In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
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| Number | Title | Issue Date |
| 7992837 | Techniques and tools for assembling and disassembling compactable molds and forming building blocks A system includes one or more compacting wall retraction mechanisms for retracting one or more compacting walls of a compactable lightweight concrete block mold having at least two compacting walls. The compacting wall retraction mechanism(s) facilitate release of a... | 08/09/2011 |
| 7988123 | Compactable mold for forming building blocks A compactable mold comprises a main mold frame structure and plural wall structures including two end wall structures and two side wall structures. The plural wall structures define a mold cavity for forming a block from a mixture introduced into the mold cavity. At... | 08/02/2011 |
| 7665712 | Apparatus for pre-casting concrete structures An apparatus for producing one or more pre-cast concrete structures. The apparatus may include partitions that may be positioned in a side by side arrangement. The partitions may be moveable with respect to each other to facilitate installation of reinforcing materi... | 02/23/2010 |
| 7153126 | Ejector apparatus An ejector apparatus wherein, in mounting a lift core to a slide base, and in mounting an ejector core to an ejector plate, it is easy to mount the lift and ejector cores to the slide base and the ejector plate, and simultaneously perform adjustment that allows for ... | 12/26/2006 |
| 7121520 | Pre-cast concrete panels for construction of a building A formwork for precast concrete panel comprises of a quadrangle panel with a base and four side panels. The formwork (10) comprises of a base (14), which is provided with an island region (20) and/or a mound region (22), a pair of paralle... | 10/17/2006 |
| 7118369 | Corrugated pipe plant The present invention relates to an apparatus for the manufacture of corrugated pipes from thermoplastic in which mould segment halves, which complement one another in pairs, are guided together in a circuit along a mould path adjacent to an injection head, are move... | 10/10/2006 |
| 7100886 | Apparatus and methods for making a masonry block with a roughened surface Apparatus and methods are disclosed for making masonry blocks with one or more surfaces having a roughened texture resembling that of a split block or natural stone. In one embodiment, a mold comprises a plurality of walls defining at least one mold cavity adapted t... | 09/05/2006 |
| 7022839 | Heterodimeric conjugates of neomycin-chloramphenicol having an enhanced specificity against RNA targets and its preparation The present invention relates to heterodimeric conjugates of neomycin-chloramphenicol, of formula 1, their preparation and their use. Because of their heterodmieric structure, they can recognize both stem and loop of RNA motif and show binding ability to a certain R... | 04/04/2006 |
| 7014457 | Mould assembly provided with centering means Mould assembly (1) consisting of two interacting mold sections (2, 3). One mold section is provided with a seat (4) and the other mould section with a body (5, 6) that is accurately accommodated by the seat (4), the body/seat inter... | 03/21/2006 |
| 6991207 | Molds for wafer scale molding of protective caps Two molds (102, 104) are provided formed of semiconductor material. The molds (102, 104) have substantially planar working faces (108, 110) into which recesses (106, 112) are formed. In use the molds (102, 104) are pressed together... | 01/31/2006 |
| 6766998 | Molds for wafer scale molding of protective caps Two molds (102, 104) are provided formed of semiconductor material. The molds (102, 104) have substantially planar working faces (108, 110) into which recesses (106, 112) are formed. In use the molds (102, 104) are pressed together... | 07/27/2004 |
| 6000244 | Mold assembly for forming a glass sheet A mold assembly for forming a glass sheet includes a mold block having a surface for holding a glass sheet and a fibrous metal liner for covering the surface of the mold block to prevent marking of the glass sheet when held against the mold block.... | 12/14/1999 |
| 5482453 | Utensil for molding sushi rice for use in preparing nigiri-zushi Disclosed is a utensil for molding sushi rice for use in preparing nigiri-zushi, the molding utensil having a split mold having a mold member, and an outer frame for the split mold to removably fit in, the molding utensil being characterized in that the u... | 01/09/1996 |
| 5160752 | Mold for forming a tape cassette reel A tape cassette reel molding apparatus which includes upper and lower opposed molds for forming upper and lower flanges of the tape cassette reel and first and second hub molds provided between the upper and lower molds, the first and second hub molds eac... | 11/03/1992 |
| 5126095 | Method for encasing a storage tank in concrete A method and apparatus for constructing an above ground concrete encased storage tank. The apparatus has a support assembly that extends from the baseplate of a concrete form, that supports, elevates, and secures an inner storage tank from the form basepl... | 06/30/1992 |
| 4975041 | Die assembly for die casting a propeller structure A die assembly for die casting a propeller structure, such as a wax propeller pattern. The pattern, which is identical in configuration to a cast metal propeller to be produced, includes a generally cylindrical hub having an outwardly flared end and a plu... | 12/04/1990 |
| 4904177 | Vertical press for the moulding of plastics materials, particulary thermosetting plastics materials A vertical press for the moulding of plastics materials, particularly thermosetting plastics materials includes a fixed plate and a movable plate slidable on guide columns, a first fluid-operated actuator for moving the movable plate along the guide colum... | 02/27/1990 |
| 4846438 | Molding device with hand operable mold A molding device includes at least two comonent form boards 12,13 and a wedge-shaped spacer board 14 between them. An operating mechanism is associated with the form boards and the spacer, and moves them relative to one another. The operating mechanism in... | 07/11/1989 |
| 4826419 | Apparatus for relaxing stresses at the end of oedometric compacting of a mixture of an aggregate and a binder The invention relates to a process for relaxing lateral stresses at the end of shaping by compacting of a block constituted by an aggregate and a binder (such as a carbon-containing paste), to which is applied a main monoaxial stress in a rigid mold havin... | 05/02/1989 |
| 4787598 | Apparatus for the continuous production of pipes with cross-profiled walls The invention relates to an apparatus for the continuous production of pipes with cross-profiled walls from a pipe strand of thermoplastic plastic emerging in still plastic state from an extrusion nozzle.... | 11/29/1988 |
