Patents Assigned to Eko Sport, Inc.
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Patent number: 9981712Abstract: A shock absorber includes a first end and a second end that reciprocate relative to one another. The shock absorber includes a gas spring chamber, a damping chamber, and a floating piston. The first side of the floating piston is in fluid communication with the gas spring chamber. The second side of the floating piston is in fluid communication with the damping chamber. The gas in the gas spring chamber applies pressure against the floating piston, which applies pressure to the substantially incompressible fluid in the damping chamber. This pressure transfer may be adequate to minimize or prevent cavitation.Type: GrantFiled: September 14, 2016Date of Patent: May 29, 2018Assignee: Eko Sport, Inc.Inventor: Darek C. Barefoot
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Patent number: 9903436Abstract: A shock absorber has a valve controlling the flow rate of fluid between a first chamber and a second chamber. The shock absorber may include a blocker that has a variable profile. The blocker may be rotatable using an external adjuster to position the blocker to variably occlude an aperture and vary the damping of the suspension. A bias may also be positioned adjacent the blocker to allow force from the fluid to move the blocker and expose the aperture, thereby allowing fluid to flow through the entirety of the aperture.Type: GrantFiled: March 30, 2016Date of Patent: February 27, 2018Assignee: Eko Sport, Inc.Inventor: Darek C. Barefoot
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Patent number: 9731574Abstract: A shock absorber includes a first portion and a second portion that reciprocate relative to one another. The shock absorber includes a gas spring chamber defined between an interior wall and a plunger. A seal including a lip portion minimizes gas pressure loss and friction between the two portions.Type: GrantFiled: August 22, 2014Date of Patent: August 15, 2017Assignee: Eko Sport Inc.Inventors: Darek C. Barefoot, Eric Prinster, Scott Winans
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Patent number: 9669899Abstract: The present disclosure relates to a chain ring having teeth positioned in one of three lateral positions. At least one tooth may be placed in each lateral position. At least half the teeth may be positioned in a middle lateral position. The teeth in the first and third lateral positions may apply opposing lateral forces to a bicycle drive chain.Type: GrantFiled: February 27, 2015Date of Patent: June 6, 2017Assignee: EKO Sport, Inc.Inventors: Darek C. Barefoot, Scott S. Winans, Timothy A. Fry
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Patent number: 9573649Abstract: A suspension unit for a front fork of a vehicle includes an annular tube. The first tube defines a compression chamber and a damping chamber. A damper includes a first valve allowing gas to variably flow from the compression chamber to the damping chamber and a second valve allowing gas to flow from the damping chamber to the compression chamber. An external adjuster allows a rider to adjust the first valve to improve ride conditions.Type: GrantFiled: April 1, 2015Date of Patent: February 21, 2017Assignee: Eko Sport, Inc.Inventor: Darek C. Barefoot
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Patent number: 9327786Abstract: A guard for a chain and chain ring of a bicycle includes a bracket and a bracket extension. The bracket extension has a first end and a second end, and at least the second end is integrally formed. The second end includes a U-shaped configuration configured to house a chain retainer. The bracket and the bracket extension may be secured to one another using two fasteners. The bracket and the bracket extension may rotate relative to one another when only one of the fasteners is attached and may be fixed relative to one another when both of the fasteners are attached.Type: GrantFiled: August 15, 2013Date of Patent: May 3, 2016Assignee: Eko Sport, Inc.Inventors: Ryan K. Cranston, Paul J. Aieta, Scott S. Winans
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Patent number: 9322449Abstract: A shock absorber having a valve controlling the flow rate of fluid between a compression chamber and a rebound chamber in a housing and separated by a piston. The valve has an orifice component and a blocker component, one of which has a permanent magnet, and the other of which has a magnetically permeable material. Upon the application of sufficient fluid pressure, the blocker component is forced away from the orifice component, despite the magnetic bias that tends to attract the two structures. Because the magnetic force decreases as the two components are spaced farther apart, the shock absorber has excellent performance characteristics. Alternatively, a mechanical spring urges the blocker closed, and magnetic attraction between the blocker and a spaced opener mitigates the increased force of the compressed spring tending to close the valve.Type: GrantFiled: February 22, 2013Date of Patent: April 26, 2016Assignee: Eko Sport, Inc.Inventor: Darek C. Barefoot
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Patent number: 9199689Abstract: A wheel assembly quick release lever pivots against a thrust washer to apply a force along the length of an axle. The thrust washer is pressed toward a sleeve nut at the opposite end of the axle, which displaces the thrust washer relative to the axle, drawing the sleeve nut and a pair of compression rings toward one another deeper into conical cavities of dropouts. The radially outwardly facing surfaces of the compression rings firmly seat against the tapered cavities of the closed bore dropouts, and the radially inwardly facing surfaces of the compression rings firmly seat against the axle to provide resistance to rotational movement of the axle relative to the dropouts. The inboard surfaces of the dropouts seat against the load-bearing axle faces of the hub, which provides resistance to lateral movement.Type: GrantFiled: July 21, 2014Date of Patent: December 1, 2015Assignee: Eko Sport, Inc.Inventor: Darek C. Barefoot
