Abstract: The present invention relates to an injection moulding system for forming an oven liner, particularly of the type that is used with microwave ovens. Oven liners are of particular benefit when used inside microwave ovens. They improve hygiene as where food spills or spurts onto the oven liner rather than an interior of the microwave oven.

Abstract: A mold system and method for forming a casting article for investment casting is disclosed. The mold system includes a mold for receiving therein a selected core chosen from a plurality of varied cores. The mold includes a plurality of separable mold portions that are coupleable together to create the mold and configured to form a sacrificial material from a sacrificial material fluid about the selected core. At least one selected separable mold portion of the plurality of separable mold portions includes a set of varied interchangeable versions of the at least one selected separable mold portion. Each varied interchangeable version of the selected separable mold portion is configured to accommodate a different core of the plurality of varied cores. A number of systems for controlling a temperature of the mold are also disclosed.

Abstract: A core lifter having lifter bar with an elongate blade which carries a coupling head received in an elongate lifter bar coupling receiver formed in the base configured to permit pivotable, swiveling and/or translational misalignment or tolerance compensation during core lifter assembly, installation, and operation in a plastic formable material molding apparatus, including during mold cycling advantageously preventing core lifter binding and extending core lifter life. A preferred lifter has a lifter bar formed of a blade to which a lifter bar coupling ball is attached that is received in an elongate longitudinally extending channel having a transverse cross section complementary to the ball defining a bearing race in which the ball is received enabling slidable pivoting, swiveling and slidable movement of the ball and blade relative thereto including while the ball and blade are slidably moving along the race in a longitudinal or lengthwise direction relative to the base.

Abstract: A molded a product includes a body including a hollow interior region and a plurality of openings in communication between an interior region and an exterior of the body. The body is formed from a resilient material that enables the product to stretch and retract to an original shape without tearing or breaking when removing a first part of a core of a mold from a first portion of the interior region through a first opening of the plurality of openings and a second part of the core of the mold from a second portion of the interior region through at least one of the first opening and a second opening of the plurality of openings, the first and second parts of the core of the mold being larger than each of the plurality of openings.

Abstract: In accordance with at least one aspect of this disclosure, a concrete form can include a forming wall including a concrete contact side and a bracing side and a plurality of braces movably connected to the bracing side of the forming wall, wherein the plurality of braces move between a retracted position and a bracing position.

Abstract: This invention relates to modular building construction apparatus and in particular to a mold having movable framework used to construct a basic building module where any miss-alignment at the junction of framework elements is enough to make the imperfection noticeable. If the imperfection is a ridge it will be readily apparent on the inside surface of the formed building module and it will not be disguised by painting over it. What is disclosed is a movable corner arrangement for a mold for forming at least one of the inner corner surfaces of a moldable building module. The inner mold for a moldable building module has an upper support panel for forming the ceiling surface of the building module and a plurality of movable side walls that depend from the upper support panel using flexible peripheral edge elements. The side walls have mold facing side wall surfaces movable to a position to form corresponding internal wall surfaces of the moldable building module.

Abstract: A leaning grid device, also referred to as a fence assembly, for a miter saw includes at least one upper leaning grid which is a movable leaning grid having an upper support surface for a work piece and at least one lower leaning grid having a lower support surface for the work piece. The lower leaning grid is also a movable leaning grid and may move between two support positions. The lower support surface and the upper support surface are in a same plane when the lower leaning grid is located at the support positions and the lower support surface and the upper support surface are in different planes when the lower leaning grid is located at a position that is between the support positions.

Abstract: An inner mold body includes a first pair of side walls opposite one another, each of the first pair of side walls having a pair of engagement members attached thereto, a second pair of side walls opposite one another; wherein each of the second pair of side walls is adjacent to each of the first pair of side walls, and a separation mechanism in contact with each of the second pair of side walls.

Abstract: A pair of mold cores (51, 52) for molding an undercut portion (P1) in a holder (30) installed inside a movable mold (13) are connected to and supported by a retaining piece (40) which is moved in the demolding direction, and at the time of demolding, the respective mold cores (51, 52) are guided by guide means (33, 34) from the molding position, where they are contacted with each other, to the mold release position, where they are separated from each other, being moved from one end side to the other end side of the retaining piece (40), in the mutually opposite directions so as to pass each other in the back and forth direction.

