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Publication numberUS2153939 A
Publication typeGrant
Publication dateApr 11, 1939
Filing dateAug 10, 1937
Priority dateAug 10, 1937
Publication numberUS 2153939 A, US 2153939A, US-A-2153939, US2153939 A, US2153939A
InventorsSchaupp Ralph Hill
Original AssigneeSchaupp Ralph Hill
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Water ski
US 2153939 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

April 11, 1939. R. SCHAUPP 2,153,939

WATER SKI Filed Aug. 10, 1937 2 Sheets-Sheet 2 k 1 l III I w I 2 g 9 6 f 7 5 7 I #1 L 7 N (P I I 7 7 Inventor Attorneys Patented Apr. 11, 1939 PATENT OFFICE WATER. SKI

Ralph Hill Schaupp, La Fayette, Ind.

Application August 10, 1937, Serial No. 158,407

1 Claim.

The present invention relates to new and useful improvements in water skis and has for one of its important objects to provide, in a manner as hereinafter set forth, a device of this character embodying novel propulsion means.

Another very important object of the invention is to provide a water ski of the character described embodying means operable by the user for steering the device.

Still another very important object of the invention is to provide a Water ski comprising a construction and arrangement which is such that lateral movement in the water will be reduced to a minimum.

A still further important object of the invention is to provide novel means for slidably connecting a pair of skis together.

Other objects of the invention are to provide a water ski of the aforementioned character which will be comparatively simple in construction, strong, durable, reliable, light in weight and which may be manufactured at low cost.

All of the foregoing and still further objects and advantages of the invention will become apparent from a study of the following specification, taken in connection with the accompanying drawings wherein like characters of reference designate corresponding parts throughout the several views, and wherein:

Figure l is a top plan view of the invention.

Figure 2 is a view in vertical longitudinal section, taken substantially on the line 2-2 of Fig. 1.

Figure 3 is a vertical longitudinal sectional View, taken substantially on the line 3-3 of Fig. 1.

Figure 4 is a bottom plan view.

Figure 5 is a side elevational View.

Figure 6 is a view in front elevation of the invention.

Referring now to the drawings in detail, it will be seen that the embodiment of the invention which has been illustrated comprises a pair of duplicate buoyant bodies I of any suitable material which are preferably of substantially the shape shown to advantage in Figs. 1, 4 and 5 of the drawings.

The bodies I are formed to provide substantially flat, straight opposed inner sides 2 having mounted longitudinally thereon removable inclined rods 3 which are detachably secured in position in any suitable manner, as at 4. Loops 5 are provided on the rods 3 for slidably connecting the bodies I together, the inclination of said rods 3 also causing vertical movement of said bodies relative to each other as they are alternately moved forwardly.

The bodies I further include substantially flat, straight outer sides '8 from the upper portions of which lateral wings I project. Hingedly 5 mounted for swinging movement in a horizontal plane on the flat outer sides 6 of the bodies I and beneath the wings I are flaps 8 in the form of plates of suitable material, preferably metal. Suitable stops 9 are provided for limiting the for- 10 ward swinging movement of the flaps 8 at a point substantially at right angles to the bodies I'. The flaps 8 constitute propulsion means and any suitable number of said flaps may be provided.

At an intermediate point the bodies I have formed therein wells or recesses III for the reception of the feet of the user. Mounted for swinging movement in a vertical plane on metallic supports II in the wells III are foot rests l2. The supports I I are secured for rotation in a horizongo tal plane in the wells or recesses I0. Rudders I3 are provided on the rear ends of the bodies I and operatively connected to the foot rests I2 for actuation thereby through the medium of crossed wires, cables or the like I4. It will be observed that the cables I4 are connected, at one end, to the opposite sides of the foot rests I2. The bodies I are formed to provide rearwardly extending, streamlined projections I5 on opposite sides of the rudders I3 which act as guards for said rudders.

