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Publication numberUS3901520 A
Publication typeGrant
Publication dateAug 26, 1975
Filing dateJun 21, 1974
Priority dateJun 21, 1974
Publication numberUS 3901520 A, US 3901520A, US-A-3901520, US3901520 A, US3901520A
InventorsCharles Robert Mcmahan
Original AssigneeRaymond Lee Organization Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 3901520 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

United States Patent McMahan 1 1 Aug. 26, 1975 [54] SKATE 2,559,118 7/1951 Foran 280/1 1123 3,086,787 4 1963 W h 280 11.19 [75] Inventor: Charles Robert McMahan, yo c Shalimar, Fla. FOREIGN PATENTS OR APPLlCATlONS Assignee; The Raymond Lee Organization 836,453 Germany Inc New York NY a pm 703,945 3/1941 Germany 280/7313 interest 801,256 12/1950 Germany 280/713 248,016 1/1948 Switzerland 280/7.l3 [22] Filed: June 21, 1974 21 APPL 4 1 31 Primary ExaminerDavid Schonberg Assistant ExaminerMilton L. Smith Attorney, Agent, or FirmHoward l. Podell [52] US. Cl. 280/113; 280/1l.19; 280/1123 [51] Int. Cl. A63C 17/18 58 Field 01 Search 280/1123, 7.13, 11.22, ABSTRACT 280/1119 A skate shoe which can be fitted with an ice skate bl d f h t f 11 k t References Cited W26; S01 alternately ltted wlt we or our 10 er s a e UNITED STATES PATENTS 1,960,234 5 1934 Eckcls 280/7.13 ux 4 Clams 5 Drawmg SKATE SUMMARY OF THE INVENTION:

My invention relates to a skate shoe which can alternately serve as ice skate, a two-wheel roller skate or a four-wheel roller skate. The frame of the skate shoe accepts an ice skate blade adapter or an adapter mechanism which forms either a four or two wheel roller skate.


The objects and features of the invention may be understood with reference to the following detailed description of an illustrative embodiment of the invention, taken together with the accompanying drawings in which:

FIG. 1 illustrates a perspective view of the invention employed as a two wheel roller skate;

FIG. 2 illustrates a front view of the invention in the form of a two-wheel skate;

FIG. 3 illustrates a side view of the invention in the form of a twowheel skate;

FIG. 4 illustrates a front view of the invention in the form of a four-wheel skate; and

FIG. 5 illustrates a front view of the ice blade adapter.


Turning now descriptively to the drawings, in which similar reference characters denote similar elements throughout the several views, FIGS. 1-3 show the skate adapted to serve as a two-wheel roller skate. A skate shoe 11 is fastened to a sole plate 13 integrally fitted with a center channel flange member 14. Flange member 14 is of the general configuration of an inverted U- section with the opposing walls 15 joined together by reinforcement strip 30, and the free ends 16 of the flange member 14 lying in parallel planes.

Two axles 18 in the form of bolts fasten the two wheels 17 of the skate between channel walls 16 through aligned holes in the bracket 14.

As shown in FIG. 4, the skate 10 may be readily fitted with four skate wheels 17, with each pair of skate wheels 17 mounted on a bolt axle 25 fitted with a spacer which rides between channel walls 16 and two spacers 23, each of which is located between a skate wheel 17 and a channel wall 16.

Alternately all wheels 17 may be removed and an ice blade adapter 27 bolted between walls 16 of channel member 14 as shown in FIG. 5. Adapter 27 is fitted with lateral holes 29 which align with the attachment holes of channel member 14 and is in the shape of a block 28 of rectangular cross-section to which a pro- LII jecting ice skate blade 31 is permanently fastened.

Since obvious changes may be made in the specific embodiment of the invention described herein, such modifications being within the spirit and scope of the invention claimed, it is indicated that all matter contained herein is intended as illustrative and not as limiting in scope.

Having thus described the invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. A skate shoe which may be alternately fitted with either two or four roller skate wheels or with an ice skate blade comprising a shoe, a sole plate fastened to the underside of the shoe which is formed as an open channel member together with a set of attachable roller skate wheels and an attachable ice blade assembly that may be interchangeably fastened to the channel member,

said channel member formed with a flat plate section of the general width of the shoe that is mounted adjacent the underside of the shoe with a flange section integrally joined to each of the opposed lateral sides of the flat plate section, said flange sections each bent at an acute angle to the said flat plate section, with each said flange section bent at its free end to form a support wall section that lies in a plane perpendicular to the plane of the flat plate section, said support wall sections being spaced apart by a relatively uniform distance and fitted with mounting holes through which the axles of skate wheels or bolts fastening the attachable ice blade assembly may be mounted,

said flange sections joined together by a support bar spaced from the flat plate section, oriented with the bar axis generally parallel to the plane of the said flat plate section, which support bar serves to maintain the flange sections and attached support walls in a fixed spaced relation to each other.

2. The combination as recited in claim 1 in which a block fastened to an ice skate blade is fastened between the walls of the channel member.

