Abstract: A ballistic body armor and dehumidification system includes a flexible carrier containing a watertight sealed pouch which itself contains a desiccant and a stack of substantially vertical layers of ballistic material whose performance degrades under certain conditions in the presence of moisture. The watertight sealed pouch is mounted into the carrier so as to cover a portion of a user's body. The desiccant is mounted or laminated into the pouch so that either it is, or its effect is, distributed across the ballistic material to uniformly reduce the humidity level within the pouch.

Abstract: A jersey which provides enthusiasts of such sports as baseball and basketball an interchangeable two in one jersey. The jersey allows the wearer to quickly convert the standard jersey into a jersey with long sleeves. The attachable long sleeves are stored in pocket-like enclosures which also have zippers along the jersey sides. The sleeves are attached using a pair of hidden sleeve zippers or a pair of Velcro strips. The sleeve zippers are hidden by an overlap of jersey material to give the appearance of a normal garment when worn as a standard jersey or a converted long sleeve jersey. The Velcro strips are positioned along the outer edge of the arm openings of the basketball jersey. The top portion of the Velcro strip attached to the jersey folds out for easy connection of long sleeves.

Abstract: A garment for a part of the body, and in particular a sport pant, includes an elasticity element, or a number of such elements, disposed on a portion of the garment, while another portion of the garment is free of elasticity elements. As a result, the garment can store energy by elastic elongation under a movement of, for example, a leg. This energy can then be released under a second movement of the leg in the opposite direction, resulting in the garment supporting the second movement of the leg.

Abstract: A disposable front opening garment made with two superposed overlapped half width segments and pads of different shape located between segments. Other embodiments have pads of different shapes on both segments positioned for different requirements. Pads inside segment assemblies are enclosed with impervious substrates to contain body fluids. Elastic on segment margins form cuffs. Expandable materials, elastic side tapes, and elastic front closaure tape provide girth adjustment. Segment assemblies with enclosed pads are overlapped and bonded together in central areas of the rear panel and not sealed together in the front panel area for a front opening. Embodiments includes cooperating half width pads with wings on each segment, cooperating pads and a pad supporting panel, and a garment for use with a catheter. All embodiments include side margin tapes and a front recloseable tape.

Abstract: This invention provides an apparatus for steadily holding a bucket or paint can. The invention is designed to reduce the stress to a user's thumb, hand, and wrist that occurs when a user holds a bucket over a period of time. The apparatus comprises a glove sewn to a sleeve. The sleeve of the invention supports the bucket or paint can from all sides, including the bottom, so the user does not even have to touch the bale handle of the bucket or paint can. Two adjustable heavy duty wide straps are also provided for better support of the sleeve. Two wrist straps are also provided to adjust the hand compartment of the glove and support the user's wrist. The method of the present invention includes donning the glove about the hand and tightening it with the wrist straps and then using the device to hold the bucket or paint can within the sleeve.

Abstract: A grasping glove for fine motor skills therapy of a hand of a user. The grasping glove includes a main covering having a palm side and a back side. The grasping glove includes a little finger covering extending from said main covering. The grasping glove includes a ring finger covering extending from said main covering. The grasping glove includes a palm side to finger covering attachment between said little finger and said palm side of said main covering. The grasping glove includes a palm side to finger covering attachment between said ring finger and said palm side of said main covering. A method of treating deficiencies in finger fine motor skills of hand of a person by restraining a little finger of the hand toward a palm side of the hand and restraining a ring finger of the hand toward the palm side of the hand.

Abstract: The invention includes embodiments of a device and system for restraining an object proximally to a hand of a user. The device includes an arm member and at least one attachment member that is attachable to the arm member. The object is restrainable proximally to the hand by extending the at least one attachment member between one side of the hand and another side of the hand, with the object is positioned between the hand and the at least one attachment member. The invention also includes a system for restraining an object to a hand of a user. The system includes an object restraining device and an object that has at least one groove, wherein the at least one attachment member is retainable in the at least one groove. The invention also includes a groove member, which is attachable to an object. The invention further includes a stick training system. The system includes a practice stick and a device for attaching a practice stick to a hand of a user.

