the frame via a locking sleeve. The fasteners extend through a locking plate, such that tightening the fasteners frictionally engages the tensioning member between the frame and the locking plate. The belt is tensioned by loosening the locking fasteners and engaging a tensioning tool with the frame adjacent each tensioning member. The tensioning tools are pivoted into engagement with the tensioning members, and include a cam surface which forces the tensioning members outwardly to an extended position for tensioning the belt.
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: November 16, 1999
    Assignee: Dorner Mfg. Corp.
    Inventors: Michael A. Hosch, Scott M. Hall
  • Patent number: 5947264
    Abstract: An improved conveyor belt tensioner, accessible from the top of the conveyor has a push block which slides along an angled guide to apply force between the take up member and the frame of the conveyor. Also, a guide which is laterally movable along a cross support between the frame of the conveyor is provided to adjust the centering of the belt between the frame members.
    Type: Grant
    Filed: May 26, 1998
    Date of Patent: September 7, 1999
    Assignee: Molding Automatic Concepts, Inc.
    Inventor: Frank A. Eltvedt
  • Patent number: 5947263
    Abstract: A conveyor element tensioning mechanism which is formed by a pair of like tensioning supporting opposite ends of an idler roller. The tensioning devices each include a slide member with a cylindrical pin which is supported within a cylindrical guide opening. The cylindrical pins have a studs extending radially therefrom which extend through a radially opening slots formed along the lengths of the guide openings in order to prevent the cylindrical pins from rotating. The studs support manual operators which may be actuated to move the slide members into a conveyor element tensioning position. During actuation, the manual operators engage an adjustably positioned reference surface so that the resulting tension in the conveyor element may be easily altered.
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: September 7, 1999
    Assignee: Hi-Speed Checkweigher Co., Inc.
    Inventors: John E. Uber, Carl A. Matson, Eugene A. Helmetsie
  • Patent number: 5857560
    Abstract: A guiding device is disclosed for a conveyor chain for transporting objects adapted to be carried by load-carriers which are connected or connectable to the conveyor chain, which is formed by a plurality of carrier elements arranged in a row and a connector for connecting the carrier elements to each other so that the chain may be deflected simultaneously both vertically and laterally. The guiding device comprises a channel including grooves in which the conveyor chain is intended to run and an inwardly facing sliding surface for guiding the conveyor chain, the inwardly facing sliding surface is adapted to the cross-sectional shape of the carrier elements, and the guiding device further includes a profile beam enclosing the channel, and including a longitudinal slot opening outwardly whereby the load-carriers connected to the conveyor chain are carried thereby, and the inwardly facing sliding surface comprises a plurality of slide elements including strip protrusions extending into the grooves in the channel.
    Type: Grant
    Filed: July 3, 1996
    Date of Patent: January 12, 1999
    Inventor: Lars Bjorkholm
  • Patent number: 5797481
    Abstract: A modular conveyor system is disclosed as including an unique supporting framework featuring a horizontally elongated spine (12); legs (32) for supporting spine (12); posts (34) upstanding from legs (32); and an elongated rail (18) supported by posts (34) and arranged above and in a horizontally offset relationship relative to spine (12). Spine (12) serves to support one or more modular conveyor units (66), rail (18) serves to support one or more diverse art devices (48) required to be associated with conveyor units (66); and posts (34) serve to support a side panel (24) to extend lengthwise of spine (12).
    Type: Grant
    Filed: January 29, 1996
    Date of Patent: August 25, 1998
    Assignee: Hi-Speed Checkweigher Co., Inc.
    Inventors: John E. Uber, Carl A. Matson, Eugene A. Helmetsie
  • Patent number: 5615606
    Abstract: A conveyor apparatus including dips to turn and tumble items placed on the conveyor. The conveyor apparatus has a conveyor belt configured in a series of dips arranged to insure the turning and tumbling of items placed on the conveyor belt.
