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Tandem wheeled roller skate

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Publication number
US3900203A
US3900203A US48635974A US3900203A US 3900203 A US3900203 A US 3900203A US 48635974 A US48635974 A US 48635974A US 3900203 A US3900203 A US 3900203A
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Prior art keywords
wheel
wheels
hub
pair
brake
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Expired - Lifetime
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Adolph F Kukulowicz
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Adolph F Kukulowicz
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    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63CSKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00Roller skates; Skate-boards
    • A63C17/04Roller skates; Skate-boards with wheels arranged otherwise than in two pairs
    • A63C17/06Roller skates; Skate-boards with wheels arranged otherwise than in two pairs single-track type
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63CSKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00Roller skates; Skate-boards
    • A63C17/22Wheels for roller skates
    • A63C17/226Wheel mounting, i.e. arrangement connecting wheel and axle mount

Abstract

Tandem wheeled roller skates having braking means operable against the hubs of a pair of the wheels in tandem. When at least two pairs of wheels are mounted in line in tandem a separate brake is mounted on a front pair and another brake is mounted on the rear pair in order that braking pressure can be varied or applied uniformly in unison. The brake can be applied by the wearer of the skate by merely stooping and adjusting the head of a tightening nut.

Description

United States Patent Kukulowicz 1 1 Aug. 19, 1975 [541 TANDEM WHEELED ROLLER SKATE 3,287,023 11/1966 Ware 280/1122 3,823,952 7 1974 K k 1 n 281) 1.2 [76] Inventor: Adolph F. Kukulowicz, m Parkway I H Forest Dr., Apt. 801, Willowdale, Ontario Canada Primary E.\'uminerDavid Schonberg I Axsixlunt blraminer-Milton L. Smith 1 1 Filed? y I974 Artur/my, Agent, or Firm-K. M. Hill Appl. No.: 486,359

[52] US. Cl 280/112; 280/1122 [51] Int. Cl. A63c 17/14 [581 Field of Search .1 280/112, 1122, 11.23, 28()/7.13,11.1BT

[56] References Cited UNITED STATES PATENTS 1,628,559. 5/1927 Showers 2811/1 1.2 UX

2,725,238 11/1955 Day 280/112 3,000,643 9/1961 Levin. 2811/1 1.2

3,008,725 11/1961 Stites 280/112 [57] ABSTRACT Tandem wheeled roller skates having braking means operable against the hubs of a pair of the wheels in tandem, When at least two pairs of wheels are mounted in line in tandem a separate brake is mounted on a front pair and another brake is mounted on the rear pair in order that braking pressure can be varied or applied uniformly in unison. The brake can be applied by the wearer of the skate by merely stooping and adjusting the head of a tightening nut.

1 Claim, 3 Drawing Figures TANDEM WIIICIiLIII) ROLLER SKA'I'F.

The present invention relates to tandem wheeled rol' ler skates. In particular the invention herein relates to an improvement in tandem wheeled roller skates that have for an object of use as sports equipment the par pose of employing them for exercising and strengthen ing the legs.

PRIOR AR'I Prior methods of tightening the wheels have been known but the construction herein contemplates an improvement which allows a wearer to more easily manip' ulate the tightening feature.

It is an object of the present invention to provide in combination with a rigid supporting structure means whereby the resistance to rotation of the wheels or any one of the same may be varied and controlled through the agency of a large handoperable screw and a pair of bearing plates on each pair of wheels as will be more fully explained hereinafter. the construction being such that whether a force is made to bear against free rotation by the tightening to be explained, or whether the wheels are to be allowed to run free. in either case equal rigidity and precision should obtain to the end, that skating may he learned and practised for enjoyment or for exercise with optimum confidence that no loosening or mechanical failure will lessen or interrupt its use.

A further object of the invention is the construction of a tightening means that allows both pairs or either pair of wheels to be easily demohilized by a wearer of the skate while it is on his foot to permit him to easily walk with the skate without the wheels rolling.