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Patent number: 8820853Abstract: A wheel assembly quick release lever pivots against a thrust washer to apply a force along the length of an axle. The thrust washer is pressed toward a sleeve nut at the opposite end of the axle, which displaces the thrust washer relative to the axle, drawing the sleeve nut and a pair of compression rings toward one another deeper into conical cavities of dropouts. The radially outwardly facing surfaces of the compression rings firmly seat against the tapered cavities of the closed bore dropouts, and the radially inwardly facing surfaces of the compression rings firmly seat against the axle to provide resistance to rotational movement of the axle relative to the dropouts. The inboard surfaces of the dropouts seat against the load-bearing axle faces of the hub, which provides resistance to lateral movement.Type: GrantFiled: March 25, 2011Date of Patent: September 2, 2014Assignee: Eko Sport, Inc.Inventor: Darek C. Barefoot
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Patent number: 8727080Abstract: A shock absorber having a valve controlling the flow rate of fluid between a compression chamber and a rebound chamber in a housing and separated by a piston. The valve has an orifice component and a blocker component, one of which has a permanent magnet, and the other of which has a magnetically permeable material. Upon the application of sufficient fluid pressure, the blocker component is forced away from the orifice component, despite the magnetic bias that tends to attract the two structures. Because the magnetic force decreases as the two components are spaced farther apart, the shock absorber has excellent performance characteristics. Alternatively, a mechanical spring urges the blocker closed, and magnetic attraction between the blocker and a spaced opener mitigates the increased force of the compressed spring tending to close the valve.Type: GrantFiled: January 6, 2012Date of Patent: May 20, 2014Assignee: Eko Sport, Inc.Inventor: Darek C. Barefoot
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Publication number: 20140051535Abstract: A guard for a chain and chain ring of a bicycle includes a bracket and a bracket extension. The bracket extension has a first end and a second end, and at least the second end is integrally formed. The second end includes a U-shaped configuration configured to house a chain retainer. The bracket and the bracket extension may be secured to one another using two fasteners. The bracket and the bracket extension may rotate relative to one another when only one of the fasteners is attached and may be fixed relative to one another when both of the fasteners are attached.Type: ApplicationFiled: August 15, 2013Publication date: February 20, 2014Applicant: Eko Sport, Inc.Inventors: Ryan K. Cranston, Paul J. Aieta, Scott S. Winans
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Patent number: 8491429Abstract: A combined chain guide and chain ring protector for a bicycle for off-road use having a lower bracket sleeve, a chain ring around which a drive chain extends and a chain ring outer radius. The protector includes a mounting bracket secured at the lower bracket sleeve and a guard mounted thereto. An outer edge of the guard extends beyond the outer radius of the chain ring, thereby protecting a portion of the chain ring from inadvertent impacts. The chain guide extends from the mounting bracket along a path of the drive chain, and preferably includes an upper guide having an inner barrier positioned inboard of the bicycle chain an outer barrier positioned outboard of the inner barrier and an upper barrier positioned above the bicycle chain for preventing the chain from derailing from the chain ring in an upward direction.Type: GrantFiled: July 3, 2012Date of Patent: July 23, 2013Assignee: Eko Sport, Inc.Inventors: Ryan K. Cranston, James K. Rogers
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Publication number: 20130161138Abstract: A shock absorber having a valve controlling the flow rate of fluid between a compression chamber and a rebound chamber in a housing and separated by a piston. The valve has an orifice component and a blocker component, one of which has a permanent magnet, and the other of which has a magnetically permeable material. Upon the application of sufficient fluid pressure, the blocker component is forced away from the orifice component, despite the magnetic bias that tends to attract the two structures. Because the magnetic force decreases as the two components are spaced farther apart, the shock absorber has excellent performance characteristics. Alternatively, a mechanical spring urges the blocker closed, and magnetic attraction between the blocker and a spaced opener mitigates the increased force of the compressed spring tending to close the valve.Type: ApplicationFiled: February 22, 2013Publication date: June 27, 2013Applicant: Eko Sport, Inc.Inventor: Eko Sport, Inc.
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Publication number: 20130099557Abstract: An axle assembly (310) has a longitudinal axis and first and second ends, the axle assembly configured for rotatably mounting a wheel and hub assembly on an axle portion of the axle assembly, the axle portion located between the first and second ends, the axle assembly configured for affixing to first and second structural members (301, 302), at least one of the structural members (302) comprising a substantially closed bore orifice (306) wheel mounting point or dropout, said dropout having a first side configured for the axle portion to extend therefrom when said axle assembly (310) is fixed to said point and a second side, the axle assembly (310) comprising a first fixing means (309) at the first end for releasably fixing the axle assembly (310) to the first structural member (302) and a second fixing means (311) at the second end for releasably fixing the axle assembly (310) to the second structural member (301).Type: ApplicationFiled: November 9, 2012Publication date: April 25, 2013Applicant: EKO SPORT, INC.Inventor: Eko Sport, Inc.
