Abstract: A mold for molding a lens includes a first mold part and a second mold part. The first mold part includes a substantially frustoconical guiding chamber defined therein, and a first molding surface in the substantially frustoconical guiding chamber. The second mold part includes a main body having a substantially frustoconical protrusion with a substantially cylindrical recess defined therein. The substantially frustoconical protrusion has a second molding surface in the substantially cylindrical recess. The substantially frustoconical protrusion is configured for inserting into and matingly engaged in the substantially frustoconical guiding chamber of the first mold part, thus aligning the first molding surface with the second molding surface.

Abstract: A compound mold or tooling system is designed to provide an alternative to conventional, expensive, metal molds for various plastics molding applications. The compound mold comprises a replaceable thin-walled liner, or skin-mold, defining the mold surface, temporarily bonded by vacuum means or mechanical means to a conforming backing-mold mold body supported by a rigid backing-plate. Both skin- and backing-molds are composed of suitable polymers with or without additives, fillers, reinforcements or other inclusions depending on mold requirements. The backing-plate contains standard features and fixtures common to all molds used in the particular process or of a particular geometry.

Abstract: A flexible, silicone mold having a container and a peripheral rim that defines an opening to the container. Grasping zones are disposed along the rim and the grasping zones have sufficient dimensions to permit control of the geometry of the rim and also to permit control of the horizontal positions of the two grasping zones.

Abstract: A mold releasing method for releasing a core member from a mold includes steps of: a) providing a supporting member and arranging the supporting member on the mold, the supporting member comprising a base and a number of sidewalls extending from the base to the mold, a through hole being defined in the substrate and co-axially aligned with the core member; b) providing a bolt, the bolt comprising a threaded rod extending through the through hole of the substrate and threadedly engaged with the core member; and c) rotating the bolt to move the core member to disengage from the mold.

Abstract: A mold for forming a snowman includes lower, intermediate and upper generally spherical, hollow members comprised of clear plastic. Each plastic member includes an upper aperture for filling the member with snow. The lower member includes a generally flat base portion for positioning stability and an upper connection ring adapted for secure coupling to a lower connection ring on the intermediate member. The intermediate member also includes an upper connection ring adapted for secure coupling to a lower connection ring on the upper member. The three connected members form a hollow, vertical structure which when filled with snow provides a snowman of classic shape, symmetry and proportions. The individual spherical hollow members are easily connected and disconnected, with the intermediate and upper members having apertures for receiving eye, nose, mouth and arm indicia, with the upper member further including a hat mounting arrangement in one embodiment.

Abstract: Uniformly dense, diamond-silicon carbide composites having high hardness, high fracture toughness, and high thermal stability are prepared by consolidating a powder mixture of diamond and amorphous silicon. A composite made at 5 GPa/1673K had a measured fracture toughness of 12 MPa·m1/2. By contrast, liquid infiltration of silicon into diamond powder at 5 GPa/1673K produces a composite with higher hardness but lower fracture toughness.

Abstract: In the assembly-completed state, the Lower Mold, the Outer Mold, the Upper Mold, and the “inner mold (the integral body of the Pin-holder and the Pin)” are stacked and fixed in this order from the bottom, and the Pin is coaxially inserted into the First Hole of the Outer Mold and the Second Hole of the Upper Mold. In the assembly-completed state, the molding space for molding the ceramic molded body is formed between the surface of the Pin and the First Hole, and the annular minute gap is formed between the surface of the Pin and the Second Hole. The ceramic slurry poured into the Slurry Reservoir Pres formed on the upper surface of the Upper Mold falls and flows into the molding space through the annular minute gap by virtue of the action of gravity or the like.

Abstract: The object of the invention is a process for molding an optical element such as a lens (2). According to the invention, the element is obtained by a reaction injection molding process comprising the steps of mixing at least two polymerizing reactants and forcing the obtained reacting mixture by an injection duct (5) for filling under pressure a scaled mold cavity (4) having an entry side (43) provided with a casting opening (42) and an evacuation side (44) and providing a laminated flow of mixture in a spout (6) having a progressive enlarging transversal section between the outlet opening (52) of the injection duct (5) and the casting opening (42) of the mold cavity (4), for avoiding any turbulent area in said laminated flow, said evacuation side (44) being provided with means (45) for evacuating air contained in the mixture during mold filling. The invention also covers the molding installation adapted for using such a process.

Abstract: Apparatus and method whereby coinjection molding shooting pot actuation structure is configured to be installed in a coinjection hot runner with a coinjection nozzle, the coinjection nozzle having at least two melt channels ending at the same gate. The shooting pot is preferably disposed in one of a mold cavity half and a mold core half. A shooting pot piston is configured to discharge a melt from the shooting pot. A transmission structure is configured to (i) extend through one of the mold cavity half and the mold core half, and (ii) to transmit a force to the shooting pot piston. Actuation structure is disposed on the opposite side of the mold cavity half from the coinjection hot runner, and is configured to provide the force to the transmission structure. This configuration conserves space in the mold.

Abstract: A mold includes a plurality of inserts, a molding board, a base board, a plurality of fastening members, and a plurality of washers. The inserts each has a molding surface. The molding board includes a plurality of cavities for accommodating of the respective inserts. The base board for mounting the molding board thereto has a plurality of receiving holes. The fastening members are respectively received in the corresponding receiving holes for securing the corresponding inserts in the corresponding cavities of the molding board. The washers are sandwiched between the respective fastening members and an opposite ends of the inserts to the molding surfaces.