Abstract: A collapsible bladder has flexible outer walls and at least one strut inside the enclosure. The strut is connected to the outer walls and controls the shape into which the enclosure may be collapsed.

Abstract: Embodiments of a mold insert assembly and methods of use are disclosed herein. A mold insert assembly includes, but is not limited to a driving member that moves between a retracting position and an extending position, a plurality of first-segment members engaging the driving member and moving between a first retracted position and a first extended position and a plurality of second-segment members proximate the plurality of first-segment members and configured to move between a second retracted position and a second extended position as the driving member moves to the extending position. The plurality of first-segment members and second-segment members cooperate to form a substantially liquid-tight periphery when the driving member is in the extending position. The plurality of first-segment members second-segment members are configured to move towards the first and second retracted positions, respectively when the driving member moves towards the retracting position.

Abstract: Mold for molded parts with internal undercuts that comprises a core of the mold with two complementary parts (both fitted one inside the other), providing the possibility of axial displacement and turning among them, establishing the external element part various slots where the parallel forms that the internal element part has in its peripheral area are inserted. Thus, thanks to the axial displacement and the turning of both elements, the parallel forms come out of from the slots and deviate from the coping enabling the ejection of the molded part without being forced.

Abstract: A layup mandrel includes a shell having a tool surface on which plies may be laid up. The shape of the shell is changed by an actuator.

Abstract: The invention provides a device for injecting a resin into at least one fiber layer of a fiber-reinforced product (5) to be manufactured, comprising a mold (2, 3) having a mold cavity (4) that is surrounded by a mold wall for abutment of the product thereagainst in the closed condition of the mold. A rigid part (3a, 3b, 3c, 3d) of the mold wall is movable with respect to another part of the mold wall in the closed condition of the mold so as to ensure a continued abutment of the movable part of the mold wall with the products when shrinkage of the resin caused by curing thereof takes place subsequent to the injection process.

Abstract: Method for manufacturing a composite fiber component (1) the method comprising the following method steps: forming a moulding core (4) comprising a hollow profile (15) made of segments (16a . . . d) in order to establish an external geometry of the moulding core (4), wherein the segments (16a . . . d) of the moulding core (4) each extend in the direction of the longitudinal axis of the moulding core (4) and are each constructed so as to be pivotable about an axis running in the longitudinal direction of the moulding core (4), between a folded position (A), and an unfolded position (B) of the hollow profile (15) of the moulding core (4), wherein the segments (16a . . . d) are constructed so as to be coupled to one another via connections (18a . . . d, 19a . . .

Abstract: Exemplary embodiments are directed to a mold for producing hollow-cylinder-type molded parts, having an external mold portion, that determines an inner cavity of a molded part to be manufactured. The external mold portion has a first cylindrical mold, which extends in a rotationally symmetrical manner about a first axis, and a hemispherical mold having a diameter equal to a diameter of the first cylindrical mold directly adjoins one of the two ends of the cylindrical mold along the first axis, wherein a second cylindrical mold adjoins the hemispherical mold in radial alignment. The hemispherical mold has a spherical cap, the second cylindrical mold is rotatable together with the spherical cap about a second axis which is arranged at an angle with respect to the first axis, and the second cylindrical mold is arranged concentrically with respect to the second rotational axis.

Abstract: Method and apparatus for casting a concrete product with a substantially horizontal slipform casting process, wherein the concrete mix is fed at least in one step through a limited cross-section moving progressively along with the cast, whereby the height of the product forming part (1) is changed during the cast. The invention also comprises a product forming part (1) having an adjustable height.

