Disclosed herein are exemplary embodiments of linings or liners (e.g., liners with corner reinforcement, etc.), methods of providing a liner or lining for a tank, and methods and apparatus for providing additional protection and/or reinforcement at the corners of a liner or lining. In an exemplary embodiment, a method generally includes positioning and attaching one or more corner attachments at one or more corners of a liner that are formed between the bottom and the one or more sides of the liner. The one or more corner attachments may be configured to provide additional protection and/or reinforcement at the one or more corners of the liner.

A mixer gun system includes a holder cap configured to separately store components in separate chambers. The components are selectively releasable through channels fluidly communicating with the separate chambers. The components are constituent materials for a bone cement mixture. A body forms a mixing chamber and is configured to receive the holder cap. The mixing chamber includes an opening corresponding with the channels for the separate chambers. A piston is disposed within the mixing chamber. A plunger is coupled to the piston and is configured to be biased toward the mixing chamber such that when the components are released into the mixing chamber a pressure developed by a biased motion of the plunger and piston infuses the components to form bone cement. Upon resetting the plunger and the piston, the bone cement is dispensed from the mixing chamber by the same biased motion. Methods of use are disclosed.

A method of detecting faults and ensuring integrity of membranes having magnetically functionalized particles, including moving a magnetometer over the membrane to measure at least one magnetic property, mapping the location of the measured properties, identifying anomalies among measured properties including the location of such anomalies, and repairing the membrane at the location where anomalies are identified.

A dispensing system has a sterilizable chamber. At least one robotic arm assembly and a dispensing device are within the sterilizable chamber. The dispensing device comprising a first dispensing element and a second dispensing element. The first dispensing element is connectable to the second dispensing element The at least one robotic assembly is configured to move the dispensing device. An external control device is connected to the at least one robotic arm assembly and is configured to control the at least one robotic arm assembly. The first dispensing element is configured to dispense a structural material and the second dispensing element is configured to dispense a biological material.

A system for operating handheld three-dimensional filament extrusion device is provided. The system includes a housing with an inlet and an outlet. A Bowden style mechanism is coupled to the housing and has a motor coupled to a filament engagement mechanism. A filament holder is coupled to the housing and transfers the filament to the Bowden style mechanism. A 3D drawing device defines a pathway that receives filament from the outlet and transfers the filament to a heated section. The drawing device includes a nozzle coupled to the heated section and an actuator. A controller having a processor is responsive to an actuation of the at least one actuator for causing the motor to rotate in a first direction to move the filament through the inlet and outlet to the drawing device and to cause the heated section to at least partially melt the filament moving through the drawing device.

Disclosed are methods for forming and adhering an entrained polymer structure to a substrate. The methods include providing a substrate configured to receive application of a molten entrained polymer. A 3 A molecular sieve entrained polymer in molten form is applied in a predetermined shape, to a surface of the substrate, to form a solidified entrained polymer structure on the substrate. The entrained polymer includes a monolithic material formed of at least a base polymer and 3 A molecular sieve. The surface of the substrate is compatible with the molten entrained polymer so as to thermally bond with it. In this way, the entrained polymer bonds to the substrate and solidifies upon sufficient cooling of the entrained polymer.

A method of recycling a PET-containing material comprises: (1) providing a polymer crystallizer comprising at least one heating element, and at least one blower; (2) providing an MRS extruder having an MRS section comprising a plurality of satellite screws; (3) providing a vacuum pump in fluid communication with the MRS section; (4) grinding and washing the PET-containing material; (5) heating the PET-containing material in the crystallizer to at least partially dry the PET-containing material; (6) shearing the PET-containing material in the MRS extruder to produce a PET-containing melt; (7) increasing a surface area of the PET-containing melt by distributing the PET-containing melt across a plurality of satellite screws in the MRS extruder; (8) drawing off vapors from the PET-containing melt by reducing the pressure in the MRS section with the vacuum pump; (9) collating the PET-containing melt in the MRS extruder; and (10) extruding a recycled PET-containing material.

A three-dimensional shaping device includes: a stage having a shaping surface on which a shaping material is to be stacked; a dispensing unit configured to dispense the shaping material toward a shaping region on the shaping surface; a position changing unit configured to change a relative position between the dispensing unit and the stage; a first heating unit configured such that a relative position between the first heating unit and the stage changes together with the dispensing unit, configured to cover the shaping region at a position facing the shaping surface when viewed along a stacking direction of the shaping material, and configured to heat the shaping material stacked in the shaping region; and a control unit configured to control the dispensing unit, the first heating unit, and the position changing unit to stack layers of the shaping material in the shaping region and to shape a three-dimensional shaped object. The control unit controls the first heating unit based on a facing distance indicating a distance between the stage and the first heating unit in the stacking direction when the three-dimensional shaped object is shaped.

A method and apparatus is disclosed for additive manufacturing and three-dimensional printing, and specifically for extruding tubular objects. A print head extrudes a curable material into a tubular object, while simultaneously curing the tubular object and utilizing the interior of the cured portion of the tubular object for stabilizing and propelling the print head.

A supply of build material such as a spool or cartridge is instrumented with a data tag that includes information about the build material. A three-dimensional printer, or a tag reader in communication therewith (directly or indirectly), can read the information from the tag for a determination as to how to use the build material during fabrication of a three-dimensional object.