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| Number | Title | Issue Date |
| 8177670 | Bicycle sprocket A bicycle sprocket is provided with a sprocket body and a chain engagement structure. The chain engagement structure includes sprocket teeth defining chain rollers receiving troughs. At least two consecutive ones of the troughs include a driven-side surface and a no... | 05/15/2012 |
| 8100795 | Riveted sprocket assembly A riveted sprocket assembly that includes a sprocket carrier having a plurality of carrier arms and a plurality of sprockets attached to the carrier arms by rivets. First and second rivet heads of the rivets are countersunk into the carrier arms on one face and into... | 01/24/2012 |
| 8096908 | Bicycle sprocket with a laterally projecting gear change tooth A sprocket comprises a sprocket body and a plurality of sprocket teeth extending radially outwardly from a root portion of the sprocket body. The sprocket body has a first side surface and a second side surface, wherein a root portion side surface of the root portio... | 01/17/2012 |
| 8092329 | Bicycle chain rings with ramps Embodiments of the present invention include bicycle chain rings for bicycles having specially shaped ramps, tapers and profiled teeth for improved shifting performance. Additional embodiments of the bicycle chain rings of the present invention may be configured wit... | 01/10/2012 |
| 8066603 | Multi-speed sprocket assembly A multi-speed sprocket assembly is provided for engaging a bicycle chain displaceable by a derailleur. The multi-speed sprocket assembly generally includes at least one smaller sprocket and at least one larger sprocket. The larger sprocket includes first and second ... | 11/29/2011 |
| 8057338 | Bicycle sprocket apparatus with reinforcement between sprockets A bicycle sprocket apparatus comprises a sprocket support, a first sprocket coupled to the sprocket support at a plurality of circumferentially spaced first sprocket mounting locations, a second sprocket coupled to the sprocket support at a plurality of circumferent... | 11/15/2011 |
| 7959529 | Bicycle multi-gear cassette A bicycle multi-gear cassette mountable to a wheel hub that generally includes a truncated conical shell and a plurality of toothed sprockets having different numbers of teeth. The shell includes a plurality of coaxial annular cylinders of variable diameter extendin... | 06/14/2011 |
| 7942771 | Bicycle sprocket apparatus with a shift inhibiting structure A bicycle sprocket apparatus comprises a larger diameter sprocket and a smaller diameter sprocket, wherein the larger diameter sprocket has on its outer periphery a plurality of sprocket teeth, the smaller diameter sprocket has on its outer periphery a plurality of ... | 05/17/2011 |
| 7931553 | Bicycle sprocket apparatus with a chain support structure A bicycle sprocket apparatus comprises a sprocket mounting member, a first sprocket, and a second sprocket. The sprocket mounting member includes a hub mounting portion and a sprocket mounting portion, wherein the hub mounting portion is structured to be mounted to ... | 04/26/2011 |
| 7883437 | Sprocket A sprocket for transferring a force between a chain and a drive element that includes a plurality of teeth and a plurality of openings proximate the teeth. Each tooth has a load-bearing flank and a non-load-bearing flank. One of the plurality of openings are arrange... | 02/08/2011 |
| 7871347 | Bicycle rear sprocket assembly A bicycle rear sprocket assembly has a sprocket carrier, a first sprocket, a second sprocket and a third sprocket. The first and second sprockets are attached to opposite axial sides of the outer end portion of the attachment member of the sprocket carrier using a c... | 01/18/2011 |
| 7846048 | Multi-speed sprocket assembly A multi-speed sprocket assembly is suggested, including at least a larger sprocket and at least a smaller sprocket. The smaller sprocket has a trailing tooth which is last to engage the chain before moving onto the larger sprocket. The larger sprocket has a leading ... | 12/07/2010 |
| 7753815 | Bicycle chain wheel assembly A bicycle chain wheel assembly is provided with a chain wheel and a chain wheel cover. The chain wheel has a central mounting portion and an outer gear with a plurality of outer gear teeth. The chain wheel cover is disposed on an exteriorly facing side of the chain ... | 07/13/2010 |