Abstract: A firearm safety retaining glove or wristband includes an adjustable wristband or wristband portion releasably securable about a users wrist, a safety retaining strap attached at one end to the wristband or wristband portion, and extendable forwardly to and between a user's fingers and the trigger guard of a firearm held by the user, thence to the opposite side of the wristband or wristband portion, where it is releasably securable to the wristband, preferably by passing through a D-ring attached to the wristband, folded back on itself, and releasably secured to itself with a hook-and-loop closure.

Abstract: Disclosed is a visor cap, for use in shading a face of a user from ultraviolet rays without impeding a visual field, and protecting a head of the user, which includes a crown, a sun visor coupled to the crown of the cap to freely pivot to predetermined angles by use of a pair of pivotal coupling units provided to both side ends thereof and made of a synthetic resin film of a flexible and semi-transparent ultraviolet material, a sweatband having an elastic material therein and removably attached to an inner surface of the cap by use of an attaching unit to cover an elastic frame fixed to the inner surface of the crown of the cap, and a rear adjustable band having male and female Velcro fasteners attached to a back portion of the cap.

Abstract: A wrist protective supporter has a wrist section curved to cover from a wearer's arm to a wrist, a hand-back pivoting section hinge-connected to the wrist section and pivoting vertically, a hand-back supporting member engaged to the hand-back pivoting section to pivot from side to side, a rail provided to the wrist section to face the hand-back pivoting section, a slider moving along the rail and pushing and pivoting the hand-back pivoting section downward by interfering with the hand-back pivoting section, an engaging section provided to the slider and engaged or disengaged with the rail, and a knob releasably engaged to the hand-back supporting member by passing through the hand-back pivoting section. The wrist protective supporter for bowling supports a wrist to correctly throw a ball while preventing an injury which may happen due to a shock to the wrist during the bowling.

Abstract: A headwear piece has a crown defining a receptacle for the head of a wearer and a rim projecting angularly away from the crown. The rim has a core layer that is made from at least one of an animal hide and a synthetic animal hide, and a second layer. The core layer has an upwardly facing surface and a downwardly facing surface and at least part of one of the upwardly facing surfaces and downwardly facing surfaces is covered by the second layer.

Abstract: A sweat absorbent strip with temporary adhesive on one side that can be adhered inside the brow of a hat to absorb sweat and grime. A plurality of such strips may be dispensed in pre-packaged form from a box dispenser. After using the hat with sweat absorbent strip according to the present invention, the user simply discards the strip and the hat is ready for use the next day by the same or by another person.

Abstract: A disposable glove including a first layer and a second layer overlaying a region of the first layer, said first and second layers being joined together along their peripheries to form an abutted portion and an opening for inserting a hand between the first and second layers. The first layer of the glove has a mounting section attached to the rest of the first layer by a transverse line of weakness, and the mounting section has a mounting hole for mounting the glove on a glove rack. A distance between a tip of a middle finger portion of the glove and the transverse line of weakness is between approximately 28 cm and approximately 32 cm. For example, the distance may be approximately 30 cm. The first layer on the palm-side of the disposable glove after detaching from the mounting section may cover the hand and about one-third (e.g., approximately 36%) of the forearm between the wrist and the elbow of a person wearing the glove.

Abstract: Chemical and biological protective hood assembly. The hood assembly comprises a head cover portion; a visor; a head passthrough; and an air line passthrough.

Abstract: An ear and scruff protective cover used in the process of hair dyeing includes two ear covering portions and a neck covering portion. The two ear covering portions are respectively connected with the upper left and right corner of the neck covering portion. The two ear covering portions are respectively covered on a person's left and right ear, while the neck covering portion is covered on a person's scruff and neck sides for protection to prevent the person's ears and neck from contacting with hair dye and causing skin disease.

Abstract: An adjustable hat comprising: a material crown; a first axis situated on a first side of said crown; a second axis situated on a second side of said crown; a brim containing a frame having a first end and a second end; said first end engaging said first axis and said second end engaging said second axis, said brim being rotatably positioned about said material crown.

Abstract: A method of making a mask sock, comprising the steps of: forming a sock having a leg engaging section, an ankle engaging section and a foot engaging section; forming a mask from a material selected from the group of plastic, latex and fiber; forming a composite mask member including the mask, a layer of inner filler material in contact with the mask; the foot engaging section having an outer surface for receiving the layer of filler material; and attaching the composite mask member to the outer surface of the foot engaging section by connecting means that include gluing, stapling or stitching.

