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| Number | Title | Issue Date |
| 7530544 | Panel forming system including construction component having hinged portion engaged with set portion forming panel forming surfaces against which curable materials are shaped A construction component is provided comprising a set portion, a hinged portion, and a hinge. The construction component defines an extruded cross-sectional profile defining a panel forming face configured such that an un-cured material may be cured against and subs... | 05/12/2009 |
| 7264761 | Method of making a molded plastic elbow An improved molded plastic elbow and a related mold assembly and manufacturing method are provided, wherein the elbow defines an internal flow path having a smoothly radiused inside turn. The elbow is formed by injecting plastic material into a tubular mold cavity f... | 09/04/2007 |
| 7153125 | Molded plastic elbow An improved molded plastic elbow and a related mold assembly and manufacturing method are provided, wherein the elbow defines an internal flow path having a smoothly radiused inside turn. The elbow is formed by injecting plastic material into a tubular mold cavity f... | 12/26/2006 |
| 7004443 | Concrete void former A void former comprises a core assembly having at least two body members. The body members are removably coupled together to define the desired shape of a void to be formed in a concrete slab. After the void has been formed in the concrete slab, the body members may... | 02/28/2006 |
| 6907709 | Concrete construction material and method of use A method for constructing concrete building units comprises forming and pouring a concrete floor on a floor platform, providing interior wall forms on said concrete floor, providing door frames, conduit and piping on said interior wall forms, providing a ceiling for... | 06/21/2005 |
| 6840018 | Elongate bodies for use in pre-cast panel forming systems Elongate bodies for use in providing architectural and structural features in pre-cast panels are provided. The elongate bodies may-comprise a cross-section comprising a set portion, a hinged portion, and hinge. The set portion and the hinged portion are configured ... | 01/11/2005 |
| 6442976 | Liquid cooling of glassware molds A system and method of cooling glassware molds by directing liquid coolant to the blank or blow mold halves of a glassware forming machine through an enclosed pivotal rotary union-type structure. A coolant manifold is carried by each pivotal mold arm, and... | 09/03/2002 |
| 6116568 | Apparatus for forming voids under concrete floors A reinforced box-like structure for forming a void area in a concrete formation. The structure includes a bottom panel having a plurality of spaced apart, parallel base partitions and a top panel having a plurality of spaced apart, parallel top partitions... | 09/12/2000 |
| 5843324 | Reusable form A form for establishing an opening in a wall poured between a first wall form and a second wall form in a wall. In one embodiment the form comprises a substantially rigid body having an outwardly extending portion at each end for forming a recess adjacent... | 12/01/1998 |
| 5788874 | Leak resistant hinge for use in concrete structure fabrication 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 whi... | 08/04/1998 |
| 5709769 | Duct assembly system 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 mea... | 01/20/1998 |
| 5281127 | Articulated core blade assembly for use in an injection molding machine 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 under... | 01/25/1994 |
| 5217731 | Injection molding tool with retractable bead-forming segments 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... | 06/08/1993 |
| 5125617 | Adjustable radius walers for forming Forms for a cylindrical wall of poured concrete are made of plywood sheets nailed to horizontally-spaced beams, to which are clamped transversely arranged walers. The walers are assembled in strings and the string are in parallel spaced relationship. The ... | 06/30/1992 |
| 4958800 | Locking hinge mechanism A locking hinge mechanism for concrete forms includes parallel hinge strips connected together by hinges positioned at intervals along the length of the strips. Each hinge includes provision for a wedge lock which, when fully inserted, positions the hinge... | 09/25/1990 |
| 4956142 | Apparatus and method for molding three dimensional articles 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... | 09/11/1990 |
| 4890993 | Apparatus for forming concrete structures 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 su... | 01/02/1990 |
| 4821994 | Molding for the retention of a tie in the concreting of a precast concrete part A molding for the retention of a tie during the concerning of a precast concrete part is provided. In the removal of the molding from the recess of the precast concrete part, the molding is drawn off from the tie, so that the tie head projects into a rece... | 04/18/1989 |
| 4799982 | Method of molding monolithic building structure Methods of manufacturing a modular, monolithic, integrated, multi-layered, mold building structure including the steps of constructing a dismantleable mold having an outer rigid matrix and an inner inflatable plug, wherein the inside dimensions of the mat... | 01/24/1989 |
| 4765938 | Apparatus and method for the application of a plastic liner to a flanged pipe elbow An injection molding apparatus is used to line flanged pipe elbows. The pipe elbow is clamped by the flanges to two pivotted platens, one of which has a curved mandrel to shape the inside of the elbow lining.... | 08/23/1988 |
| 4729541 | Formwork for round or polygonal construction There is disclosed a formwork for round or polygonal constructions with a formwork face having an adjustable curvature or circumference. The formwork has a chain of booms which are spaced apart from the formwork face and are composed of individual boom po... | 03/08/1988 |
| 4721280 | Injection moulding core for pipe bends Injection moulding core for pipe bends, with at least one straight pipe terminal portion, wherein the bend core is divided in various segments (a) which are preferably wedge-shaped when viewed sideways and which are connected by appropriate elements prefe... | 01/26/1988 |