With the considerations and inventive objects herein set forth in view, and such others as may become ap parent from consideration of this disclosure and specification. the present invention consists of and is hereby claimed to reside in the inventive concept which is comprised. embodied, embraced or included in any method. construction, arrangement or combination of parts. or new use of any of the foregoing which may herein he exemplified in one or more specific embodiments of such concept. reference being had to the accompanying drawings in which:

FIG. I is a perspective view of the skate of the present invention.

FIG. 2 is an exploded view of one pair of tandem wheels showing the hearing or pressure plates with bolt and tightening knob exploded therefrom.

FIG. 3 is an enlarged cross-sectional view through a pair of tandem wheels on the line 3- 3 of FIG. I. In drawings, like character references designate identical parts in the several figures.

SUMMARY OF THE INVENTION:

In order to first describe briefly the present invention in terms consonant with the accompanying Claims and to identify the parts defined therein. a tandem wheeled roller skate has been made wherein the wheels eollec tively designated II) are arranged in a single file and substantially centrally to the horizontal axis of the skate. the invention being characterized in combining a supporting structure generally designated 12 consisting of a sole plate designated I4 and intended to comprise both the front and heel portions 16 and I8 thereof (FIG. I i and a pair of spaced apart and parallel wheel carrying plates generally designated 20, 2| secured at 22 to the sole plate and projecting substantially at right angles thereto. Wheels II) are each apertured as at 26 to surround the hub 28. A tire 30 is provided on each wheel and is shown in axial cross-section (FIG. 2) to be generally circular with rounded edges for smooth run ning characteristics.

The hub 28 of each wheel I0, projects from the wheel to present a smooth disc shaped surface I3 on either side of; each wheel. liach disc I3 is coplanar with an adjacent plate an inner hub 35 projects out wardly from both sides of each wheel beyond the plane of the outer surface of the discs I3 but less than the distance of the spaced apart plates 20, 2]. Each wheel is mounted on a nut and bolt assembly designated 38, 39 projecting through main hublt'l and inner hub 35. Bolt 39 acts as. the axle for a wheel I0, which is free running thereon.

The invention herein devised comprises a tandem wheeled roller skate 80 having a plurality of wheels I0 arranged in single Iile substantially centrally of and along the length of a foot support platform 70.

The skate has a pair of longitudinally extending spaced apart frame plates 21, 22 projecting downwardly substantially at right angles from the platform 70 and attached thereto to form a rigid structure there with. There is a hub assembly 28 for each wheel It). and a tire 30 surrounds each hub assembly 28. An axle means 39 is provided for each wheel and passes through the hub assembly 28 and through apertures 75, 76 provided through the pair of frame plates 2|, 22. A nut 38 and bolt head 77 are provided to secure each axle between the frame plates with each wheel and hub assembly thereof free running therebetween.

The pressure brake plate SI extends between a pair of the tandem wheels and has at least two annuli formed therein whereby one annuli is fittable over an axle ofone wheel and the other is fittable over the axle of said other pair of wheels to allow the wheels to rotate freely when the brake plate 5| is positioned between the frame plate 2] and the hub assembly 28 of the wheel. A disc surface I3 is formed with hub 28 and extends outwardly of each wheel. surrounding each hub assembly co-planar with the annuli I3 of each brake plate. A large finger-manipulatable nut head 44 is pro vided substantially midway of the brake plate SI between a pair of wheels and is adapted to bear against the plate SI to bend it inwardly against the disc surface I3 of the wheel hub 28 thereby to induce braking pressure to the wheels.

PREFERRED EMBODIMENT The hubs 28 are each provided with the shown ball bearing assembly 42. The annuli S0 in the brake plate SI free running on axle 39 surround hub 36 on each side of each wheel. The screw-threaded set screws 44 have an extension knob 45 internally threaded to mate with bolt 46. The head 47 of bolt 46 and knob 45 both pass freely through the frame plates 20, 21 at apertures 48, 49 respectively.