Abstract: A storage unit for women primarily, for disposition on the leg, thigh or arm for the storage of small articles such as lipstick, credit card, drivers' license, key, etc., formed of a leg, thigh or arm encircling member connected to an elastic film, upon which film is mounted at least one and up to about four pockets, each of which pockets includes its own respective front flap having a closure thereon for removable engagement with a closure on the pocket's storage section. Two versions of the limb encircling member are set forth. The encircling member may be disposed interiorly or exteriorly to the pocket(s).

Abstract: A protective headgear comprising a headband and two shield plates. In a back region, the headband and the shield plate extend down behind the user's ear towards a bottom region on a user's head. The shield plate has a bottom protective rim that is designed to cup underneath a user's skull to shield the base of the user's skull. In addition, both shield plates have a small gap between them so that they wrap around the user's head. Additional components can also be added to this headgear. For example, this headgear can also include a terry cloth in a front region to gather sweat or moisture from a user's forehead. In addition, two ear flaps can also be attached to the headgear to cover a user's ears. These earflaps are designed to keep the user warm in the winter. In addition, this headgear can be alternately opened and closed via a releasable factor such as a hook and loop fastener.

Abstract: A goggle (12) having removable/replaceable outriggers (16) conveniently detachably engaged with the sidewalls (14) of the goggles. The outriggers (16) have an aperture (26) in communication with a venting aperture (30) communicating through the sidewall (14) to the eye cavity (28). Pins (18) project from flexible/compressible top and bottom walls of the outrigger (16) to engage within receiving cavities (24) formed in the goggle sidewalls (14).

Abstract: The present invention concerns embodiments of swim goggles. In one embodiment, the goggles include a pair of eyepieces that are not interconnected by a nose piece or a head strap. Each eyepiece includes a transparent lens portion that covers an eye and a peripheral frame portion surrounding a respective lens portion. The frame portion of each eyepiece has a posterior surface that carries an adhesive layer (e.g., a layer of adhesive tape) for adhesively securing the eyepiece to the skin adjacent the eyes. In another embodiment, the eyepieces can be interconnected by a nose piece and a head strap. The lens portion of each eyepiece includes a flat, anterior lens and a flat, side lens that is connected to a temporal edge of the anterior lens and is inclined away from the anterior lens to reduce hydrodynamic drag and optical distortion.

Abstract: A ballistic vest having a front panel and a rear panel attached to each other by releasable connectors. The front and rear panel each have a ballistic package having a plurality of sheets of ballistic material and a semi-rigid frame structure attached to the layers of the ballistic material. The frame structure has a plurality of members defining openings in the frame structure wherein the frame structure absorbs energy from a projectile entering the sheets of ballistic material.

Abstract: A body armor for protecting a user from penetration comprising: a front protective section for overlying the chest region of the user; a rear protective section for overlying the back of the user; a pair of flexible right and left shoulder straps fastened to right and left shoulder regions, respectively, of the rear section, wherein the straps extend over the right and left shoulders of the user for attachment to corresponding right and left portions of the front section; the shoulder straps include complete adjustability within an outer shell shoulder so as to be hidden within the outer shell shoulder, the shoulder strap is directly attached to a ballistic panel by stitching through the ballistic panel and the shoulder strap; and a stabilizer tab is directly sewn to the ballistic panel so as to stabilize the ballistic panel against the user's body.

Abstract: The present invention consists of a removable male toilet over spray shield constructed from lightweight thermoplastic or its equivalent that is provided with a semi-elliptical upstanding wall which removably sits within the lower portion of the inner rim of a toilet bowl when the toilet seat is upstanding. The device is provided with flange attachment means which merely sits upon the toilet seat rim when in use. The device may thus be easily lifted onto and away from the toilet bowl rim without complicated attachment means. To facilitate insertion and removal on a toilet, a handle may be provided within the semi-elliptical walls, at the rear, or on the top portion of the device. A domed cover may also be provided in order to prevent upward spray from falling onto floors and walls. The device is intended to promote proper toileting in young boys and may thus be provided with stickers or amusing raised images to ensure proper urine channeling.

Abstract: An outflow valve assembly for a toilet tank is disclosed, wherein the valve assembly comprises a base including an opening for passing water out of the toilet tank, a valve portion including a lower outflow tube section extending upwardly from the base and having a hollow interior, and also including a flush valve for discharging water from the toilet tank when opened, and an upper overflow tube adjustably coupled to and extending vertically upward from the lower outflow tube section. In some embodiments, the flush valve includes a flapper valve disposed on the side of the lower outflow tube section. In other embodiments, the flush valve is formed by a surface of the lower outflow tube section resting against a surface of the base.