| 4746282 | Dough rounding machine with adjustable trough A dough rounding machine with a drum rotatable about a vertical axis, a frame disposed around the drum and a trough which is formed between the drum jacket and a number of trough elements mounted on the frame and extending helically adjacent the jacket. E... | 05/24/1988 |
| 4706925 | Method of stripping an ingot from a sectional ingot mold and an improved sectional ingot mold therefor A method is disclosed for easing stripping of an ingot from a sectional mold without disassembly of the fastened sections, by partially separating the sections during stripping. An improved mold is provided for accomplishing such partial separation of the... | 11/17/1987 |
| 4702688 | Apparatus for producing articles from a synthetic resin A mold-closing and holding mechanism, especially for a deep drawing apparatus making hollow articles from a thermoplastic web provides force-storing elements between the mold halves and the drive so that when the drive which can use a check motor is cut o... | 10/27/1987 |
| 4699584 | Die opening device for molding machine This invention discloses a die opening device for a molding machine. One upper die segment is attached to the underside of an upper die plate tiltable relative to the surface of a floor on which the molding machine is installed and, at the same time, one ... | 10/13/1987 |
| 4693448 | Closure unit for molding tools Closure units for molding tools, in particular those for the production of polyurethane moldings comprising long lifting cylinders arranged between an upper cross head and a movable cross head for lowering and raising the upper half of a molding tool, the... | 09/15/1987 |
| 4667923 | Molding device for modular concrete unit A molding device includes a multi-sided contractible inner form and outer forms that can be connected detachably to the inner form. The inner form has, at each side, a wedge-shaped spacer formwork board, on which are mounted a power means and a linkage me... | 05/26/1987 |
| 4592716 | Machine for molding elongated workpieces A mold for molding elongated workpieces is comprised of three vertically oriented quadrants and a fourth quadrant pivotally mounted relative to the three quadrants between a mold open position and a generally vertically oriented mold closed position. A wo... | 06/03/1986 |
| 4570897 | Mold for container with recess-defining flange A container mold comprising a mold cavity portion and a mold core portion with the cavity and core portions being relatively moveable between a closed and an open position. By this invention, means are provided for molding a recess-defining flange in the ... | 02/18/1986 |
| 4566669 | Mold for casting reinforced concrete panel assembly elements An assembly element for steel reinforced truss-type panels is cast as a one piece unit in a mold so constructed that the struts of the element are rigidly secured to the upper and lower chord directly as the result of the casting. For this purpose the mol... | 01/28/1986 |
| 4531702 | Injection mold for forming optical fiber connector An apparatus for forming miniaturized optical components such as fiber optics connector terminals in which a three-part mold set is employed to attain precise concentricity of mold cavity formations carried by two of the three mold parts which are movable... | 07/30/1985 |
| 4514356 | Method of molding a plastic toilet seat hinge connectable bed plate A toilet seat hinge has elongated male connector portions provided with saw-toothed shaped upper and lower surfaces which are inserted in female openings in the rear surface of a soft toilet seat and a soft toilet seat cover. The male connector portions l... | 04/30/1985 |
| 4502660 | Mold including side walls with locking projections A mold defining a mold cavity for manufacture of an article, the mold comprising a plurality of mold side wall members, each of the side wall members including opposite end portions and including an inwardly facing surface comprising a mold surface for fo... | 03/05/1985 |
| 4424951 | Building form and method of assembly A building form into which concrete may be poured to form a column or similar structure includes a plurality of stacked form units having interconnected expandable and contractable joints. The application of a vertically upward force to the joints of the ... | 01/10/1984 |
| 4402484 | Molding tool device for a molding used in an architectural structure A molding tool device for a molding used in an architectural structure, in which a plurality of side frames are squarely arranged on a bed to define a space for a molding of concrete panel or the like. In this molding tool device, some of the side frame or fra... | 09/06/1983 |
| 4386647 | Tool for forming interplate connections A tool for forming electrical interconnections between the terminal ends of storage cell plate lugs. This tool is particularly suited to forming such welds between the terminal ends of plate lugs which project through a cell case wall.... | 06/07/1983 |
| 4334663 | Molds for the production of dishes and the like from powdered ceramic materials The invention relates to a mold for the production of dishes from powdered ceramic materials wherein two coaxial cylindrical dies are displaceable to generate with their end facing walls a cavity to be filled with the powdered ceramic materials, said cavi... | 06/15/1982 |
| 4318679 | Apparatus for casting toilet tanks An apparatus for casting toilet tanks from ceramic material in slip form is disclosed. A plurality of mold parts which include two side mold parts which when assembled define a casting cavity and a core part which is positioned in the mold cavity and is s... | 03/09/1982 |
| 4301856 | Permanent mold for gravity casting of light alloy cylinder heads A permanent mold for gravity casting of light alloy cylinder heads comprising a base, a pair of lower platens slidably mounted on the base for movement horizontally toward and away from one another cooperating to define a mold cavity when they are in posi... | 11/24/1981 |
| 4268557 | Process and mold for producing padded seat backs, and the product obtained A process and mold for producing padded motor vehicle seat backs containing a metal framework surrounded by polyurethane foam in a plastic coating. The framework is inserted through a slit in the coating which is then sealed. Then the polyurethane foam is... | 05/19/1981 |
| 4209160 | Articulated mold for objects having undercut parts Articulated mold for the manufacture of molded objects having opposed undercut parts comprises two dies whose parting surface passes between the opposed undercut parts of the molded object. In each die there are provided shells composed of segments which ... | 06/24/1980 |