...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 |
| 7311504 | Apparatus for and method of transforming useful material into molded or extruded articles A material handling exit section in the nature of a material extruder and mold combination for shaping the material exiting a hydrolyzer, comprising an extrusion chamber and a plunger assembly attached to the extrusion chamber and further including a working cylinde... | 12/25/2007 |
| 7111549 | T-gib dynamic balancer weight guide A guide system is provided to slidingly guide a reciprocating dynamic balancer weight within a press machine. An elongate stationary guide rail is disposed within a vertical channel formed at one side of the balancer mass. In this configuration, the guide rail is ar... | 09/26/2006 |
| 7101164 | Containment system for continuous flow hydrolyzers A material handling system for a hydrolyzer comprises a material injection assembly having a ram; a sleeve in which the ram reciprocates during use; a gate plate operable from between an open position, wherein a plug of municipal solid waste may exit the sleeve, and... | 09/05/2006 |
| 6679348 | Vehicular two-wheel/four-wheel drive switching device A vehicular two-wheel/four-wheel drive switching device for selectively transmitting power or disconnecting the transmission of rotary power to a power transmission system having a driving shaft connected to the drive side and a driven shaft fitted to the... | 01/20/2004 |
| 6289798 | Method and apparatus for baling tobacco and other materials A baling machine for baling tobacco and other materials. The baling machine includes a bale chamber that includes a bottom, opposed ends, a ram assembly, and a pair of opposed side and top assemblies. Each side and top assembly is pivotally mounted adjace... | 09/18/2001 |
| 6272981 | Chip compressing apparatus A chip compressing apparatus, including a housing which has an inner space having opposite open ends, a movable member which is movable, along one of the opposite open ends of the housing, to a closing position where the movable member closes the one open... | 08/14/2001 |
| 5983788 | Machine for recycling a plurality of used oil filters An apparatus for simultaneously recycling a plurality of used oil filters has a rectangular shaped compartment having a bottom, a top, opposite sides, and first and second ends. A first powered plunger is associated with the compartment above the top ther... | 11/16/1999 |
| 5873304 | Compacting press A compacting press, in particular for waste paper in offices, has a small footprint and a high pressing density. The press ram is disposed in the vertical direction above a pressed part container. Disposed between a shaping chamber and the pressed part co... | 02/23/1999 |
| 5870951 | Rubber baler with extended service life A improved service life baler press assembly including a number of novel press chamber and ram assembly components formed of a relatively hard material, such as a thermoplastic polymer (e.g., acetal resins) or any other suitable material having low static... | 02/16/1999 |
| 5868068 | Enclosed type two-stage garbage compaction and storage structure An enclosed type two-stage garbage compaction and storage structure, in particular a structure having both a hydraulic cylinder and a rotary inner cylinder provided with guide plates to compact garbage in two stages. The structure includes a housing, the ... | 02/09/1999 |
| 5868067 | Fiber and trash baler A baler for compacting fibrous materials or other compactable materials having a platen operable by two compression devices. One compression device is at least one hydraulic cylinder with a piston rod attached to the platen which performs compaction. The ... | 02/09/1999 |
| 5816141 | Vertical door baler with tab and slot construction A baler for compression and baling of waste including a ram and a reinforced vertically sliding bale chamber door at one end of a baler chamber. Tab and slot construction provide for interlocking of heavy wall components and associated members and for com... | 10/06/1998 |
| 5746126 | Rubbish compressing apparatus This invention relates to a rubbish compression apparatus, comprising: a base plate; a main body, mounted on the base plate, into which the rubbish will be thrown; a roughly funnel-shaped compress tube, taking in the rubbish that has been thrown in; a com... | 05/05/1998 |
| 5732617 | Apparatus for baling municipal solid waste An apparatus for baling municipal solid waste, characterized in that it comprises a waste compacting press composed of a compartment, which encloses a chamber, and is provided, in an upward region, with an opening for loading the loose waste, and is later... | 03/31/1998 |
| 5664492 | Apparatus for compacting metal shavings A metal shavings and chips compactor for extruding oil from metal chips and shavings and compacting the metal into easily transportable pellets. A compactor cylinder contains a piston and has an opening through which an auger feeds metal chips and shaving... | 09/09/1997 |
| 5662036 | Compacting apparatus A compacting apparatus includes a first elongate compaction chamber having a first end and a second end and a second elongate compaction chamber having a first end and a second end. The second compaction chamber is in parallel spaced relation with the fir... | 09/02/1997 |
| 5629033 | Pressed earth block machine A machine for pressing earth into blocks has a rectangular breech and a press foot vertically reciprocally drivable in the breech. A bucking block is horizontally reciprocally drivable into and out of registration with an open upper end of the breech. Por... | 05/13/1997 |
| 5622103 | Disposal assembly for fluid filtration devices A waste disposal assembly for the simultaneous disposal of a plurality of fluid filtration devices, the assembly including a main disposal housing with a disposal storage area, a fluid storage area and, a processing area having an exterior access to allow... | 04/22/1997 |
| 5542348 | Process for compacting metal shavings A metal shavings and chips compactor for extruding oil from metal chips and shavings and compacting the metal into easily transportable pellets. A compactor cylinder contains a piston and has an opening through which an auger feeds metal chips and shaving... | 08/06/1996 |
| 5466108 | Process and apparatus for feeding fragmented material into a container under pressure Disintegrated material is supplied to a pressure chamber by a rotatable and axially translatable screw piston. The piston is rotated while in a first axial position to transport and compact the material in a receiving chamber against a closed output valve... | 11/14/1995 |
