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 |
| 7988386 | Split collar with offset hook and hinge hopper assembly A mounting assembly uses one hinge and one cam bolt mutually offset upon a two piece collar. A hopper tee has a member usually a vertical pipe and occasionally a horizontal pipe that connects to a hopper flange to receive bulk material. This assembly has two collars... | 08/02/2011 |
| 7654778 | Vacuum system for pickup unit An improved system for the moving material into and out of a trailer attached to a truck that is equipped with first and second high pressure hydraulic circuits, an airlock circuit, and a low pressure return line. The improvement to the system generally includes a s... | 02/02/2010 |
| 7413388 | Method and apparatus for pneumatically conveying bulk material which does not flow readily The invention relates to a method and an apparatus for pneumatically conveying bulk material which does not flow readily, in which: bulk material is metered by means of one or more input device(s) (8) into a lateral conveyor... | 08/19/2008 |
| 7264423 | Hose restraint apparatus A restraint apparatus configured to selectively attach a flexible hose at an outlet structure of a manifold of an air conveyance system is provided. The restraint apparatus includes a restraint member having a flat, planar shape. The restraint member includes a firs... | 09/04/2007 |
| 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 |
| 6994497 | Method and apparatus for treating high pressure particulate material An apparatus for pneumatically conveying particulate material containing reaction products of a high pressure reactor from a supply vessel at a pressure of at least two bar to a receiving vessel at a considerably lower pressure. The apparatus includes a conveyor lin... | 02/07/2006 |
| 6976713 | Apparatus for use in applying granular material to a rail An apparatus for applying granular material to a rail adjacent to a wheel of a train includes a granular supply material container to which a granular material injection assembly is connected. The granular material injection assembly includes a housing having a mixi... | 12/20/2005 |
| 6892909 | Pneumatic particulate dispensing system A pneumatic particulate dispensing system having a hopper for storing particulate material, such as animal feed, fertilizers, pesticides and the like. The hopper is connected to a T-fitting which encloses a velocity tube. An air blowing unit is connected to the T-fi... | 05/17/2005 |
| 6786681 | Method and apparatus for the pneumatic conveying of fine bulk material A method and an apparatus for the pneumatic conveying of fine bulk material, in particular glass fibers. The apparatus includes (i) a pneumatic conveying pipe having an upstream first portion, a downstream second portion, and a discharge point located further downst... | 09/07/2004 |
| 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 |
| 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 |
| 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 |
| 6287056 | Method of operating a pulse flow conveying installation and pulse flow conveying installation for carrying out the method In a method of operating a pulse flow conveying installation (10), which is intended for the conveying of a solid material (33), present in the form of bulk material, by means of a conveying gas, in which pulse flow conveying installation (10) an alternat... | 09/11/2001 |
| 6283679 | Distribution manifold for air seeder A seed cart for an air seeder is provided with pneumatic distribution system having a primary air distribution manifold. The primary air distribution manifold is provided with a top rank of venturis and a bottom rank of venturis for receiving an air strea... | 09/04/2001 |
| 6213690 | Distribution manifold for air seeder A primary air distribution manifold for an air seeder's pneumatic distribution system, wherein the primary air distribution manifold is provided with a top rank of venturis and a bottom rank of venturis for receiving an air stream from a blower which is d... | 04/10/2001 |
| 6079461 | Use of inert gas in transfer of comminuted product to tank A method and apparatus for transferring comminuted product from an unpressurized storage unit to a tank, especially a trailer-mounted tank. According to this method, an inert gas source is provided, preferably mounted on the trailer, and a conduit is prov... | 06/27/2000 |
| 6056483 | Powder coating material feeding apparatus In a powder coating material feeding apparatus, a lid section is mounted onto an opening of a metal drum containing powder coating material, and a support unit holds the metal drum in its upside-down or tilted position. An air distribution panel supplies ... | 05/02/2000 |
| 5558474 | Apparatus for discharging particulate material Apparatus 10 for discharging particulate material such as sand has a container 11 for the material, a supply conduit 20 for pressure gas, e.g. air, connected to an inlet 16 and via pipe 17 to an outlet 12 and a flexible discharge conduit 14 leading to noz... | 09/24/1996 |
| 5213450 | Appliance for the dispensing of bulk material An appliance for dispensing of bulk material includes a circular-cylindrical stationary cellular housing with individual chambers of a cross-section in the form of a segment of a circle, which are closed in an upper and lower region by respective upper an... | 05/25/1993 |
| 5156499 | Roller injection air lock An air lock for injecting a fibrous or granular material, such as insulation, into an airstream. The air lock has two counter-rotating, generally cylindrical rollers in facing contact with each other along their edges, made of a resilient material such as... | 10/20/1992 |
