Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
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| Number | Title | Issue Date |
| 7488168 | Apparatus for fabricating a wire reinforced concrete cylinder The present invention relates to a method and apparatus for fabricating a reinforced concrete cylinder, and more specifically to a method for centering a reinforcing frame within a form used during the placement of a concrete slurry. One embodiment of the present in... | 02/10/2009 |
| 7125239 | Concrete pipe manufacturing machinery and methods A concrete pipe making machine having a packerhead consisting of a rollerhead and a longbottom in which the rollerhead and longbottom are quickly assembleable and disassembleable as a unit from the packerhead drive means with one connector and brought into final adj... | 10/24/2006 |
| 6984118 | Method and apparatus for the production of tubes from concrete mix The invention concerns a procedure for the production of tubes from concrete mix, whereby the concrete mix is filled into a shaping device, for the purpose of shaping, where it is condensed with a tool. The invention should enable an effective and fast production of... | 01/10/2006 |
| 6106749 | Method and machine for making concrete pipe A method and apparatus for making concrete pipe with a packerhead concrete pipe making machine having a lift operable to selectively raise and lower the packerhead during the forming of a concrete pipe in a mold while a conveyor delivers a constant supply... | 08/22/2000 |
| 6017208 | Chain driven roller system for use in concrete pipe manufacturing A concrete pipe manufacturing machine movable in a mold for receiving a concrete mixture to form a tubular concrete wall includes a troweling cylinder assembly having a head plate. A vertically movable and rotatable drive shaft is fixed to the head plate ... | 01/25/2000 |
| 5648108 | Production system for automatic casting of hollow bodies, in particular of concrete A production system for automatically casting hollow bodies, in particular of concrete, in a casting mold, which comprises an inner mold (2), an outer mold (1), a bottom ring (3), and a top ring (4). Separate top rings (4) are used for the production, whi... | 07/15/1997 |
| 5635230 | Method and apparatus for producing shells of fat-containing, masses and food articles produced thereby A method and a system for the production of shells of fat-containing, chocolate-like masses. A cooling member (1) having a temperature below 0° C. is immersed in a predosed mass in a mould cavity (2). The cooling member (1) comprises protruding, peripher... | 06/03/1997 |
| 5616351 | Compaction head of a production machine for reinforced concrete pipes A compaction head of a production machine for reinforced concrete pipes has a smoothing cylinder, non-rotatably mounted on its drive shaft, for smoothing the inside of the concrete mixture that has been filled into a vertical mold. On a covering wall of t... | 04/01/1997 |
| 5456590 | Counter-rotating compaction head for manufacturing concrete pipes A counter-rotating compaction head for manufacturing a concrete pipe is vertically positioned in a vertical mold within the longitudinal axis of the mold so as to be rotatable about and axially slidable along the longitudinal axis of the mold. The counter... | 10/10/1995 |
| 5449283 | Machine for vertical casting of pipes of concrete or a similar material in a mould system with a distributor wheel A machine serves to cast pipes of concrete or a similar material substantially vertically. The machine includes an inner mould part (2) and an outer mould part (12). These mould parts are displaced axially with respect to each other during the casting pro... | 09/12/1995 |
| 5366676 | Method and apparatus for manufacturing concrete panels by continuous pressing A method for manufacturing concrete panels by continuously pressing and an apparatus for carrying out the method. The concrete panels are successively manufactured by continuously feeding pallets onto a conveyor, feeding a concrete material onto the palle... | 11/22/1994 |
| 5364578 | Combination counter rotating packerhead and vibrator assembly and method of operation thereof An improved combination counter rotating packerhead and vibrator assembly is provided. A counter rotating packerhead including counter rotating roller assemblies, longbottom assemblies or a combination thereof is disposed directly over an annular pneumati... | 11/15/1994 |
| 5362224 | Chimney lining former and compactor The invention relates to a chimney lining device which includes a shell member which telescopically embraces the exterior of a bell member. A shell member of desired dimensions may be used in conjunction with a standard sized bell member for the lining of... | 11/08/1994 |
| 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 |
| 5238374 | Apparatus for controlling density profile in a concrete extruded slab In the extrusion of hollow core concrete slabs, the density profile across the slab is controlled by the vibration of a hammering plate forming one side of a packing chamber through which the concrete is extruded. Vibrations are imparted to the hammering ... | 08/24/1993 |
| 5236322 | Cage positioner A concrete pipe making machine having a vibrating core and counter-rotating roller head is used to form a concrete pipe within a form. A concrete pipe reinforcing cage located within the form is held in spaced relation relative thereto with a plurality of... | 08/17/1993 |
| 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 |
| 5123831 | Concrete extrusion machine An extrusion machine for making hollow elongated articles of concrete has an eccentric compaction disc that reciprocates and rotates to compact and release air from zero slump concrete. The machine avoids having to have a high frequency converter which is... | 06/23/1992 |
| 5080571 | Packerhead assembly A packerhead assembly for use in making concrete pipes. The packerhead assembly includes a rollerplate with rollers mounted thereto, and a long segmented longbottom assembly comprised of two substantially identical troweling members, one of which is inver... | 01/14/1992 |
