Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 8057129 | Process and equipment for the conveyance of powdered material The invention concerns a process and a device (2) for the pneumatic conveyance of powdered material (4), in which a cylindrical chamber (10, 12), which can be connected with a reservoir (6) by a sealable inlet (14, 16) and with a d... | 11/15/2011 |
| 7648312 | Process and equipment for the conveyance of powdered material The invention concerns a process and a device (2) for the pneumatic conveyance of powdered material (4), in which a cylindrical chamber (10, 12), which can be connected with a reservoir (6) by a sealable inlet (14, 16) and with a d... | 01/19/2010 |
| 7481605 | Process and equipment for the conveyance of powdered material The invention concerns a process and a device (2) for the pneumatic conveyance of powdered material (4), in which a cylindrical chamber (10, 12), which can be connected with a reservoir (6) by a sealable inlet (14, 16) and with a d... | 01/27/2009 |
| 7478976 | Process and equipment for the conveyance of powdered material The invention concerns a process and a device (2) for the pneumatic conveyance of powdered material (4), in which a cylindrical chamber (10, 12), which can be connected with a reservoir (6) by a sealable inlet (14, 16) and with a d... | 01/20/2009 |
| 7465130 | Powder feed pump and appropriate operating system An operating system for a power feed pump and a power feed pump having a transfer chamber with an inlet and an outlet. The outlet of the transfer chamber is closed, the inlet of the transfer chamber is opened, and a negative pressure is generated in the transfer cha... | 12/16/2008 |
| 7347649 | Powder purge tube To supply a powder lacquer sprayer, the coating powder is pressed by a pig through the supply line and, in the process, it is fluidized from the side of the pig which is turned toward the powder. The fluidization air can be led to the powder, for example, by a centr... | 03/25/2008 |
| 7329071 | Device for the pneumatic conveying of particulate and powdery bulk material Devices for the pneumatic conveying of particulate and powdery bulk goods to obtain high conveying speeds with low energy expenditure. The devices have a fluidized conveying pipe with fluidizing elements, in which pipe the fabric layers of the fluidizing elements ar... | 02/12/2008 |
| 7241080 | Pump for transferring particulate material A pump for transferring particulate material from a source to a remote location, including a particulate chamber having open ends, check valves at the open ends, a vacuum source connected to the chamber adjacent one end, a gas source at the opposed end of the chambe... | 07/10/2007 |
| 7163359 | Device for conveying powder and method for operating the same Transport system with several devices (1) for transporting powder, where each device (1) has a transfer chamber (3) into which a supply line (6) and a discharge line (8) for the powder open, and means to generate a negative pressur... | 01/16/2007 |
| 7150585 | Process and equipment for the conveyance of powdered material The invention concerns a process and a device (2) for the pneumatic conveyance of powdered material (4), in which a cylindrical chamber (10, 12), which can be connected with a reservoir (6) by a sealable inlet (14, 16) and with a d... | 12/19/2006 |
| 7014392 | Device for pneumatic or hydraulic conveying of dusty, powdery or granular bulk material The present invention is directed to a device for pneumatic or hydraulic conveying of dusty, powdery or granular bulk material. The device includes a conveyor line, an inner pipe in the conveyor line that is parallel to the axis and preferably eccentric. The inner p... | 03/21/2006 |
| 6973704 | Method and apparatus for positioning sliders for automated slider insertion An apparatus for inserting a slider onto a flexible zipper tape, comprising: a zipper tape guide that supports a section of zipper tape in a slider insertion zone and guides advancement of the zipper tape along a line; a mechanism for displacing a slider from a pre-... | 12/13/2005 |
| 6764296 | Fluidizing method and apparatus A fluidizing method transports particulates by gravity flow but passes the particulates through a fluidizer which is partitioned by a porous distributor plate to form first and second chambers and wherein the particulate materials pass through said first chamber whi... | 07/20/2004 |
| 6726408 | Dual inserter applicator An apparatus (10) for feeding sliders (31) from a source of sliders to the slider insertion area (27) of at least two slider insertion devices (18, 19). A sensor (30, 52) on a sender track (20, 21) detects a lack of sliders ... | 04/27/2004 |