The inner face of bolt head 47 and the inner face S6 of knob 44 bite into the mid portion of the brake plates SI 6] as shown in FIG. 3 flexing the brake plates as shown. In the flexed position as shown in the drawings the brake plates 51, 6I bear against the wheel hubs I3 at areas 62, 63 and 64. 65 respectively. Although the brake plates SI, 61 are loose between the wheel and the frame plates 21, 22, they remain satisfactorily centered in virtue of the fact that the end extremities of the hub 28 protrude and thereby occupy a portion of the thickness of the brake plates provided by the central hubs 3S surround axle receiving apertures 26, therein as clearly shown in FIG. 2.

From all the foregoing it will be apparent that when the nut 44 is tightened, the brake plates 5|. 6| will move imperceptably toward each other and against the hub disc faces to increase the friction acting therein and such pressure may be varied and controlled considerably according to the extent to which the nut 44 is tightened. The head 44 of the tightening means is made sufficiently large so that a skate wearer could easily stoop to vary the pressure of the brakes against the wheels without removing the skate.

In this way it will readily be appreciated that the present invention provides means whereby the legs of hockey players may be subjected to highly efficacious strengthening exercise and one which is identical with that for which their leg muscles are being strengthened. namely the playing of hockey on saktes.

To avoid the necessity of a wearer of the present invcntion having to change into ordinary street shoes after using the skate he can tighten the nut 44 fully to completely immobilize the wheels and thereby allow him to walk in normal step-by-step fashion as though wearing boots.

In FIG. 1, the platform 70 to which the skate is fitted is the sole of a boot. but the platform could be made with straps and the like to fit the normal shoe or boot of a wearer where the purpose of the skate was to be for mere play rather than as an alternative to ice skates for exercising the legs. A hockey player could use the present invention to keep his legs in shape between hockey seasons regardless of whether there was an ice rink available to him at the time since the skate herein devised can be used on any hard, smooth surface.

Various modifications may be made to the invention described and be within the scope of the concept disclosed. It is intended. therefore. that the foregoing disclosure shall be considered as illustrative of such concept and not as limiting the protection sought to any particular embodiment thereof.

I claim:

I. A tandem-wheeled roller skate having a plurality of wheels arranged in single file substantially centrally of and along the length of a foot support platform comprising in combination:

A pair of longitudinally extending spaced apart frame plates projecting downwardly substantially at right angles from said platform and attached thereto to form a rigid structure therewith;

A hub assembly for each wheel;

A tire surrounding each hub assembly;

An axle means for each whee] projecting through said hub assembly and through aperture provided through said pair of frame plates;

Means to secure each axle between said frame plates with each wheel and hub assembly thereof free running therebetween;

At least one pressure brake plate extending between a pair of said wheels and having at least two annuli formed therein whereby one annuli is fittable over an axle of one wheel and the other is fittable over the axle of said other pair of wheels to allow said wheel to rotate freely with said brake plate positioned between said frame plate and said hub assembly of said wheel;

A disc surface provided outwardly of each wheel surrounding each hub assembly co-planar with the annuli of said brake plate; Means provided substantially midway of said brake plate between said pair of wheels adapted to bear against said plate to bend it inwardly against said disc surface of said wheel hub assembly thereby to induce braking pressure to said wheels.

Claims (1)

1. A tandem-wheeled roller skate having a plurality of wheels arranged in single file substantially centrally of and along the length of a foot support platform comprising in combination: A pair of longitudinally extending spaced apart frame plates projecting downwardly substantially at right angles from said platform and attached thereto to form a rigid structure therewith; A hub assembly for each wheel; A tire surrounding each hub assembly; An axle means for each wheel projecting through said hub assembly and through aperture provided through said pair of frame plates; Means to secure each axle between said frame plates with each wheel and hub assembly thereof free running therebetween; At least one pressure brake plate extending between a pair of said wheels and having at least two annuli formed therein whereby one annuli is fittable over an axle of one wheel and the other is fittable over the axle of said other pair of wheels to allow said wheel to rotate freely with said brake plate positioned between said frame plate and said hub assembly of said wheel; A disc surface provided outwardly of each wheel surrounding each hub assembly co-planar with the annuli of said brake plate; Means provided substantially midway of said brake plate between said pair of wheels adapted to bear against said plate to bend it inwardly against said disc surface of said wheel hub assembly thereby to induce braking pressure to said wheels.
US3900203A 1974-07-08 1974-07-08 Tandem wheeled roller skate Expired - Lifetime US3900203A (en)