| 7585240 | Bicycle sprocket assembly A bicycle sprocket assembly has two or more sprockets in which a chain is shifted between adjacent pairs of the sprockets. Each sprocket includes a chain engaging portion with a plurality of teeth and an attachment portion. At least one of the larger sprockets has a... | 09/08/2009 |
| 7544139 | Multifunctional pedaling motion bicycle An improved multifunctional pedaling motion bicycle, particularly to a transmission mechanism of bicycle includes a clutch member that is manually controlled to move between and selectively engage primary and secondary control blocks to perform different modes of op... | 06/09/2009 |
| 7503864 | Bicycle sprocket A bicycle sprocket basically has a metallic sprocket ring part and a synthetic resin fastening part that is configured to ensure that weight can be reduced and that loss of fastening force resulting from deterioration or deformation of the synthetic resin can be pre... | 03/17/2009 |
| 7491143 | Sprocket of a chain transmission for a bicycle A sprocket of a chain transmission for a bicycle is described, intended to be coupled with a further sprocket with a smaller diameter in a group of sprockets integral in rotation. The sprocket comprises a plurality of teeth which follow each other on the sprocket se... | 02/17/2009 |
| 7462120 | Warped chain ring gear used in a bicycle chain transfer A chain ring gear set adapted for attaching to spider arms. The spider arms are attached to and extend outwardly from a bicycle gear crank. The ring gear set is adapted for receiving a bicycle chain thereon. The chain is transferred on the ring gear set using a chai... | 12/09/2008 |
| 7442139 | Conveyance system In a slat conveyor, slats for supporting conveyed articles and personnel extend between two side-by-side, spaced, endless roller chains engaged with driving sprockets at one end of the conveying path and driven sprockets at the other end. At a location radially outw... | 10/28/2008 |
| 7361109 | Bicycle gear set A bicycle gear assembly has first and second sets of cog wheels, each having at least three cog wheels of various sizes including a largest cog wheel and a smallest cog wheel. These two sets are oriented so that the largest cog wheel of the first set is aligned with... | 04/22/2008 |
| 7351171 | Bicycle hub outer and bicycle hub A rear hub has a hub shaft and a hub outer that is configured to be mounted in a freely rotatable manner to the hub shaft. The hub outer has an outer main body and an adapter. The outer main body is arranged on the radially inward side of a sprocket, and has a first... | 04/01/2008 |
| 7344463 | Sprocket assembly A sprocket assembly that includes at least three sprockets and a sprocket carrier having a plurality of radially extending carrier arms. The carrier arms include a first receiving surface and a second receiving surface opposite the first receiving surface. A first s... | 03/18/2008 |
| 7334500 | Pedal crank having solid coupling A pedal crank includes a crank arm having a hole formed in one end to receive one end of a crank shaft which may be rotatably attached to a bicycle frame. An expanding device may be engaged in the end of the crank shaft for expanding the crank shaft to engage with t... | 02/26/2008 |
| 7294076 | Transmission apparatus for bicycle A transmission apparatus for a bicycle is capable of performing a transmission operation even while operating or running by the inertia of the bicycle. The transmission apparatus T for a bicycle includes a driving sprocket member rotationally driven by a crankshaft;... | 11/13/2007 |
| 7258638 | Sprocket of a chain transmission for a bicycle A sprocket of a chain transmission for a bicycle is described, intended to be coupled with a further sprocket with a smaller diameter in a group of sprockets integral in rotation. The sprocket comprises a plurality of teeth which follow each other on the sprocket se... | 08/21/2007 |
| 7258637 | Bicycle transmission A bicycle transmission is configured and arranged to improve the durability of the transmission. The transmission basically has a transmission operating device, a support structure, a front input section, an intermediate transmission and a rear output section. The t... | 08/21/2007 |
| 7244203 | Bicycle derailleur A bicycle derailleur is provided with a chain guide that basically includes inner and outer guide plates, a guide pulley and a tension pulley. The tension pulley is rotatable about a rotation axis between free ends of the guide plates. The tension pulley has an annu... | 07/17/2007 |