| 6666626 | System for transporting sliders for zipper bags An apparatus (10) for and a method of transporting sliders to the slider insertion area (27) of a slider insertion device (18). A first sensor (30) on a sender track (20) detects a lack of sliders (21) in the sender track. A signal is sent from the first ... | 12/23/2003 |
| 6634832 | Apparatus for transporting particulate materials from a lower level to a higher level A method of and apparatus for transporting particulate materials from a lower level to a higher level are disclosed, the method comprising: establishing a flow loop comprising a closeable chamber for receiving batches of the particulate materials, a first ... | 10/21/2003 |
| 6485284 | Gas assisted flow tube and filling device A gas-assisted flow and filling device for transporting particulate material and filling die cavities includes a source of low-pressure gas for delivering gas to a chamber that is separated from a fluidizing chamber by a porous distributor plate which per... | 11/26/2002 |
| 6478513 | Fluid pumping apparatus for particulate material system A fluid pumping assembly for pumping particulate material includes a pump housing defining a pump cavity including a pumping chamber for handling particulate material, a motive fluid chamber, and a moveable diaphragm. The fluid pumping assembly also inclu... | 11/12/2002 |
| 6447216 | Fluid pumping system for particulate material A fluid pumping assembly for pumping particulate material includes a pump housing defining a pump cavity including a pumping chamber for handling particulate material, a motive fluid chamber, and a moveable diaphragm. The fluid pumping assembly also inclu... | 09/10/2002 |
| 6428245 | Method of and apparatus for transporting particulate materials from a lower level to a higher level A method of and apparatus for transporting particulate materials from a lower level to a higher level are disclosed, the method comprising: establishing a flow loop comprising a closeable chamber for receiving batches of the particulate materials, a first flow... | 08/06/2002 |
| 6402500 | Fluidized fillshoe system A delivery and filling system for filling a cavity with a particulate material is disclosed. The system in one embodiment includes a hopper; a transport device, and a delivery chute. The hopper, transport device, and delivery chute each may have a porous ... | 06/11/2002 |
| 6322295 | Pneumatic apparatus and method for transporting irregularly-shaped objects A pneumatic system for transporting irregular objects such as bags filled with recycled cans through a duct in which the object is first accelerated by pneumatic pressure and subsequently decelerated after a sensor triggers the closure of the air outlets ... | 11/27/2001 |
| 6283680 | Device for pneumatic transport of material such as concrete Apparatus for transporting a material such as concrete utilizes a flexible duct connected to a hopper and includes a device that can pinch the duct. The pinching device has first and second pinch members that are movable transversely relative to the duct,... | 09/04/2001 |
| 6263883 | Interchange apparatus for a pneumatic conveying system An interchange apparatus for a pneumatic conveying system including a plurality of branch tubes joined together at an acute angle in an interchange chamber to form a main tube and a flap positioned between at least two branch tubes of the plurality of bra... | 07/24/2001 |
| 6257804 | Powder metering apparatus for dispensing a powder-air mixture to a consumer A powder metering apparatus for making available a powder, in particular for powder coating, and which comprises a metering pump with a rotatably driven metering disk arranged between two lateral plates. The metering pump includes an inlet, through which ... | 07/10/2001 |
| 6244788 | Apparatus for supplying solder balls An apparatus is provided for supplying solder balls to a receptacle. The apparatus includes a reservoir for storing the solder balls and a flow path. The flow path includes a first end connected to and in fluid communication with the reservoir and a secon... | 06/12/2001 |
| 6224297 | Method and apparatus for use in conveying material A dispensing apparatus for dispensing a particulate material having an upstream source of particulate material, a delivery device disposed downstream of the upstream source of particulate material and communicable with the source for delivering the partic... | 05/01/2001 |