| 5448946 | Bottle compacting apparatus An apparatus for compressing a container having a base and a top. The apparatus includes a housing and a lid which releasibly attaches to the housing. The lid contains a hole or recess to receive the top of a container. The apparatus also includes a shelf... | 09/12/1995 |
| 5414208 | Formation of densified material Dense ceramic material in the form of a block is made in a hot uniaxial press, particulate precursor material for the ceramic being supplied in cylindrical metal capsules having a convoluted or bellows-like side wall which are supplied in a stream with an... | 05/09/1995 |
| 5363758 | Baler for polystyrene material A baler for baling polystyrene material which has high bulk and low weight for subsequent recycling. The baler includes a ram which provides significant penetration over repeated cycles to compress the polystyrene into a bale, which is subsequently ejecte... | 11/15/1994 |
| 5336843 | Process for compacting normally occurring radioactive material (NORM) in sealed tubular members A process for compacting normally occurring radioactive material (NORM) into a cylinder, such as a pipe, by providing a cylinder having a continuous sidewall, a first open end and a second closed in, and a cavity formed by the side wall defining a NORM st... | 08/09/1994 |
| 5317965 | Baler for polystyrene material A baler for baling polystyrene material which has a high bulk and low weight for subsequent recycling. The baler includes a ram, to compress the material past its form memory, which provides significant penetration over repeated cycles to compress the pol... | 06/07/1994 |
| 5263411 | Press for compacting and for treatment of waste The press comprises a frame (1), a feed zone (3) receiving the waste to be treated, a pressing chamber (9) comprising an intake aperture (10) and an outlet aperture (11) and a chamber (14) for discharging the solid phase. The press also comprises a compon... | 11/23/1993 |
| 5203261 | Can baling machine and method A baling machine has an outer housing forming an elongate, rectangular main baling chamber with a discharge opening at one end and an auxiliary baling chamber intersecting the main baling chamber. An inlet opening directs cans into the chambers at the int... | 04/20/1993 |
| 5007814 | Device for separating and closing a split mold having two halves A device for separating and closing a split mold that comprises a base, a stationary platen, and a movable platen extending upward from the base and oriented to oppose each other, electromagnets, a hydraulic cylinder, and a control panel. The movable plat... | 04/16/1991 |
| 4745856 | Hydraulic refuse compactor with channel guided compactor blade A trash compactor which is hydraulically actuated and which has a compactor blade which can be moved the full length of a truck body with a telescoping cylinder with one actuation of the cylinder and wherein one end of the cylinder is connected by a brack... | 05/24/1988 |
| 4706560 | Refuse treatment apparatus Apparatus for the treatment of domestic refuse to convert it into a solid odorless and non putrefiable residue of reduced weight and volume, comprises a sealable casing housing a process cylinder provided with means for compacting refuse introduced therei... | 11/17/1987 |
| 4703611 | Apparatus for handling compactible articles Method and apparatus for handling compactible articles, and particularly recyclable articles includes a housing forming a compaction chamber with a bottom door movable between a closed position and an open position and having a feed opening through which ... | 11/03/1987 |
| 4691628 | Method for dewatering a mass of wet fibrous material A method for operating a dewatering press wherein a mass for wet fibrous material is dewatered on all six sides by compressing the mass with a second ram against a plurality of liners arranged on a front face of the second ram, on a rear face of a door, a... | 09/08/1987 |
| 4665817 | Apparatus for dewatering a mass of wet fibrous material A press efficently dewaters a mass of wet fibrous material on all six sides by compressing the mass with a second ram against a plurality of liners arranged on a front face of the second ram, on a rear face of a door, and on a top wall, a bottom wall, and... | 05/19/1987 |
| 4619194 | Apparatus for dewatering fibrous materials In the dewatering press of this invention, a ram, movable in a horizontal plane by hydraulic means, compresses a slurry in a compression chamber which includes as one wall a stop gate assembly movable in a vertical plane and as another wall a self-cleanin... | 10/28/1986 |
| 4601238 | Can-baling machine A machine for crushing metal cans into rectangular blocks or bales wherein cans are fed through a precrusher, which flattens and rips open the cans to drain liquids therefrom and leaves protruding torn tabs and flaps that facilitate bonding of the cans in... | 07/22/1986 |
| 4590000 | Method and apparatus for the packaging of radioactive wastes A method of and an apparatus for the packaging of radioactive waste wherein a steel container is placed in a horizontal hydraulic press chamber with the open end of the container turned toward a hydraulic ram, radioactive waste is accumulated ahead of the... | 05/20/1986 |
| 4557190 | Apparatus for compacting scrap materials, such as relatively comminuted scrap metal, waste, and the like To compact such scrap materials as relatively comminuted chip, waste, and the like, an apparatus is provided which comprises a vertically extending briguetting machine, upstream whereof there is provided at least one horizontal pre-compression device. The... | 12/10/1985 |
| 4476779 | Compression bundling apparatus There is disclosed a compression bundling apparatus which can be used to compression pack or bundle such materials as waste paper, hair, cotton, plastics, crude rubber, city rubbish and the like. The apparatus can be used for lateral and vertical binding ... | 10/16/1984 |
| 4417510 | Shear baler A shear baler is disclosed which is designed to efficiently process large volumes of desparate scrap metals into discrete, high intensity, compact bundles and includes novel structure for the facile mounting of shear blades in the movable shear ram and fo... | 11/29/1983 |
| 4346653 | Method and apparatus for refuse disposal A method and apparatus are disclosed for treating refuse preparatory to its discharge in a body of water in which air incorporated in the pores and interstices of the material of the refuse is replaced with a liquid, such as water, sea water, or brine, by... | 08/31/1982 |