Abstract: A channel substrate includes a plurality of individual channels and a plurality of linear machining marks. The plurality of individual channels is arrayed in row. The plurality of linear machining marks is substantially parallel to a direction in which the plurality of individual channels is arrayed in row.

Abstract: A liquid ejecting head includes a head main body in which nozzles are arranged along a first direction, a housing fixed to the head main body, a liquid storage chamber that includes a space formed in the housing, and stores the liquid supplied to the nozzles, an introducing port of the liquid communicating with the liquid storage chamber, and a plurality of beam-shaped units that are stretched over an inner wall face of the space in the housing, in which the plurality of beam-shaped units are provided with intervals such that a plurality of flow paths are arranged in the first direction from the introducing port, and, among the plurality of flow paths, a first flow path far away from the introducing port in the first direction has a flow path width in the first direction smaller than that of a second flow path close to the introducing port.

Abstract: A bonded member includes at least two members. The at least two members include a first member and a second member bonded to each other. The first member has a bonded face bonded to the second member. The bonded face has a recessed portion at an outer periphery of the bonded face, to retain an adhesive. The recessed portion is open at the bonded face and an outer peripheral face of the first member. In a plan view from a direction vertical to the bonded face, an outer edge of a bottom face of the recessed portion is disposed at an inner position in an in-plane direction of the bonded face than an outer edge of the outer peripheral face of the first member.

Abstract: In an example, a printhead includes a memristor, in which the memristor may include a first electrode, a second electrode positioned in a crossed relationship with the first electrode to form a junction, and a switching element positioned at the junction between the first electrode and the second electrode, in which the switching layer includes a via formed in the switching element to reduce an area of the switching element.

Abstract: An ink jet recording method including causing ink to adhere to a recording medium by ejecting an ink composition using a print head provided with a nozzle, a pressure chamber, and a connection portion which connects the pressure chamber and the nozzle to each other at a length of 500 ?m or more, in which the ink composition includes a coloring material and a solvent represented by General Formula (1) below at 30 mass % or more with respect to a total mass of the ink composition, R1O—(R2O)n—R3??(1) (in General Formula (1), R1 and R3 each independently represent a hydrogen or an alkyl group with 1 to 5 carbon atoms and at least one of R1 and R3 is an alkyl group with 1 to 5 carbon atoms, R2 represents an alkylene group with 2 to 4 carbon atoms, and n represents an integer of 1 to 6).

Abstract: A liquid ejecting head includes a liquid ejecting unit that has a nozzle surface to which the nozzle is open, a base member to which the liquid ejecting unit is fixed, and a cover member that is attached to the base member and on which a laminated member is laminated, in which the cover member has a fixing portion to which the laminated member is fixed and a fragile portion that has lower rigidity than the fixing portion, and is attached to the base member by fixing the fragile portion to the base member.

Abstract: A liquid droplet discharging head includes discharging orifices to discharge a liquid droplet, pressure generating chambers to apply a pressure to liquid inside the liquid droplet discharging head, a common liquid supplying chamber to accommodate the liquid to the pressure generating chambers, individual supplying paths to communicate the pressure generating chambers with the common liquid supplying chamber, a displacing film for discharging to conduct self displacement to individually apply a pressure to the liquid inside the pressure generating chambers to discharge the liquid from the discharging orifices, a liquid supplying chamber displacing film to conduct self displacement according to a pressure change of the liquid in the common liquid supplying chamber, and individual supplying holes existing at each border between the individual supplying paths and the common liquid supplying chamber and facing the liquid supplying chamber displacing film via the liquid in the common liquid supplying chamber.

Abstract: A fluid ejection apparatus is disclosed. One apparatus includes a first head chip and a second head chip. The first head chip includes nozzle groups A1, A2, B1 and C. The second head chip includes nozzle groups D2, E1, E2 and F. The nozzle groups A1, A2, B1, C, D2, E1, E2 and F eject fluid at an average usage rates A1, A2, B1, C, D2, E1, E2 and F, respectively. The average usage rate A2 is smaller than the average usage rate A1. The average usage rate B1 is smaller than the average usage rate A1. The average usage rate C is smaller than the average usage rate A1. The average usage rate D2 is smaller than the average usage rate E2. The average usage rate E1 is smaller than the average usage rate E2. The average usage rate F is smaller than the average usage rate E2.

