B29C33/0033

Composite structure reinforcement utilizing thermal properties of forming elements
11577432 · 2023-02-14 ·

Forming systems and assemblies as disclosed herein comprise a composite material comprising a structural component and a resin component combined with the reinforcing component. A forming element is disposed within the composite material and has a coefficient of thermal expansion that is greater than that of the composite material. The forming element is positioned to provide a desired integral structural reinforcement and/or surface feature to the composite. The composite material may comprise one or more passages extending from a surface thereof to the forming element. The composite material may be cured by heat to take a set configuration and then allowed to cool. The cooling of the composite material and the forming element enables the forming element to contract relative to the composite material and become delaminated therefrom to facilitate easy removal, and thereby provide an improved method and assembly for making structural reinforcing features in composite structures.

Bicycle wheel rim
11541574 · 2023-01-03 · ·

A composite rim for a bicycle wheel that has a wall of structural fibers incorporated in a thermosetting polymeric material and a plurality of spoke attachment seats. The composite material includes at least one layer of woven bi-directional fibers where some fibers are in a nominal direction substantially parallel to the circumferential direction of the rim and some fibers are substantially orthogonal to the circumferential direction of the rim.

Non-corrosive, Double Gooseneck, Gaseous Pressure Equalization Vent for Large Liquid Storage Tanks
20220411180 · 2022-12-29 ·

A vent structure for large volume liquid storage tanks having a double gooseneck shape with vent openings facing downward, formed as a single structure from a mold tool with multipart extractable cores for forming the structure from corrosive resistant materials without a need for substantial post machining.

Tooling assembly and associated system and method for manufacturing a porous composite structure

A tooling assembly for manufacturing a porous composite structure. The tooling assembly includes a first tooling member and a second tooling member. The first tooling member includes a first body that defines a first internal volume and a first inlet. The first inlet is fluidly coupled with the first internal volume. The first tooling member also includes a first tooling surface that defines a plurality of first perforations that are fluidly coupled with the first internal volume. The second tooling member includes a second body that defines a second internal volume and a second inlet. The second inlet is fluidly coupled with the second internal volume. The second tooling member also includes a second tooling surface that defines a plurality of second perforations that are fluidly coupled with the second internal volume.

Molded product, electric motor, apparatus and method for manufacturing molded product
11539276 · 2022-12-27 · ·

A molded product in which a parting line can be disposed at an inconspicuous position on the appearance of the product. The molded product includes a main body having a cylindrical shape and a hole penetrating through the main body in a radial direction, or a protrusion protruding in the radial direction from the main body, and in the molded product, a parting line corresponding to a matching surface of molds is formed in the molded product, and the parting line has a first line extending from the hole or the protrusion to one side in a circumferential direction of the main body, and a second line extending from an end point on the one direction of the circumferential direction of the first line to an end portion in an axial direction of the main body.

METHOD OF MANUFACTURING A MICROFLUIDIC ARCHITECTURE
20220371232 · 2022-11-24 ·

A method of manufacturing a microfluidic architecture having at least one channel disposed therein. Steps can include pouring an uncured polymeric material into a mould to produce a first layer; at least partially curing the first layer; and forming the at least one channel by disposing a support material on the first layer; pouring an uncured polymeric material onto the first layer to form a second layer to thereby encapsulate the support material; and at least partially curing the second layer such that the first layer and second layer together form the microfluidic architecture; wherein the support material undergoes a phase change during the process of forming the at least one channel. The phase change of the support material enables the material to be more easily disposed and/or removed after formation of the channel.

METHOD AND MOULD FOR MAKING HOLED OBJECTS FROM PLASTIC MATERIAL
20220371235 · 2022-11-24 ·

A method for making an object (2) from plastic material, having a wall (21) and a through hole (22) formed in the wall (21), comprises the following steps: preparing a dose (20) of extruded plastic material; preparing a mould (1), having a first half mould (11) and a second half mould (12), mutually movable along a longitudinal axis (A1), wherein the first half mould (11) includes a body (111) and a plunger (112), the plunger (112) being movable relative to the body (111) between a retracted position and an advanced position; positioning the dose (20); closing the mould (1) to form a closed moulding space (V); moving the plunger (112) from the retracted position to the advanced position to squeeze the dose (20) so that the plastic material is forced to occupy the moulding space (V).

Continuous vulcanisation plant

A plant for the continuous vulcanisation of mixtures of natural or synthetic latex inside a plurality of vulcanisation moulds aligned close to each other, each including: a base and a lid able to be removably coupled; an advancing mechanism for advancing the moulds along guides inside a vulcanising oven; and a sprayer for spraying the mixture inside the bases before entry into the vulcanising oven. The plant includes: an assembly set and a disassembly set of the moulds, belonging respectively to the input station and to the output station of the vulcanising oven; a first transport mechanism for transferring each base from the disassembly set to the assembly set; a second transport mechanism for transferring each lid from the disassembly set to the assembly set. The vulcanising oven includes a tunnel with a radiofrequency set for vulcanising the mixture.

SHOWER HEAD AND METHOD OF OPERATION TO PRODUCE A SUSPENSION OF WATER DROPLETS IN AIR

A shower head is supplied with an annular airflow which surrounds a column of water travelling through a chamber to produce a suspension of water droplets in air, the diameter and length of the chamber and the diameter of the water column are selected in combination with the fluid flow parameters to operate the shower within a defined parameter space corresponding to the non-axisymmetric Rayleigh breakup regime, where the water column remains intact and spaced apart from the chamber wall for the entire length Lc of the chamber, where the airflow perturbs the water column within the chamber causing it to disintegrate into droplets downstream of the chamber outlet, and where multiple chambers are moulded on non-parallel axes with elastomeric linings facilitating withdrawal of the mould tool.

Acoustic attenuation panel comprising a front skin and a central structure

An acoustic attenuation panel for a propulsion assembly includes an acoustic front skin having perforations, and a central structure formed from partitions arranged perpendicularly in order to make up cells, wherein the front skin and the central structure form the panel which is made as a single piece and is provided for directly covering a surface of an element of the propulsion assembly forming a rear skin which closes the cells of the central structure at the rear.