| 6106202 | Pneumatic conveying air assist line with air bleed A pneumatic conveying transport system for bulk materials has a conduit that carries material in a gas flow, and at spaced locations along the conduit air assists are provided to inject a supplemental amount of air into the conveying conduit when back pre... | 08/22/2000 |
| 6068428 | Capsule train separation system for fluid capsule pipeline transporation Apparatus for spacing consecutive capsules of solid material traveling as a capsule train in a pipeline in which the capsules are carried by a fluid flowing through the pipeline includes a separation system interposed between upstream and downstream porti... | 05/30/2000 |
| 5791829 | Method of shock-reduced pneumatic plug conveyance of bulk materials and device for implementing the method Methods and devices for the conveyance of bulk materials by a compressible conveying medium and in the form of discrete plugs from bulk materials in pipes are known. A disadvantage is the high-energy and abrupt expansion of the volume of the conveying med... | 08/11/1998 |
| 5656305 | System for dosed conveying and selecting of cylindrical pellets for molding apparatus for lead frames The invention relates to a system for dosed conveying and selecting of pellets for a moulding apparatus for lead frames, with which it is possible to prevent crumbled pellets or fragments and/or dust thereof being able to reach the molding apparatus arran... | 08/12/1997 |
| 5562366 | Method and system for fast cycle transport of materials in dense phase A fast cycle system for transport of particulate material in dense phase has a feeder assembly dispensing material into a pulse pod assembly. The latter is connected to a pressurized pipeline and the pod of material is sent into the pipeline upon receipt ... | 10/08/1996 |
| 5549421 | Method and apparatus for conveying ice lumps In apparatus for conveying batches of ice lumps from a storage hopper to remotely located ice dispensers, ice lumps from the storage hopper are delivered into the main conduits through corresponding main valves and connecting conduits extending between ea... | 08/27/1996 |
| 5525015 | Pneumatic transport system for powdered materials A pneumatic transport system for powdered materials for quantifying and pneumatically transferring powdered materials. When materials are fed above an inclined guide plate in a material feeder with its bottom opening closed by a valve plug, a slide damper... | 06/11/1996 |
| 5332337 | Particle feeding device and method for pyrolytic carbon coaters A particle feeding device and method for fluidized bed coaters that has no moving parts. It preferably provides for constant flow of purge gas into the fluidized bed coater and has a feedback control means for monitoring and precisely controlling the flow... | 07/26/1994 |
| 5316179 | System for dispensing a known volume of fluid A system for delivering measured amounts of liquid, such as reagents used in chromatography. Liquid is first moved under gas pressure from a reservoir, such as a reagent bottle, through a valve into a narrow pipe. It reaches a detector which, detecting it... | 05/31/1994 |
| 5150990 | High density pneumatic transport system for use with solid materials A high density pneumatic transport system of solid materials from an airtight transport tank through a transport pipe into a collector. In the airtight transport tank materials are successively fed into a charge tank by reciprocating a slide damper. Simul... | 09/29/1992 |
| 5056962 | Method of sampling solid materials and sampling system to execute the method A method and the related system for sampling solid materials. Materials as continuously manufactured from a compression molding machine are sampled at fixed intervals and the materials thus sampled are fed into a transport pipe so as to be transferred by ... | 10/15/1991 |
| 5018440 | Tank for treating units of a product Novel apparatus for liquid treatment of units of a product such as blocks of cheese wherein the units are floated in a flowing stream of the treatment liquid and are conveyed by the treating liquid from an inlet of the tank to an outlet of the tank. For s... | 05/28/1991 |
| 4978251 | Method and apparatus for conveying materials in bulk by liquid pressure A method for conveying materials in bulk by liquid pressure carried out by an appropriate apparatus involves loading a material in bulk into a chamber through a loading pipe and then supplying liquid under pressure through a pipe for supplying liquid in t... | 12/18/1990 |