| 5150822 | Mixing head for dispensing an actine ingredient An apparatus for dispersing an active ingredient, such as a fumigant, fertilizer or room freshener in which the active ingredient is placed in a sample cylinder and a pressurized solvent/propellent is subsequently introduced from a source. The solvent/pro... | 09/29/1992 |
| 5051040 | Fluidized bed combustion system that is controllable under pressure A fluidized bed combustion system that can be operated or controlled under pressure is provided. To eliminate the erosion or abrasion to which heat exchangers located in a fluidized bed combustion chamber are subjected due to the flue dust contained in th... | 09/24/1991 |
| 5020689 | Metering and dispensing system The invention is concerned with a method and apparatus for dispersing an active ingredient, such as a fumigant. The active ingredient is placed in a container and a pressurized solvent/propellent is subsequently introduced. The solvent/propellent expands ... | 06/04/1991 |
| 5009551 | Material handling system and control valve therefor A system for handling particulate material includes a rotary valve for feeding material from a holding device to a receiving device. The rotary valve includes a slide valve that is electrically controlled in response to sensed conditions in the handling s... | 04/23/1991 |
| 5004377 | Isolated insertion chute for suction-operated garbage disposal systems The invention relates to a separate insertion chute (103) of the type which at spaced intervals are connected to an underground suction conveying conduit (106) communicating with a refuse suction system, the upper end above ground of each chute being prov... | 04/02/1991 |
| 4909556 | Transport container for the transport of bulk material Transport container for the transport of bulk material provided with a filling-hole in the upper part and an emptying device in the rear. For the loading and unloading of also parcelled goods the container is provided with a side section that can be opene... | 03/20/1990 |
| 4893966 | Lock apparatus for introducing dry granular materials into a pneumatic conveying conduit and spray gun for such materials A lock apparatus for introducing granular dry material into a pneumatic conveying conduit (32), for example of a concrete gun, consisting of a material feeding hopper (4) having a shut-off valve (6) actuable by a pneumatic working cylinder (8). Beneath th... | 01/16/1990 |
| 4850751 | Method and apparatus for introducing bulk material into a pneumatic conveyor conduit Apparatus for passing a feed of particulate material into a pneumatic conveyor conduit includes a charging chamber communicating with the material feed and a closure arrangement having a closure cone axially movable between a position of communicating the... | 07/25/1989 |
| 4733619 | Powder feeder A powder feeder, includes a cylinder body connected to a gas blow pipe for fluidizing a powder at its bottom portion; a porous plate crossing the lower portion of the cylinder body above a gas blow hole; a partition plate which divides the interior of the... | 03/29/1988 |
| 4705433 | Pneumatic transportation system with a material feeder A pneumatic transportation system for transferring particulate material from a storage container at one pressure level to a receiving unit at another pressure level (e.g. in a feeding system for bed material to a combustion chamber of a PFBC plant). The t... | 11/10/1987 |
| 4687382 | System for controlling solid transport Methods and apparatus for controlling the flow of solids in systems containing solid/fluid slurries is disclosed. An L-valve, having subsequent thereto a separator for separating the solid and fluid phases of the slurry, and a way to regulate the flow of ... | 08/18/1987 |
| 4592679 | Pneumatic conveying process and apparatus In a process and apparatus for pneumatically conveying loose material in grain or dust form by discharge thereof from a conveyor container, through a conveyor conduit disposed downstream thereof, after the conveyor container has been emptied and before th... | 06/03/1986 |
| 4589592 | Garbage container to be emptied with the aid of vacuum For emptying a garbage room in a multistory residential building, a garbage container is placed in the garbage room, which container has a transport duct between the lower portion of the container and a garbage truck collection chamber, which can be evacu... | 05/20/1986 |
| 4498818 | Device for batch feeding of a fluidizable particulate material A silo for storing alumina having a conical outlet at the bottom thereof is fitted with an exchangeable feeding unit mounted over the conical outlet opening. The feeding unit is adapted to close off the outlet opening when in the non-operative position. T... | 02/12/1985 |
| 4459071 | Solids flow regulator An apparatus to serve as a valve to regulate the flow of particulate solids, from an upstream to a downstream location. The valve relies on pressure differential rather than moving mechanical parts. A plenum adjacent a chamber designed to accommodate a sl... | 07/10/1984 |
| 4437799 | Pipeline transportation system A hydraulic capsule pipelining system including a pipeline adapted for flow therethrough of water or other carrier liquid to propel cargo-containing capsules through the pipeline, and means for pumping the liquid through the pipeline utilizing a segment o... | 03/20/1984 |
| 4411935 | Powder flame spraying apparatus and method There is provided an improved powder flame spraying apparatus and method having a preheating nozzle in advance of a plurality of final heating nozzles into the converging flame envelopes of the latter of which hardfacing powder is dispensed. This powder i... | 10/25/1983 |
| 4381897 | Installation for transporting fine-grained material An installation for transporting fine-grained material to a consumer using two alternately filled and emptied pneumatic pressure vessels (3, 4) together with an outlet valve (12, 12') and a control nozzle (15, 15') in the material discharge pipe of each o... | 05/03/1983 |
