B29C51/42

Method for the three-dimensional shaping of an object from a flexible cord, a cord for carrying out the method and an object produced in this way

A method of three-dimensionally shaping articles, such as articles that are difficult to transport, includes the following successive steps: placing at least one flexible cord (1) on a former (10), the cord (1) incorporating a heating electrical resistance surrounded by at least a first set of yarns of thermoplastic polymer material; connecting the flexible cord (1) to an electrical power supply for a given duration to cause the thermoplastic polymer of at least the first set of yarns surrounding the heating resistance to soften, the cord then taking on the shape imposed by the former (10); cooling the cord; and optionally removing the former (10) in order to obtain the three-dimensional object.

Aligner manufacturing system

A system includes a heating section configured to heat a sheet of plastic to generate a heated sheet of plastic. The system includes a plate configured to secure a mold associated with a dental arch of a patient. The plate includes a locking mechanism. The mold includes feature configured to interface with the locking mechanism. The system further includes a thermoforming chamber configured to thermoform the heated sheet of plastic to the mold that is secured to the plate via an interface of the locking mechanism with the feature to generate a thermoformed sheet of plastic. The locking mechanism is configured to extend through the mold and overlap an upper surface of the mold to lock the mold in a z-direction that is orthogonal to a plane defined by the plate. The system further includes a cutting tool configured to trim an aligner from the thermoformed sheet of plastic.

SYSTEMS AND METHODS FOR PROVIDING HEAT TO ARTICLES USING HEATED FORMABLE MEDIA
20220266500 · 2022-08-25 ·

Systems and methods for providing heat to a three-dimensional article are disclosed. The method can include inserting at least a portion of the article over a form. The method can further include inserting the form and article at least partially within an article container and moving the form and article into engagement with a flexible membrane where the membrane and the article container form an airtight chamber. The method can further include exposing the airtight chamber to a pressure less than atmospheric pressure to pull the membrane against at least a portion of the article and exposing the membrane to a heated deformable media.

THREE-DIMENSIONALLY THERMO-MOLDED FOOTWEAR

Articles of footwear including a thermo-molded upper having a skin composed of one or more low melting point thermoplastic polymers. The skin may include at least one of: a base layer composed of a low melting point thermoplastic polymer and a grid layer including a yarn composed of a low melting point thermoplastic polymer. The uppers may be formed by placing a skin and an inflatable bladder into a mold cavity and heating the mold to a predetermined temperature. The inflatable bladder may be inflated such that the skin is pressed against an interior surface of the heated mold cavity to cause the skin to take on the shape of the internal surface of the mold cavity, thereby forming an upper for an article of footwear.

HELICALLY COLLAPSIBLE BEVERAGE BOTTLE
20170320611 · 2017-11-09 ·

A cylindrical bottle which collapses along helical groove, ridge and connecting rings along its sidewall. When inward force is applied along the bottle's vertical axis, the helical groove rings and connecting rings fold under the ridge rings and remain substantially “locked” under the ridge rings, thereby causing the sidewall to collapse and remain collapsed until sufficient outward force is applied. When sufficient outward force is applied along its vertical axis, the bottle extends as the distance between its helical groove rings and ridge rings lengthens. Due to the diamond-shaped cross-section of the connecting rings, in conjunction with the silicone composition of the bottle's body, the collapsing and extension of the bottle occur in sequential segments, creating a unique, playful sound and an amusing worm-like movement.

HELICALLY COLLAPSIBLE BEVERAGE BOTTLE
20170320611 · 2017-11-09 ·

A cylindrical bottle which collapses along helical groove, ridge and connecting rings along its sidewall. When inward force is applied along the bottle's vertical axis, the helical groove rings and connecting rings fold under the ridge rings and remain substantially “locked” under the ridge rings, thereby causing the sidewall to collapse and remain collapsed until sufficient outward force is applied. When sufficient outward force is applied along its vertical axis, the bottle extends as the distance between its helical groove rings and ridge rings lengthens. Due to the diamond-shaped cross-section of the connecting rings, in conjunction with the silicone composition of the bottle's body, the collapsing and extension of the bottle occur in sequential segments, creating a unique, playful sound and an amusing worm-like movement.

Method of forming patient-specific implant

Methods and apparatus are provided for forming a patient-specific surgical implant based on mold system. The apparatus comprises a forming tool and a mold that may be generated using imaging and processing techniques and rapid prototyping methods. The mold apparatus includes at least two non-adjacent surface features for securing an implant forming material (such as a titanium mesh) during the forming process, enabling the implant forming material to be stretched beyond its elastic and thus permanently deformed with the correct patient-specific curvature. The implant may include one or more anatomic surface features for guidance and registration when transferring the implant to a patient.

METHOD FOR HOT-FORMING A THERMOPLASTIC MATERIAL AND IMPLEMENTATION FACILITY

A method for shaping a preform made from thermoplastic material, and a facility for implementing the method, comprising the following steps: a) providing a preform made from thermoplastic material having a surface; b) supplying thermal energy to the preform by radiation in such a way as to make it ductile; and c) shaping the ductile preform inside a forming mould. Step b) further involves simultaneously spraying a gaseous fluid onto the surface of the preform in order to preserve the surface.

Curved lenses and related methods
09759850 · 2017-09-12 · ·

Curved lenses and methods for making curved lenses are described. One embodiment of a method of making a curved lens includes curving a lens blank made of a linear polarizer layer laminated together with a plurality of polymeric layers. The lens blank is curved by heating and pressing the lens blank between a curved rigid member and a flexible member at a pressure and maintaining the pressure for a time sufficient to allow the lens blank to conform to the shape of the curved rigid member. Methods of the invention may be used to make curved lenses with different polarization properties and curvatures.

METHOD FOR MANUFACTURING A CELLULOSE PRODUCT BY A PRESSURE MOULDING APPARATUS, PRESSURE MOULDING APPARATUS AND CELLULOSE PRODUCT
20220227027 · 2022-07-21 ·

The present invention relates to a method of manufacturing a cellulose product having a flat or non-flat product shape by a pressure moulding apparatus comprising a forming mould. The forming mould has a forming surface defining said product shape, The method comprises the steps of:

arranging a cellulose blank containing less than 45 weight percent water in said forming mould; heating said cellulose blank to a forming temperature in the range of 100° C. to 200° C.; and pressing said cellulose blank by means of said forming mould with a forming pressure acting on the cellulose blank across said forming surface, said forming pressure being in the range of 1 MPa to 100 MPa.