B29C2035/1658

Active Cooling System for Manufacturing Composite Structures
20220072815 · 2022-03-10 ·

A composite manufacturing system is provided. The composite manufacturing system comprises a fiber placement head, a compaction roller associated with the fiber placement head, and a temperature regulation system associated with the compaction roller. The temperature regulation system is configured to actively control a temperature of the compaction roller. The temperature regulation system comprises a number of temperature sensors, a cooling system, and a controller. The number of temperature sensors are configured to detect the temperature of the compaction roller. The cooling system is associated with the compaction roller and is configured to cool the compaction roller. The controller is in communication with the number of temperature sensors and the cooling system. The controller is configured to cool the compaction roller such that the temperature is below a threshold temperature.

Feedstock material for printing three-dimensional parts with crystallization kinetics control
11148374 · 2021-10-19 · ·

A method for printing a three-dimensional part with an additive manufacturing system, which includes providing a part material that compositionally has one or more semi-crystalline polymers and one or more secondary materials that are configured to retard crystallization of the one or more semi-crystalline polymers, where the one or more secondary materials are substantially miscible with the one or more semi-crystalline polymers. The method also includes melting the part material in the additive manufacturing system, forming at least a portion of a layer of the three-dimensional part from the melted part material in a build environment, and maintaining the build environment at an annealing temperature that is between a glass transition temperature of the part material and a cold crystallization temperature of the part material.

Repair of refillable or reusable polymer-based packaging

This disclosure provides economical and effective methods and apparatus for repairing scratches and scuffs on refillable bottle surfaces that minimally contaminates the bottle during the refurbishing process. In one aspect, the method comprises the steps of: a) adding at least one fluid into the polymeric packaging material such as a bottle to form at least a partially filled packaging material; and b) applying at least one heat source to an exterior surface of the at least partially filled packaging material to form a repaired polymeric packaging material. Apparatus and recycling systems that incorporate this method are also disclosed.

METHOD AND SYSTEM FOR ADDITIVE MANUFACTURING USING CLOSED-LOOP TEMPERATURE CONTROL
20210308951 · 2021-10-07 · ·

A system for additive manufacturing comprises a dispensing head for dispensing building materials on a working surface, a hardening system for hardening the building materials, a cooling system for evacuating heat away from the building materials, and a computerized controller. A thermal sensing system is mounted above the working surface in a manner that allows relative motion between the sensing system and the working surface, and is configured to generate sensing signals responsively to thermal energy sensed thereby. The controller controls the dispensing head to dispense the building materials in layers, the sensing system to generate the sensing signals only when the sensing system is above the building materials once hardened, and the heat evacuation rate of the cooling system responsively to the sensing signals.

High performance cooling system
11104054 · 2021-08-31 · ·

The present invention relates to an external cooling system for a molten film tube produced by a blown film tubular extrusion process, comprised of one or more enclosures with one or more respective cavities that directly receive a portion of cooling gas emanating from one or more associated cooling elements. Each enclosure includes a port containing a variable exhaust device and optional flow buffer, acting to maintain a pressure differential between the cavity and an adjacent inside volume of the molten film tube, adjustable to optimize molten film tube stability cooling element efficiency and spaced apart dimension between cooling elements. Additionally, at least one cooling element is provided, comprised of a divergent cooling element with a divergent cooling interface containing a cooling gas deflector spaced adjacent to the molten film tube and providing an expelled cooling gas.

Method of moulding and mould tool
20210245408 · 2021-08-12 · ·

A method of moulding (10; 20) and apparatus (108; 208; 308) therefor, in which a workpiece (100) is preheated and/or post-cooled before and/or after a moulding process, allowing optimal use of the tool for high precision moulding operations.

Cooling of build material in three dimensional printing system

A build material management apparatus for a three dimensional printing system is provided having a plurality of conduits to connect to a respective plurality of ports of at least one build material container. Processing circuitry is provided to control coupling of a 5 pump interface to the plurality of conduits to independently set, for at least two of the plurality of conduits, a given air flow parameter for cooling build material in the at least one build material container. A build material container and machine executable instructions are also provided.

APPARATUS AND METHOD FOR IMPROVED HEATING AND COOLING RATES OF A COMPOSITE CURE TOOL
20210245403 · 2021-08-12 ·

Disclosed herein is a cure tool for managing a thermal cycle of a composite component. The cure tool, in certain examples, includes a base plate comprising a work surface, for supporting the composite component, and a back surface opposite the work surface. The cure tool also includes one or more fins protruding from the back surface of the base plate and in thermal communication with the base plate. The cure tool additionally includes one or more heating elements coupled to each of the one or more fins and configured to selectively provide heat to the base plate.

SHAPING DEVICE AND PRODUCTION METHOD FOR SHAPED OBJECT
20210299939 · 2021-09-30 · ·

In a shaping device, a sheet that distends due to being irradiated with electromagnetic waves is placed a conveyor belt. An irradiator irradiates the sheet placed on and conveyed by the conveyor belt with electromagnetic waves. At least one heater heats the conveyor belt.

TAMPER RESISTANT DOSAGE FORMS

The present invention relates to pharmaceutical dosage forms, for example to a tamper resistant dosage form including an opioid analgesic, and processes of manufacture, uses, and methods of treatment thereof.