A device and a process for manufacturing a composite part, the device comprising four molding mandrels that can be arranged in a mold arrangement in which they form a mold for the composite part, as well as a locking mandrel configured to lock the molding mandrels in the mold arrangement and to be extracted from between the molding mandrels to release the molding mandrels from their mold arrangement. The locking mandrel extends from one longitudinal end of the molding mandrels to another opposite longitudinal end of the molding mandrels.

A device for preparation of composite for on-site pipeline reinforcement includes: a temperature control stirring unit, an infiltration unit, and a vacuum unit communicated in sequence, the infiltration unit includes a spindle, reinforced fiber cloth, a flow-guiding net, and a vacuum bag film sleeved outside them, the spindle is stopped by two baffles, an adhesive feeding joint and an adhesive discharging joint are disposed at two ends of the spindle, respectively, the adhesive feeding joint and the adhesive discharging joint each includes an inner joint and an outer joint, sealing discs disposed at a junction between the inner joint and the outer joint, an outer wall of the inner joint and an outer side of the baffle are covered by a flow-leading net, and the flow-guiding net covered on the outer side of the baffle extends from an edge of the baffle into the adhesive storing compartment of the baffle.

An actuatable flow media for controlling a flow rate of a liquid through the flow media, the actuatable flow media comprising a base having a plurality of base cavities formed therein, at least one aperture formed in each base cavity defining a liquid flow path for the entry of liquid into or exit of liquid from the flow media; a flexible membrane arranged in spaced relation with the base and defining a liquid flow path through the flow media; and an elastically deformable element arranged in each base cavity and extending between the base and the flexible membrane for actuation between at least a first configuration in which the element is substantially undeformed and the liquid flow path through the at least one aperture is open and a second configuration in which the element is substantially deformed and the liquid flow path through the at least one aperture is closed.

An actuatable flow media for controlling a flow rate of a liquid through the flow media, the actuatable flow media comprising a base having a plurality of base cavities formed therein, at least one aperture formed in each base cavity defining a liquid flow path for the entry of liquid into or exit of liquid from the flow media; a flexible membrane arranged in spaced relation with the base and defining a liquid flow path through the flow media; and an elastically deformable element arranged in each base cavity and extending between the base and the flexible membrane for actuation between at least a first configuration in which the element is substantially undeformed and the liquid flow path through the at least one aperture is open and a second configuration in which the element is substantially deformed and the liquid flow path through the at least one aperture is closed.

A composite manufacturing system and method are provided. The composite manufacturing system comprises a press and a bladder. The press has an upper portion having a desired shape for a composite structure and a lower portion configured to receive layers of composite material. The bladder is associated with the upper portion of the press and is configured to reach a superplastic state when heated such that the bladder forms to the composite structure by applying heat and pressure to the layers of composite material. The bladder cools without appreciable shrinkage, applying a desired amount of pressure to the composite structure during the entire cooling cycle. Once one composite structure is formed using the bladder, the bladder may be reused to form similar structures.

Sinusoidal shaped member units and support member units are parts that form pre-stressed assemblies having flexural properties. Sinusoidal shaped members are relaxed material members that have been elastically deformed. Support members maintain the elastically deformed state of the sinusoidal shaped members. The sinusoidal shaped members and support members are organized into pre-stressed curvilinear assemblies containing stored elastic potential energy that is equal to the work done by the forces that deformed their pre-stressed structure. The assemblies' sinusoidal shaped members and support members are adapted to use materials having exceptional mechanical properties and flexural strength. This includes nano-composites. The assemblies' pre-stressed state enhances its mechanical, electrical and structural performance. The size, number, density and possible geometric configurations of the sinusoidal shaped member units and support member units within an assembly/structure is vast. Products of this sinusoidal building system have mechanical and structural applications and can be manufactured using an automated process.

The improved mold assembly for cultured marble molding is provided. The mold assembly can comprise a male mold portion and a female mold portion. The assembly can further comprise a molding tool. The molding tool can have a side wall having an upper curved s and a lower curved portion. The molding tool can be constructed from a flexible and/or soft material. The lower curved portion of the molding tool can be coated with a gel coat having a first color. The molding tool can facilitate molding of a countertop having a recessed bowl portion having a color different from a counter portion of the countertop.

The improved mold assembly for cultured marble molding is provided. The mold assembly can comprise a male mold portion and a female mold portion. The assembly can further comprise a molding tool. The molding tool can have a side wall having an upper curved s and a lower curved portion. The molding tool can be constructed from a flexible and/or soft material. The lower curved portion of the molding tool can be coated with a gel coat having a first color. The molding tool can facilitate molding of a countertop having a recessed bowl portion having a color different from a counter portion of the countertop.

An example mandrel for processing a part is described including an inner core having a material with first thermal properties, and an outer layer surrounding the inner core. The outer layer includes a material with second thermal properties different than the first thermal properties to enable uniform pressure distribution within the mandrel. An example method for fabricating a composite part is described including placing a base composite layer into a cavity of a tooling surface, inserting a mandrel into the cavity, applying a skin to the mandrel and the base composite layer forming a package, enclosing the package in a vacuum bag and curing the base composite layer and the skin such that during curing a pressure due to thermal expansion of one of the inner core and the outer layer is distributed by the other, and removing the mandrel from the cavity of the tooling surface following the curing.

An example mandrel for processing a part is described including an inner core having a material with first thermal properties, and an outer layer surrounding the inner core. The outer layer includes a material with second thermal properties different than the first thermal properties to enable uniform pressure distribution within the mandrel. An example method for fabricating a composite part is described including placing a base composite layer into a cavity of a tooling surface, inserting a mandrel into the cavity, applying a skin to the mandrel and the base composite layer forming a package, enclosing the package in a vacuum bag and curing the base composite layer and the skin such that during curing a pressure due to thermal expansion of one of the inner core and the outer layer is distributed by the other, and removing the mandrel from the cavity of the tooling surface following the curing.