Abstract: A spa cover is assembled from two or more molded foam sections. The sections may be molded from polystyrene, polyethylene, or a mixture of polystyrene and polyethylene. Panels are molded into the sections along mating edges, which panels cooperate to align the sections. The sections further include latches for holding the sections in alignment. The sections taper from a peak at the center of the cover to facilitate the run-off of rain, water sprays, or spills. Tie downs or inserts may be molded into the foam to facilitate the use of child safety straps to secure the cover to a spa. The cover may be sized to match known spa sizes, and may include a molded in decorative pattern and/or color.

Abstract: A machine for anticipatory sensing and intervention to avoid swimmer entrapment, with an active pre-entrapment sensor (e.g. ultrasonic) that assesses the relative hazard based on swimmer proximity to the drain cover. An Ultrasonic Transducer launches waves into the suction piping and/or drain system, and to receive echoes from the drain cover, swimmer limbs, hair or body, and the water surface parellel to the drain cover. A Transmitter/Pulser electrically energizes the ultrasonic transducer to launch waves into the suction piping and/or drain system, A Receiver/Processor detects the echoes electrical signals from the the ultrasonic transducer and to receive echoes from objects of interest beyond the pool drain. A Logic and Control element converts the detected signals into reliable information regarding a swimmer safety/hazard status. An Output provides a pump shutdown command when required. Solutions for both new construction and retrofit are described.

Abstract: A device for anchoring accessories to a surface of a tub has a fluid injection jet. The device comprises a connector adapted to be connected to an accessory. An anchor is interconnected to the connector, and is adapted to be connected to the fluid injection jet. A fluid passage is formed in the device so as to enable fluid to be injected therethrough and into the tub when the anchor is connected to the fluid injection jet. A method of anchoring accessories is also provided.

Abstract: The Universal Shower Slider is a uniquely portable unit that can be attached to any existing shower neck pipe. It will provide the user with the convenience to adjust the height and sway of any hand held shower device. The universal shower slider is constructed of ¾? PVC pipe and various ¾? fittings, It has a clamp at the top and a suction cup at the bottom. It also includes a traverse rod and a showerhead adjustment assembly that provides a ¾? male adapter connector. The Universal Shower Slider in its fully assembled configuration is clamped to the existing shower neck pipe at the top and is secured by a standard 1? round suction cup at the bottom. The traverse rod provides a track upon which the showerhead adjustment assembly rides up and down. Moreover any handheld hose is thereby providing the water spray screwed to the existing shower neck pipe.

Abstract: A patient lifter has a patient support platform that may be lowered until it touches the floor. Once in this position, it is a simple matter for a single person to place a patient who is prone on the floor onto the patient platform. Once on the platform, the patient support platform can be raised to a height sufficient to transfer the patient onto a bed or chair. The invention has many different devices for raising and lowering the patient support platform which may be chosen. The device is provided with wheels so that it may be easily transported to the site of the patient and be used to move the patient from place to place.

Abstract: In one embodiment, a support frame for a mattress is provided that can easily be broken down for storage and is easily constructed of a number of individual support members such that the size of the frame is easily variable. The frame includes a plurality of the individual support members that are arranged in an interlocking manner to form the support frame. Each support member has one or more interlocking features that permit each support member to mate with one or more other support member in an interlocking manner, with the support members being mated together by orientating the support members in a grid-like pattern with the features aligned. The two support members are then interlocked with respect to one another by inserting one support member into features of another support member such that the two support members are effectively interlocked with respect to one another, wherein each end of the support members includes a first locking feature.

Abstract: A mattress covering is described. The covering may be a sheet or a mattress pad. A mattress pad according to the present invention has: i) a central rectangular panel comprising a plurality of layers including an upper textile layer, a lower textile layer, and a batting layer quilted to at least one of the upper and lower textile layers. Side panels depend from the central panel, comprising a single layer of a textile fabric. End panels are defined by extensions of the central panel. The side panels are joined to the end panels by seams extending in a transverse direction in relation to the rectangular central panel.