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Cited By (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4909523A (en) * 1987-06-12 1990-03-20 Rollerblade, Inc. In-line roller skate with frame
US4943075A (en) * 1989-08-18 1990-07-24 Gates Patrick G Pair of wheeled skate-skis with brakes usable on most terrains
US5048848A (en) * 1987-06-12 1991-09-17 Rollerblade, Inc. In-line roller skate with axle aperture plugs for simplified wheel installation
US5135244A (en) * 1991-04-22 1992-08-04 Wdrm Patent Co. Suspension and braking system for a tandem wheeled skate
US5143387A (en) * 1991-09-03 1992-09-01 Jeff M. Colla Roller skate brake assembly having toe actuator within the boot
US5232231A (en) * 1992-08-12 1993-08-03 Bruce Carlsmith Brake for roller skates
US5249376A (en) * 1992-11-16 1993-10-05 Michael Capria Shoe heel with rollers
US5280931A (en) * 1992-11-20 1994-01-25 Thistle Sports Enterprises, Inc. Roller brake
WO1994006656A1 (en) * 1992-09-23 1994-03-31 Cech Donald E In-line skate braking assembly and method
US5303940A (en) * 1991-04-15 1994-04-19 Jeannette L. Brandner Skate having angularly mounted wheels
US5382031A (en) * 1991-06-11 1995-01-17 Nordica S.P.A. Skate with improved steering capabilities
US5397138A (en) * 1994-01-21 1995-03-14 Mangelsdorf; Gary Braking mechanism for in-line skate
US5468004A (en) * 1993-07-29 1995-11-21 O.S. Designs, Inc. Anti-lock brake for in-line skate
US5470086A (en) * 1994-01-28 1995-11-28 The Hyper Corporation In-line roller skate assembly
US5511805A (en) * 1994-05-12 1996-04-30 Mcgrath; Neal Braking apparatus for use with in-line roller skates
WO1996022138A1 (en) * 1994-01-21 1996-07-25 Gary Mangelsdorf In-line skate
US5549309A (en) * 1995-01-05 1996-08-27 Gleichmann; Darin L. Multi-line in-line roller skate, multi-line in-line roller skate frame
WO1996038210A1 (en) * 1995-05-30 1996-12-05 Mechatronics, Inc. Skate wheel
WO1997003736A1 (en) * 1995-07-14 1997-02-06 First Team Sports, Inc. Adjustable roller brake system
US5620190A (en) * 1994-08-18 1997-04-15 Fisher-Price, Inc. In-line skate
US5630596A (en) * 1995-02-16 1997-05-20 Rudolph; Robert K. Brake device for in-line skates
US5632829A (en) * 1994-12-12 1997-05-27 The Hyper Corporation Pneumatic in-line skate wheel
US5634648A (en) * 1994-06-08 1997-06-03 Nordica S.P.A. Roller skate with improved fit
US5799955A (en) * 1996-01-30 1998-09-01 Iverson; Robert A. Integrally formed in-line skate having flexible boot and stiff frame
US5803466A (en) * 1997-01-09 1998-09-08 Rike Industries, Inc. Toe plate with dual flanges for in-line skate frame
EP0876836A2 (en) 1997-05-09 1998-11-11 Benetton Sportsystem S.p.A. Locking device, particularly for skate wheels
US5855381A (en) * 1994-05-17 1999-01-05 Kirk; Norbert Wheel lock for in-line skates
