Abstract: A print device that includes an ink line and an imaging device is configured to capture images of at least a portion of the ink line. The device is also configured to classify air pockets within the ink line by: receiving one or more images from the imaging device; using an air pocket detection model to identify an air pocket within the ink line; and using a classification model to determine one or more characteristic labels for the air pocket. The print device will use the characteristic labels to take an action corresponding to the air pocket.

Abstract: This document describes a method of removing air from an ink supply of a marking system, and systems that enable such removal. The system includes a valve that is fluidly connected to an ink supply system of a marking system. The valve is fluidly positioned in a conduit that leads from an opening in a conduit of the ink supply system to an air bubble reservoir. Activating the valve withdraws air from ink in the conduit toward an air bubble reservoir or vacuum source as the ink moves toward a printhead of the marking system.

Abstract: Systems comprising: printheads configured to apply ink marks to a sheet of media; sensor(s) configured to scan the sheet of media to obtain scan data; and processor(s) configured to analyze the scan data to (i) determine whether an amount of ink spread on at least one side of the sheet of media is within a range of values, and or (ii) determine whether a difference between a first average line width associated with a first side of the sheet of media and a second average line width associated with a second side of the sheet of media is greater than a threshold value. The system is configured to perform a print job based on results of the analyzing.

Abstract: A method for operating a printing system, comprising: identifying at least one area in an electronic document for which one or more primers are to be applied prior to an application of ink on a sheet of media during a print job (wherein the primers are formulated to have different surface tensions); determining, for each pixel in the at least one area, an amount of each of the one or more primers that is to be applied based on a characteristic of content in the electronic document; generating the print job using the amount of each of the one or more primers determined for each said pixel in the at least one area; and instructing a printer to perform the print job.

Abstract: In one aspect, a print device that includes an ink line and an imaging device is configured to capture images of at least a portion of the ink line. The device is also configured to classify air pockets within the ink line by: receiving one or more images from the imaging device; using an air pocket detection model to identify an air pocket within the ink line; and using a classification model to determine one or more characteristic labels for the air pocket. The print device will use the characteristic labels to take an action corresponding to the air pocket. In a second aspect, a print device includes an ink line and a sensor configured to measure capacitance of a first portion of the ink line. The print device is configured to monitor, based on the sensor data, capacitance of the first portion of the ink line. The system will identify an air pocket in the ink line in response to detecting a decrease in the capacitance of the first portion of the ink line.

Abstract: The present system provides a tamale press that is simple to operate and allows a person to make 75-100 tamales per hour. The device is designed to be used to make tamales and avoids the disadvantages of a tortilla press. The device comprises a base with a cavity for receiving a portion of masa to be pressed. A top portion is hingedly coupled to the base and includes a protruding section that approximately matches the dimensions of the cavity in the base. The top portion is closed and a pivoting handle is used to apply pressure to the device, causing the protruding section to press and spread the masa to the borders of the cavity in the base. When the handle and top are lifted, the formed tamale is removed and the next tamale can be produced.

Abstract: A heat exchanger includes a plurality of interconnected separator members that respectively include a first surface and an opposite second surface. The separator members respectively include an array of wave features. Also, the separator members are stacked and disposed in an alternating arrangement with the first surfaces of adjacent separator members facing each other and attached at the respective wave features, and with the second surfaces of adjacent separator members facing each other and attached at the respective wave features. The heat exchanger also includes a plurality of first flow passages for first fluid flow and second flow passages for second fluid flow. The second fluid and the first fluid are configured to exchange heat through the separator members.

Abstract: A heat exchanger includes a separator member that divides a first flow passage from a second flow passage. The heat exchanger also includes a plurality of first hollow members that extend across the first flow passage at respective non-orthogonal angles. The plurality of first hollow members are fluidly connected to the second flow passage. Moreover, the heat exchanger includes a plurality of second hollow members that extend across the second flow passage at respective non-orthogonal angles. The plurality of second hollow members are fluidly connected to the first flow passage.

Abstract: A heat exchanger includes a plurality of interconnected separator members that respectively include a first surface and an opposite second surface. The separator members respectively include an array of wave features. Also, the separator members are stacked and disposed in an alternating arrangement with the first surfaces of adjacent separator members facing each other and attached at the respective wave features, and with the second surfaces of adjacent separator members facing each other and attached at the respective wave features. The heat exchanger also includes a plurality of first flow passages for first fluid flow and second flow passages for second fluid flow. The second fluid and the first fluid are configured to exchange heat through the separator members.