Abstract: Especially when it is necessary to provide voids (29) for panelling or glazing and a material formed by wood and glue conglomerate particles in one or three layers. These materials are received in separate metering devices that are able to move over a bench, being placed over the mould in accordance with a specific sequence of discharge and movements. It is defined by a fixed perimeter frame (10, 32) with apertures (12, 33) of the dimensions of the door, in which slides, snugly, a first framework (11, 34) and a second framework (14, 35) that can be moved inside the first framework and whose hollow is occupied by a series of pads or blocks (21, 22, 36, 37, 38) that can move independently through the action of respective cylinders (39, 40, 41) in order to occupy the raised position, forming the voids (15, 16, 29) for panelling or glazing, if any. The fixed frame (10, 32) has a moveable interior part (78) for producing oversized doors.

Abstract: A collapsible core device for molding articles around the core device in a mold cavity includes an expansion member, a discontinuous first sleeve and a discontinuous second sleeve. When the expansion member is fitted within the first and second sleeves, the expansion member and the first and second sleeves form a substantially continuous, flush top molding surface with the first and second sleeves.

Abstract: A lens molding gasket comprising one integral membrane serving as a mold shell, and a seating for a removable mold shell.

Abstract: A connector element for connecting frame parts at a joint location in a bicycle frame is made of a single part of structural fiber based material, typically carbon fiber material, after reticulation in a mold exploiting the expansion of a core on which windings of fiber fabric material are provided, to obtain the application of a uniform radial pressure on the layers of fiber based material. In one embodiment, the connector element defines a bicycle bottom bracket and tubular extensions extending therefrom for connection to elements of the bicycle frame.

Abstract: A formwork system comprises an outer formwork, an inner formwork and an opening box-out. The opening box-out is rigidly connected to the outer formwork. The opening box-out can be reduced or enlarged in size by hinging a movable frame to its rigid inner frame. In the erected state of the formwork system, the opening box-out projects into an opening of the inner formwork. The opening of the inner formwork corresponds to the size of the recess to be formed on a concrete body. The inventive formwork system permits concreting of different wall thicknesses without changing the formwork system. Fitting of the opening box-out into a double-headed formwork can be omitted. Recess sizes and contours can be made more exact since the adjustable opening box-out is pressed on the inner edge of the opening in the second formwork shell.

Abstract: The invention concerns a device for making soft cheese or fresh paste cheese comprising at least a first set of perforated cheese-moulds and at least a second set of perforated cheese-moulds arranged in a chamber. The invention is characterized in that said first and second sets of cheese-moulds are designed to be fitted one into the other.

Abstract: A compensating element (23) is permanently connected to a first formwork element (21) and a second formwork element (22) wherein the compensating element (23) has openings formed like elongated holes on the side along its axial direction through each of which one tube penetrates which terminates in one housing each on both sides of the compensating element (23). The housings can be displaced along the tube and be moved via a rod assembly. When the compensating element (23) is displaced into a formwork dismantling position, the formwork elements (21, 22) and the compensating element (23) are released from the concrete surface and the entire device can be moved (FIG. 2).

Abstract: A connector element for connecting frame parts at a joint location in a bicycle frame is made of a single part of structural fiber based material, typically carbon fiber material, after reticulation in a mould exploiting the expansion of a core on which windings of fiber fabric material are provided, to obtain the application of a uniform radial pressure on the layers of fiber based material. In one embodiment, the connector element defines a bicycle bottom bracket and tubular extensions departing therefrom for connection to elements of the bicycle frame.

Abstract: A concrete casting sliding corner system includes a pallet for defining the cross-sectional shape and thickness of the sidewalls and an inside core mold disposed interiorly of the pallet and an outside mold jacket disposed outwardly of the pallet. The mold core and mold jacket are movable between an open release position and a closed casting position. A corner forming section includes a wedge-shaped member movable vertically between an upward casting position and a downward release position. Alignment means is included to coordinate the corner wedge and members of the mold core to prevent misalignment due to lack of coordination between the interior mold components.

Abstract: A method for making a poured-in-place concrete building having a plurality of rooms includes assembling an outer form around a periphery of a floor and positioning a plurality of unitary room forms within the periphery of the floor. Each unitary room form may include a plurality of rigid panels connected together along respective adjacent sides thereof defining a closed shape with an open bottom and an open top and having a draft thereto to facilitate removal as a unit. The method may also include pouring concrete between the outer form and adjacent unitary room forms and between adjacent unitary room forms to provide outer concrete walls and interior concrete walls, respectively, to define the rooms. Further, each of the unitary room forms may be removed as a unit from adjacent concrete walls, the outer form may be disassembled, and a roof may be provided over the rooms.