US5873584A (en) * 1995-01-17 1999-02-23 Rike Inline, Inc. In-line roller skate frame
US5904359A (en) * 1995-05-26 1999-05-18 Nordica S.P.A. Skate with in-line wheels
US5915703A (en) * 1997-01-09 1999-06-29 Rike Industries, Inc. In-line skate axle and related assembly method
US6003882A (en) * 1996-11-14 1999-12-21 V-Formation, Inc. Customizable skate with removable wheel hangers
US6135463A (en) * 1997-01-09 2000-10-24 Rike Industries, Inc. In-line skate with quick release sidewalls and related assembly methods
FR2799384A1 (en) * 1999-10-12 2001-04-13 Europlastica S R L Roller skate comprises two parallel roller structures between which rollers are supported by spindles
US6325394B1 (en) 1997-10-24 2001-12-04 K-2 Corporation Flexing base skate
US20030146587A1 (en) * 2002-02-07 2003-08-07 Tsai-Ming Lo In-line skate
US20030214104A1 (en) * 2002-05-17 2003-11-20 Chuck Chang Roller skate having a safety device
US6666463B2 (en) 1997-10-24 2003-12-23 K-2 Corporation Flexing base skate
US6729628B2 (en) * 2002-03-06 2004-05-04 Alex R. Bellehumeur Brake for inline skates
US6736412B1 (en) 2000-10-04 2004-05-18 K2 Corporation Klop skate having pushing and pulling capabilities
US20040145129A1 (en) * 2003-01-28 2004-07-29 Manuel Polanco Modular roller skate apparatus
US6957830B1 (en) * 1993-11-22 2005-10-25 K-2 Corporation In-line skate frame protector
US20050263968A1 (en) * 2003-01-24 2005-12-01 Chuck Chang Roller skate having a safety device
US20050288133A1 (en) * 2003-05-07 2005-12-29 Elliot Rudell Ball with internal impact detector and an indicator to indicate impact
US20070132201A1 (en) * 2005-12-12 2007-06-14 Bellehumeur Alexander R Vertically reciprocating skate brake
US7419187B2 (en) 1997-10-24 2008-09-02 K-2 Corporation Double klap flex base boot with heel linkage
US20100314845A1 (en) * 2009-06-15 2010-12-16 Mark Croskey Skate brake
US7950676B2 (en) 2003-09-10 2011-05-31 Easton Sports, Inc. Article of footwear comprising a unitary support structure and method of manufacture
US8978835B1 (en) * 2013-03-07 2015-03-17 Jason Mathew Larock Apparatus for controlling the rotational speed of a wheel of a skateboard, skate or similar wheeled device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1628559A (en) * 1926-04-29 1927-05-10 Showers Ernest Sinclair Coaster-wagon brake
US2725238A (en) * 1952-01-29 1955-11-29 Samuel S Day Training-type roller skate
US3000643A (en) * 1958-09-02 1961-09-19 Levin Simon Controllable skate having continuously applied brake
US3008725A (en) * 1959-04-03 1961-11-14 George M Stites Roller skate training device
US3287023A (en) * 1964-07-16 1966-11-22 Chicago Roller Skate Co Roller skate
US3823952A (en) * 1972-05-15 1974-07-16 A Kukulowicz Tandem wheeled roller skate

