Abstract: A double-slide ski which can be assembled and disassembled and, if required, shortened, comprising a front slide, and a rear slide aligned to the previous one; the two slides are connected by a tubular arm linked to the front slide and rigidly connected to the rear slide by a sleeve element fastened at the front end of the rear slide, in which the tubular arm is threaded and than blocked in a disengageable manner into the sleeve element with the protruding end of the arm, resting on a rear support pad.

Abstract: An interconnecting joint for connecting one end of a first planar section to one end of a second planar section, each section end has a generally similar cross-sectional dimension at the interconnected ends. A longitudinally extending keyway in the first planar section has inwardly and downwardly angled sidewalls. A longitudinally extending key in the second planar section also has inwardly and downwardly angled sidewalls. The inwardly and downwardly angled sidewalls of the key matingly engage the angled sidewalls of the keyway when connected. Pins can be inserted into the angled and transverse bores for added stability.

Abstract: A length-adjustable short ski for mounting on a boot. The ski has a sole-receiving portion and a heel-receiving portion. Each of these portions has a platform, the heel platform overlapping the sole platform, and the platforms are interconnected by tongue-and-groove joints allowing their relative sliding displacement and holding the portions in assembled condition, the grooves and tongues projecting downwardly from the platforms. Once the sole and heel portions have been set to the desired length of the ski, they are locked together. For this purpose, the sole end of the heel platform has a resilient tongue with a pair of ribs projecting downwardly and locking into two of a plurality of locking notches formed in the underlying sole platform.

Abstract: A floating hinge of the type which is composed of a lower member and an upper member each having a surface face and a channel including a pair of guideways located at their distal ends. A first arm and a second arm are employed to connect the upper member and the lower member and to provide movement of the members between an open position and a closed position. The first arm has a fixed end pivotably fixed to the lower member and a sliding end pivotably and slidably fixed to the upper member. The second arm has a fixed end pivotably affixed to the upper member and a sliding end pivotably and slidably fixed to the lower member. The sliding ends of the arms are pivotably and slidably affixed to their respective upper or lower member by a pin engaging an eccentrically fixed orifice of a pair of floating hinge slides fitted within the guideways of the channels of the upper and lower members. Means can be used to secure the upper member to the lower member when the hinge is in the closed position.

Abstract: A ski includes at least two sections interconnectible end-to-end, one section having a recess sunk in an end portion thereof and the other ski section having a tongue projecting from an end portion thereof, the recess and tongue shaped to closely interfit when the ski sections are assembled, end-to-end, thereby to provide a full length ski, there being structure to positively and releasably interconnect said end portions in assembled condition. A method of forming the ski assures tight interfit of the recess and tongue; and the tongue cannot be inadvertently pulled from the recess.

Abstract: A ski with increased torsional stiffness while of normal flexural strength. A pair of substantially rigid rectilinear members that are stiff in torsion, are attached to the top of the ski by pivoted mounts that are rigidly secured to the ski. Two mounts lie to the rear of the ski's binding area, and two mounts lie in front of the binding area. The rigid members are mounted longitudinally of the ski, and the pivoting is transverse thereto. One mount of each pair of mounts is directly pivoted to its rigid member, while the other mount has an intermediate member pivoted transversely to the ski and also transversely pivoted at a point spaced therefrom to its rigid member.

Abstract: A pair of plates each having an internally threaded boss in its base and upturned flanges along its sides are fixed to the upper surface of adjacent segments of a segmented ski. A pair of lips formed on a rigid slide bracket loosely engage axially aligned lips formed on the flanges. A resilient shim is interposed between the lips on the slide bracket and those on the flanges. A pair of screws carried by the slide bracket and registering with the threaded bosses secure the slide bracket to the plates, thereby rigidly joining the ski segments.

Abstract: A collapsible ski skate is provided with front and rear portions each having ends pivotally connected by means of first and second pairs of parallel strips with the first pair connected to the ends of the second pair of strips with the second pair of strips being pivotally connected to a spindle member and pairs of complementary bevel surfaces on the respective front and rear portions of the skate which interengage when the skate is fully unfolded.

Abstract: A ski includes at least two sections interconnectible end-to-end, one section having a recess sunk in an end portion thereof and the other ski section having a tongue projecting from an end portion thereof, the recess and tongue shaped to closely interfit when the ski sections are assembled, end-to-end, thereby to provide a full length ski, there being structure to positively and releasably interconnect said end portions in assembled condition.