Abstract: A mold core is provided for producing an overmolded flexible valve. The mold core comprises a mold body, a piston assembly, a piston retaining means, a collet bit positioning means and at least two collet bits. The mold core has a cylindrical void in a distal end and has a pressure means communicated with the cylindrical void. The piston assembly has a piston head sized and adapted for axial movement in the cylindrical void, with a piston shaft extending axially from the head. The shaft is tapered from a larger first diameter at one end to a smaller second diameter at the other end. The piston retaining means has a bore through it to allow insertion of the piston shaft. Each of the at least two collet bits has an inner cylindrical tapered surface segment, the taper of the surface segment being essentially the same as the taper in the piston shaft, and an outer cylindrical surface segment, sized and adapted to be inserted inside the flexible valve.

Abstract: A wedge apparatus for use with molds and a mold utilizing at least one wedge apparatus. The wedge apparatus includes a pair of attachment portions, each having an attachment surface and a wedge surface, a wedge portion, and a shaft. The wedge portion is slidably attached to the attachment portions and has a center portion terminating in a pair of center edges disposed at opposite angles to the wedge edges such that the center surface and the wedge surfaces form a substantially continuous mold surface. The shaft is attached to the center portion and extends through an opening through a cross member to maintain the center edges of the wedge portion in alignment with the wedge edges of the attachment portions.

Abstract: A mold for a cylindrical product with an inner gear formed by injection molding is disclosed. The mold includes a plurality of sets of first and second inner slide cores each having inner molds with under-cut forming portions. The first and second inner slide cores move in a direction perpendicular to a center line of the inner cores at different velocities.

Abstract: A leak resistant hinge is provided for pivotally connecting adjacent concrete form sections to permit angular adjustment and movement of the form sections. The hinge includes first and second L-shaped hinge brackets which pivot about a pivot member to which both brackets are mounted. A gasket member is situated on the exterior of the first and second hinge brackets to seal the hinge while simultaneously permitting the first and second hinge brackets to pivot about the pivot member. Each hinge bracket is mountable to a respective adjacent concrete form section to permit adjacent form sections to pivot as needed to obtain the desired concrete form configuration.

Abstract: The present invention is embodied in a duct assembly system for the shaping and support of skins against a bulkhead, including an articulating skin expanding member conforming, in an extended position, to a cross section of the bulkhead, and a support means attached to the expanding member for insertion of the expanding member into the skins and alignment of the expanding member adjacent to the bulkhead.

Abstract: A molding device for a register of synthetic resin adapted for use in adjustment of air flow, wherein a pair of outer frame members, a plurality of spaced adjustment blades and a link member of the register are separately formed and assembled during a molding process without. manual work required heretofore for connecting the link member with the adjustment blades for interconnection thereof.

Abstract: The invention relates to a pipetting aid for exerting suction on liquids. The usual previous "Peleusball" has disadvantages when handling and with regard to washing out. The object of the invention is to create a pipetting aid through constructive change, which is functionally safe and easy to handle and which at the same time allows uncomplicated cleaning of the inside.

Abstract: A method is described for forming a prestressed composite which comprises steps of applying matrix material to the fibers, selectively tensioning the fibers, winding the fibers on an adjustable mandrel and curing the matrix material with the fibers under tension.

Abstract: The formwork assembly (10) is used to cast tubular or part-tubular structures, one particular application being in the lining of mine ore passes with a concrete lining (54). The assembly includes an internal framework (12, 14, 32; 100, 102, 104) and external, flexible formwork (34, 130) supported by the framework. The framework can be adjusted between a casting condition (FIG. 1) in which it supports the formwork (34, 130) at the inner periphery of the structure which is to be cast and an inwardly collapsed condition in which it supports the formwork (34, 130) at a position spaced inwardly from such inner periphery. In the case of a mine ore pass lining, the assembly is moved upwardly in increments after each casting operation.

