| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 474207000 | Including nonmetallic part | 7 |
| 20080214344 | Transmission Chain Monitoring System - A transmission chain comprises has a data collection device mounted on at least one of the links. A strain gauge sensor is mounted on the inwardly facing surface of an outer link plate symmetrically about a centre link thereof and measures the strain on the link plate. The measurements are compared to a threshold and a visual indicator mounted on the chain is activated if the threshold is exceeded. The data collection device can be controlled by a first controller device that simply switches it between a quiescent state to an overload detecting state or a second controller type can be used for data-logging and analysis. | 09-04-2008 |
| 20090318254 | CHAIN - A chain has a resin member integrally molded on an inner circumferential surface of a bushing with a strong joining force between the resin member and an inner circumferential surface of the bushing. The chain has an inner link in which both end portions of a pair of front and rear bushings are press-fitted into bushing holes of a pair of right and left inner plates, and an outer link in which both end portions of a pair of front and rear pins are press-fitted into pin holes of a pair of right and left outer plates. The inner and outer links are alternately connected to each other in a longitudinal direction of the chain. The inner circumferential edge portions | 12-24-2009 |
| 20100022341 | Chain With Lubricant sealing gaskets - A chain has links formed by pairs of internal and external plates respectively connected by means of pins and inserts fitted onto the pins and projecting through the internal plates. Rollers are fitted onto the inserts between the internal plates and a lubricated interface is identified between each roller and the respective insert. The roller is provided, at each end, with a bevel or cavity tilted inwards the roller to identify a seat between the internal plate and the external surface of the respective insert, into said seat the sealing gasket being accommodated. A further sealing gasket is advantageously arranged between the plates to seal an interface between the pin and insert. | 01-28-2010 |
| 20100216580 | SILENT CHAIN - In a silent chain, cushion pads are provided in the inner flank regions of at least every second link row. These cushion pads restrict inward flexion of the chain and reduce vibration of the free span regions of the chain. The cushion pads can be individual pads each associated with a link plate, or elongated pads each associated with a row of link plates. In either case, side parts protruding toward the outside of the loop formed by the chain can also restrict outward flexion of the chain. | 08-26-2010 |
| 20110136606 | CHAIN-SPROCKET MECHANISM, CHAIN AND SPROCKET - A chain-sprocket mechanism is disclosed which is highly resistant to corrosion caused by a potential difference arising when metallic materials of different types contact each other. A chain of the chain-sprocket mechanism is structured by coupling a plurality of chain links that consist of pairs of outer plates, pairs of inner plates, bushings fixed to the inner plates and pins inserted through the outer plates, the inner plates and the bushing, which meshes with teeth of a sprocket. The surface of either of the bushing or the teeth is formed of a non-metallic material; thereby, a potential difference does not arise through the contact between the bushing and the teeth. Accordingly, corrosion caused by a potential difference can be avoided, i.e., the corrosion resistance of the chain-sprocket mechanism can be improved. | 06-09-2011 |
| 20110251004 | Internal ring sealed chain - Links in industrial chains are connected by pins in bushings. Internal sealing rings in internal annular grooves near ends of bushings prevent inward movement of debris and outward movement of grease past the grooves. Steel internal sealing rings are expanded further into the grooves upon insertion of the pins through the bushings and the steel rings. The steel rings tightly grip the pins and rotate with the pins. Opposite ends of the bushings extend slightly from inside sidebars. Outer conical nitrile seals have collars placed on extended ends of the bushings and have large radiused ends for contacting inner surfaces of outside sidebars that hold the pins. | 10-13-2011 |
| 20110294616 | SEAL CHAIN - There is provided a seal chain in which sealing performance of a seal mechanism is enhanced so as to be able to deal with a displacement radially of the connecting pins, and to be able to keep a sealing function for a long period of time even if highly fluid lubricant is used. Each seal mechanism comprises an inner circumferential ring fitted and fixed onto the end of the bush an annular seal receiving member disposed on the outer peripheral side of the inner circumferential ring so as to be movable in the radial direction and attached with an annular member enclosing a radial seal on the side of the outer link plate, a bellows seal extending between the inner circumferential ring and the annular seal receiving member and deformable in the radial direction and a seal ring provided on the side of the outer link plate facing to the inner link plate at the position corresponding to the annular radial sealing member concentrically with the pin to abut with the annular sealing member to seal the lubricant. | 12-01-2011 |
