Famous Patents
The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7563091 | Tool having an ejection assembly, a method for making such a tool, and a method for ejecting a formed object from a tool A tool 100 having a forming surface 102 being formed from a contiguous material 101 and including, within the contiguous material 101 into which the forming surface 102 is operatively resident, a cylinder 150, 170 or other s... | 07/21/2009 |
| 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 |
| 7172404 | Molding insert for molding machines The invention relates to the production of multi-layered concrete moulded bodies in a moulding machine comprising a moulding insert having a plurality of mould cavities. Relief structures are arranged in the lateral walls of the mould cavities and are dimensioned in... | 02/06/2007 |
| 7156645 | Concrete block mold with moveable liner One aspect of the present invention provides a mold assembly for manufacturing concrete blocks that is adapted for use in a concrete block machine. The mold assembly comprises a plurality of liner plates and a gear drive assembly. Each liner plate has a major surfac... | 01/02/2007 |
| 7025583 | Compaction device for compacting moulded bodies from granular substances and method for using said device Apparatus and method for carrying out compaction operations on molded bodies that consist of granular materials and are placed on pallets, the compaction being achieved by impact of a vibrating table on the underside of the pallet. The vibrating table, together with... | 04/11/2006 |
| 6340442 | Method and apparatus for producing molded tubular objects from polymer concrete A method and apparatus for producing tubular molded products from molding material includes a mold casing and a mold core having a common longitudinal central axis which is vertically disposed. The mold casing and mold core are spaced from one another to ... | 01/22/2002 |
| 6152722 | Device for receiving formwork elements for concrete building elements when manufacturing said building elements A device for receiving formwork elements used to manufacture concrete elements has a bearing static structure and a flat formwork joined therewith which can be driven to vibrate by an exciting device in order to compact the still-plastic concrete. The sou... | 11/28/2000 |
| 6093011 | Apparatus for manufacturing green bricks for the brick manufacturing industry Disclosed is an apparatus for manufacturing green bricks from clay for the brick manufacturing industry. The apparatus includes a circulating conveyor carrying mould containers combined to mould container parts, a reservoir for clay arranged above the mou... | 07/25/2000 |
| 5846576 | Apparatus for the production of shaped bricks The mold for the production of concrete shaped bricks has several mold cavities, which are filled with free-flowing concrete. To produce recesses in the interior or on the outer sides of the shaped brick, to each mold cavity there correspond one or more m... | 12/08/1998 |
| 5807591 | Method and apparatus for forming concrete products A mold box is flexibly mounted to a product forming machine having upper and lower vertically displaceable beams. A feed drawer dispenses concrete material into the mold box while a vibration system vertically vibrates the mold box while dampening horizon... | 09/15/1998 |
| 5783230 | Compacting installation An installation for compacting concrete mix includes a frame which has a lower plate and an upper plate between which concrete mix can be accommodated. The plates can be pressed in the direction towards one another and can be made to vibrate with respect ... | 07/21/1998 |
| 5658600 | Injection molding machine having assembly for vibration processing An injection molding machine equipped with an assembly for vibration processing which efficiently performs processing operations on the resin in the mold with vibration overcomes the restriction of vibration frequency due to the limited response of return... | 08/19/1997 |
| 5472335 | Locally pressurizing type injection molding machine A locally pressurizing type injection molding machine includes a stationary die and a movable die. An ejector pin extends through the movable die, with its tip end facing a mold cavity and its trailing end fixed by an ejector plate. A vibrating/pressurizi... | 12/05/1995 |
| 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 |
| 5248248 | Machine for making concrete pipes A concrete pipe making machine having a pair of combined roller head and vibrating core assemblies are used with two molds to prepack and vibrate concrete within the molds to simultaneously produce two concrete pipes. A controller is programmed in respons... | 09/28/1993 |
| 5167967 | Machine for making concrete pipes A concrete pipe making machine having a pair of combined roller head and vibrating core assemblies used with two molds to prepack and vibrate concrete within the molds to simultaneously produce two concrete pipes. A controller is programmed in response to... | 12/01/1992 |
| 5147196 | Machine for making concrete pipes A concrete pipe making machine having a pair of combined roller head and vibrating core assemblies are used with two molds to prepack and vibrate concrete within the molds to simultaneously produce two concrete pipes. A controller is programmed in respons... | 09/15/1992 |
| 5139602 | Apparatus for producing paving blocks There is provided an apparatus for producing a paving block comprising a block substrate and a solid top layer selected from a tile-like layer and a cured cement mortar layer firmly bonded onto the upper surface of the block substrate. The apparatus compr... | 08/18/1992 |
| 5139404 | Apparatus for making lined pipe An apparatus for making concrete pipe having vinyl liners. An expandable core is used to hold a tubular vinyl liner. The core has over-center latches which lock the core in an expanded position to hold the liner against the outside surface of the core. Th... | 08/18/1992 |
| 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 |