Abstract: A heat exchanger includes a plurality of interconnected separator members that respectively include a first surface and an opposite second surface. The separator members respectively include an array of wave features. Also, the separator members are stacked and disposed in an alternating arrangement with the first surfaces of adjacent separator members facing each other and attached at the respective wave features, and with the second surfaces of adjacent separator members facing each other and attached at the respective wave features. The heat exchanger also includes a plurality of first flow passages for first fluid flow and second flow passages for second fluid flow. The second fluid and the first fluid are configured to exchange heat through the separator members.

Abstract: A heat exchanger includes a separator member that divides a first flow passage from a second flow passage. The heat exchanger also includes a plurality of first hollow members that extend across the first flow passage at respective non-orthogonal angles. The plurality of first hollow members are fluidly connected to the second flow passage. Moreover, the heat exchanger includes a plurality of second hollow members that extend across the second flow passage at respective non-orthogonal angles. The plurality of second hollow members are fluidly connected to the first flow passage.

Abstract: A heat exchanger includes a separator member that divides a first flow passage from a second flow passage. The heat exchanger also includes a plurality of first hollow members that extend across the first flow passage at respective non-orthogonal angles. The plurality of first hollow members are fluidly connected to the second flow passage. Moreover, the heat exchanger includes a plurality of second hollow members that extend across the second flow passage at respective non-orthogonal angles. The plurality of second hollow members are fluidly connected to the first flow passage.

Abstract: A heat exchanger includes a separator member that divides a first flow passage from a second flow passage. The heat exchanger also includes a plurality of first hollow members that extend across the first flow passage at respective non-orthogonal angles. The plurality of first hollow members are fluidly connected to the second flow passage. Moreover, the heat exchanger includes a plurality of second hollow members that extend across the second flow passage at respective non-orthogonal angles. The plurality of second hollow members are fluidly connected to the first flow passage.

Abstract: A heat exchanger includes a plurality of interconnected separator members that respectively include a first surface and an opposite second surface. The separator members respectively include an array of wave features. Also, the separator members are stacked and disposed in an alternating arrangement with the first surfaces of adjacent separator members facing each other and attached at the respective wave features, and with the second surfaces of adjacent separator members facing each other and attached at the respective wave features. The heat exchanger also includes a plurality of first flow passages for first fluid flow and second flow passages for second fluid flow. The second fluid and the first fluid are configured to exchange heat through the separator members.

Abstract: An ink-based digital printing system includes an imaging member having an imaging surface; a dampening fluid metering system, the dampening fluid metering system being configured to apply a layer of dampening fluid to the imaging surface; an inking system, the inking system being configured to apply radiation-curable ink to the imaging surface of the imaging member after the dampening fluid layer is patterned according to digital image data using a laser imaging system; and an offset member, the offset member forming a first ink transfer nip with the imaging member, the imaging member and the offset member being configured for transferring the ink image from the imaging surface to an offset member surface of the offset member.

Abstract: An ink-based digital printing system includes an imaging member having an imaging surface; a dampening fluid metering system, the dampening fluid metering system being configured to apply a layer of dampening fluid to the imaging surface; an inking system, the inking system being configured to apply radiation-curable ink to the imaging surface of the imaging member after the dampening fluid layer is patterned according to digital image data using a laser imaging system; and an offset member, the offset member forming a first ink transfer nip with the imaging member, the imaging member and the offset member being configured for transferring the ink image from the imaging surface to an offset member surface of the offset member.

Abstract: An environmental control system (ECS) includes an air cycle machine with an expansion turbine and a condenser having a cold air inlet connected to receive air from the expansion turbine. The condenser has hollow, internally finned hot bars positioned at the cold air inlet to prevent ice formation at the cold air inlet.

Abstract: A teeth cleaning implement includes a dental floss supply reel located within a housing that serves as a handle for maniuplating the implement during a teeth cleaning operation. The dental floss is unwound from the reel through an elongated tubular guide that projects from the housing. The dental floss extends from the tubular guide to a second tubular guide, and through this second guide into the housing and back onto the supply reel. The exposed section of the dental floss between the two guides can be moved back and forth in the teeth spaces to achieve a teeth cleaning operation. Periodically the floss supply reel can be rotated to expose a new section of floss.

Abstract: A toy gun can be equipped with a specially configured ram for firing air-filled or water-filled balloons. The forward surface of the ram has a hemi-spheric contour, so that the ram has extensive surface area engagement with the balloon rear surface. When the ram is fired forwardly the balloon is subjected to relatively low unit area acceleration forces, so that the balloon has a lessened likelihood of rupture or excessive deformation.