Abstract: A catamaran for a wheelchair has two parallel pontoons secured abeam a bow beam and a wheelchair engaging framework for selective attachment and submersion of a wheelchair in water between the pontoons behind the bow beam in use. The catamaran is able to engage a wheelchair in a simple and convenient manner for recreational water sport use by those of limited mobility.

Abstract: A light tower assembly configured to rotate a light section from a first to a second position. In various embodiments, the light tower assembly comprises (a) a primary boom extending vertically from a base, (b) a light array boom supporting a light section on a frame rotatively mounted to the primary boom wherein the light array boom rotates around an axis of rotation, (c) a mounting assembly rotatively mounting the light array boom to the primary boom, and (d) a linear actuator assembly connected to the primary boom and the light array boom being configured to rotate the light array boom in one direction when the linear actuator extends and configured to rotate the light array boom in an opposite direction when the linear actuator assembly retracts.

Abstract: A mobile lighting device is disclosed with extendable boom sections. The boom sections are stored in a horizontal position and then pivot to a vertical position before being extended upward. A light section is positioned at the uppermost end of the last extendable boom section. A variety of safety features are also disclosed.

Abstract: A light tower assembly configured to rotate a light section from a first to a second position. In various embodiments, the light tower assembly comprises (a) a primary boom extending vertically from a base, (b) a light array boom supporting a light section on a frame rotatively mounted to the primary boom wherein the light array boom rotates around an axis of rotation, (c) a mounting assembly rotatively mounting the light array boom to the primary boom, and (d) a linear actuator assembly connected to the primary boom and the light array boom being configured to rotate the light array boom in one direction when the linear actuator extends and configured to rotate the light array boom in an opposite direction when the linear actuator assembly retracts.

Abstract: A mobile lighting device is disclosed with extendable boom sections. The boom sections are stored in a horizontal position and then pivot to a vertical position before being extended upward. A light section is positioned at the uppermost end of the last extendable boom section. A variety of safety features are also disclosed.

Abstract: The stroller having wheels with integral skis is a stroller that can be rolled on wheels or pushed on skis. The skis are integral to the stroller can may be deployed by pulling a handle at the bottom rear of the stroller. Pulling the handle causes a first cable to rotate a distribution bar which causes a second cable and a third cable to be pulled. Pulling the second cable causes rotation of the front axle, which pivots the front skis into position below the front wheels. Pulling the third cable causes rotation of the rear axle, which pivots the rear skis into position below the rear wheels. The handle may be placed into a catch to hold the skis in the deployed position. When the handle is released, a torsion spring in each wheel may cause the skis to return to their positions above the wheels.

Abstract: Device for manually lifting a load with a lever for a cart, suitcase and the like, making it easier to ascend and descend staircases and various obstacles, said device comprising two parts:—a first part comprising: a frame (1) secured to wheels (2), the wheels (2) and the handles (3) being fixed to the frame (1),—a second part comprising: a load support (4) secured to wheels (5), the wheels (5) and a load (12) being mounted in a fixed manner on the load support (4), the second part being able to slide with respect to the first part by the action of a telescopic lever arm (10) in order to ascend a step of a staircase in two phases, the telescopic lever arm (10) being fixed to the handles (3) by an articulation (9), a second articulation (8) connecting the telescopic lever arm (10) to a transmission (6) which is in turn connected by a third articulation (7) to the load support (4) of the second part.

Abstract: Cart apparatuses and related methods are described that are configured to traverse uneven terrain while carrying heavy loads such as game animals or equipment. In one example, the cart has a frame that has a handle structure and at least one cargo support portion. At least one wheel support assembly is configured to pivot around an axle connected to the frame. A first wheel and a second wheel may also be included, with the first and second wheels each being pivotable relative to the at least one wheel support assembly. The first wheel may have a first axis of rotation offset from and parallel to the axle, and the second wheel may have a second axis of rotation offset from and parallel to the axle. These carts and methods may make travel through uneven terrain and wilderness areas faster and more conveniently for outdoorsmen.