| 7240585 | Drive mechanism for a bicycle transmission assist mechanism A drive mechanism for a bicycle transmission assist mechanism includes a crank arm having a drive member. The drive member includes a first abutment facing a forward rotational direction of the crank arm and a non-concave sloped surface facing a rearward rotational ... | 07/10/2007 |
| 7131656 | Sprocket support member for a bicycle sprocket assembly A bicycle sprocket assembly having at least one subassembly including a sprocket support member and two sprockets. The support member has at least one engagement portion for coupling it to a bicycle freewheel and at least one fastening portion arranged in a radially... | 11/07/2006 |
| 7128672 | Cluster sprockets for bicycle transmissions and other prime movers This invention concerns a sprocket gear for facilitating the derailing of the chain of a bicycle transmission and other prime movers. The sprocket gear includes at least two sprockets axially and concentrically positioned relative to one another. Each sprocket inclu... | 10/31/2006 |
| 7125356 | Tension-reducing random sprocket A sprocket is provided having a plurality of teeth around its circumference. Adjacent teeth are separated by roots each having a root radius defined as the distance between the center of the sprocket and a point along the root closest to the sprocket center in a rad... | 10/24/2006 |
| 7118505 | Integrally formed gear set with a plurality of gears An integrally formed gear set with a plurality of gears comprises a first, a second and a third gear. Each gear has a plurality of teeth and a plurality of recess portions. The teeth and recess portions are alternatively arranged. The first, second and third gears a... | 10/10/2006 |
| 7074147 | Roller chain sprocket with symmetric cushion rings A sprocket includes a hub and a plurality of teeth projecting radially outwardly from the hub. At least one cushion ring is located adjacent the teeth, and the cushion ring defines a plurality of compression pads separated from each other by transverse grooves. Each... | 07/11/2006 |
| 7061228 | Apparatus for detecting rotation of a bicycle part An apparatus for detecting rotation of a bicycle part comprises a casing member comprising a generally annular body structured to be mounted to the bicycle part so that the annular body is incapable of rotating relative to the bicycle part as the bicycle part rotate... | 06/13/2006 |
| 7044876 | Bicycle sprocket having lateral protrusions for use in a multiple sprocket assembly A sprocket is adapted to be mounted to a sprocket support that rotates around an axle. The sprocket comprises a sprocket body having a side surface and an inner peripheral surface defining a sprocket-mounting opening, wherein at least one portion of the inner periph... | 05/16/2006 |
| 7022037 | Gear assembly for a bicycle gear change Gear assembly for a bicycle gear change, comprising at least one gear with a larger diameter and at least one gear with a smaller diameter. The selected gear, generally of a larger diameter, has at least one sector dedicated to upwards shifting that may include a pl... | 04/04/2006 |
| 7011592 | Sprocket assembly for a bicycle A sprocket comprises a sprocket portion having a plurality of radially extending teeth, a first coupling portion extending from a first side of the sprocket portion and having a first coupling structure disposed on an inner peripheral surface thereof, and a second c... | 03/14/2006 |
| 7004867 | Top sprocket for a rear sprocket assembly and rear sprocket assembly for a bicycle A rear sprocket assembly has a plurality of sprockets with the smallest sprocket being a top or first sprocket. At least one of the teeth is a down shift tooth that has a recessed side surface to assist in shifting the chain to the next larger sprocket. Preferably, ... | 02/28/2006 |
| 7001294 | Method of using a motion sensor with a bicycle sprocket assembly A method for shifting a bicycle transmission that includes a derailleur for shifting a chain among a plurality of sprockets. The transmission includes at least a first sprocket and a second sprocket, wherein at least one of the first sprocket and the second sprocket... | 02/21/2006 |
| 6992413 | Bicycle hub dynamo with a freewheel A bicycle hub dynamo comprises a hub spindle adapted to be mounted to a frame of the bicycle; a hub body disposed around the hub spindle, wherein the hub body has a pair of axially spaced hub flanges; a plurality of bearings disposed between the hub body and the hub... | 01/31/2006 |