Abstract: In one example, a printhead structure includes multiple printhead dies and a printed circuit board embedded in a single monolithic molding with fully encapsulated wire bonds that electrically connect the dies to conductive routing in the printed circuit board. Fluid may pass through a slot in the molding directly to the dies.

Abstract: A liquid discharging device having a liquid discharging head with nozzles and a liquid discharging surface; a conveyer to convey a medium in a conveying direction; a nozzle cap movable to contact or to be separated from the nozzles; a pump; a switcher to switch connection and disconnection between the nozzle cap and the pump; a drivable device; a first motor connected to the conveyer to transmit a driving force; a second motor to drive the switcher and the drivable device; a selector to switch transmission destinations for a driving force form the second motor between the switcher and the drivable device depending on a rotating direction of the second motor; and a controller to control the second motor to rotate in one of a first direction and a second direction opposite from the first direction, is provided.

Abstract: After the control section of a printer (liquid discharge apparatus) discharges ink on the basis of a print job, the control section waits for an input of the next print job while causing the discharge section to perform flushing. If the next print job is input before the elapsed time Te from the end of the ink discharge on the basis of the print job exceeds the waiting time Tw, the control section causes ink to be discharged on the basis of the next print job. On the other hand, if the next print job is not input before the elapsed time Te exceeds the waiting time Tw, the control section causes the cap to be subjected to capping.

Abstract: A maintenance device used in a liquid discharge head includes a first cap to seal a nozzle face of the liquid discharge head, a second cap disposed outside the first cap, and a humidity conditioner disposed outside the first cap and inside the second cap. The second cap seals the first cap and at least a contact portion between the nozzle face of the liquid discharge head and the first cap. The humidity conditioner adjusts humidity in a space between the first cap and the second cap.

Abstract: A printing system, print control device, and print control method enable non-technical users without specific technical knowledge to appropriately set the flushing conditions of a printer. A host that sends commands to an inkjet printer that prints on a print medium provides a user interface for selecting an operating mode prioritizing the throughput of the printing operation, or a normal operating mode. When the operating mode prioritizing printer throughput is selected using the user interface, the host generates a command setting a condition for flushing the ink nozzles of the inkjet printer, and sends the generated command to the inkjet printer.

Abstract: A liquid ejecting apparatus includes a liquid ejecting head which ejects liquid from a nozzle that is disposed on a nozzle surface, a first wiping portion which is able to wipe away the liquid that is adhered to the nozzle surface, and a second wiping portion which is able to hold the liquid that is adhered to the nozzle surface by contacting the nozzle surface, wherein it is possible to perform a first maintenance operation in which the nozzle surface is wiped using the first wiping portion and a second maintenance operation in which the second wiping portion is caused to contact the nozzle surface due to the second wiping portion being biased by the first wiping portion.

Abstract: A fluidic dispensing device has a body that includes a base wall having an exterior base surface, and an interior perimetrical wall that extends from the base wall to define a chamber. The interior perimetrical wall has a perimetrical end surface. The body has an exterior wall extending away from the base wall. The exterior wall has a chip mounting surface defining a first plane, the base wall being oriented along a second plane, the first plane being orthogonal to the second plane. An ejection chip is mounted to the chip mounting surface of the body. A diaphragm is engaged with the perimetrical end surface of the chamber to define a fluid reservoir. A lid is attached to the body, with the diaphragm interposed between the lid and the body. The body and the lid define a split at a juncture of the lid and the body.

Abstract: Provided is a technique capable of reducing the possibility that liquid reaches a visual check face. A liquid container includes a liquid retaining portion that can retain liquid and has an injection port forming face in which a liquid injection port is arranged, a visual check face that intersects the injection port forming face and through which a liquid surface in the liquid containing portion can be visually checked from the outside, and a container guiding path that guides the liquid existing in the injection port forming face in a direction different from a direction toward the visual check face.

Abstract: An attachment is mounted on a cartridge holder of a printer as a replacement of an ink cartridge. An ink outlet member having a link passage is separably secured to an attachment body. Ink is supplied from the exterior to the ink outlet member through an ink supply tube. When the attachment is mounted on the cartridge holder, a downstream end of the ink outlet member is positioned with respect to and connected to an ink supply needle of the printer. Accordingly, the attachment is easily and quickly installed in a liquid ejection apparatus. This reduces costs and makes it easy to use the attachment.