Abstract: A device for emergency transport of pediatric patients that safely and efficiently transports a pediatric patient to a medical facility is described. The device enables the transport of pediatric trauma patients on a conventional stretcher while still enabling a backboard to be used therewith to immobilize a critically-injured patient. Additionally, the device provides for more comfortable and sanitary transport of a pediatric patient by adding a disposable padded cushion, which is placed on the device prior to placing the child in the device for emergency transport.

Abstract: An appliance for making adjustment for good limb positions, including: a base seat which is adjustable in height at one end thereof in the up-down directions, a neck part adjustment part which is attached to the base seat so as to be adjustable in height and which is adjustable in angles for a tip end which is opposite from the end that is attached to the base seat in the top and bottom directions, and a pair of adjustment parts for a dorsal surface of a scapula which have a triangle vertical cross section and can turn in all directions and in a horizontal direction from the base seat.

Abstract: A pneumatically controlled intubation mat includes laryngoscope-mounted controls. A body supporting mat is positioned beneath the patient undergoing endotracheal intubation and is dimensioned to extend beneath the patient's torso and head while in a substantially upward-facing prone position. An inflatable bladder is positioned between the base and the mat board which is adapted to elevate the mat board with respect to the base as the bladder is inflated and thereby expands. An expandable headrest is affixed to a top surface of the mat board and is positioned for placement beneath the patient's head. The headrest further includes a head support air bladder which is operative to elevate the patient's head as the head support bladder is inflated and the headrest thereby expands. A source of compressed air is in fluid communication with the torso support bladder and the head support bladder by way of an air distribution manifold.

Abstract: An inflatable bed includes an inflatable main chamber having a top panel, a top cover attached to the top panel of the main chamber to define a sealed chamber between the top cover and the top panel, and a padding provided in the sealed chamber. The padding provides a solid cushion between the person and the main chamber, so that when a person sleeps on the bed, the person actually lays on the padding and not the top panel of the main chamber, thereby increasing the level of comfort and simulating the feeling of sleeping on a regular bed.

Abstract: A foldable massaging bed cushion for supporting a person in a sitting position is disclosed. The foldable massaging bed cushion has a backrest with two side edges, two armrests rotatably coupled to the backrest, and one or more massaging units within the backrest. The two armrests can rotate from a sitting position to a folded position along the two side edges of the backrest. The foldable massaging bed cushion can also have one or more heating units and one more massaging units located within the backrest and a control panel to control the massaging units and heating units.

Abstract: A patient transfer device includes a top sheet inclined in a head end portion such that a patient's torso is elevated with respect to the feet. The mattress may include relatively narrow chambers in an intermediate portion for increased strength and stability. The mattress may also include a leg separator in a foot end portion, preferably tapered and including one or more inflatable chambers. The mattress may also include a pump mounted directly to the mattress. The transfer device may include a torso and head support accessory having independently inflatable torso and head chambers and inlet and exhaust tubes connected to each chamber. A distribution manifold includes valves connected to each of the inlet and exhaust tubes for controlled inflation and deflation of the chambers. The device may include a control unit connected to the manifold and mountable to an intubation tube for actuation by a user's thumb.

Abstract: A mattress component and method of making a mattress component is provided. The mattress component includes first and second layers to be assembled in a mattress over which a user will lie. The first layer of a first material has different properties than the second layer of a second material. The second layer has a surface underlying the surface of the first layer. Mating patterns are formed in the surfaces of the first and second layers. The mating patterns in the first and second layers are designed to substantially match the surfaces of the first and second layers with each other. The mating patterns in the first and second layers result in a greater effective thickness in one of the layers in areas corresponding to a position where hips and shoulders of the user will rest on the mattress, and a lesser effective thickness in other areas.

Abstract: A multipurpose tool includes bypass shears with handles that fold around the shears into a compact configuration in which the blades of the shears are hidden. A sharp-edged cutter is removable from the shears for resharpening or replacement. A blade safety lock holds the blades closed and is automatically engaged as the handles are folded. The handles are comfortably shaped and may include overmolded elastomeric cushioning portions.

Abstract: This invention pertains to inkjet printing on fabric and to a pretreatment solution for the fabric that allows high quality printing thereon.

Abstract: A washing machine includes a processor, a scanner cooperating with the processor and adapted for reading machine-readable coding on articles of apparel, a tub, and an equipment container selectively rotatably mounted inside the tub. Means are provided for selectively rotating the tub, the means cooperating with the processor. The equipment container is advantageously adapted to hold a plurality of flexible articles separated from each other and substantially immobile against, and relative to, the equipment container while it is being rotated in the tub.