3. The combination as recited in claim 1 in which two roller skate wheels each rotatably mounted on an individual axle are each fastened by their axles between the walls of the channel member.

4. The combination as recited in claim 1 in which four roller skate wheels, each pair of which are rotatably fastened to an individual axle are mounted by their axles to the channel member so that each wheel is located externally of the channel member, together with a spacer mounted on each axle located between the walls of the channel member.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1960234 *Jul 27, 1932May 29, 1934Eckels Parl OSkate
US2559118 *Dec 10, 1946Jul 3, 1951Foran Roderick FScooter skate
US3086787 *Aug 3, 1960Apr 23, 1963Christine A WycheRoller skate
Referenced by
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US3999772 *Jul 24, 1975Dec 28, 1976Brennan William JRoller skate
US5193827 *Apr 14, 1992Mar 16, 1993O.S. Designs, Inc.Convertible in-line roller skates
US5314199 *Mar 12, 1993May 24, 1994O.S. Designs, Inc.Convertible in-line roller skates
US5372534 *Dec 7, 1992Dec 13, 1994Levy; Richard C.Variable geometry conveyance
US5421596 *Jun 10, 1994Jun 6, 1995Yuh Jou Co., Ltd.Roller skate with convertible wheel configuration
US5437466 *Jul 19, 1993Aug 1, 1995K-2 CorporationIn-line roller skate
US5452907 *Sep 13, 1993Sep 26, 1995K-2 CorporationSkate with adjustable base and frame
US5494304 *Jul 29, 1994Feb 27, 1996Levy; Richard C.Variable geometry roller skates
US5524911 *Jul 26, 1994Jun 11, 1996Cochimin; JimmyConvertible in-line/parallel skates
US5549310 *Jan 10, 1994Aug 27, 1996K-2 CorporationIn-line roller skate with improved frame assembly
US5549331 *Jul 10, 1995Aug 27, 1996Yun; Young W.Inline skateboard
US5620190 *Aug 18, 1994Apr 15, 1997Fisher-Price, Inc.In-line skate
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US5775705 *Jul 25, 1995Jul 7, 1998Cochimin; JimmyConvertible in-line/parallel skates
US5799955 *Jan 30, 1996Sep 1, 1998Iverson; Robert A.Integrally formed in-line skate having flexible boot and stiff frame
US5848796 *Mar 3, 1997Dec 15, 1998K-2 CorporationIn-line roller skate
US6139030 *Aug 23, 1999Oct 31, 2000K-2 CorporationIn-line roller skate
US6152459 *Dec 9, 1998Nov 28, 2000K-2 CorporationIn-line roller skate
US6182980Jun 22, 1998Feb 6, 2001Ronnie SmithIn-line ice skates
US6213479Jun 2, 1998Apr 10, 2001Jimmy CochiminConvertible in-line/parallel skates
US6322088Jun 8, 1999Nov 27, 2001Mattel, Inc.Convertible skate
US6367818Jun 8, 2001Apr 9, 2002K-2 CorporationIn-line roller skate
US6416064 *Dec 9, 1996Jul 9, 2002Brian Lee EvansIndependent suspension vehicle truck for supporting a ground contacting device
US6598888Sep 30, 2002Jul 29, 2003K-2 CorporationIn-line roller skate
US6749203Apr 28, 2003Jun 15, 2004K-2 CorporationIn-line roller skate
US7950676Sep 10, 2004May 31, 2011Easton Sports, Inc.Article of footwear comprising a unitary support structure and method of manufacture
US20040004330 *Jul 2, 2003Jan 8, 2004Robert SmylerTwo-wheeled inline glider skates with handbrake
US20040207164 *May 7, 2004Oct 21, 2004K-2 CorporationIn-line roller skate
US20100301318 *Dec 2, 2010Idemitsu Kosan Co., Ltd.Organic electroluminescent device
US20100301319 *May 27, 2010Dec 2, 2010Idemitsu Kosan Co., Ltd.Organic electroluminescent device
EP0703812A1 *Mar 13, 1995Apr 3, 1996Reuben B. KlamerIntegral multi-function roller skate system
WO1981001359A1 *Nov 17, 1980May 28, 1981G SprengRoller-skate with two pairs of rollers
WO1994020176A1 *Mar 8, 1994Sep 15, 1994O.S. Designs, Inc.Convertible in-line roller skates
WO1996005895A1 *Aug 14, 1995Feb 29, 1996Fisher-Price, Inc.In-line skate
WO1998007480A1 *Aug 20, 1997Feb 26, 1998John Nigel HConvertible in-line roller skate apparatus
U.S. Classification280/7.13, 280/11.231, 280/11.19, 280/11.233
International ClassificationA43B5/16, A63C17/06, A63C17/04
Cooperative ClassificationA43B5/1633, A63C2203/06, A63C17/04, A63C17/226, A63C17/06
European ClassificationA63C17/22D, A63C17/04, A43B5/16M, A63C17/06