Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 7891966 | Depanning devices and methods of using same Depanning devices and methods of using the depanning devices are provided. In an embodiment, the present disclosure provides a device comprising a rotatable support and a grid attached to the support. The grid comprises one or more movable gates and defines one or m... | 02/22/2011 |
| 7841852 | Apparatus for demolding building products from a mold A demolding apparatus for removing molded building products from a mold has a conveyor assembly to advance the mold in a machine direction. A removal mechanism contacts a dislodged portion of the molded building product and applies a dislodging force to the dislodge... | 11/30/2010 |
| 7341685 | Block forming method A block forming apparatus is provided. The block forming apparatus includes first and second jackets detachably secured to a base pallet. The first and second jackets may be removed from the base pallet during the curing period of a block for use with a second base ... | 03/11/2008 |
| 7305804 | Outlet device for chocolates and the like An outlet device for chocolates and like products (100) for use with a wrapping machine (50) which has a device (51) for moving each product (100). The outlet device has a first belt (2) for moving products (100) to be rolle... | 12/11/2007 |
| 7222835 | Fast concrete house system for construction of houses and commercial structures A fast concrete house system for the construction of housing units is disclosed. The system disclosed herein allows for an improved low cost manufacturing, without the use of special tools or an ample array of structural elements. ... | 05/29/2007 |
| 6767000 | Manufacturing platform A manufacturing platform has one or more tables for producing construction components such as walls, floors, decks and roofs. The tables are pivotally mounted on second and/or third axes at the outboard edges or rear end of a pair of rectangular horizontal frames wh... | 07/27/2004 |
| 6481235 | Ice making device of refrigerator An ice-making device includes a case, an ice tray having a plurality of ice cubes and being rotatably installed clockwise and counterclockwise in the case, and a rotation stopping unit provided at the case and the ice tray to limit a rotation of an ice tr... | 11/19/2002 |
| 6345977 | Method and apparatus for manufacturing 100% edible lollipop A lollipop comprises a ball of hard candy and an edible stick having a first end extending into a cavity in the ball. The stick comprises pressed candy and a multiplicity of confectionary chips interspersed in the pressed candy. The stick is preferably re... | 02/12/2002 |
| 6136361 | Method and apparatus for molding and baking food An apparatus for compressing and baking fluid food under pressure to form unified shaped products has a heated metal mold bottom with a cavity and a heated metal mold top connected to the piston rod of a pneumatic or hydraulic cylinder positioned for alte... | 10/24/2000 |
| 5935617 | Molding apparatus for patterned shaped article A molding apparatus for a patterned shaped article includes a retainer having a plurality of retaining portions for retaining particles, a supply tank for charging particles into the retainer, a remover for removing the particles from some of the retainin... | 08/10/1999 |
| 5792488 | Demolding apparatus for removing chocolates from molds A demolding apparatus removes chocolates from molds. The apparatus includes upper and lower conveyor systems and an inverting unit. Full molds filled with chocolate are carried by the lower conveyor to the inverting unit which inverts the full molds and t... | 08/11/1998 |
| 5395232 | Mold device in a molding machine An apparatus for opening and closing a mold is described herein, wherein a movable mold is revolved and pivotally moved in association with a mold opening and closing operation. When opened, the mold is maintained in a sideways position such that the mold... | 03/07/1995 |
| 5322654 | Rotational moulding apparatus and process A rotational moulding apparatus includes a device (5) disposed inside the mould for measuring temperature. A processor (6) forming part of a feedback tool (7) enables real time monitoring and control of the moulding process. Identifiable points on the tem... | 06/21/1994 |
| 5281125 | Device for the production or manufacture of stones or blocks On a device for the production or manufacture of stones, particularly of paving stones, block or formwork stones, with a material box, a mould box or flask, a shake device with compaction rams or presses, to a main frame main cylinders are fastened, to wh... | 01/25/1994 |
| 5277570 | Press for pressing a compressible material An apparatus and method is disclosed for an improved press for pressing a compressible material such as a deformable plastic material with a fluid under pressure from a fluid pressure source. The press incorporates a press cylinder having a press cylinder... | 01/11/1994 |
| 5173234 | Process and automatic machine for manufacture of calibrated rings from an extrudate According to the invention, calibrated rings are obtained by superficially vulcanizing extruded or profiled extrudate at the exit of an extrusion head (T), then by cutting this vulcanized extrudate into portions by means of a conical cutting device (C), s... | 12/22/1992 |
| 5141429 | Device for working a supply of clay to mouldings adapted for firing hand mould bricks An endless conveyor having a plurality of molding tray supports is mounted on an intermittently indexing turntable. A press of the type adapted to form the clay into lumps deposits these lumps into molding trays on the conveyor, and thereafter the trays p... | 08/25/1992 |
| 5135384 | Molding machine A molding machine preferably for molding blocks from a premixed concrete, has a rotating mold table and a receiving conveyor that raises and lowers for ultimate transfer of the molded block to a conveyor and finally to a curing area.... | 08/04/1992 |
| 4952129 | Plant to manufacture elongated elements of prestressed reinforced concrete A plant to manufacture elongated concrete elements, particularly railway sleepers of prestressed reinforced concrete. In the plant according to the invention, the forms for the production of said elements are supported on carriages sliding along parallel ... | 08/28/1990 |