It is thought that the operation of the invention will be readily apparent from a consideration of the foregoing. The buoyancy of the bodies I is, of course, sufficient to support the weight of the user on the water. The user places his feet in the foot rest I2 and alternately moves the bodies I forwardly, substantially as when walking. As the bodies I are thus moved forwardly the flaps 8 swing inwardly against the sides 6 for reducing resistance to a minimum but upon the completion of .the forward movement said flaps swing outwardly until arrested by the stops 9 for resisting rearward movement of said bodies I in the water thereby retaining the forward gain made by one of the skis as the other is brought forwardly. As hereinbefore mentioned, the inclination of the rods 3 causes vertical as well as longitudinal movement of the bodies I when the invention is in use. By twisting his legs in a manner to turn the supports I I and the foot rests I2 the user may actuate the rudders I3 in a manner to control the direction of travel.

It is believed that the many advantages of a water ski constructed in accordance with the present invention will be readily understood and although a preferred embodiment of the device is as illustrated and described, it is to be understood that changes in the details of construction and in the combination and arrangement of parts may be resorted to which will fall within the scope of the invention as claimed.

What is claimed is:

A water ski comprising an elongated, buoyant 10 body having a well therein at an intermediate end portion of the body, and means operatively 5 connecting said rudder to the support for actuation thereby when said support is rotated in the Well.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2716246 *Jun 24, 1953Aug 30, 1955James R BillinghamWater ski
US2940090 *Nov 1, 1957Jun 14, 1960Fournier DamienWater skis
US3027576 *Sep 21, 1959Apr 3, 1962Ross Fines SamuelManually propelled water shoes
US3063071 *Dec 8, 1959Nov 13, 1962John Van VorstTraction actuated water skis
US3092855 *Sep 29, 1959Jun 11, 1963Smith John KPaddles for canoes and the like
US3121892 *Apr 24, 1963Feb 25, 1964Plumlee Carl HFloating skis
US3134114 *Aug 29, 1962May 26, 1964Stimm Kean WBuoyant shoes
US3319276 *May 7, 1965May 16, 1967Caryl WeinhagenWater ski construction
US3877409 *Jul 13, 1973Apr 15, 1975Krogseng HelgeWater skis
US3936897 *Sep 21, 1973Feb 10, 1976Schaumann Peter HBuoyant water-walking apparatus
US4117562 *May 2, 1977Oct 3, 1978Schaumann Peter HWater walker
US4129912 *Apr 11, 1977Dec 19, 1978Robinson Walter LAquatic device
US4261069 *Oct 2, 1978Apr 14, 1981Schaumann Peter HWater walker
US4405139 *Jan 5, 1979Sep 20, 1983Kuniaki KawahardBoards for sliding on snow
US4541809 *Jul 9, 1984Sep 17, 1985Schaumann Peter HWater glider assembly
US6764363Jul 22, 2002Jul 20, 2004Wave Walk, Inc.Upright human floatation apparatus and propulsion mechanism therefor
US6871608Nov 18, 2003Mar 29, 2005Yoav RosenTwin hull personal watercraft
US6939187 *Mar 22, 2004Sep 6, 2005Miguel BorrotoPersonal water transport assembly
US7121910Jan 9, 2004Oct 17, 2006Wavewalk, Inc.Upright human floatation apparatus and propulsion mechanism therefor
US8845372Mar 22, 2012Sep 30, 2014Jerome Connelly FarmerStanding watercraft with torso-mounted paddles
US9248890 *Jun 17, 2013Feb 2, 2016Flow Sports, Inc.Standup paddle board system with steering mechanism
US9272761 *Aug 25, 2014Mar 1, 2016Jerome C. FarmerAngular velocity-controlled pontoon propulsion system
US20040112266 *Nov 18, 2003Jun 17, 2004Yoav RosenTwin hull personal watercraft
US20040166748 *Jan 9, 2004Aug 26, 2004Yoav RosenUpright human floatation apparatus and propulsion mechanism therefor
US20130344758 *Jun 17, 2013Dec 26, 2013Flow Sports, Inc.Standup paddle board system with steering mechanism
US20150064993 *Aug 25, 2014Mar 5, 2015Jerome C. FarmerAngular velocity-controlled pontoon propulsion system
DE3440178A1 *Nov 2, 1984May 22, 1986Hubert HelbigWalking-on-water appliance
U.S. Classification441/77
International ClassificationB63B35/81
Cooperative ClassificationB63B35/83
European ClassificationB63B35/83