Abstract: A liquid discharge apparatus has a liquid discharge head having a recording element board that includes a plurality of discharge orifices configured to discharge liquid, a plurality of pressure chambers internally provided with a recording element configured to generate energy used to discharge liquid, the plurality of pressure chambers each communicating with the plurality of discharge orifices via discharge channels, a liquid supply channel configured to supply liquid to the plurality of pressure chambers, and a liquid recovery channel configured to recover liquid from the plurality of pressure chambers, and a tank configured to store liquid supplied to the liquid discharge head. The plurality of pressure chambers communicate between the liquid supply channel and the liquid recovery channel so that liquid flows through the plurality of pressure chambers, and the specific permittivity ?r of the liquid stored in the tank satisfies the relationship of ?r?65.

Abstract: An ink of this invention contains a self-dispersible pigment having a phosphonic acid group bonded directly or through another atomic group to the surface of the self-dispersible pigment, polyurethane resin particles, a monovalent inorganic salt, and water.

Abstract: A digital printing machine color control method includes printing test images onto substrates, measuring substrates using a measuring device, comparing actual color values on substrates and saved color setpoints of test images using a controller, calculating differences between color setpoints and actual color values on substrates using the controller, upon exceeding acceptable deviations between color setpoints and actual color values, modifying solid or halftone values by a factor using the controller, repeating printing test images using test image halftone values corrected by the factor and measuring new actual color values using the measuring device, comparing actual color values newly printed using corrected values and saved color setpoints of test images using the controller, calculating differences between newly printed actual color values and saved color setpoints of test images using the controller, and printing print jobs if differences between new actual color values and color setpoints are below

Abstract: Provided is a printing device that has a thermal head that transfers overcoat ink provided on an ink sheet onto the surface of printing paper based on pattern data. The pattern data is data in which a first pattern and a second pattern are arranged alternately in a primary scanning direction and a secondary scanning direction. The first pattern includes a rectangular block of high tonal value pixels, a frame-like group of low tonal value pixels surrounding the rectangular block, and a group of high tonal pixels surrounding the group of low tonal value pixels. The second pattern includes a rectangular block of low tonal value pixels, a group of high tonal value pixels surrounding the rectangular block, and a frame-like group of low tonal pixels surrounding the group of high tonal value pixels.

Abstract: An ion writing unit including an ion generator and an array of electrode nozzles aligned to receive and guide generated ions. The ion writing unit convertibly operates between at least a first mode and a second mode. In the first mode, ions flow from the ion generator through selected nozzles at a first flow rate to cause image formation on an electrically biased passive e-paper spaced apart from the electrode holes. In the second mode, ions flow from the ion generator through at least some electrode nozzles at a second flow rate that does not cause image formation on the electrically biased passive e-paper.

Abstract: A medium supporting unit includes a supporting unit including a supporting face which supports a medium, and a receiving unit in which a receiving face which is recessed with respect to the supporting face is formed; and a pressing unit which can press the medium which is supported by the supporting unit by being received on the receiving face, in which the receiving unit is formed of a material of which rigidity is higher than a material which forms the supporting face. By configuring such a medium supporting unit, it is possible to make the supporting unit thin and light weight.

Abstract: An application device includes a conveyer to convey a recording medium, an application roller to apply a treatment liquid to the recording medium, a pressure roller to sandwich the recording medium with the application roller to press the recording medium against the application roller, and a winding member to form a curved conveying path to have the recording medium curved along a conveying direction to wind the recording medium around the pressure roller. The pressure roller comes in contact with the application roller when applying the treatment liquid and separates from the application roller when not applying the treatment liquid. A predetermined positional relationship is maintained between the pressure roller and the winding member while the pressure roller moves close to the application roller to be in contact with the application roller, or the pressure roller moves away from the application roller to be separated from the application roller.

Abstract: A liquid discharge apparatus includes a device to apply a treatment liquid to a medium; a drying device to dry the treatment liquid applied to the medium; a device to apply a liquid containing a colorant to the medium on which the treatment liquid has been applied; and a control device. The control device controls a supply amount of the treatment liquid to an amount such that a surface hardness of the medium is 0.07 GPa or more as measured by nano indentation after the drying device dries a surface of the medium.

Abstract: An ink jet recording apparatus of the present invention includes a head, a first light source, a second light source. Liquid droplets of a photo-curable ink composition are applied to a recording medium. After one second or less elapses from the time when the liquid droplets are applied to the recording medium, the liquid droplets are illuminated with light of the first light source. After 0.1 second or more and one second or less elapses from the time when the liquid droplets are illuminated with light of the first light source, the liquid droplets are illuminated with light of the second light source.

