...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 7278551 | Dosing hopper A dosing hopper for producing wood material panels has a feed device (2) that distributes the supplied material flow of glued wood particles continuously over the width of the hopper (1). The dosing hopper supplies elongated flat wood strands for produ... | 10/09/2007 |
| 7156263 | System and method for metering fibrous material A system and method are used to meter fibrous material into a concrete mixture. The system includes an endless conveyor belt rotatably supported on first and second rollers. Pick up members on the belt project into the direction of travel for collecting fibrous mate... | 01/02/2007 |
| 6702151 | Modular bulk display and dispensing apparatus and method Apparatus and method for displaying bulk items and selectively dispensing a designated quantity of the bulk items from a multiplicity of the bulk items upon demand includes containing a multiplicity of bulk items in a volume of the bulk items within a bin... | 03/09/2004 |
| 6598629 | Sanding truck sandbagging apparatus A sandbagging manufacturing apparatus designed to be used with standard sanding trucks normally used with a broadcast spreader. The truck includes a large hopper with a hydraulically controlled conveyor belt located longitudinally inside the large hopper ... | 07/29/2003 |
| 6523721 | Powder and granular material supply system for closed system A granular material supply system has a granular material supply unit and a granular material feed unit. The granular material supply unit delivers a granular material through an inlet formed in a pressure case included in the granular material feed unit ... | 02/25/2003 |
| 6523727 | Dough feeding unit A metering unit for dough and related foodstuffs having a dough feeder unit, support structure, dough hopper, effluent housing, drive motor and centerless helix, with the effluent housing including an inlet, center and outlet section. The centerless helix... | 02/25/2003 |
| 6439436 | Storage bin for particulate materials A grain storage bin has a circular bin floor structure and a cylindrical bin wall upstanding from the floor. A bin aeration system includes a perforated air discharge tube mounted diametrically across the bin supported on a frame above the floor from one ... | 08/27/2002 |
| 6364598 | Removable feedgate The dump body of a dump truck includes a tailgate having an opening through which material in the receptacle can be dispensed by an endless conveyor in the dump body, and a feedgate for adjusting the rate of discharge is removably mounted on one of the ta... | 04/02/2002 |
| 6341930 | Divergent inlet for bulk material feeder and method of retrofiting feeder with same A bulk material feeder for improving material flow as the material makes the generally ninety degree (90°) transition from the downcomer to the generally horizontal conveyor. The downcomer presents an innermost divergent surface that extends upwardly fro... | 01/29/2002 |
| 6273665 | Divergent inlet for bulk material feeder A bulk material feeder is disclosed for improving material flow as the material makes the generally ninety degree (90°) transition from the downcomer to the generally horizontal conveyor. The downcomer presents an innermost divergent surface that extends... | 08/14/2001 |
| 6186731 | Removable feedgate The dump body of a dump truck includes a tailgate having an opening through which material in the receptacle can be dispensed by an endless conveyor in the dump body, and a feedgate for adjusting the rate of discharge is removably mounted on one of the ta... | 02/13/2001 |
| 6119895 | Method and apparatus for dispensing materials in a vacuum The present invention provides a method and apparatus for dispensing materials onto a substrate in a vacuum. In one embodiment, a dispensing system includes a dispensing vacuum chamber having an inlet to receive substrates for dispensing and an outlet to ... | 09/19/2000 |
| 5906297 | Multi-outlet depositor A multi-outlet depositor receives fluid material and displaces first and second portions of the material using first and second mechanisms, respectively, that are coupled together in a manner that causes volume of the first portion to vary according to vo... | 05/25/1999 |
| 5873396 | Sandbag-filling apparatus A vehicle comprising a motor for providing drive power to the vehicle, a hydraulic system powered by the motor, a container for containing a bulk quantity of fluent matter, and matter-dispensing apparatus comprising the hopper for receiving fluent matter ... | 02/23/1999 |
| 5853112 | Candy holder and candy feeding device A candy holding and retrieving device which moves a powdered candy or any suitable candy from a reservoir onto a plastic or rubber belt which delivers the candy to a user. The device includes a main housing which contains a motor, a power supply, a gearin... | 12/29/1998 |
| 5823734 | Rotatable feedgate A dump truck having a dump body which includes an adjustable feedgate for adjusting the size of a passageway through a rear opening at the rear of the dump body. The feedgate is rotatably mounted within the rear opening to provide for improved control of ... | 10/20/1998 |
| 5766642 | Apparatus for manufacturing granulated material A mechanism for making granulated material from a viscous substance includes a vessel charged with the substance and having a discharge arrangement such as a slit through which the substance can flow onto a cooling surface. A belt disposed above the cooli... | 06/16/1998 |
| 5402917 | Rotary drum for dispensing flowable material and heating hood thereof A rotoformer includes a rotary drum for dispensing drops or strips of a free-flowing compound onto a cooling belt. A heating hood overlies the drum and is swingable to an inoperative position to afford access to the drum. The hood is mounted for swinging ... | 04/04/1995 |
| 5307952 | Top dresser A top dresser (10) is disclosed in a first preferred form including a discharge gate (56) of a pusher (44) movably mounted in a hopper (30) for forcing material forward towards a rotating, cylindrical, dispensing drum (66) as the top dresser (10) is being... | 05/03/1994 |
| 5240150 | Ice cube storage apparatus A container housing is arranged with a front wall slot directed through the front wall of the container, with a deflector plate extending rearwardly and canted downwardly relative to an upper edge of the front wall slot. Access to the floor of the associa... | 08/31/1993 |