Abstract: The present invention relates to a 2-step methods, and compositions for providing more vibrant, natural and long-lasting color to hair and at the same time reducing hair fiber damage associated with alternative current methods. In the first step the hair is contacted for a period of time with a dye precursor mixture containing specific oxidative hair dye precursors under conditions where these dyes are substantially inactive. Color is then developed in a second step by contacting the hair with a mixture of a peroxide compound and a persulfate salt. Surprisingly the 2-step method leads to considerable “lift” or lightening without negatively impacting the coloring ability of the oxidative dye. The invention also relates to kits providing the means to accomplish these steps.

Abstract: Bicyclic fused 5-5 heteroaromatic keratin dyeing compounds with two or three heteroatoms. This invention further relates to a composition for the oxidative dyeing of keratin fibers, comprising a medium suitable for dyeing and one or more bicyclic fused 5-5 heteroaromatic keratin dyeing compounds with two or three heteroatoms. This invention further relates to a method for oxidative dyeing of keratin fibers, comprising applying such compositions in the presence of an oxidizing agent, for a period sufficient to develop the desired coloration.

Abstract: The invention concerns a ready-to-use oxidation dyeing composition for keratinous fibres, and in particular human keratinous fibres such as hair comprising, in an a medium suitable for dyeing, at least one oxidation colouring agent, at least one cationic direct colouring agent and at least an enzyme such as laccase, as well as the dyeing method using said composition.

Abstract: Tricyclic 5-6-5 heteroaromatic keratin dyeing compounds having two heteroatoms. Compositions for the oxidative dyeing of keratin fibers, comprising a medium suitable for dyeing and one or more tricyclic 5-6-5 heteroaromatic keratin dyeing compounds having two heteroatoms. A method for oxidative dyeing of keratin fibers, comprising applying such compositions in the presence of an oxidizing agent, for a period sufficient to develop the desired coloration.

Abstract: A method of making a mask slipper, comprising the steps of forming a mask from a material selected from the group consisting of plastic, latex and fabric; forming a composite sole member having a first layer of inner filler material; forming a composite upper member having a second layer of inner filler material, an outer surface for receiving the mask, and an inner surface for receiving an inner lining. The method of making the mask slipper further composes the steps of attaching said mask to said outer surface of the composite upper member; attaching the inner lining to the inner surface of the composite upper member; attaching the composite sole member to the composite upper member to form the mask slipper; and turning of the mask slipper such that a correct outer side is on the outside of the formed mask slipper.

Abstract: A carpet cleaning apparatus comprises a housing and wheels rotatably connected to the housing for moving the housing over a carpet. A brushroll, supported by the housing, is rotatable about a first axis. A pulley, supported by the housing, is rotatable about a second axis parallel to the first axis. A drive wheel, supported by the housing, is rotatable about a third axis parallel to the first axis. A belt has inner and outer surfaces. The inner surface extends about and engages the brushroll and the pulley. The outer surface engages the drive wheel. The belt is pulled by the pulley downward against the drive wheel for the drive wheel to drive the brushroll through the belt.

Abstract: This invention relates to a device which is either permanently attached or removable to the edge of a material such as a vehicular glass window. This device may be comprised of a converter sub-unit (vibrator) and an amplifying coupler. These elements are arranged so as to propagate mechanical motion generated by the converter sub-unit through the amplifying coupler and into the edge of the attached material. The resulting vibration motion in the material, which could take the form of a longitudinal compression/rarefaction wave, transverse wave, or a combination of the two waveforms, is of a sufficient magnitude so as to cause the adhesive bond between the material's surface and other solid debris, such as ice, to be quickly broken. This allows the debris to fall away while not damaging the material. The vibration motion in the material is also of sufficient magnitude to remove a liquid such as water from the material surface.

Abstract: A snake feeding device comprises a base having opposite ends, an actuator pivotally mounted on the base, and first and second sets of drive rolls spaced apart in the direction between ends of the base. Each set includes a roll on the base and two rolls on the actuator for engaging a snake therebetween and displacing the snake relative to the base in the direction between the ends thereof in response to rotation of the snake. The actuator selectively displaces the rolls of each set relative to one another.