| 4708632 | Injection moulding mould A mould which is used for the production by injection moulding of fittings which have an inner annular groove includes a divisible outer mould, a mould core and a mould ring. The mould core has a plurality of segments which can be folded together. In orde... | 11/24/1987 |
| 4705258 | Sheathing for pouring a container fabricated from concrete An improved sheathing for use as a covering on a polygonal container having a plurality of adjustable support members for supporting the sheathing thereon. The sheathing comprises at least two adjacent pivotally connected panels having a vertical joint th... | 11/10/1987 |
| 4614324 | Mold for producing concrete pipe A mold is provided for use in the production of concrete pipe sections. The mold has an inner mold part including an arch-shaped mold member; a pair of substantially L-shaped side mold members each flexibly connected to an adjacent end of the arch-shaped ... | 09/30/1986 |
| 4569500 | Concrete ramp form A concrete ramp is, in cross section, in the form of an inverted U and is made in sections. The form includes a base the upper surfaces of which are inclined relative to the horizontal at an angle wanted for tread surface of the ramp. A pair of inner and ... | 02/11/1986 |
| 4520989 | Concrete core-wall form and stripping assembly therefor What is proposed is an inwardly articulated form assembly for forming concrete core-wall structures having a rectangular shape in which a primary form structure having fixed seamless corners is presented to the wet concrete; after the concrete has set, a ... | 06/04/1985 |
| 4520988 | Concrete core-wall form and stripping assembly therefor What is proposed is an inwardly articulated form assembly for forming concrete core-wall structures having a rectangular shape in which a primary form structure having fixed seamless corners is presented to the wet concrete; after the concrete has set, a ... | 06/04/1985 |
| 4519570 | Inside corner concrete form unit A form unit to cast the inside surfaces of a corner of a concrete structure has a pair of form panels disposed generally perpendicular to each other and an elongated corner member disposed between the adjoining edges of such panels with an actuator having... | 05/28/1985 |
| 4465257 | Concrete forming structure having a double hinge filler A concrete forming structure including a collapsible form having at least one form panel section and a rigid corner adjacent thereto and with the panel section having a forming face. A two-way hinge filler structure between the section and the rigid corne... | 08/14/1984 |
| 4463925 | Concrete form structure including one-way escape hinge A concrete forming structure including a collapsible form having at least one form panel section. The section having a marginal flange structure mounted thereon at one side and vertically spaced slots on the marginal flange structure for receiving wedge b... | 08/07/1984 |
| 4462787 | Cantilevered mandrel assembly A rotatable mandrel for making cylindrical molded articles has a plurality of aligned identical and collapsible cylindrical mandrel sections supported upon a cantilevered shaft, the cylindrical sections having a truss supported relatively thin exterior wa... | 07/31/1984 |
| 4447035 | Joining concrete form panels to cast an inside corner wall structure For casting a concrete inside corner wall structure, the corner is defined by a corner member to extend lengthwise of the corner with the adjacent edges of a pair of form panels that are disposed generally perpendicular to each other being butted against ... | 05/08/1984 |
| 4426060 | Apparatus and method for constructing modular concrete shell housing units Apparatus and method for constructing a modular concrete shell housing unit in which complementary counterpart form assemblies are detachably connected on a supporting concrete floor slab at their inner adjacent longitudinally extending framing members, t... | 01/17/1984 |
| 4296909 | Apparatus for forming recess around a pickup bolt of a concrete body In order to form in a concrete body during casting thereof a part-spherical recess around the head of a pickup bolt having a stem embedded in the body, an apparatus is employed comprising a pair of like elements each having an outer surface complementary ... | 10/27/1981 |
| 4279399 | Concrete beam molding apparatus A cast concrete form work apparatus for constructing bridge beams in which form work partitions 5, 6 and 10, 11 having work surfaces 6, 12 are tangentially adjoined by a tube member 1 and adjustable apparatus is provided to hold in a fixed angular relatio... | 07/21/1981 |
| 4266750 | Device for manufacturing boots and the like of elastomeric material A mold for molding a boot or similar footwear from an elastomeric composition and simultaneously lining the footwear with a fabric, has first and second shells each having a cavity which complements the cavity of the other to form a large cavity which cor... | 05/12/1981 |
| 4258897 | Structure for forming concrete troughs in the ground A method and structure in which a Y- or V-shaped trench is dug in the ground for spatially receiving a smaller, complentarily shaped form that is supported in the trench by re-enforcing rods or the like that remain in the set-up concrete when the form is ... | 03/31/1981 |
| 4180233 | Building construction system A building construction system uses a mold set up at a construction site so that the external part of the mold is spaced clear of the internal part. Building elements including those which are functional in the construction operation are arranged around t... | 12/25/1979 |
| 4177032 | Molding core for the manufacture of hollow bodies consisting of fiber-reinforced synthetic resin A molding core, consisting of a plurality of flexible metal plates, for the manufacture of cylindrical hollow bodies or wound sections of fiber-reinforced synthetic resin. The metal plates are fixed to support members which in turn are connected to frames... | 12/04/1979 |