    Type: Grant
    Filed: June 21, 1996
    Date of Patent: April 1, 1997
    Assignee: Vos Industries Pty. Ltd.
    Inventor: Peter M. Vos
  • Patent number: 5609238
    Abstract: In a multi-section conveyor, a conveyor section provides a belt tension adjusting mechanism employing extension arms on an expanding tensioner. The extension arms carry the end belt roller and apply increased tension to the belt as the arms extend. The opposed end rollers of adjacent sections are joined to coaxial end gears, and an intermediate idler gear interconnects the end gears when the sections are joined. When sections are assembled, the extension arms mate into the neighboring section and are contoured to permit angular variation in the mating. A latching mechanism on one section locks the end roller of the next section in engagement slots and boxes the gears for safety.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: March 11, 1997
    Inventor: Frantz G. Christensen
  • Patent number: 5314054
    Abstract: An apparatus for buffering or temporarily storing articles is disclosed. The apparatus includes a feed for the articles with at least one endless flexible member moving past the feed. Doglike elements which engage the articles and between which the articles are transported are movable together with the flexible member. One or more guide members for guiding the flexible member during changes of direction are provided with a discharge for discharging an article from between two doglike elements. A mechanism for diminishing the impact to the articles is provided wherein the guide members are movable relative to the feed and/or discharge.
    Type: Grant
    Filed: April 13, 1992
    Date of Patent: May 24, 1994
    Assignee: EBM Techniek B.V.
    Inventor: Gerardus J. C. van Laar
  • Patent number: 5259495
    Abstract: The invention provides an article flipper comprising a first turnover member mounted to a conveyor frame member for rotation about an axis substantially perpendicular to said frame member, a slot in the turnover member for receiving a side edge of sheets, a stop for arresting sheets with a leading portion of the side edges in the slot, and a rotator for rotating the first turnover member through about 180 degrees. The article flipper may include a second turnover member having a detent or being movable to clamp sheets between it and the first turnover member, or may include a rack and pinion. A belt tensioner which may be used with the article flipper is also provided and comprises a tensioning wheel for engaging the belt, a moveable block including a shaft for mounting the tensioning wheel, and a wedge for urging the block toward the belt.
    Type: Grant
    Filed: January 22, 1993
    Date of Patent: November 9, 1993
    Assignee: Simplimatic Engineering Company
    Inventor: John J. Douglas
  • Patent number: 5205400
    Abstract: A transportation device for the transportation of foodstuffs in particular of cut foods consists in essence of a rack in which two rollers are arranged across from one another and over which runs a conveyor belt designed as a continuous belt. The rollers can be rotated on the free ends of end sections readily removable from the rack. This makes it possible to readily exchange the conveyor belt and to modify the length of the transportation device in a simple manner.
    Type: Grant
    Filed: October 11, 1991
    Date of Patent: April 27, 1993
    Assignee: Natec, Reich, Summer GmbH & Co. KG.
    Inventors: Walter Breuss, Erwin Wolf
  • Patent number: 5174435
    Abstract: A conveyor construction including a frame having a pair of side rails with each side rail having a longitudinal T-shaped slot. A plurality of cross members are connected between the side rails and support a bed plate. An endless belt rides on the bed plate and is trained over an adjustable spindle assembly which is located at an end of the conveyor. The spindle assembly includes a spindle journalled between a pair of side members that are mounted for sliding movement in the T-slots of the respective side rails. A ratchet and pinion mechanism interconnects the conveyor frame with the spindle assembly and acts to move the spindle assembly longitudinally of the frame to tension the belt. A belt tracking mechanism is associated with each side of the spindle assembly and includes a cam member which is engaged with the respective side member of the spindle assembly. Individual rotation of the cam members serve to properly track the belt on the bed plate.
    Type: Grant
    Filed: January 4, 1991
    Date of Patent: December 29, 1992
    Assignee: Dorner Mfg. Corp.
    Inventors: Wolfgang C. Dorner, Kenneth A. Hansen, Michael A. Hosch