| 5051223 | Method for the production of concrete pipes A concrete pipe is produced by introducing a wet concrete mass into a pipe form to produce a cylindrical mass having an inner wall, compacting the cylindrical concrete mass by applying pressing rollers to the inner wall, smoothing the inner wall of the co... | 09/24/1991 |
| 5040968 | Device for manufacturing concrete parts A device for manufacturing concrete parts, particularly concrete pipes, and based on the principle of sinking mold whereby a molding bottom ring together with a jacket are continuously lowered relative to a stationary mold core while concrete mixture is p... | 08/20/1991 |
| 5021202 | Method and apparatus for constructing rammed earth walls with integral cement jackets Rammed building walls having an earth core and integral cement jackets are formed by placing a rectangular earth hopper within a rectangular wall moulding cavity that is defined by formwork members which are aligned with an underlying foundation. The hopp... | 06/04/1991 |
| 5018955 | Decorative curbing machine An apparatus for continuously shaping and extruding concrete or other moldable material as a decorative curbing. The apparatus is operable by one person at high extrusion velocity, negotiates short radius serpentine curbing paths, and is maneuverable in t... | 05/28/1991 |
| 4968236 | Auxiliary auger assembly for hollow core slab production Auxiliary or stub augers are used in conjunction with a convention auger machine that is used to form reinforced hollow cored slabs. They can be used to ensure consolidation of concrete above the cores particularly and relatively in large diameter slabs o... | 11/06/1990 |
| 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 |
| 4950356 | Method of and apparatus for lining pipes A method of lining a pipe comprises the steps of laying hose means along the bottom of a pipe to be lined, the hose means having been filled with a predetermined quantity of settable lining composition, anchoring the hose means at each end along the botto... | 08/21/1990 |
| 4883416 | Slip-form casting machine for fabrication of elongated concrete products The invention concerns a slip-form casting machine for fabrication of elongated concrete products. The slip-form casting machine comprises a feed hooper (1), an auger (6) for exerting pressure onto a concrete mix to be cast, and a casting mold (10, 11). A... | 11/28/1989 |
| 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 |
| 4755338 | Method and slide-casting machine for the casting of hollow pre-cast units of concrete Method and slide-casting machine for the casting of hollow precast units of concrete by means of slide-casting. Concrete mix is extruded onto a base by using one or several shaping members that form a cavity and the mix is compacted by moving the shaping ... | 07/05/1988 |
| 4741795 | Method of and apparatus for lining pipes A method of lining pipes comprises the steps of laying along the pipe (56) hoses (63) filled with constituent components of a settable resinous lining composition, axially slitting the hoses, conveying the constituent components to a mixing chamber (65), ... | 05/03/1988 |
| 4728280 | Chimney lining slip form An apparatus for lining chimney pipes and the like with cementitious material, and particularly to the improvement in pipe lining apparatus including a conically shaped leading nose providing control switches activated by a nose cap freely positioned ther... | 03/01/1988 |
| 4710115 | Cage positioning device for use with a concrete pipe form A device is described for positioning a reinforcing cage within a cylindrical concrete pipe form. The device comprises a horizontally movable slide which may be moved inwardly into the form for engagement with the cage. A cam is secured to the slide for m... | 12/01/1987 |
| 4690631 | Packerhead with elastic rollers A packerhead concrete pipe making machine having a rotatable packerhead operable to form a concrete pipe in an upright cylindrical mold about a wire cage. The packerhead has a plurality of rollers rotatably mounted on a circular plate operable to pack con... | 09/01/1987 |
| 4639342 | Combined concrete feed and packerhead lift control A method and apparatus for making concrete pipe having substantially uniform density throughout the length of the pipe has a packerhead which is rotated and lifted within a mold, and a conveyor for feeding concrete into the mold. A combined conveyor speed... | 01/27/1987 |
| 4540539 | Method and apparatus for production of concrete pipe by the packerhead method A packerhead, a concrete pipe making machine having said packerhead, and a method of making concrete pipe are disclosed in which twist forces on the reinforcing wire cage of the pipe and concrete voids are eliminated by rotation of the longbottom and roll... | 09/10/1985 |
| 4505658 | Mechanism for centering reinforcing mesh An apparatus is disclosed for centering a reinforcing mesh which is in a pipe or conduit form for manufacturing reinforced concrete pipe or conduit. In order to automatically center the reinforcing mesh in a simple and reliable fashion, a plurality of mes... | 03/19/1985 |
| 4407648 | Counter rotating packerhead assembly A concrete product making machine having a counter rotating packerhead assembly and a concrete supply control operable to maintain a desired amount of concrete in the mold above the packerhead assembly. The counter rotating packerhead assembly has a first... | 10/04/1983 |
| 4406605 | Apparatus for forming concrete pipe of uniform density including control means to vary feed rate of concrete/aggregate as function of packerhead torque In order to form concrete pipe of uniform density in apparatus where a packer head packs concrete into a mold to form the pipe, the horsepower of the drive motor driving the packer is sensed and used to adjust the rate of concrete supply such as to insure... | 09/27/1983 |
| 4400149 | Concrete pipe making machine with redensification apparatus A machine for "dry mix" packerhead concrete pipe manufacture has two stations and a separable tubular jacket movable therebetween. A rotatable cylindrical packerhead is movable axially within the jacket and a "dry mix" delivery means deposits mix atop the... | 08/23/1983 |