Abstract: A lightweight metal or plastic form that when collapsed can be installed on the inside of a temporarily suspended manhole casting and expanded by a mechanism having numerous arms connected at a center point and extending outwardly to spaced and positioned spring encasing brackets that compensate and adjust slightly the pressure that the arms project to the outer walls of a slotted circular shaped form. By a cam effect the handle locks into a over center position that is maintained without the aid of clamps or additional hardware so that the form will stay in position until the user lifts the handle upwardly which removes the device from the manhole and at the same time collapses the form. The inventions primary purpose is to provide a seal between a temporarily blocked up manhole metal casting and the manhole precast concrete riser rings so that cement may be applied around the outside of the manhole and vibrated into position without danger of any cement contaminating or plugging the sewer system.

Abstract: An articulated core blade assembly provides improved release of undercuts and similar structures in mold cavities. The articulated core blade assembly includes a retainer secured to an ejector plate, a lifter which moves the product and releases the undercut and a pivot arm which couples the lifter to the retainer. A first knuckle joint couples one end of the pivot arm to the retainer and a second knuckle joint couples the other end of the pivot arm to the lifter. The knuckle joints provide limited pivoting motion about parallel, spaced-apart axes. The articulated core blade assembly may be utilized in a broad range of injection molding machines utilizing plastics, metals and other injection molded materials.

Abstract: An inside corner form for forming an inside corner of a wall structure for casting concrete includes a central member for forming the corner, side members for forming portions of the walls adjacent the corner, an actuator for expanding and contracting the inside corner form and a lid for five sided pours. Slide lugs are provided to engage the central and side members such that the members are maintained in their proper orientations, while still permitting the members to slide relative to one another during the expansion and contraction of the form. A flowable material is injected between the central and side members for lubrication and to form a barrier to prevent grout from seeping between the members of the inside corner form and lid.

Abstract: Disclosed is a molding apparatus which includes(A) a mold for making an undercut part which includes coring sandwiched between top and bottom cavity halves, where the coring is divided into three or four sections; and(B) a press for(1) separating the coring from the top and bottom cavity halves; and(2) separating the sections from each other.

Abstract: An injection-molding tool for producing pipe fittings with an internal groove has bead-forming segments of the core alternating with one another on respective bell crank levers at alternating bell-crank levers being fulcrummed at fixed locations on a core sleeve while the other bell-crank levers are fulcrummed on a ring movable axially on the core sleeve. The actuator is a hydraulically or pneumatically moved actuating sleeve having grooves or slits receiving radial arms of the levers with abutments or end surfaces axially staggered so that one group of segments is retracted inwardly and axially first to allow the second group of segments to be swung inwardly.

Abstract: A die casting mold part, which may be mounted on or applied to a die casting mold to provide for the molding and shaping of a variety of projections from the molded article and a simple and sure release from the mold of such projections including a plurality of projections lying closely adjacent to one another and extending outside the mold separation plane. The mold part includes segments, which are received in a bore that guides them and holds them together to form a die casting cavity, the segments together thus forming a mold at one of their ends. On their opposite end they flare outwardly and are mounted pivotally on a central control shaft so that they are caused to be opened where together they formed a mold, by relative movement between the control shaft and bore.

Abstract: Apparatus and method for forming a three dimensional injection molded article having a pair of passageways extending therethrough and with a locking indentation in each passageway using first and second mold parts each having open ended cavities having an end wall and a plurality of sidewalls formed therein wherein a pair of fixed arms are mounted on the end wall of the first mold part so that they are spaced from each other and each of the sidewalls, have portions extending out of the open ended cavity and have contoured surfaces and wherein a pair of movable arms are mounted on the end wall of the second mold part for rotation about fixed axes and are spaced from each other and from each of the sidewalls and wherein each movable arm has a contoured surface adapted to be moved into a continuous contacting relationship with the contoured surface of one of the fixed arms and when in the contacting relationship to provide protruding portions to form said locking indentations.