| 4957424 | Concrete pipe making machine A concrete pipe making machine having a combined vibrating core and counter rotating packerhead assembly is used with a mold to prepack and vibrate concrete within the mold to produce concrete pipe. A controller is programmed in response to packing force ... | 09/18/1990 |
| 4818202 | Hydration means The invention is concerned with an hydration means for wetting the exposed surface of a core void formed on the withdrawal of a core former from a construction panel comprising compacted gypsum or like particulate materials, and proposes the free suspensi... | 04/04/1989 |
| 4765890 | Apparatus for reducing tailing in a liquid chromatograph To reduce tailing, the frit at the outlet to the liquid chromatographic column has a diameter substantially equal to that of the inside diameter of the outlet end of the column and less than two millimeters. It is held directly against the packing of the ... | 08/23/1988 |
| 4759843 | Apparatus for reducing tailing in a liquid chromatograph To reduce tailing, the frit at the outlet to the liquid chromatographic column has a diameter substantially equal to that of the inside diameter of the outlet end of the column and less than two millimeters. It is held directly against the packing of the ... | 07/26/1988 |
| 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 |
| 4652228 | Molding machine with vibration system A molding machine is disclosed which includes a vibration zone; an endless conveyor movable across the vibration zone and having tread plates pivotally connected in succession. The molds are provided on the tread plates and include bottom wall pallets eac... | 03/24/1987 |
| 4645446 | Injection molding machine with self-connecting ejection device An ejection device in a die closing unit of an injection molding machine in which the ejector piston rod, reaching from behind through the movable die carrier and into an engagement cavity in the back plate of the movable die half, is automatically engage... | 02/24/1987 |
| 4615076 | Kneaded food molding apparatus of the rotary type A kneaded food molding apparatus of the rotary type comprising a rotary plate to which a plurality of molding devices are attached, a stationary shaft to which the rotary plate is secured in a manner rotatable around the center of the rotary plate, a driv... | 10/07/1986 |
| 4545753 | Injection molding machine with self-connecting ejection device An ejection device in a die closing unit of an injection molding machine in which the ejector piston rod, reaching from behind through the movable die carrier and into an engagement cavity in the back plate of the movable die half, is automatically engage... | 10/08/1985 |
| 4445839 | Reciprocating tamper for a concrete mold press A concrete mold press for a concrete molding machine includes a reciprocating tamper operatively movable to an operative position in pressing contact with the concrete in a mold. The tamper includes a tamping plate mounted to vertically oscillate in respo... | 05/01/1984 |
| 4439131 | Apparatus for producing concrete elements of high dimensional accuracy Concrete elements and a lifting mechanism are secured against tilting at the time of form removal, and the formwork is fixed in place. In the apparatus, a forming unit, a concreting unit and a form removal unit are provided. The forming unit has a single ... | 03/27/1984 |
| 4413966 | Fluid-release mold and the method of manufacturing the same A fluid-release mold is disclosed. The mold includes a preformed, porous mold body having a mold face formed on a first exterior surface and a second surface. A groove is formed in the second surface. A tape covers the groove to form a conduit between the... | 11/08/1983 |
| 4351507 | Multi-part form with improved tie and stripping means A multi-part form for casting concrete structural units having spaced parallel and vertical sidewalls and horizontally spaced parallel and lateral connecting arms therebetween, the connecting arms having mortises at the bottom and tendons at the top. A st... | 09/28/1982 |
| 4334851 | Concrete forming apparatus A concrete forming apparatus comprises a support table for holding a pallet in a generally horizontal orientation. A vertically movable mold table engages the pallet to place a mold carried in the mold table on top of the pallet. A dispensing hopper fills... | 06/15/1982 |
| 4321028 | Concrete molding apparatus including reciprocating belt feeder A press for molding concrete products comprising a vibrating table, a mold adapted to be put on the vibrating table and to be filled with concrete, a concrete feeding means such as a hopper and means provided between the hopper and the mold to fill the mo... | 03/23/1982 |
| 4289462 | Apparatus for manufacturing vitreous blast furnace slag An apparatus for manufacturing a vitreous blast furnace slag, comprises a rotary drum having a circular barrel formed by endlessly connecting a plurality of rectangular cooling metal members, each of said cooling metal members having a plurality of narrow... | 09/15/1981 |
| 4265609 | Method and apparatus for molding concrete block products A method and apparatus for molding concrete block products is disclosed, in which a surface layer and a back layer are formed by supplying different concrete aggregates into a molding box, pressure and vibration are applied to the concrete aggregates in t... | 05/05/1981 |
| 4238177 | Molding machine with vibration isolation A concrete block molding machine has the pallet support table mounted on the main frame of the machine through pneumatic tires which provide vibration isolation between the pallet support table and the main machine frame. A mold, having vibrating mechanis... | 12/09/1980 |
| 4235580 | Noise suppression structure for block making machinery Apparatus for suppressing noise generated by a concrete or the like block making machine having a vibratable open bottom mold against the bottom of which the pallet is clamped to close the mold and provide a support for the molded block. The pallet suppor... | 11/25/1980 |