Abstract: An apparatus is provided for positioning a substrate on a support body. The apparatus comprises the support body for supporting the substrate, at least one registration element, wherein said at least one registration element is positioned and arranged for registering the substrate in a preselected position on the support body when brought into a registering state. The apparatus further comprises a registration actuator movably arranged with respect to the support body for selectively arranging a registration element into the registering state.

Abstract: A sheet cutting apparatus includes a cutting position where a sheet is cut; a guillotine type cutter configured to move between the cutting position and a home position above the cutting position; a motor; a drive mechanism configured to transfer a drive force from the motor to the cutter to move the cutter between the home position and the cutting position; a drive control section configured to enable the cutter to fall from the home position to the cutting position when cutting a sheet by the cutter and then return the cutter to the home position; a determination section configured to determine whether or not a given period of time elapses from the last return completion of the cutter to the home position; and a return control section configured to return the cutter to the home position if the determination section determines that a given period of time elapses from the last return completion of the cutter to the home position.

Abstract: An image forming apparatus is provided including a drive source, a switching member, a drive force transmitter, a clutch, a controller, etc. The drive source drives a conveyer to rotate either normally or reversely. The switching member is swingable between an evacuation position and a striking position as a shaft rotates. The drive force transmitter transmits a drive force from the drive source to both the conveyer and the shaft. The clutch transmits the drive force to the shaft when being connected, and holds the switching member at the striking or evacuation position when being disconnected. The controller controls the drive source and the clutch such that the conveyer normally rotates to convey a manually-inserted recording medium from a manual conveyance path to an ejector and that the switching member swings from the evacuation position to the striking position, based on a signal indicating that the set position is wrong.

Abstract: Methods to exchange printing substrate rolls in a printer are described. In an exchange method, ink is printed to a first printing substrate web being unwound from a first printing substrate roll. The first printing substrate web is exchanged with a second printing substrate web being unwound from a second printing substrate roll. A transition region of the first and the second printing substrate webs is printed to during the exchange of the first and the second printing substrate webs. The transition region can be formed by gluing the second and the first printing substrate webs atop one another. A predetermined pattern can be printed onto the transition region during the exchange of the printing substrate rolls. The predetermined pattern can be chosen such that all nozzles of at least one print head are used for printing.

Abstract: The invention relates to a printing assembly which has print heads, each of which specifies application positions for printing fluid. A transport path is provided for the printing substrate through the printing assembly and is defined by at least two guide elements of the printing assembly. A printing section of the transport path begins at a first application position and ends at a last application position. At least one of the guide elements is in contact with a total of at least two lateral support elements and with at least one inner support element at three points that are spaced from one another in a transverse direction, the position of that guide element being thereby defined. The inner support element is arranged such that it is or can be rigidly connected to at least one of the lateral support elements.

Abstract: A printer includes a printing unit that performs printing on a printing medium; a winding unit that winds the printing medium on which the printing is performed by the printing unit; and a frame unit which is positioned between the printing unit and the winding unit on a feeding path of the printing medium, in which in a case where the printing medium is not wound by the winding unit, a receiving member for receiving the printing medium is detachably mounted to the frame unit, and in a case where the printing medium is wound by the winding unit, the receiving member is detached such that the frame unit comes in contact with the printing medium.

Abstract: A printing unit includes a carriage, a printing head mounted on the carriage, a guide pillar configured to support the carriage to be reciprocatingly movable in the front-back direction, a unit frame configured to support the guide pillar to be movable in the left-right direction, and a line-feed mechanism configured to move the carriage in the left-right direction. The line-feed mechanism includes a line-feed plate supported by the guide pillar to be movable in the front-back direction and a guide member configured to engage with the line-feed plate and guide the line-feed plate in the left-right direction together with the guide pillar according to the movement in the front-back direction of the line-feed plate.

Abstract: A printing apparatus includes a carriage on which a print head is mounted and that discharges an ink from the print head while moving the carriage along a predetermined direction and further includes a space width adjustment unit that causes a width of a space above the carriage within the printing apparatus to be larger in an acceleration region in which the carriage is accelerated from a stopped state than in a constant velocity region in which the carriage is moved at a constant velocity after the acceleration region. The space width adjustment unit causes the width of the space above the carriage in the constant velocity region to be smaller than or equal to a paper gap that is a distance between the carriage and a print medium which is below the carriage and which receives the ink discharged from the print head.