| 4936764 | Inverter for brick mould An inverter adapted to gently invert multi-cell moulds used in a brick making machine includes a first carrier for transporting a mould through a first arcuate path, a second carrier for transporting a mould through a second arcuate path to cause inversio... | 06/26/1990 |
| 4894002 | Apparatus for configuring an extrudate The apparatus for extruding a paste like product on to a horizontal board or plate while moving the plate relative to the extruder, and subsequently overturning the plate to deliver the configured extrudate to a removal conveyor.... | 01/16/1990 |
| 4890999 | Molding machine 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... | 01/02/1990 |
| 4871306 | Automatic mould unloader for hams and the like A mould unloader is disclosed for hams and the like which performs in a fully automatic way the operation of removing the lid (4), overturning the open mould (5) containing the product (6), removing the mould, conveying and evacuating the unloaded product... | 10/03/1989 |
| 4854843 | Apparatus for producing cast products Apparatus for producing cast products which include a filling unit wherein elastic moulds of open-bag shape are filled with non-solid materials, a solidifying unit wherein the materials are allowed to solidify in the elastic moulds, and a withdrawal unit ... | 08/08/1989 |
| 4802839 | Apparatus for producing cast products Apparatus for producing cast products comprises a filling unit wherein non-solid materials are filled into open-bag shaped elastic moulds through filling nozzles, a solidifying unit wherein the material is solidified in the elastic mould, and a withdrawal... | 02/07/1989 |
| 4799873 | Method and apparatus for manufacturing truck bodies A machine for manufacturing a unitary glass fibre reinforced body shell includes a carriage which is movable along the mold and a turntable which is mounted on a carriage for rotation about a first axis extending in the direction of longitudinal movement ... | 01/24/1989 |
| 4744741 | Apparatus for the manufacture of composite articles using rotating molds A molding apparatus for making a plastics pipe fitting or pipe coupling by injection-molding the plastics pipe fitting or coupling body, injection-molding at least one sealing ring separately but substantially simultaneously, and bringing the body and sea... | 05/17/1988 |
| 4735562 | Apparatus for casting and inverting concrete products An apparatus and method for making a plurality of formed concrete products. The apparatus comprises a platform having a mold tray situated thereon, wherein the platform has a built in vibrator and the mold tray is attached to a hydraulic lift system. The ... | 04/05/1988 |
| 4708611 | Apparatus for casting and inverting concrete products An apparatus for making a plurality of formed concrete products. The apparatus comprises a platform having a series of mold cavities, wherein the platform is attached to a vibrator and a hydraulic lift system. The hydraulic lift system lifts and inverts t... | 11/24/1987 |
| 4664610 | Apparatus for obtaining drain-cast hollow articles for ceramic ware An apparatus for drain-casting a slip comprises a mold including at least two divisible mating mold portions to form a mold cavity, a slip tank, a pump, air compressors, suction pumps, valves and tubings to connect them accordingly, supporting means of th... | 05/12/1987 |
| 4576562 | Apparatus for producing frozen confections The disclosed frozen confection machine is provided with a series of mold bars each of which contain a plurality of cavities for containing confection material which is frozen in said cavities. The machine is provided with a mechanism for inserting sticks... | 03/18/1986 |
| 4527940 | Cheese unloading machine A machine for automatically removing a block of cheese from a container having an open top by inverting the container and pulling the cheese through the inverted open top by retractable suction cups. The cheese containers are vertically stacked on a hydra... | 07/09/1985 |
| 4472130 | Device for raising a casting table, more especially for concrete panels The invention provides devices for raising a table for casting a concrete panel so as to be able to remove it from the mold. Such a raising device is provided with a funicular cable passing over an assembly of pulleys. Two carriages carried by two strands... | 09/18/1984 |
| 4398880 | Proofer tray assembly having stepped release coating retaining surfaces A proofer tray assembly with a circular cup having a stepped configuration providing a series of substantially horizontal annular surfaces forming ledges for retaining a dough release agent such as sifted flour or sprayed oil.... | 08/16/1983 |
| 4349327 | Automatic finishing chip maker A method of producing finishing chips comprising the steps of providing a castable mixture of particulate abrasive grains and a solidifiable matrix, depositing the mixture into cavities of a generally-cylindrical, flexible mold having a plurality of cavit... | 09/14/1982 |
| 4311087 | Cheese-draining apparatus Multi-cavity molds coact with respective table elements forming a drainage table. Between each mold and the corresponding table element is a connecting means allowing the mold to slide between a normal cheese-draining position against the table element an... | 01/19/1982 |
| 4296908 | Mold for integral base for casting ceramic material in the form of a slip A mold having an integral piece for casting a hygienic-sanitary appliance is disclosed. The mold includes a lower mold piece, at least two lateral mold pieces which are mounted on the lower mold piece to define a molding cavity for an article to be cast. ... | 10/27/1981 |
| 4248578 | Cheese molding process and apparatus therefor A process for molding a cheese piece of a desired shape comprises filling a mold having a hollow interior of the desired shape with softened, uncured cheese, cooling the mold to harden and partially cure the cheese, and then opening the mold to release th... | 02/03/1981 |
| 4181485 | Tiltable mold and shed means Method and apparatus for the manufacture of pre-cast plate-like concrete elements on a building site. A horizontal casting table has a large area mold into which the concrete is poured. After a short setting time to allow the concrete to harden, the table... | 01/01/1980 |
| 4149697 | Casting and stock-piling outfit An outfit for manufacturing concrete units includes one frame, which can move along a rail-track, and two detachable forms-tilters on it. The length of the unit made in the forms can be varied. Each form has also detachable equipment (edges, dies, and div... | 04/17/1979 |
