A method of forming a bi-injected closure, comprising the steps of: forming a cap with a top plate and a depending sidewall, in a first injection moulding phase using a first mould part, the cap formed so as to include one or more external sealing areas; changing the first mould part for a second mould part, the second mould part sealing against the or each sealing area on the cap; and forming an outer ring around the cap sidewall whilst the second mould part is sealed against the sealing area/s in a second moulding phase.

Methods and apparatuses are disclosed to mold complex shapes using a cast mold technique. A catalyst-initiated urethane can be used for these complex shapes as there is little thickness restriction on any part dimension. Moreover, urethane, once chemically activated, can be poured into cast molds with various shapes. Due to the exothermic nature of urethane, when the curing chemical reaction takes place, metal molds can be fabricated from aluminum. Cast molds, made from aluminum, utilize elastomeric seals to account for coefficients of thermal expansion.

The invention relates to a molding device (1) and a method for the manufacture of structured or semistructured composite components comprising a polymer resin (50) and a fibrous substrate (51). According to the invention, the device comprises a mold (2) comprising a bottom and a lateral surface, a part (10) that is movable along the lateral surface of the mold, comprising a compression surface (14) forming a cavity (7) with the bottom and the lateral surface (5) of said mold (2), characterized in that the movable part (10) comprises a vacuum-drawing channel (13, 23) opening into a chamber (25, 42) located above the cavity and communicating with said cavity (7).

A mold assembly including at least three pieces that are joined together by a seal. Once joined together, the mold assembly defines an interior cavity defining a shape for a baked comestible product. A comestible substance is injected into the interior cavity through an opening in the mold assembly that is either defined by one of the three pieces or by an opening in the seal between two or more of the three pieces. After baking, the pieces of the mold can be peeled away from the comestible product by breaking the seal.

A seal system includes a male body and a female body that are slidable in relation to one another in an axial direction and between which an interstice is arranged. Plastics in pasty state pass through the interstice to a chamber partially defined by at least one of the aforementioned bodies. An elastic strip is arranged in the interstice to prevent leakage of the plastics.

An actuating ring for a tire mold includes an upper sidewall portion and a lower sidewall portion providing radial and axial movement of the actuating ring relative to the upper sidewall portion and the lower sidewall portion. The actuating ring has axially upper, circumferentially extending slots and axially lower, circumferentially extending slots axially offset from the axially upper, circumferentially extending slots.

An optical lens casting gasket, wafer, and system and method that provides for more efficient formation of optical lenses employing optically functional wafers.

A cutting insert has a substantially triangular or square basic shape with a top surface and a base surface that are connected together by lateral flanks. A cutting edge is formed at the transition between at least one flank and the top surface. The cutting edge extends between cutting corners, and the cutting edge has a portion that is convex in side view of a flank. The convex portion of the cutting edge is bounded on both sides by concavely curved portions.

The invention relates to a sealing system for sealing adjacent machine parts, in particular molding tool parts for foaming vehicle parts. The sealing system comprises a sealing device for sealing adjacent machine parts and a light output device which is arranged in such a way that the light output device can illuminate a portion of the sealing device.

A seal structure is used in a mold constituted by a plurality of segments to manufacture a hollow composite material structure. In the seal structure, a seal member formed in a line shape having ends is inserted in a seal groove provided on at least one of adjacent side surfaces of the segments. A lip portion is provided at a seal upper portion of the seal member such that at least a tip end of the lip portion projects to an outside of the seal groove. When the adjacent side surfaces of the segments are coupled to each other, the seal member is crushed in a cross sectional direction by the other of the adjacent side surfaces of the segments. With this, complication of the manufacture of the composite material structure can be suppressed or avoided while realizing a satisfactory sealed state between the adjacent segments.