Abstract: A printing apparatus includes a printing portion that performs printing on a medium that is positioned in a printing region, a casing portion that covers the printing region, a support portion that is able to support the medium and is able to move so as to include the printing region and a set position at which the medium is set that includes at least a position outside of the casing portion on a movement path, and a cover portion that is provided so as to protrude to the set position side with respect to the casing portion and cover at least a part of the movement path of the support portion.

Abstract: A printer system comprising a printer having a printhead operatively installed therein, the printer including a housing having opposing thumb screws extending outwardly therefrom, and a mount comprising a printer bracket having opposite printer bracket side members each terminating in a distally extending side member leg configured for attachment to the rail, the printer bracket side members each further having a mounting slot formed therein with a vertical slot portion and at least one horizontal slot portion and a rail bracket having a rail bracket top member with opposite substantially downwardly extending rail bracket side members terminating in outwardly extending side member legs configured for attachment to the rail, whereby the printer is received within the mount and selectively positioned therein as by engaging the thumb screws within the mounting slots so as to position the printhead as desired beneath the rail bracket top member.

Abstract: A system including apparatus for applying a design to a nail surface, including an optical device scanning the anatomy of the nail surface and acquiring an image of said nail surface;—a print head;—a motor displacing the print head;—a control unit including connection to communicate with the optical device, and a computer application including instructions for controlling the motor to direct the print head. At least one remote server includes a database recording digital data corresponding to designs. The control unit communicates with the remote server and downloads digital data corresponding to the design to be applied on the nail surface. The control unit's computer application includes instructions to—analyze the anatomy of the nail surface scanned by the optical device;—and scale the design to be applied to adjust it to the nail surface scanned.

Abstract: An inkjet recording method using an active light-curable inkjet ink according to the present invention is characterized in that: the inkjet ink contains at least a gelling agent, a photopolymerizable compound and a photopolymerization initiator; the gelling temperature T1 (° C.) of the active light-curable inkjet ink, the temperature T2 (° C.) of the ink at the time when the active light-curable inkjet ink landed on a recording medium, and the temperature T3 (° C.) of the ink at the time when the active light-curable inkjet ink is irradiated with active light satisfy the relationship T1 (° C.)>T2 (° C.)>T3 (° C.); and the solubility of the gelling agent in the photopolymerizable compound at T3 (° C.) is less than 0.1% by mass. This inkjet recording method is capable of suppressing blooming, while at least maintaining the leveling properties and the pinning properties of an inkjet ink.

Abstract: Provided is a support for a thermal transfer image-receiving sheet, capable of obtaining a thermal transfer image-receiving sheet that has favorable stability against curl and is excellent in the texture of a print surface in the case of print under the environmental conditions of high temperature and high humidity. A support for a thermal transfer image-receiving sheet according to the present invention includes a porous layer composed of a porous film, a first polyolefin resin layer, a substrate layer, and a second polyolefin resin layer that are layered in the order mentioned, in which the first polyolefin resin layer has a density of 0.93 g/cm3 or less; and the second polyolefin resin layer has a density of more than 0.93 g/cm3.

Abstract: The image recording method includes the following steps (a) to (c): (a) forming a barrier layer on a recording medium by using a solution which contains an acidic group-containing polymer in a nonaqueous medium; (b) forming an organic acid-containing layer on the barrier layer; and (c) forming an image by jetting an aqueous ink onto the organic acid-containing layer by an ink jet method.

Abstract: A coated paper for industrial inkjet printing presses that achieves excellent uniformity in color densities and ink absorbability, has the capability of suppressing strike-through of inks, and achieves excellent paper feeding characteristics is provided. The paper comprises: a base paper, and a coating layer containing at least one selected from the group consisting of a cationic resin and a water-soluble polyvalent cationic salt, and a pigment containing kaolin, on the base paper. The coated paper surface on the side where the coating layer is located has an arithmetic mean roughness (Ra) of is 4.5 ?m to 7.5 ?m, and has 1 to 350 protruding parts per 1.0 square centimeter, wherein a protruding part has a maximum width of 10 ?m to 100 ?m measured using a photographed image of the coated paper surface taken by magnifying 50 times using an electron microscope.

Abstract: An image processing apparatus includes a first correction amount acquiring unit and a first correction unit. The first correction amount acquiring unit acquires a first luminance correction amount of each block based on the luminance of each pixel in the block obtained by dividing a first image among multiple processing target images obtained by imaging a target object with multiple sheets bound together while opening the target object. The first correction unit corrects the luminance of each pixel in the multiple processing target images based on the first luminance correction amount of each block acquired by the first correction amount acquiring unit.