Abstract: An apparatus and method is provided for injection molding an ophthalmic lens mold section having an optical surface and a non-optical surface opposite the optical surface. The apparatus includes a non-optical tool assembly for forming the non-optical surface of the ophthalmic lens mold section. An optical tool assembly is in opposed relation to the non-optical tool assembly and together therewith forms a mold cavity for forming the ophthalmic lens mold section. In the preferred embodiment, the optical tool assembly includes a rotatably mounted core member and an optical insert removably secured the core member. The optical insert has an optical molding surface for forming an optical surface of the ophthalmic lens mold section opposite the non-optical surface thereof. A locking mechanism having, in a preferred embodiment, a locking pin selectively movable between a first position wherein the pin allows rotation of the core member and a second position wherein the pin prevents the core member from rotation.

Abstract: A sidewall construction for casting concrete elements, said sidewall construction comprising a mold surface plate (4) defining the surface of the product to be cast and a support construction (1, 2, 3), where the mold surface plate is fixed to, whereby the support construction is formed of two horizontal aluminum profiles (1, 2) and of at least one vertical aluminum profile (3) connecting the same.

Abstract: A process of reducing friction, which is encountered in molds utilized in injection molded, solder processing, and wherein glass mold plates have mold pits etched therein. The mold pates are subjected to a heat treatment so as to smooth or round-off sharp edges along the periphery of the mold pits.

Abstract: The present invention provides a composite nozzle cap having a first part made of metal and an outer tip of a polymeric material. The first part mechanically secures the nozzle into the nozzle housing by engaging the nozzle housing and pressing against a base flange on the nozzle to clamp the flange between the first part of the nozzle housing. The second part extends away from the nozzle housing and is mechanically secured to the first part. An inner face of the second part contacts the nozzle tip to prevent melt flow between the second part of the nozzle tip. An outer face of the second part contacts the gate insert to avoid melt flow between the second part and the gate insert. As the second part is of a polymeric material, it avoids the heat transfer concerns associated with a metallic interface between the nozzle tip and the gate insert.

Abstract: An adjustable support stand is mounted on a pre-cast concrete wall panel form to facilitate the leveling of the form and the support of the form about the production plant floor. The adjustable support stand includes a frame portion that houses a threaded rod positional fixed for rotation within the frame portion to drive a vertical movement of the leg member in response to rotation of the threaded rod. The adjustable support stand further includes a clamping apparatus that detachably mounts the frame portion to the flanges of a steel beam frame member. The actuator member can be a nut welded to the top of the threaded rod to affect movement of the engaged leg member in response to manipulation with a powered or manually operated hand tool, or a gear set and an orthogonal drive shaft that transfers rotation from a hand tool to the threaded rod.

Abstract: A method of forming an optical element forming metal mold to form an optical element, having steps of: laminating a heat insulation layer 13 on a surface of the base member 11 where the optical element is formed; laminating an intermediate metal layer 14 on a surface of the heat insulation layer 13 by thermal spraying; laminating a surface forming layer 15, on which a surface shape to be transferred to the optical element is formed, on the intermediate metal layer 14; wherein the intermediate metal layer 14 is laminated in a way that parts of the heat insulation layer 13 are exposed substantially evenly from the intermediate layer 14.

Abstract: A mold 10, 30, 40 particularly for use in food preparation comprising a base 11, and a collar 12 having a continuous wall 14 that upstands from the base with a lower edge 16 of the collar abutting the base 11. The mold may be for single use with the base and the collar being formed from fiberboard and in a particular form the collar wall incorporates a releasable connection to enable opening of the collar. In one form, the collar includes tabs 25 that extend from the lower edge 16 and retaining means (18, 19, 31) which are operative to retain the tabs in relation to the base so as to retain the lower edge 16 of the collar in proximity with the base. The mold further includes in one form an insert 19 which is locatable within the mold cavity 17 and in another form a support arrangement (29, 42, 43) is provided to support the collar wall.

Abstract: A molding apparatus includes a first mold half, a first mold core received in the first mold half, a second mold half opposite to the first mold half, a second mold core and a plurality of spacers. The second mold core includes a sleeve and a core insert. The sleeve is received in the second mold core. The sleeve includes a receiving hole defined therein, and a plurality of parallel grooves defined in an inner surface in the receiving hole. The grooves are angularly equidistantly spaced from each other. The core insert is received in the receiving hole of the sleeve. The plurality of spacers is configured for being selectively disposed in the corresponding grooves. Each of the spacers is configured for being sandwiched between the sleeve and the core insert.

Abstract: A method for manufacturing a porous honeycomb structure, which comprises a mixing and kneading step, a forming and then drying step, and a firing and then cooling step of firing a dried honeycomb article to form a fired honeycomb article and then cooling the fired honeycomb article to prepare a porous honeycomb structure, wherein the fired honeycomb article is cooled from the firing temperature under a cooling condition of a temperature falling speed of 100° C./hr or less at least in a temperature region of 800° C. or lower.

Abstract: An ice tray is provided that prevents the overflow or splashing of water or thin ice out of the ice tray as water is supplied to the ice tray, or when the ice tray is shaken by an external force. The ice tray may include a plurality of receiving portions that receive water for freezing into ice pieces. An overflow preventing portion may extend upward from upper edges of the receiving portions to form a barrier to water flowing out of the ice tray. Alternatively, the receiving parts may be positioned within a corresponding plurality of location parts having water proofing walls extending upward therefrom to inhibit the unintentional flow of water or thin ice out of the receiving portions of the ice tray.