Abstract: A male mold member includes a base or body having a central projecting core with an intermediate peripheral tapered seat between the core and body. The body, seat and core are intercepted by a plurality of cylindrical bores spaced uniformly about the male mold member and inclined toward the core axis. The bores receive core blades having cylindrical bodies. The core blades are exteriorly shaped in the area of the core to form sections which continue the contour of the core and seat. The blades may each have a thread matrix in the core area. After molding, a stripper bushing, engaging the molded product, pushes the product along with the core blades to a position at which the core blades are collapsed so that the product may be stripped. In the molding position the stripper bushing has a tapered bore opening which fits snugly against the tapered seat portions on the blades to orient the blades to proper position and immobilize them.

Abstract: Disclosed herein is a mold assembly for molding a plastic article having a recess formed therein. The mold assembly includes a lower mold having a cavity formed therein; an upper mold adapted to be put on the lower mold to close the cavity; a core adapted to be put in the cavity; positioning means including a first member connected to a given portion of the cavity of the lower mold and a second member connected to the core, the first and second members being coupled when mated; and guide means for guiding the core in a manner to facilitate the mating of the second member with the first member.

Abstract: A sintering device includes separable mould walls which together define a mould cavity and a mould core which is positioned within the cavity to define an undercut mould surface. The core includes a hollow frusto-pyramidal central support formed with guideways and a plurality of core segments mounted for slidable movement within the guideways whereby the core is radially expandable and contractable. The segments include a plurality of arc-surface segments alternating with trapezoidal segments. The mould walls and the core include passages for introducing steam and air into the cavity. The passages of the core place the hollow interior of the central support in communication with the mould cavity.

Abstract: Blood flow in the aorta and pulmonary artery of a mammal, most typically a human, is measured volumetrically by a non-invasive, ultrasound apparatus. The apparatus (10) includes a tracheal tube or probe with of flexible tubing (11) having a transducer assembly (21) mounted at one end the tube. The transducer assembly (21) is disposed to transmit ultrasound in selected directions. Electrical conductors (24) extend the length of the probe from the transducer assembly. Improved means is provided to positively locate the probe in the trachea and to urge the ultrasound transducer assembly (21) into intimate contact with the inner wall of the trachea.

Abstract: A primary forming member is associated with a secondary supporting structure to allow rapid construction of elongate concrete structures of uniform cross-section by removing the primary forming member before the concrete mass supported by the secondary supporting structure is set or self-supporting. The primary forming member provides plural spaced forming arches, foldable for transport, and supported for vertical motion on a carriage providing for horizontal motion along the axis of symmetry of the formed structure. The primary forming member supports a plurality of spaced support arches of the secondary supporting structure with a plurality of cross elements therebetween to support rigid panels that create a forming surface for plastic concrete and remain as a part of a formed concrete structure to provide insulation. The forming system forms a self-supporting arched concrete surface with spaced depending arches by being sequentially moved axially therealong.

Abstract: A molding machine for casting a concrete product includes a stationary support system, a rotatable apparatus and a pair of bearings supporting the rotatable apparatus on the stationary support system. The rotatable apparatus rotates 180 degrees between an upward position and a downward position. The rotatable apparatus includes a mold having a configuration form, exterior wall-forming panel, interior wall-forming panels, and interior corner-forming panels, all of which hang from corresponding trolleys which ride on corresponding rails to form the walls of the concrete product when all of the panels are against the product's configuration form. Further included is a floor panel which cooperates with the interior wall-forming panels and the interior corner-forming panels and is supported thereon by an internal structure. The floor panel, the interior wall-forming panels, and interior corner-forming panels are positioned below the exterior wall-forming panels and spaced therefrom to contain the concrete therein.

Abstract: Cylinder block molding apparatus includes two series of parallel and alternate molding plates for partitions. The plates extend in planes perpendicular to the axis of an engine shaft. Each series of molding plates is mounted, respectively, on a support capable of sliding parallel to the axis of the engine shaft relative to the cylinder block between a molding position where mutually confronting molding faces of two consecutive plates bear against one another and a lifting position where the molding faces are moved apart as a result of sliding of the supports.