Abstract: A laminate structure along with one or more security features is disclosed. The laminate structure may correspond to an identification document, such as an identification card, and may include a core layer with one or more security elements established thereon. As light is emitted into the core layer, the light impacts one or more of the security elements and is re-radiated back out of the core layer, thereby providing an indication that the laminate structure includes the security elements and is, therefore, authentic.

Abstract: A unisometric reflection display having a light transmissivity includes reflectors included in a reflector holding layer of a thin film form. The reflectors incline at a fixed direction and a fixed angle to a plane of the reflector holding layer. Light incident from a first direction is reflected on a front surface of a reflector to be inhibited from transmitting through the reflector holding layer. Light incident from a second direction to a reflector is reflected on a front surface of the reflector and a rear surface of another reflector adjacent the reflector at a front surface side, or reflected this way a plurality of times to transmit through the reflector holding layer.

Abstract: Modular fountain pens useable with inks of varying viscosities that utilize a nib with exterior grooves for conveying ink, which removably fits into a coupler that places the nib in fluid communication with a reservoir by way of a central ink tube. The coupler removably secures into a housing, which is closed on its opposite end by a rotating end cap designed to engage the ink reservoir so as to allow the pen user to adjust the internal volume of the reservoir. The pen allows for quick assembly and disassembly, which allows the pen to be easily cleaned between uses to accommodate fluid inks that may leave heavy residues and also allows for the appearance of the pen to be changed according to user tastes. The use of a quick-removing nib allows for a double-tipped nib to be used, with different writing tips, and easy swapping by the pen user between writing tips.

Abstract: A writing implement in which a joint connecting an ink supply section and a ballpoint pen tip together is configured from three members. The three members configuring the joint are a substantially cylindrical center member, a substantially cylindrical surrounding member formed at the outer periphery of the center member, and an interposing member that is molded by a soft member molded so as to cover the outer periphery of the center member and the surrounding member. An annular gap section is provided between the center member and the surrounding member. The leading end of the ink supply section is fitted into the gap section. The joint is formed by two color molding. The center member and the surrounding member are molded by primary molding, and the interposing member is integrally molded onto the center member and the surrounding member by secondary molding.

Abstract: The part for mounting on the finger is provided so as to be integral with a linking member; by means of building-in, folding, inserting and removing, and winding, the holder is made deformable to a carried condition when not in use; a necessary shortest dimension of the writing tool in the written condition is divided into at least two sections, i.e., an axis body 1 and a cap 2; and then, the axis body 1 and the cap 2 are overlapped with each other by means of folding or storing to thereby shorten the writing tool in a retained condition, and the writing tool in the written condition is reversibly movable in a predetermined range to thereby make an angle of the writing tool adjustable.

Abstract: The present invention relates to a pneumatic tire having an alloy film innerliner with a rubber reinforced spliced overlapping ends.

Abstract: A collapsible tire for a passenger vehicle, comprising at least one carcass reinforcement optionally associated with an inextensible crown reinforcement, itself radially on the inside of a tread, two beads and two sidewalls, said beads comprising at least one inextensible circumferential reinforcing element called a bead wire, said bead wire defining, when free of any stress, a mean line forming a substantially circular closed curve in a circumferential plane, wherein the invention is characterized in that the bead wire of each bead is flexible, wherein after the tire has been collapsed, the mean line of the bead wire simultaneously defines a first curvature, and a second curvature, the first and second curvatures being connected together by a third connecting curvature, the projection of said first, second and third curvatures of the collapsed tire onto an axial plane defining the two-dimensional envelope by way of a total perimeter P of less than or equal to [3×(2H+A)], H being the height of the sidewall an

Abstract: A wheel assembly includes a rigid wheel and an airless flexible tire with certain performance characteristics of a pneumatic tire. The rigid wheel includes a central portion and a plurality of circumferentially spaced mounting elements removably attached to a radially outer margin of the central portion. The tire is mounted on the wheel and engages the mounting elements such that portions of the tire not engaging the mounting elements are separated radially from the wheel by a space. The tire is configured such that portions of the tire not engaging the mounting elements flex inwardly toward the wheel when subject to ground engaging pressure, thereby minimizing ground penetration and soil disruption. The tire may include one or more tension elements embedded in the tire to increase the tire's strength and resilience.