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...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7465161 | Device for compressing concrete during the manufacture of concrete parts The invention relates to a device for compressing concrete during the manufacture of concrete parts. Said device comprises a supporting structure, a formwork device which is maintained by the supporting structure and a vibration decoupling device which is arranged b... | 12/16/2008 |
| 7293977 | Device for producing concrete moulded blocks The aim of the invention is to produce concrete moulded blocks, using a mould which is subjected to a vibrating process. Said mould comprises a frame (FR) and a moulding insert (FE) which is maintained therein. A device comprising receiving elements arranged in said... | 11/13/2007 |
| 7129227 | Lipid analogs for treating viral infections A method of treating viral infections, and in particular HIV-1, hepatitis B virus, and herpesviruses, is disclosed. The method comprises administering to a subject in need of such treatment an infection-combating amount of a phospholipid or phospholipid derivative. | 10/31/2006 |
| 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 |
| 6116889 | Rotary press A rotary press, especially for preparing tablets, with a frame, a rotor with drive, at least one pressure roller unit, and a housing. To improve the absorption of the forces introduced into the pressure roller unit, of which there is at least one, and to ... | 09/12/2000 |
| 5556649 | Device for removing runners from molded products A device for removing runners from intermediate molded products includes a holding assembly for maintaining the products in a desired position, a hammer member, an assembly for vibrating the hammer member to cause repeated striking of the intermediate pro... | 09/17/1996 |
| 4459095 | Blow-molding machine for fabricating hollow bodies formed of thermoplastic materials At a blow-molding machine for fabricating hollow blow-molded articles from a thermoplastic material a hollow blow mold is moved back and forth with a swinging or pendulum movement upon a transport device containing a mold-supporting platform between a rec... | 07/10/1984 |
| 4395213 | Noise suppressing block molding machinery Machinery and methods for making concrete blocks includes an open top and open bottom mold supported on a machine's frame when the mold is at rest. A pallet support beneath the mold is movable upwardly by means of a pallet lifter frame to clamp a pallet a... | 07/26/1983 |
| 4276012 | Mold isolator mechanism for centrifugal casting machine A centrifugal casting machine (20) has a first rotatable shaft (33) and a second rotatable shaft (45) as well as a rotatable core member (100) having a central opening, with at least one of these shafts being adapted for reciprocal movement so as to exten... | 06/30/1981 |
| 4260352 | Apparatus and methods for discharging fluent material to block making machinery Fluent material such as mixed concrete to be molded into blocks is contained with a supply hopper for discharge of a predetermined quantity of such material to a mold. The hopper has a discharge opening at one side thereof, rather than at its bottom, so t... | 04/07/1981 |
| 4249873 | Manufacture of prestressed products Apparatus for forming prestressed concrete beams comprising groups of molds, each group forming a module, with the modules arranged consecutively and tracks are placed alongside the modules. Plates seal off the ends of each mold and the beams are lifted o... | 02/10/1981 |
| 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 |
| 4110876 | Jet muffler A muffler is provided for use in conjunction with a jet for treating a running length of yarn. Audible noise which is emitted by the jet is reduced by at least 11.5 ƊdB(A) through the use of a housing to substantially enclose the jet. The housing has ope... | 09/05/1978 |
| 4053266 | Protective hood for pelleting presses A protective hood for a tablet compressing machine includes a heavy cover plate 12 resiliently supported on the top of the machine frame 11, vertical support members 14, hinged windows 16 secured to the support members by locks 21, and acoustical absorpti... | 10/11/1977 |
| 4050505 | Jarring moulding machine A jarring moulding machine having a table and impact receiving arrangement between the table and an anvil, which arrangement includes an annular impact member recessed into a surface of the anvil, and an impact insert of greater resilience than the impact... | 09/27/1977 |
| 4025265 | Concrete tie forming system Apparatus for supporting, transporting and rotating mold forms for producing concrete reinforced ties wherein a gantry includes a pair of rotatable clamping devices on opposite ends thereof whereby the mold forms may be held in a position to be filled wit... | 05/24/1977 |
| 4004872 | Apparatus for blow molding plastic articles A method of and apparatus for blow molding a plastic article by forming a parison into a blown pre-form and then blowing the pre-form into the final article. The final blow mold is fixed, and the pre-form mold is movable from a parison-forming location to... | 01/25/1977 |
| 3961874 | Sound insulated block molding machine Apparatus for forming concrete building blocks which is constructed and arranged (1) to minimize sound emissions to the environment of a magnitude which might cause injury to the hearing of the operators, (2) to provide shielding around the major movable ... | 06/08/1976 |
