Stefan T Cottle

54010381, Mar 28, 1995

Aug 5, 1994

8/286166

David G. Peck - Falls Church VA
Stefan T. Cottle - Falls Church VA

A63C 1714
A63C 1706

280 112

A roller skate with in-line wheels employs a brake disc capable of applying variable resistance to the rotation of the rear wheel. A skater may activate the brake by elevating the toe of the skate bringing a lever arm that is mounted at the rear of the skate and oriented downward into contact with the road surface. This contact causes the lever-arm to rotate as toe is elevated. Rotation of the lever arm induces contact between the brake disc and the rotating rear wheel by forcing the disc inward toward the wheel. Rotation of the lever arm and inward movement of the brake disc is opposed by separate spring-type means which return the brake disc and lever-arm to a rest position when skate is level, enabling the rear wheel to spin freely.

61059765, Aug 22, 2000

Jul 10, 1998

9/113189

Stefan Tyson Cottle - Falls Church VA

A63C 1726

280 112

A quick-release axle system for in-line skates employing a disc-braking system providing easy removal of the braking wheel and brake system components for replacement or servicing. Two outer axles located on each side of a wheel provide support and activating means for the components of a disc-braking system. A central axle passing through the outer axles supports the braking wheel, allowing the wheel to rotate freely. Wheel removal is performed by removing the central axle from the outer axles, thus freeing the wheel. The outer axles, carrying components of the disc-braking device, remain attached to the skate frame. Removal of a retainer located on each of the outer axles, allows easy removal of the components of the disc-braking device attached thereto.

53758595, Dec 27, 1994

Aug 26, 1993

8/111935

David G. Peck - Falls Church VA
Stefan T. Cottle - Falls Church VA

A63C 1714

280 112

A roller skate with in-line wheels employs a pair of brake discs capable of applying variable resistance to the rotation of the rear wheel. A skater may activate the brake by elevating the toe of the skate bringing a lever arm that is mounted at the rear of the skate and oriented downward into contact with the road surface. This contact causes the lever-arm to rotate as the toe is elevated. Rotation of the lever arm induces contact between the brake discs and the rotating rear wheel by forcing discs inward toward the wheel. Rotation of the lever arm and inward movement of brake discs is opposed by a separate spring device which returns the brake discs and the lever arm to a rest position when the skate is level, enabling the rear wheel to spin freely.

57527075, May 19, 1998

Jul 24, 1996

8/685626

Stefan T. Cottle - Falls Church VA
David Geoffrey Peck - Falls Church VA

A63C 1714

280 112

A braking system for in-line skates activated by a cuff articulated to a shell that delivers significant braking power to one or more wheels of the skate in precise and evenly applied amounts without the need for difficult toe-up skating maneuvers. Wheel lockup is avoided by conveying braking force evenly to multiple load-bearing wheels. In a single braking wheel configuration, articulation of the cuff manipulates a lever arm rotating about the axle of the rear wheel by means of a rod attached to the cuff on one end and to the lever arm on the other end. Longitudinal movement of the cuff and the attached lever induces lateral movement of brake discs on either side of the rear wheel into contact with brake pad surfaces fixed to the side walls of the braking wheel. Considerable braking power is produced due to the mechanical advantage achieved by the large range of motion of the lever arm moving the brake discs over a relatively short distance. This braking action may be effected on more than one wheel by means of a transfer lever fixed to the rear wheel lever arm on one end, and to lever arms on the additional braking wheels on the other end.