Abstract: A combination wheelchair-walker having an upper frame; a lower frame comprised of two arc-shaped members, in which each arch-shaped member is configured to extend from the front of the device to the back of the device, each of the two arc-shaped members having a front end and a rear end; two front wheels; two rear caster wheels, each of which is attached to the rear end of one of the two arc-shaped members; and two skids, each of which is attached to the front end of one of the two arc-shaped members. The upper frame is configured to be detached from the lower frame by unlocking four retention pins and lifting the upper frame off of the lower frame.

Abstract: A security enhancement to IPSec processing is achieved by changing the algorithms used at each re-key after expiration or termination of a Security Association session between two peer nodes. The solution enables an Internet Key Exchange to negotiate multiple algorithms to ensure that every renewed IPSec Security Association has a different algorithm combination, thereby making attempts at decryption by an attacker more difficult.

Abstract: A wheelchair suspension includes a frame, a pivoting assembly, at least one front caster, and at least one rear caster. The pivoting assembly has a first link pivotally coupled to the frame member, a second link pivotally coupled to the frame member, a drive assembly fixedly connected to a first end of the first link, and a third link pivotally connected to the first link and pivotally connected to the second link. The drive assembly causes downward pivotal movement of the first end of the first link and upward pivotal movement of a second end of the first link. The upward pivotal movement of the second end of the first link causes the second link and the caster assembly to undergo upward movement.

Abstract: The invention provides a bike with wheels and skis that can be used to ski on the bike downhill in snow and other surface conditions. The bike can also be used to travel on many different surface conditions.

Abstract: A shopping cart wheel ski device facilitates movement of a shopping cart over a surface. The device includes a plate having a bottom surface. An aperture extends through the plate. Each of a pair of spaced arms is coupled to and extends upwardly from the plate. Each arm is configured for engaging a shopping cart wheel such that an outer perimeter surface of the shopping cart wheel extends through the aperture.

Abstract: A device allowing positioning of wheels of a snowmobile when skis leave a snowy path to continue on a road. The device comprises at least two parallel wheels positioned near each ski, a pair of cylinders placed in connection with each wheel, and controlled by a control box by a driver activating pistons to move the wheels from an upward position to a downward ground position. The upward position corresponds to wheels elevated over the ski when the piston is contracted; and the downward position corresponds to wheels in touch with the ground when the piston is extended. Means of clutch move horizontally the wheels to an external position. A spike located on an arm which supports a wheel is positioned to scratch ground ice for creating a mist when a wheel is in a scratching position.

Abstract: An ice skate blade assembly comprising: (a) an ice skate blade comprising first and second hooks projecting upwardly; (b) a blade holder having a bottom portion having a longitudinal groove extending therealong for receiving the upper edge of the ice skate blade and wherein the bottom portion further defines a recess extending upwardly from the longitudinal groove for receiving the first hook; and (c) a single actuator having a wall accessible by a finger of a user, a resilient portion having an end wall facing a section of the inner surface of the second pedestal and a base with an inner wall and a bottom wall having an upper surface, an end and a bottom surface, wherein the inner wall and the bottom wall define therebetween a channel opens to the bottom aperture for receiving the second hook.

Abstract: A portable angler cooler apparatus includes two skis removably connected to a bottom-most circumferential edge of two wheels such that the wheels may remain elevated above a ground surface during transportation. A handle is pivotally coupled to a proximal end of the cooler such that the skis are removably connected to the handle after the skis are detached from the wheels. Each of the skis may have a pair of spring-loaded clips mated to opposed longitudinal edges of each wheel respectively so as to be selectively biased between tensioned and equilibrium positions when engaged and disengaged from each of the wheels and the handle respectively. A T-bar locks selected ones of the compartments at a closed position to prohibit premature disengagement from the cooler during transport.