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1628559A (en) * 1926-04-29 1927-05-10 Showers Ernest Sinclair Coaster-wagon brake
US2725238A (en) * 1952-01-29 1955-11-29 Samuel S Day Training-type roller skate
US3000643A (en) * 1958-09-02 1961-09-19 Levin Simon Controllable skate having continuously applied brake
US3008725A (en) * 1959-04-03 1961-11-14 George M Stites Roller skate training device
US3287023A (en) * 1964-07-16 1966-11-22 Chicago Roller Skate Co Roller skate
US3823952A (en) * 1972-05-15 1974-07-16 A Kukulowicz Tandem wheeled roller skate

Cited By (64)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5048848A (en) * 1987-06-12 1991-09-17 Rollerblade, Inc. In-line roller skate with axle aperture plugs for simplified wheel installation
US4909523A (en) * 1987-06-12 1990-03-20 Rollerblade, Inc. In-line roller skate with frame
US4943075A (en) * 1989-08-18 1990-07-24 Gates Patrick G Pair of wheeled skate-skis with brakes usable on most terrains
US5351974A (en) * 1990-11-05 1994-10-04 Cech Donald E In-line skate braking assembly and method
US5303940A (en) * 1991-04-15 1994-04-19 Jeannette L. Brandner Skate having angularly mounted wheels
US5135244A (en) * 1991-04-22 1992-08-04 Wdrm Patent Co. Suspension and braking system for a tandem wheeled skate
US5382031A (en) * 1991-06-11 1995-01-17 Nordica S.P.A. Skate with improved steering capabilities
US5143387A (en) * 1991-09-03 1992-09-01 Jeff M. Colla Roller skate brake assembly having toe actuator within the boot
US5232231A (en) * 1992-08-12 1993-08-03 Bruce Carlsmith Brake for roller skates
WO1994006656A1 (en) * 1992-09-23 1994-03-31 Cech Donald E In-line skate braking assembly and method
US5249376A (en) * 1992-11-16 1993-10-05 Michael Capria Shoe heel with rollers
US5280931A (en) * 1992-11-20 1994-01-25 Thistle Sports Enterprises, Inc. Roller brake
USRE35493E (en) * 1992-11-20 1997-04-15 Thistle Sports Enterprises, Inc. Roller brake
US5667280A (en) * 1993-05-25 1997-09-16 Mechatronics, Inc. Skate wheel
US5468004A (en) * 1993-07-29 1995-11-21 O.S. Designs, Inc. Anti-lock brake for in-line skate
US6957830B1 (en) * 1993-11-22 2005-10-25 K-2 Corporation In-line skate frame protector
WO1996022138A1 (en) * 1994-01-21 1996-07-25 Gary Mangelsdorf In-line skate
US5397138A (en) * 1994-01-21 1995-03-14 Mangelsdorf; Gary Braking mechanism for in-line skate
US5470086A (en) * 1994-01-28 1995-11-28 The Hyper Corporation In-line roller skate assembly
US5511805A (en) * 1994-05-12 1996-04-30 Mcgrath; Neal Braking apparatus for use with in-line roller skates
US5855381A (en) * 1994-05-17 1999-01-05 Kirk; Norbert Wheel lock for in-line skates
EP0686412B1 (en) * 1994-06-08 1999-02-10 Benetton Sportsystem S.p.A. In-line roller skate with improved fit
US5634648A (en) * 1994-06-08 1997-06-03 Nordica S.P.A. Roller skate with improved fit
US5620190A (en) * 1994-08-18 1997-04-15 Fisher-Price, Inc. In-line skate
US5632829A (en) * 1994-12-12 1997-05-27 The Hyper Corporation Pneumatic in-line skate wheel
US5549309A (en) * 1995-01-05 1996-08-27 Gleichmann; Darin L. Multi-line in-line roller skate, multi-line in-line roller skate frame
US5873584A (en) * 1995-01-17 1999-02-23 Rike Inline, Inc. In-line roller skate frame
US5630596A (en) * 1995-02-16 1997-05-20 Rudolph; Robert K. Brake device for in-line skates
US6375198B1 (en) 1995-05-26 2002-04-23 Nordica S.P.A. Skate with in-line wheels
US5904359A (en) * 1995-05-26 1999-05-18 Nordica S.P.A. Skate with in-line wheels
WO1996038210A1 (en) * 1995-05-30 1996-12-05 Mechatronics, Inc. Skate wheel
