Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7650979 | Ball transfer device A ball transfer device is disclosed herein. An embodiment of the ball transfer device includes a chamber, wherein a first opening and a second opening extend into the chamber. A ball is located between the first opening and the second opening and is movable within t... | 01/26/2010 |
| 7431148 | Universal transmission roller wheel A universal transmission roller wheel comprises a 90° roller support and a 45° roller support. There is a drive axle hole in the center of each support. The 90° roller support and the 45° roller support are integrated in parallel. 90° rollers are mounted on fir... | 10/07/2008 |
| 7370746 | Ball transfer unit and ball table A ball transfer unit comprising a body in a seat face recessed in a semispherical shape is formed, a plurality of small balls rollingly in contact with the seat face of the body, a large ball rollingly in contact with the plurality of small balls, and a cover fitted... | 05/13/2008 |
| 7364038 | Conveyor belt link incorporating one or more rollers A conveyor comprising an endless conveyor belt made from a plurality of rows of hinged interconnected belt links where each row extends in a width direction substantially perpendicular to a traveling direction of the belt and comprises at least one link, where subst... | 04/29/2008 |
| 7287642 | Trippable idler roller assembly for belt conveyors An idler roller assembly comprises a base frame which includes first and second spaced-apart mounting brackets, a support frame which includes a support tube that comprises a first end which is positioned adjacent the first mounting bracket and a second end which is... | 10/30/2007 |
| 7267318 | Vibration control device A device for control of the effects of vibrations on vibration sensitive equipment when a plurality of the devices are placed on a support surface and in operative contact with the vibration sensitive equipment where said device is a unitary piece of a soft, pliable... | 09/11/2007 |
| 7249671 | Roller-belt conveyor for accumulating and moving articles laterally across the conveyor A conveyor using a roller belt with rollers arranged to rotate on oblique axes to urge articles toward a side guide. The conveyor includes an oblique-roller belt supported on a carryway for running in a direction of belt travel. Rollers extend above an outer conveyi... | 07/31/2007 |
| 7188721 | Adjustment apparatus An adjustment apparatus, which is able to adjust a substrate position. The apparatus includes a plurality of transport rails, a plurality of rollers on each transport rail, a pin up device and an adjustment device. The roller is transported the glass substrate, a pi... | 03/13/2007 |
| 7168546 | Roller mountable to a cooling bed plate transfer grid An inexpensive, high capacity, and easy to install roller for engaging hot metal plates being transferred over a cooling bed plate transfer grid. An invertible block which may have a bearing is provided at each end of the axle for the roller. The bearing block is re... | 01/30/2007 |
| 7131531 | Roller shoes in modular-belt conveyors Roller return and holddown shoes for a modular-belt conveyor. The shoes have a body that extends in height from a base to a convex outer face. Cavities in the body open onto the base and the outer face. Rollers rotatably received in the cavities have salient portion... | 11/07/2006 |
| 7086517 | Cargo system roller/lock/power drive unit tray integration An apparatus is provided for housing cargo-moving devices in a cargo handling system. The apparatus comprises a variable width tray having a wide section, a narrow section, and a transition section for connecting the narrow section to the wide section. The narrow se... | 08/08/2006 |
| 7073994 | Cargo deck for an aircraft There are known cargo decks for aircraft that comprise floor beams or an equivalent floor substructure and floor panels, ball mats, roller tracks, or other such transport devices connected thereto for conveying and fixing in position pallets, containers or similar o... | 07/11/2006 |
| 7073651 | Modular mat gravity-advance roller conveyor A modular gravity-advance roller conveyor for conveying articles down an inclined path. The conveyor comprises an easy-to-configure modular conveyor mat supported in a conveyor frame with an inclined base. The conveyor mat is constructed of a series of rows of rolle... | 07/11/2006 |
| 7021454 | Conveyor chain To provide a conveyor chain, which easily can laterally discharge articles conveyed by the conveyor chain and easily can make U-turn and in which a count of parts of the chain links forming the conveyor chain can be reduced and the assembly, explosion and parts repl... | 04/04/2006 |
| 7007786 | Conveyor apparatus on a cargo deck of an aircraft Some known types of conveyor apparatus on a cargo deck of an aircraft comprise roller tracks with a U-shaped cross section that are attached to or on the cargo deck, as well as ball units attached to the roller tracks. In order to enable simple and reversible attach... | 03/07/2006 |
| 7007787 | High endurance high capacity ball transfer unit An extended life ball transfer unit has a housing with a well of generally cup-shaped configuration with at least the lower portion of its surface being defined by a pair of radii mutually offset to opposite sides from its vertical axis to generate a gothic church a... | 03/07/2006 |
| 6981580 | Apparatus for rotating an article An apparatus having approximately parallel conveyors (2, 2′) for transporting and rotating an article (G) has multiple longitudinally arranged omnidirectional rollers (24), each omnidirectional roller (24) having multiple individual rollers ( | 01/03/2006 |
| 6962222 | Mobile agricultural machinery A mobile agricultural machine, particularly for use as a combine, which demonstrates improved operational movement and travel performance characteristics, and is capable of easily changing direction during operation, includes right and left travel crawlers, supporte... | 11/08/2005 |
| 6962030 | Method and apparatus for interconnected, rolling rig and oilfield building(s) A conventional land drilling rig is interconnected to the substructure for an oilfield pad location. The interconnected drilling rig is placed on top of matting. The matting has embedded rollers to facilitate movement of the drilling rig as a “convoy” across the... | 11/08/2005 |
| 6918700 | Ball bearing rail assembly A ball bearing rail assembly includes a first slide member (100), a second slide member (200), and a plurality of ball bearings (300) movably retained in the first slide member. The first slide member includes a plurality of spoon-like tabs (... | 07/19/2005 |