Abstract: An assembly and method for adapting a baby stroller to better travel over unstable ground, such as sand. A sledge is provided that has a top surface and a bottom surface. The bottom surface is flat with a beveled front end that enables the sledge to be easily pulled over sand or mud. Retention features, such as semi-cylindrical depressions, are formed in the top surface of the sledge. The retention features enable a baby stroller to be placed atop the sledge without rolling off. Once the wheels of the stroller are attached to the sledge, the sledge can be pulled through sand and mud more easily. The sledge may be supported by wide wheels to help the sledge roll over unstable ground. Furthermore, the sledge may be collapsible so that it can be easily stored when not in use.

Abstract: The beach caddy is a bin for carrying items to a selected beach location that is provided with runners for sliding over loose soils and sand, and with retractable wheels for rolling over hard or paved surfaces. A drawstring netting is provided over the bin for keeping items in the bin from falling out when the caddy is in tow. Hooks are provided at the top of the bin for carrying beach chairs on the side of the bin. A bungee cord is tied around the bin for securely holding the chairs in the hooks to the side of the bin.

Abstract: A sled device for permitting transportation of a person and cargo over a variety of surfaces includes a sled including a bottom wall and a perimeter wall that extends upwardly from the bottom wall to define a receiving space of the sled to receive the person and cargo. The bottom wall is slidable along a soft support surface. A front wheel assembly is rotatably coupled to the sled and is rotatable between a deployed position and a stowed position. The front wheel assembly engages and rolls along a hard support surface when the front wheel assembly is in the deployed position. A plurality of rear wheel assemblies is pivotally coupled to the sled and each is pivotable between a lowered position and a raised position. The rear wheel assemblies engage and roll along the hard support surface when the rear wheel assemblies are in the lowered position.

Abstract: A wheeled cart, such as a shopping cart, has ski elements on the wheels thereof. The ski elements can be moved between stored and use positions.

Abstract: A typically one-rider non-powered sports/recreational vehicle has a main body that can be easily converted between a wheeled coaster-wagon configuration and a snow-sled configuration with runners. Typically there are four wheels or four runners: two at front, steerable from a handlebar, and two fixed at rear. For braking in the coaster-wagon configuration, a pair of brake shoe pads, attached to the handlebar, press against the front tires to act as brake shoes when the handlebar is twisted radially via a pair of user handgrips. In the snow-sled configuration, a braking panel, attached centrally on the handlebar, moves downwardly to brake by engaging oncoming snow. In normal use as a coaster or sled, when not braking, this braking panel is nested in an unobtrusive location immediately beneath the front of the main body platform, retained there by spring action that also provides braking hold-off in the coaster-wagon configuration.

Abstract: A wide ski-like apparatus is provided that can be easily and quickly attached to the axle, or axles, of the larger sized icehouses and trailers in common use today. This is accomplished by the use of a ski-like apparatus that is attached to a wheel rim that corresponds in size and lug pattern to existing rims. A second embodiment attaches directly to the wheels of the trailer or icehouse. The use of skis on snow covered or icy surfaces reduces the amount of friction created by movement of the icehouse and thus, makes it easier to move it into position on the lake or river's frozen surface.

Abstract: Apparatus, method and computer program product are provided for digitally processing an encrypted data stream scrambled, for example, according to content scrambling system (CSS) technology. This digital processing insures against communication of clear data within the computer system from a central processing unit (CPU) to any accessible structure, such as memory or a system bus. Descrambling of the (CSS) scrambled data stream occurs within a module executing on the CPU, which is followed by reencryption of the data prior to transfer from the CPU. By so processing the data, integrity of copyrighted material is maintained, while allowing for software descrambling of the CSS encrypted data stream. Various techniques for establishing the encryption/decryption algorithm pair employed are described. Decryption of the re-encrypted data can occur at a receiving software module and/or a receiving hardware device, such as a decoder.

