Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7992706 | Limited force, self locking tensioner 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... | 08/09/2011 |
| 7802674 | Belt tensioning system for vertical conveyor belt 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 lev... | 09/28/2010 |
| 7395919 | Conveyor 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 se... | 07/08/2008 |
| 7383944 | Sanitary conveyor center drive assembly 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 arrangemen... | 06/10/2008 |
| 7284947 | Braced telescoping support strut and system A telescoping support strut configured to support a conveyor assembly of a portable conveyor system includes a first strut section and a second strut section configured to telescopically receive and substantially surround beams of the first strut section. The first ... | 10/23/2007 |
| 7267223 | Belt conveyor with a supporting platform formed from a single sheet of metal 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 s... | 09/11/2007 |
| 7243782 | Conveyor 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 se... | 07/17/2007 |
| 7232029 | Cantilevered conveying belt for a sortation system A conveyor system having a primary conveyor and a cantilevered conveying belt. In the preferred embodiment, the cantilevered conveying belt includes a cantilevered frame having at least one conveyor belt and a belt tension assembly attached to the cantilevered frame... | 06/19/2007 |
| 7222728 | Adjustable shield for a conveyor belt 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 direction... | 05/29/2007 |
| 7150352 | Curved belt conveyor A curved belt conveyor includes at least two zones, each of which may be defined by a motorized roller and at least one idler roller which are positioned along and between opposite sidewalls of the conveyor, and a continuous belt reeved around the rollers. The conve... | 12/19/2006 |
| 7073660 | Belt curve conveyor A belt curve conveyor has a number of guide wheel units provided in proximity to the peripheral part of a fan-type belt slung over between tapered end pulleys of a drive side and a driven side, wherein the guide wheel units comprise first and fourth guide wheels are... | 07/11/2006 |
| 7051869 | Beaded conveyor belt The beads of a beaded conveyor belt for a curve conveyor are constituted by a number of bead constituting bodies (2b) that are disposed over the entire periphery of the outer surface along the outer peripheral edge of a belt main body (2a... | 05/30/2006 |
| 6974022 | Beaded conveyor belt The beads of a beaded conveyor belt for a curve conveyor are constituted by a number of bead constituting bodies (2b) that are disposed over the entire periphery of the outer surface along the outer peripheral edge of a belt main body (2a... | 12/13/2005 |
| 6971510 | Curved belt conveyor A curved belt conveyor includes at least two zones, each of which may be defined by a motorized roller and at least one idler roller which are positioned along and between opposite sidewalls of the conveyor, and a continuous belt reeved around the rollers. The conve... | 12/06/2005 |
| 6964333 | Conveyor chain guide system Chain guide assemblies for conveyor systems including matched chain guide strips and preassembled straps that interconnect and locate the chain guide strips in constant perpendicular spacing. In certain aspects, the matched chain guide strips are preassembled with t... | 11/15/2005 |
| 6957736 | Conveyor for transporting load carriers A conveyor for transporting load carriers, having load-bearing members which are spaced apart parallel to one another on frame parts and are intended for accommodating drivable load-bearing elements which form longitudinally running load-bearing tracks for the load ... | 10/25/2005 |
| 6955119 | Strapping machine with pivotal work surfaces having integral conveyors A strapping machine configured to feed a strapping material around a load, position, tension and seal the strapping material around the load, includes hinged, readily removable in-feed and out-feed work surfaces with integral conveyors. The strapping machine include... | 10/18/2005 |
| 6848570 | Unloading end frame of a die-loading belt conveyor of ceramic materials 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 i... | 02/01/2005 |
| 6601692 | Device for cleaning endless conveyors 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 conne... | 08/05/2003 |
| 6478161 | Magnetic separator 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... | 11/12/2002 |
| 6371283 | Modular sanitary conveyor 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 ... | 04/16/2002 |
| 6354203 | Belt drive for a machine for processing flat printing materials 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, wh... | 03/12/2002 |
| 6298981 | Conveyor construction 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 ... | 10/09/2001 |
| 6279733 | Conveyor belt tensioning and tracking systems 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. Mo... | 08/28/2001 |
| 6276519 | Rodless cylinder rope tensioning apparatus 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 ro... | 08/21/2001 |
| 6274846 | Belt conveying apparatus and image forming apparatus 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 assem... | 08/14/2001 |
| 6267228 | Conveyor belt tracking and tensioning system 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 nonop... | 07/31/2001 |
| 6209715 | Conveyor belt tensioning and tracking systems 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. Mo... | 04/03/2001 |
| 6170645 | Conveyor system having a frame adapted to receive a bearing 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 o... | 01/09/2001 |
| 6112884 | Idler roller assembly for a web-product delivery system 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 inc... | 09/05/2000 |
| 5988362 | Curved conveyor 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 ... | 11/23/1999 |
| 5984083 | Conveyor belt tensioning mechanism utilizing a manually operated cam-type tool 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 bei... | 11/16/1999 |
| 5947264 | Conveyor belt tensioner and guide 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 cros... | 09/07/1999 |
| 5947263 | Conveyor element tensioning mechanism 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 openi... | 09/07/1999 |
| 5857560 | Transporting means, method and arrangement for producing transport means 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 connect... | 01/12/1999 |
| 5797481 | Modular conveyor system 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)... | 08/25/1998 |
| 5615606 | Conveyor 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.... | 04/01/1997 |
| 5609238 | Conveyor section of multi-section conveyor 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 op... | 03/11/1997 |
| 5314054 | Buffer apparatus and driving system 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 articl... | 05/24/1994 |
| 5259495 | Belt tensioner and turnover device for a printed circuit board belt conveyor 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,... | 11/09/1993 |
