B29C49/0042

Inflation and sealing device with inclined components
10328653 · 2019-06-25 · ·

The present disclosure is related to an inflation and sealing device that can include a material support at an angle to a guide for an inflation and sealing mechanism. The device can have a material support with a discontinuous surface. The device may also have low- or non-stick surfaces and bump-off elements to prevent sticking to a cooling region or exit from the device.

SEQUENTIAL BIAXIAL STRAIN OF SEMI-CRYSTALLINE TUBES

The present disclosure provides a processing method for a polymer material to create a medical device with improved mechanical properties. This method allows better tailoring of the material's mechanical properties, hence a device to withstand greater structural loads in vivo. The method comprises providing an extruded polymer tube having an initial diameter and an initial length along a longitudinal direction, and longitudinally, bi-directionally straining the extruded polymer tube in a mold from the initial length to an expanded or extended length. The mold comprises a plurality of stationary heating elements. After longitudinally straining the tube, it is radially expanding in the mold from the initial diameter to an expanded diameter.

Container for product with thin wall

The present invention concerns a container having a body formed by wall or walls with a greater diameter S1 and at least a neck with a diameter S2, container made from a semi-crystalline PET, having a wall thickness of less than 100 m, substantially in the middle of its body and having a complex, three dimensional shape convenient for gripping, this part having a diameter S3.

SNORKELING TUBE STRUCTURE AND METHOD OF MANUFACTURING THE SAME
20190054988 · 2019-02-21 ·

A snorkeling tube structure with a tube body and a partition portion is provided. The tube body is formed along an axis and has an outer surface and an inner surface which encircles the axis to define an air passage; the axis includes a curved section. The partition portion is formed integrally with the tube body along the axis, and disposed on the inner surface of tube body to divide the air passage into an intake passage and an outtake passage. A method of manufacturing a snorkeling tube structure is also provided, including the following steps: forming a parison including a first passage and a second passage; placing the parison in a mold cavity; injecting air into the first and second passages to inflate the parison towards a wall of the mold cavity; and removing the inflated parison from the mold to get a snorkeling tube structure.

Sequential biaxial strain of semi-crystalline tubes

The present disclosure provides a processing method for a polymer material to create a medical device with improved mechanical properties. This method allows better tailoring of the material's mechanical properties, hence a device to withstand greater structural loads in vivo. The method comprises providing an extruded polymer tube having an initial diameter and an initial length along a longitudinal direction, and longitudinally, bi-directionally straining the extruded polymer tube in a mold from the initial length to an expanded or extended length. The mold comprises a plurality of stationary heating elements. After longitudinally straining the tube, it is radially expanding in the mold from the initial diameter to an expanded diameter.

Method and apparatus for fabricating containers

A plurality of preforms are positioned in relation to each other and an incompressible fluid is injected into a cavity of each of the preforms to induce them to expand into containers. A portion of the surface of each of the preforms comes into abutment with a portion of the surface of at least one other preform during the injecting step, such that the expansion of the preforms is constrained.

Methods of Making a Film of Dynamically Vulcanized Thermoplastic Elastomeric Materials

Methods and systems for making a film made of dynamically vulcanized thermoplastic elastomeric material are provided herein. The subject methods and systems achieve dimensional stability of an elastic film by applying thermal treatment as part of the film making process and enhance the shrinkage of the film by intentionally with stretching the film while hot and freezing the film in the stretch. The systems and methods are useful in controlling shrinkage of DVA post film extrusion.

SEALING DEVICE FOR CONTROLLING THE PRESSURE OR FLOW RATE IN A TUBE, AND METHOD FOR MANUFACTURING A TUBE
20180304515 · 2018-10-25 · ·

The sealing device (2) comprises a tubular sleeve (3) that can be radially deformed between a rest configuration and an inflated configuration; a fluid inlet fluidly fluidically connected to an inner chamber delimited by the tubular sleeve (3); an inner reinforcement casing (8) arranged around the tubular sleeve (3) and comprising a first inner reinforcement layer (9) consisting of reinforcement wires (10) wound helically around the tubular sleeve (3) in a first winding direction, and a second inner reinforcement layer (11) consisting of reinforcement wires (12) wound helically around the first inner reinforcement layer (9) in a second winding direction; and an outer reinforcement casing (21) arranged around the inner reinforcement casing (8), the outer reinforcement casing (21) comprising at least one outer reinforcement layer (22) consisting of reinforcement wires (23) extending parallel to the axis of extension (A) of the tubular sleeve (3).

Method and apparatus for the fabrication of a container, such as a beverage container

A method for the fabrication of a container (802), comprising the steps of: providing a preform (705), said preform being substantially tubular in form and being provided with a closed end (709), a cavity (707), and an open end (710) communicating with said cavity (707); positioning at least one restriction device (711, 714) relative to the preform (705) so as to define at least one restriction zone and restrict expansion of the preform (705) therein; injecting a pre-determined volume of an incompressible fluid (800) into the cavity (707) of the preform (705) via the open end (710), provoking the preform (705) to plastically deform by expansion, said preform (705) expanding freely in at least one expansion zone outside said at least one restriction zone; and Using for the fabrication of a beverage container (802).

Method of making convoluted coated braided hose assembly
09993957 · 2018-06-12 · ·

A seamless convoluted hose assembly. The assembly includes: a tubular inner liner having an outer surface, an inner surface, and an inner liner wall therebetween which defines a passageway. The assembly further includes a helical coil or a plurality of annular loops which produce convolutions in the outer surface of the tubular liner when the tubular inner liner is forced through the helical coil or plurality of loops under heat and pressure.