Abstract: Apparatus, method and computer program product are provided for digitally processing an encrypted data stream scrambled, for example, according to content scrambling system (CSS) technology. This digital processing insures against communication of clear data within the computer system from a central processing unit (CPU) to any accessible structure, such as memory or a system bus. Descrambling of the (CSS) scrambled data stream occurs within a module executing on the CPU, which is followed by re-encryption of the data prior to transfer from the CPU. By so processing the data, integrity of copyrighted material is maintained, while allowing for software descrambling of the CSS encrypted data stream. Various techniques for establishing the encryption/decryption algorithm pair employed are described. Decryption of the re-encrypted data can occur at a receiving software module and/or a receiving hardware device, such as a decoder.

Abstract: A wheeled carrier suitable for carrying diverse articles on sandy terrain. The carrier has a body forming an upwardly open principal cargo receptacle, a closed second receptacle, upwardly oriented openings for carrying cups, horizontally disposed tubular openings for carrying rolled papers and the like, external pockets formed from flexible material, a collapsible carrying rack, and a collapsible towing handle. The principal receptacle has a seat belt for securing a child therein. The carrier has four wheels supported on brackets and axles suspended beneath the body. Each wheel has an associated skid pivotally supported on the axle supporting its associated wheel. Each skid is configured in the manner of a ski, for assisting the carrier in negotiating ridges and similar obstructions present in sandy terrain.

Abstract: A skid attachment for a carrying cart has an arcuate cross-section engageable with a pair of wheels at the front of the cart, and is held in position by the engagement of an edge of the attachment with the underside of the frame of the cart as forward motion of the cart is begun. The wheels rotate about the inner periphery of the attachment during this preliminary movement, in which the attachment simply rolls along the ground a few inches until the contact with the frame is made.

Abstract: Each of the pair of elongated skis circumscribe a pair of upwardly facing wheel-engaging wells at opposite fore and aft ends thereof, for receiving and containing a pair of fore and aft registering wheels from both axles of a two axle pushchair. A pair of elongated elastic cables are each anchored at both ends thereof to front and rear portions of a corresponding ski intermediately of the wells thereof. A pair of hooks are each slidingly carried along a corresponding elastic cable and releasably interconnect the elastic cable to the pushchair frame in such a way that the corresponding ski is movable between a first, operative, ground-engaging position, in which each pair of fore and aft registering wheels engage a corresponding ski well and are biased thereagainst under the resiliency of the elastic cable, and an inoperative, ground-clearing position, in which the ski releases the corresponding registering fore and aft wheels and extend generally above the latter.

Abstract: The flexible cargo container of this cart partially deflects inside-out as the cart truss supporting it changes orientation pivoting on wheels rotatably mounted at the aft lower extremity of downwardly projecting support struts to serve as a chair. Leg supports providing static stability are pivotably mounted to extend forward thereby resisting tipping moments about the wheel axle with payload located intermediate thereto. Rotation of the forward end of the cart upwardly and rearwardly brings the rearward upper connect strut in contact with the support surface exposing the underside of the flexible container inverted to concavity, resulting in a chair of supine positioning. Support struts making up the truss fold about pivotable connections yielding a non-use flat geometry for storage. Snap releasable interconnections dissociate struts from the truss in further disassembly.

Abstract: Structurally integrated equipment is selectively, individually or conjointly detachably attachable to a three-wheeled vehicle for preventing rearward tipover, carrying cargo, rendering the vehicle waterborne, enhancing travel over snow or providing power takeoff. Supports extending from the framework of the vehicle are adapted to receive and retain with quick disconnect fittings frame elements of each of the equipments. The frame elements may be adjustable to accommodate load variations and variances of the surface traversed.

Abstract: A cart for use on a bare surface or a snow covered surface provided with a pair of wheels journaled at opposite ends of an axle to engage the bare surface and a pair of depending skis pivotally mounted between the wheels on the axle for engaging a snow covered surface, the radius of the wheels being between one-half and three inches greater than the distance between the axle and the load carrying surface of the skis.

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: A shopping cart having wheels is also provided with an attachment having skis allowing the same to be pulled over snow or other soft surfaces. The attachment comprises a pair of skis movable between a sliding position and a stowed position whereby the shopping cart may travel over snow or sand.