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Patent number: 8382134Abstract: An axle assembly (310) has a longitudinal axis and first and second ends, the axle assembly configured for rotatably mounting a wheel and hub assembly on an axle portion or the axle assembly, the axle portion located between the first and second ends, the axle assembly configured for affixing to first and second structural members (301, 302), at least one of the structural members (302) comprising a substantially closed bore orifice (306) wheel mounting point or dropout, said dropout having a first side configured for the axle portion to extend therefrom when said axle assembly (310) is fixed to said point and a second side, the axle assembly (310) comprising a first fixing means (309) at the first end for releasably fixing the axle assembly (310) to the first structural member (302) and a second fixing means (311) at the second end fog releasably fixing the axle assembly (310) to the second structural member (301).Type: GrantFiled: June 8, 2005Date of Patent: February 26, 2013Assignee: Eko Sport, Inc.Inventors: Simon Charles Bartlett, Nicholas Andrew Hart
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Publication number: 20120270689Abstract: A combined chain guide and chain ring protector for a bicycle for off-road use having a lower bracket sleeve, a chain ring around which a drive chain extends and a chain ring outer radius. The protector includes a mounting bracket secured at the lower bracket sleeve and a guard mounted thereto. An outer edge of the guard extends beyond the outer radius of the chain ring, thereby protecting a portion of the chain ring from inadvertent impacts. The chain guide extends from the mounting bracket along a path of the drive chain, and preferably includes an upper guide having an inner barrier positioned inboard of the bicycle chain an outer barrier positioned outboard of the inner barrier and an upper barrier positioned above the bicycle chain for preventing the chain from derailing from the chain ring in an upward direction.Type: ApplicationFiled: July 3, 2012Publication date: October 25, 2012Applicant: EKO SPORT, INC.Inventors: Ryan K. Cranston, James K. Rogers
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Patent number: 8235849Abstract: A combined chain guide and chain ring protector for a bicycle for off-road use having a lower bracket sleeve, a chain ring around which a drive chain extends and a chain ring outer radius. The protector includes a mounting bracket secured at the lower bracket sleeve and a guard mounted thereto. An outer edge of the guard extends beyond the outer radius of the chain ring, thereby protecting a portion of the chain ring from inadvertent impacts. The chain guide extends from the mounting bracket along a path of the drive chain, and preferably includes an upper guide having an inner barrier positioned inboard of the bicycle chain an outer barrier positioned outboard of the inner barrier and an upper barrier positioned above the bicycle chain for preventing the chain from derailing from the chain ring in an upward direction.Type: GrantFiled: August 29, 2008Date of Patent: August 7, 2012Assignee: Eko Sport, Inc.Inventors: Ryan K. Cranston, James K. Rogers
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Publication number: 20120160622Abstract: A shock absorber having a valve controlling the flow rate of fluid between a compression chamber and a rebound chamber in a housing and separated by a piston. The valve has an orifice component and a blocker component, one of which has a permanent magnet, and the other of which has a magnetically permeable material. Upon the application of sufficient fluid pressure, the blocker component is forced away from the orifice component, despite the magnetic bias that tends to attract the two structures. Because the magnetic force decreases as the two components are spaced farther apart, the shock absorber has excellent performance characteristics. Alternatively, a mechanical spring urges the blocker closed, and magnetic attraction between the blocker and a spaced opener mitigates the increased force of the compressed spring tending to close the valve.Type: ApplicationFiled: January 6, 2012Publication date: June 28, 2012Applicant: EKO SPORT, INC.Inventor: Darek C. Barefoot
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Patent number: RE44379Abstract: A chain ring protector having a substantially planar mounting bracket operably secured to the bottom bracket sleeve of a vehicle with a durable semi-circumferential guard extending therefrom is disclosed. The durable guard has a substantially arcuate outer edge sized to approximate the outer diameter of a chain ring, and it is operably secured to the planar mounting bracket such that the outer edge extends slightly beyond the outer diameter of the portion of the chain ring extending below the bottom bracket sleeve.Type: GrantFiled: January 22, 2008Date of Patent: July 16, 2013Assignee: Eko Sport, Inc.Inventor: James K. Rogers
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Patent number: RE45508Abstract: A chain ring protector having a substantially planar mounting bracket operably secured to the bottom bracket sleeve of a vehicle with a durable semi-circumferential guard extending therefrom is disclosed. The durable guard has a substantially arcuate outer edge sized to approximate the outer diameter of a chain ring, and it is operably secured to the planar mounting bracket such that the outer edge extends slightly beyond the outer diameter of the portion of the chain ring extending below the bottom bracket sleeve.Type: GrantFiled: June 6, 2011Date of Patent: May 5, 2015Assignee: Eko Sport, Inc.Inventor: James K. Rogers