| 6889815 | Conveying apparatus and conveying system There are disclosed a conveying apparatus and a conveying system in which a force is efficiently transmitted to an article so as to smoothly convey the article in an arbitrary direction. In each of feed portions 15 provided at a conveying apparatus 10, 11 ... | 05/10/2005 |
| 6883965 | Support for ball transfer unit A support for use with a ball transfer unit associated, in use, with a double-skinned deck panel, the support being characterised by being elongate, rigid, and adapted at one end to receive the housing of a ball transfer unit and to seat beneath a peripheral shoulde... | 04/26/2005 |
| 6814212 | Transport device for use with transport guides in conveyor systems The present invention relates to transport devices for use with transport guides in conveyor systems. The transport device includes a transport guide stabilizer. The invention further relates to a conveyor assembly including a plurality of transport devices, each of... | 11/09/2004 |
| 6786318 | Low frictional transfer apparatus A transfer apparatus for permitting ease of movement of a workpiece across an operating surface of a table where the table includes a plurality of slots. Mounted within each slot is a rail member. Mounted within each rail member is a plurality of rolling members. Th... | 09/07/2004 |
| 6729460 | Rapid deploy roller transfer device A portable rapidly deploying roller transfer device is disclosed, which is adapted to receive and convey objects. The transfer device may be rapidly manipulated between an elongated open configuration and a collapsed compact configuration. The framework of the trans... | 05/04/2004 |
| 6648128 | Conveyor, method for conveying a semiconductor wafer, and method for manufacturing a semiconductor device A conveyor is provided that is capable of preventing degradation in quality of an article being conveyed. The conveyor includes a conveyor belt; and a rolling element rotatably provided at a surface of the conveyor belt. A plurality of rolling elements ar... | 11/18/2003 |
| 6619465 | Points for a feeding system, especially a gravity roller table The invention relates to a switch for transport system, in particular for a gravity roller table, for deflecting of transport goods in a plane from a main conveyor to a lateral conveyor branching from the main conveyor, wherein the switch comprises a grou... | 09/16/2003 |
| 6516934 | Pneumatic pop-up units for material handling equipment Pneumatic pop-up unit for material handling equipment. In one embodiment, the unit comprises a stamped metal housing having a circumferential flange extending radially outwardly from the top. The unit also comprises a stamped metal cap comprising an outer... | 02/11/2003 |
| 6468015 | Container pick and return system A container pick and return system is provided having a two-tiered flow rail conveyor system that includes an inclined upper set of feed flow rails forming an input conveyor assembly and a lower set of inclined return flow rails forming an exit conveyor u... | 10/22/2002 |
| 6457865 | Ball-type anti-friction device A ball-type anti-friction device which has a housing, a ball cage mounted within the housing for movement relative to the housing between a lower inactive position and an upper active position. The ball cage contains a relatively large ball mounted on rel... | 10/01/2002 |
| 6409010 | Split drive component with maintained alignment A shaft mounted drive component, such as a cluster roller assembly, includes a body member having first and second half members and an opening defining a central axis through which a shaft is received for mounting the body member on a shaft. The first and... | 06/25/2002 |
| 6409388 | Ball support having a cleaning structure A ball support includes a cup having a passage formed through the cup and communicating with the chamber of the cup, and having a peripheral flange for attaching to an object. A rotary member and a number of balls are received and retained in the chamber ... | 06/25/2002 |
| 6401900 | Unidirectional rotating support assemblies and system using such assemblies Featured is a unidirectional rotating support assembly that is located in one or more apertures provided in a surface of a work station, a scissors lift, a cart conveyor or any other work station, bench, table, platform or device known in the art involvin... | 06/11/2002 |
| 6364086 | Chain of rolling elements chain arrangement A chain of rolling elements comprises a plurality of rolling elements and an elongate carrier belt with a plurality of recesses for receiving the rolling elements, a plurality of retainers for retaining the rolling elements received in the recesses and at... | 04/02/2002 |
| 6360865 | Cluster roller assembly with improved roller A cluster roller assembly used in material handling includes a body member for mounting a driven shaft. The body member includes a periphery having a plurality of roller support positions. A roller is supported at each roller support position. A central b... | 03/26/2002 |
| 6340083 | Transmission wheel and a platform transmission apparatus formed by said wheels A transmission wheel for a platform transmission apparatus includes a wheel frame having a disk with a central hole for fixing to a drive axle, and a plurality of ball rollers carried on each side of the disk by supports which extend axially. The ball rol... | 01/22/2002 |
| 6315109 | Split roller wheel and method of assembly A split roller 150 may be removed from an axle 104 without requiring access to the axle end. A split wheel hub 152 supports a plurality of peripheral rollers 180, which may be arranged in two rows spaced along the hub axis. In a preferred embodiment, the ... | 11/13/2001 |
| 6279716 | Apparatus for movably supporting article An apparatus for movably supporting an article includes a plurality of raising units arranged in a row on a mount, with their outer side surfaces contacting with those of adjacent ones. Each raising unit includes a lifting member including a piston and a ... | 08/28/2001 |
| 6279717 | Conveyor frame A conveyor frame comprises a support frame, a rolling shaft, and a ball frame. The support frame is provided at both ends of the longitudinal axis thereof with a folded plate which is provided with a locating hole. The folded plates are provided with an a... | 08/28/2001 |
| 6244417 | Material handling unit with multidirectional helical roller assemblies A material handling unit includes a plurality of multidirectional helical roller assemblies positioned transverse across and longitudinally along a planar platform. Each of the multidirectional helical roller assemblies includes an outer ring member havin... | 06/12/2001 |