WO1997003736A1 (en) * 1995-07-14 1997-02-06 First Team Sports, Inc. Adjustable roller brake system
US5799955A (en) * 1996-01-30 1998-09-01 Iverson; Robert A. Integrally formed in-line skate having flexible boot and stiff frame
US6003882A (en) * 1996-11-14 1999-12-21 V-Formation, Inc. Customizable skate with removable wheel hangers
US5803466A (en) * 1997-01-09 1998-09-08 Rike Industries, Inc. Toe plate with dual flanges for in-line skate frame
US6045143A (en) * 1997-01-09 2000-04-04 Rike Industries, Inc. Toe plate with dual flanges for in-line skate frame
US6082746A (en) * 1997-01-09 2000-07-04 Rike Industries, Inc. In-line skate axle and related assembly method
US6135463A (en) * 1997-01-09 2000-10-24 Rike Industries, Inc. In-line skate with quick release sidewalls and related assembly methods
US5915703A (en) * 1997-01-09 1999-06-29 Rike Industries, Inc. In-line skate axle and related assembly method
US5961130A (en) * 1997-05-09 1999-10-05 Benetton Sportsystem S.P.A. Locking device, particularly for skate wheels
EP0876836A2 (en) 1997-05-09 1998-11-11 Benetton Sportsystem S.p.A. Locking device, particularly for skate wheels
US6325394B1 (en) 1997-10-24 2001-12-04 K-2 Corporation Flexing base skate
US20060038362A1 (en) * 1997-10-24 2006-02-23 K-2 Corporation Flexing base skate
US7419187B2 (en) 1997-10-24 2008-09-02 K-2 Corporation Double klap flex base boot with heel linkage
US6666463B2 (en) 1997-10-24 2003-12-23 K-2 Corporation Flexing base skate
US6921093B2 (en) 1997-10-24 2005-07-26 K-2 Corporation Flexing base skate
US20040135328A1 (en) * 1997-10-24 2004-07-15 K-2 Corporation Flexing base skate
FR2799384A1 (en) * 1999-10-12 2001-04-13 Europlastica S R L Roller skate comprises two parallel roller structures between which rollers are supported by spindles
US6736412B1 (en) 2000-10-04 2004-05-18 K2 Corporation Klop skate having pushing and pulling capabilities
US20040262861A1 (en) * 2000-10-04 2004-12-30 K2 Corporation Klop skate having pushing and pulling capabilities
US20030146587A1 (en) * 2002-02-07 2003-08-07 Tsai-Ming Lo In-line skate
US6729628B2 (en) * 2002-03-06 2004-05-04 Alex R. Bellehumeur Brake for inline skates
US20030214104A1 (en) * 2002-05-17 2003-11-20 Chuck Chang Roller skate having a safety device
US20050263968A1 (en) * 2003-01-24 2005-12-01 Chuck Chang Roller skate having a safety device
US7344143B2 (en) * 2003-01-24 2008-03-18 Lotuskate Sports Industrial Co., Ltd. Roller skate having a safety device
US6880833B2 (en) * 2003-01-28 2005-04-19 Manuel Polanco Modular roller skate apparatus
US20040145129A1 (en) * 2003-01-28 2004-07-29 Manuel Polanco Modular roller skate apparatus
US20050288133A1 (en) * 2003-05-07 2005-12-29 Elliot Rudell Ball with internal impact detector and an indicator to indicate impact
US7950676B2 (en) 2003-09-10 2011-05-31 Easton Sports, Inc. Article of footwear comprising a unitary support structure and method of manufacture
US20070132201A1 (en) * 2005-12-12 2007-06-14 Bellehumeur Alexander R Vertically reciprocating skate brake
US7455305B2 (en) 2005-12-12 2008-11-25 Alex Bellehumeur, Trustee of the Alex Bellehumeur Family Trust dated August 24, 1988 Vertically reciprocating skate brake
US20100314845A1 (en) * 2009-06-15 2010-12-16 Mark Croskey Skate brake
US8336892B2 (en) * 2009-06-15 2012-12-25 Mark Croskey Skate brake
US8978835B1 (en) * 2013-03-07 2015-03-17 Jason Mathew Larock Apparatus for controlling the rotational speed of a wheel of a skateboard, skate or similar wheeled device

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