Abstract: A portable pair of skis may be packed in a small case for convenient storage and carrying. In one embodiment each ski is readily disassembled into two pieces, each ski piece having an end plate which mates with the end plate of the other ski piece. An assembled ski, which will function as originally designed and intended, comprises a bottom joining plate, which spans the two pieces, having four posts which are fixed to the bottom joining plate and which protrude through holes in the ski pieces and a top plate securing nuts, nut bearing plates and a removable over-center cam-action fastener which joins and applies tension to the two adjacent posts at the end plates. In another embodiment, the bottom plate is hinged and permanently fastened to the two ski pieces and two posts, which are fixed to the hinge, protrude through holes in the ski and the top plate. A removable over-center cam-action fastener is removably connected to the two posts via the grooved securing nuts.

Abstract: A separable ski with an interconnecting joint having no snow contacting surface. The joint includes a female connector having an internally grooved socket which receives the tongue of a male connector. An overcenter cam toggle lock carried on the male connector engages a latch hook on the female connector and resides within the dimensions of the ski to securely lock together the separable portions of the ski.

Abstract: A multi-portion ski fitted together with numerous shaped two-part metal coupling devices one part, usually forward, has two or more threaded metal ferrels protruding upward into which metal screws are fastened. The bottom plate on the connection portion slips over the ferrels forming a tight fit. The top plate, of about one half the size, adjustably locks the bottom plate into place by interacting with slots in the sides of the ferrels. An adjustable screw controls the tension of the locking portion of the coupling device which should always tightly lock the portions together without deformation of parts.

Abstract: For taking up less space when not in use, a ski is designed with a folded joint between its ends. For locking the front and back parts of the ski in the in-line condition ready for use, it is possible to have a top part acting as a splint which is bolted, for example, to the inner ends of the two ski parts, possibly between two heel-pieces on top of the ski parts. As a further possible design, the system for locking the ski parts in the in-line position, two links with a toggle function may be used or the top face of the two ski parts may have a female guide into which the top part is slipped. As a further possible locking system, the two ends of the ski parts nearest each other are designed with a hollow into which a locking core-piece with side headers acting as teeth is placed and which is kept in position by a metal cover plate on top of it.

Abstract: A sectional ski composed of a forward and a rear section which interlock forward of the boot supporting region of the ski. The sections, preferably made of fiberglass, have male and female coupling members composed of aluminum or other lightweight but strong metal, molded as an integral part of the respective sections. The front coupling member, serving as the rear portion of the front section, consists of a recessed area which also houses a pair of eccentrically mounted cams. These cams engage and disengage the interlocking surfaces of cam slots in both sides of the male lock insert which serves as the front portion of the rear section of the ski. As the two sections are slidably engaged, the cams draw the coupling members together laterally and lock them into an integral unit.

Abstract: A ski construction for cross-country skiing is provided including front and rear tandem ski sections pivotally joined together by an offset hinge at their adjacent ends for relative angular displacement about a transverse axis closely adjacent the undersurfaces of the sections between predetermined first positions with the undersurfaces substantially coplanar and variable second positions with the longitudinal undersurfaces defining an included angle greater than 180.degree.. Spring structure is operatively connected between the sections for yieldingly biasing the sections from the variable second positions toward the predetermined first positions and is in the form of a straight structural brace bracing the ski sections against angular displacement toward the second positions. The spring must be laterally deflected intermediate its opposite ends from the static brace defining straight position thereof to allow angular displacement of the ski sections toward the variable second positions.

Abstract: A shopping cart for carrying groceries between a store and a persons home, and which includes snow runners which are movable between a stored away and utility positions so that in normal use the cart rides upon its wheels, and during winter snow and ice it travels upon the runners, each runner including a wear plate for sliding on the ice or snow surface and a flange along each side of the wearplate through which the cart axle extends for attachment of the runner to the cart.

Abstract: This invention is a collapsible ski, wherein the ski is broken down into two parts, and wherein the two parts are so joined together as to maintain the appropriate strength and flex characteristics of the ski, particularly with appropriate reference to the proportioning of the ski so as not to destroy its characteristics and to maintain the appropriate proportions for maximum ski performance. A special, quick disconnect means is used to hold the ski parts together when desired or to break them down when desired.

Abstract: A sectional ski having first and second ski sections with a first coupling member having a generally bar-shaped portion secured in endwise relation in a slot in the first ski section with the enlarged portion of the coupling member being contoured to form a part of the boot supporting region, the second ski section having a similarly configured coupling member secured thereto in endwise relation with the enlarged portions of the first and second coupling members having tapered tongue and groove portions matingly co-acting for locking the ski sections together.

Abstract: The invention relates to a separable or foldable ski. The ski has separate sections pivotally joined together. Located at the joint is a coupling arrangement by means of which the corresponding section may be joined together. In addition, a stabilizing device is provided to join and stiffen the ski in the extended position in order to provide desirable rigidity and resiliency therein.