B29C51/268

Former to trim press automated sheet delivery system and method

A thermoformable sheet transfer system is provided having at least one frame, and upstream conveyor, a sheet cutter, and a downstream sheet manipulator. The upstream conveyor is configured to deliver a series of shots of formed articles in a thermoformed sheet from an exit end of an article forming station. The sheet cutter is carried by the at least one frame provided proximate the conveyor downstream of the article forming station and is configured to cut a leading edge of the formed articles and sheet sufficiently formed to index within dies of an article trim press. The downstream sheet manipulator is carried by the at least one frame and is configured to transport the leading edge and the sufficiently formed articles and sheet for delivery in sequential shots from downstream an article forming station to upstream an article trim station. A method is also provided.

TRIMMING OF CONTOURED POLYMERIC PANELS
20220040903 · 2022-02-10 ·

A method for trimming a thermoformed panel comprises the steps of opening a thermoforming mold to reveal the thermoformed panel, attaching a robotic arm holding means to the thermoformed panel, removing the thermoformed panel from the thermoforming mold by the robotic arm holding means, repositioning the robotic arm holding means over a trimming table, the table comprising a cutting router affixed to the table bed, moving the robotic arm holding means relative to the cutting router in directions to trim all edges of the panel to required panel dimensions, moving the robotic arm and trimmed panel to a panel collection station, and depositing the trimmed panel at the collection station, wherein the directional movement of the robotic arm is controlled by input from 3-dimensional drawing software of the final shape of the thermoformed panel, and wherein the thermoformed panel is of a polymeric material.

Methods for orthodontic appliance fabrication and orthodontic appliances made thereby

A dental aligner and methods and systems for manufacturing the dental aligner. A boundary contour is defined in a two-dimensional space based on an edge of a model aligner in a ruler disc. The boundary contour may be measured on a grid in which the model aligner is formed. The information pertaining to the boundary contour in the model is transferred to a flat workpiece. The boundary contour may follow the patient's gingival margin. A trench is formed in the flat workpiece based on the boundary contour measured in the model aligner. The flat workpiece including the trench is deformed. Deforming the trench forms at least a portion of the edge of the dental aligner and may include a trim boundary. The aligner may be separated from the workpiece at the trim boundary. The model aligner and dental aligner may vacuum thermoformed from the same mold.

ABDOMINAL DRESSING WITH MECHANISM AND MEANS FOR FASCIAL CLOSURE

A system for treating a deep abdominal wound. The system includes a wound dressing. The wound dressing includes a visceral-protective layer, a compressive layer, and a sealing layer. The visceral-protective layer is configured to be positioned in an open abdomen. The compressive layer is configured to be disposed proximate to the visceral-protective layer. The compressive layer includes a pattern of voids configured for anisotropic collapse of the compressive layer when under negative pressure. The sealing layer is configured to form a sealed space in the open abdomen. A negative pressure source configured to provide negative pressure to the compressive layer.

THERMOFORMED ABRASION-RESISTANT MULTILAYER OPTICAL FILM AND METHOD OF MAKING THE SAME

A method of making a shaped abrasion-resistant multilayer optical film includes providing a curable composition comprising, based on the total weight of components a) to d) components: a) 87 to 96 weight percent of urethane (meth)acrylate compound having an average (meth)acrylate functionality of 2 to 4.8; b) 2 to 12.5 weight percent of (meth)acrylate monomer having a (meth)acrylate functionality of 1 to 2, wherein the (meth)acrylate monomer does not comprise a urethane (meth)acrylate compound; optionally c) 0.5 to 2 weight percent of silicone (meth)acrylate; and d) optional effective amount of photoinitiator. The curable composition is coated onto an MOF. Optionally, the curable composition to is at least partially dried. Next, the curable composition or the at least partially dried curable composition is at least partially cured to provide an abrasion-resistant multilayer optical film. Lastly, the abrasion-resistant multilayer optical film is thermoformed using a female mold having a mold surface. At least a portion of the mold surface has a radius of curvature of 58 to 76 mm and a maximum depth of 13 to 20 mm.

Abdominal dressing with mechanism for fascial closure

A system for treating a deep abdominal wound. The system includes a wound dressing. The wound dressing includes a visceral-protective layer, a compressive layer, and a sealing layer. The visceral-protective layer is configured to be positioned in an open abdomen. The compressive layer is configured to be disposed proximate to the visceral-protective layer. The compressive layer includes a pattern of voids configured for anisotropic collapse of the compressive layer when under negative pressure. The sealing layer is configured to form a sealed space in the open abdomen. A negative pressure source configured to provide negative pressure to the compressive layer.

Method for producing a shaped sheet of wrapping
20210197321 · 2021-07-01 · ·

Described herein is a method for producing a shaped sheet of wrapping, including a hollow portion and a perimetral edge that extends along a pre-set profile, said method comprising the steps of: laying a sheet of wrapping on a treatment surface having a forming cavity; forming said sheet of wrapping within said forming cavity so as to reproduce the shape said hollow portion thereon, without subjecting said sheet of wrapping to deformation by stretching; cutting said formed sheet of wrapping along said pre-set profile for producing said perimetral edge and obtaining said shaped sheet of wrapping.

The method is characterised in that the cutting step envisages the use of a laser beam according to a particular cutting mode.

Process for cutting a water-soluble web

Process for cutting a water-soluble web in a cross-machine direction. Each cutting cycle contains at least two speeds. A first speed matches that of the speed of the water-soluble web and is also the speed at the point of cutting, and a second speed is faster than the speed of the water-soluble web in the machine direction and is the speed at a point in-between two cutting actions.

MULTIPLE COMPARTMENT CONTAINER HAVING AN INTERFACE DEVICE FOR MIXING CONTENTS AND METHOD TO PRODUCE SUCH CONTAINER

The container is suitable for the separate packaging and storage of at least two contents, which need to be combined in the preparation of a ready-to-use product. Two container bodies are assembled by using an interface device as intermediate connecting element. A first connector and a second connector are used to form the device. A mixing mechanism is formed when coupling an inserting part of one of the connectors with an annular bearing portion of the other connector. The interface device includes an element, typically a puncturing structure, for releasing an internal passage initially sealed by a closure member, allowing communication between a first compartment and a second compartment. The respective connectors are thermoplastic pieces each integrally secured to a corresponding plastic container body, preferably by induction sealing using a metal medium.

INSERTABLE AND PREFABRICATED ATTACHMENTS FOR AN ORAL APPLIANCE
20210113304 · 2021-04-22 ·

A dental appliance includes an interior shape that substantially conforms to a dental arch of a patient, a hollow portion forming a cavity, and an object bonded to the dental appliance and inserted into the cavity. The object provides structural strength to the dental appliance at a location of the hollow portion and does not interfere with a fit of the dental appliance onto the dental arch of the patient.