| 5012953 | Method of operating a hot melt dispenser Trigger-operated hot-melt dispenser with positive-feed mechanism wherein at least one continuous feed-belt in axial contact with a rod of thermoplastic material and operated to urge said rod into the melt chamber of said hot-melt dispenser is characterize... | 05/07/1991 |
| 4922463 | Portable volumetric concrete mixer/silo A modularly constructed, trailerable, skid mounted, multi-compartmented concrete mixer and cement storage silo having a plurality of longitudinally aligned, bottom mounted, driven feed chains. In a combination construction, a single motor is cooperatively... | 05/01/1990 |
| 4850304 | Automation system for a mixing and dispensing apparatus In an automation system for a mixing and dispensing apparatus, different colors of granite granules are placed into different silos. Dampers and proportion gates on the bottom of the silos permit specific proportions of different granite colors to fall an... | 07/25/1989 |
| 4744714 | Bin vibrating discharge device for surge or blending bins or the like A vibrating discharge apparatus for discharging particulate stored material from a surge or blending bin or the like, having a discharge end, a discharge apron defining an support surface near the bottom of the bin extending in a substantially horizontal ... | 05/17/1988 |
| 4733891 | Grit spreader for motor vehicles A grit spreader for motor vehicles consists of a container (1) for the gritting material, a dispersion channel leading to a vehicle wheel and an endless conveyor (5). The conveyor (5) is disposed in a first horizontal section (2) of the dispersion channel... | 03/29/1988 |
| 4630988 | Bulk material hopper A material handling hopper has an open top box with a chamber for holding bulk material. A bottom conveyor operates to remove material from the chamber. A divider located in the chamber reduces the bridging and packing of material in the chamber. The divi... | 12/23/1986 |
| 4583486 | Apparatus for depositing granules on a moving sheet The present invention relates to an apparatus in which a perforated belt travels across to a moving sheet upon which granules are deposited through holes in the belt.... | 04/22/1986 |
| 4496084 | Breading machine A breading machine for selectively dispensing flour breading or free flowing breading and wherein the machine has a frame and conveyor means supported in the frame defining a conveyance path having a product inlet end and a product outlet end, and a hoppe... | 01/29/1985 |
| 4478262 | Apparatus for filling portions of loose material into packaging containers An apparatus is proposed for transferring measured portions of loose material into packaging containers. The individual product portions, after being measured out, are to be filled rapidly and without interruption into packaging containers in such a manne... | 10/23/1984 |
| 4475669 | Non-flooding belt feeder A continuous flow, non-flooding gravimetric belt feeder is disclosed which may be used to convey fluid-like particulate material. The feeder includes an endless belt having spaced, transversely mounted cleats. A lateral wall is provided adjacent each of t... | 10/09/1984 |
| 4462743 | Apparatus for unloading silo Apparatus for unloading material from a silo comprises a chain drive wheel located near a discharge opening on one side of the silo, a chain idler wheel, a pair of angularly spaced apart rotatable chain guide wheels mounted on a ring which is drivable in ... | 07/31/1984 |
| 4456156 | Unloading apparatus for silo An apparatus for unloading a silo having side walls and a floor which includes a central chute that supplies material to a conveyor box which is covered except for the chute. A conveyor in the conveyor box conveys material from the central chute out throu... | 06/26/1984 |
| 4436226 | Material metering device A metering device for particulate material in which backups and caking of material is inhibited by the provision of a "live" metering gate consisting of an upper blocking section and a lower material contacting surface. The lower surface is continually mo... | 03/13/1984 |
| 4417802 | Particle dispenser An apparatus which dispenses toner particles into the chamber of a housing storing developer material. The toner particles are stored in the container and dispensed from the uppermost portion thereof.... | 11/29/1983 |
| 4416547 | Portable proportioning device Support means support an upright hopper means and mixing hopper means. Continuous conveyor means extend from adjacent the lower end of the upright hopper means to adjacent the upper end of the mixing hopper means. Motor means move the conveyor means to ca... | 11/22/1983 |
| 4407433 | Conveyor with telescopic feed tube An apparatus for the precise dispensing of particulate matter either at a uniform flow rate or in repetitious accurately measured discrete batches. The apparatus includes a housing having a hopper with a hopper outlet orientated over an endless conveyor b... | 10/04/1983 |
| 4355741 | Sack-filling machine A sack-filling machine having a filling tube through which material to be discharged into a sack is to be passed, the filling tube defined by at least one wall and including at least one conveyor belt having a material-feeding run which extends along the ... | 10/26/1982 |
| 4326598 | Steam driven road vehicle A firebox, steam boiler and steam condenser are mounted in a road vehicle such as a passenger automobile. A steam powered drive member, such as a steam turbine, is operated by the steam pressure from the boiler and has drive connection with the drive axle... | 04/27/1982 |
| 4323178 | Apparatus to provide an even layer or loose material to a suction conveyor An apparatus for supplying loose material for making tile-like elements comprising, a conveyor for receiving a continuous layer of the loose material, a loose material supply apparatus for supplying the continuous layer of loose material to the conveyor a... | 04/06/1982 |
| 4301763 | Powder dispensing apparatus An apparatus for and method of dispensing a powderlike material by gravity with substantial uniformity and a minimum contamination of the immediate environment is provided wherein the apparatus comprises a substantially horizontally disposed tubular body ... | 11/24/1981 |