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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 |
| 4841999 | Brake durm cleaner assembly and method of cleaning The brake drum cleaner assembly includes a water hose, and a unitary spray adapter of plastic or the like releasably connected by a clamp or the like to the water hose. The adapter has a rear tubular stem portion inserted in one end of the hose and connec... | 06/27/1989 |
| 4809643 | Gas distribution system for muffle-type furnaces A gas distribution system provides a gas to a chamber comprising a feed tube, having a tube-like configuration with an input and an output. The gas supplied to the input escapes via the output, the output being configured to have a first and second slot o... | 03/07/1989 |
| 4735222 | Spray system for a dishwashing machine A spray system is disclosed for forming directed streams of liquid under pressure. A supply conduit having an open end and a manifold communicating with a plurality of spray nozzles and having an inlet conduit with an open end cooperate for insertion of t... | 04/05/1988 |
| 4721252 | Hot-melt sputtering apparatus A hot-melt adhesive dispenser having spray nozzles connected to a nozzle manifold receiving hot-melt adhesive material from a heated dispenser head. The spray nozzles have a pair of flow paths, one within the other, terminating near the nozzle outlet. A s... | 01/26/1988 |
| 4717075 | Particulate dispersion apparatus A depicted embodiment of the apparatus comprises a housing having a chamber therewithin and a pair of ports opening into the chamber. One port admits an energized gas, and the other admits a particulate powder, into the chamber. Tubes conduct the powder t... | 01/05/1988 |
| 4700662 | Sludge lance wand A sludge lance wand for cleaning once through steam generator tubes. A curved high pressure fluid feed tube has a plurality of feed tube extensions attached at one end and a first nozzle brace attached at the other end and in fluid communication with the ... | 10/20/1987 |
| 4699323 | Dual spray cone electromagnetic fuel injector An electromagnetic fuel injector is provided intermediate its solenoid actuated valve and a spray tip having an enlarged axial discharge passage extending therethrough with an orifice director plate having two sets of orifice passages extending therethrou... | 10/13/1987 |
| 4657188 | Spray system for a dishwashing machine A spray system is disclosed for forming directed streams of liquid under pressure. A supply conduit having an open end and a manifold communicating with a plurality of spray nozzles and having an inlet conduit with an open end cooperate for insertion of t... | 04/14/1987 |
| 4541473 | Apparatus for spraying an air-water mist cooling for use in continuous metal casting An exhaust hole is formed in an exhaust side wall of a mist atomizing nozzle of an apparatus for spraying the mist for cooling for and is used in continuous metal casting. An introduction inlet is provided in an introducing side wall on the side opposite ... | 09/17/1985 |
| 4477244 | Torch This disclosure is directed to an oxy-hydrogen torch (10) comprised of a plate (16) captured between first and second outer members (12 and 14). Each outer member has a plenum (18) which open towards, and is separated by, the plate (16). The plate (16) ha... | 10/16/1984 |
| 4444622 | Steam distribution A steam distributor for applying steam to a paper sheet moving beneath it and spaced from the distributor. The distributor has a leading edge and a trailing edge relative to the sheet movement. There is a header for steam extending along the leading edge.... | 04/24/1984 |
| 4438883 | Dynamic pressure attenuator and method A dynamic pressure attenuator comprising a housing and a plurality of tubes extending through the interior of the housing and defining wind passages. Each of the tubes has a plurality of radially extending ports. The housing has an inlet to admit a gas to... | 03/27/1984 |
| 4437708 | Cutting devices for mining and tunnelling machines A cutting device for a mining or tunnelling machine takes the form of a roller with cutter bits which rotates at the end of a movable arm as is known. Grooves in the roller receive plate-like components which support water spray nozzles radially within th... | 03/20/1984 |
| 4429471 | Fluidized bed air distributor Fluidized bed apparatus comprising a fluidized chamber having a grid plate below said chamber, a feed gas channel below said grid plate, and a fluidized bed gas distributor, said fluidized bed gas distributor comprising a nipple, a cap, and a bushing, whe... | 02/07/1984 |
| 4402143 | Bottom for fluidized bed A bottom for a fluidized bed conveyor is composed of a plurality of members provided with openings and located in contact with each other so that their points of contact are gas impermeable at least during operation of a fluidized bed. The openings may be... | 09/06/1983 |
| 4397631 | Pre-mix forced draft power gas burner A forced-draft gaseous pre-mix power gas burner having a shaped and perforated burner plate wherein the hole sizes are related to the plate thickness and the holes are formed in a unique pattern, all of which prevent flashback and noise or screech while a... | 08/09/1983 |
| 4397694 | Spray nozzle assembly for filter devices A spray nozzle assembly for spraying washing liquid onto a moving surface of a filter cake. The respective spray nozzles are communicated with a pressurized source of wash liquid, and are arranged adjacent the filter cake in successive doubled rows. The l... | 08/09/1983 |
| 4307842 | Nozzle particularly for lasers A plurality of arcuate, secondary (fuel) nozzle members are juxtaposed, so that respective two of them define between them a curved, primary slit nozzle, producing a primary (oxidizer) expansion flow while the two flows mix downstream, predominantly trans... | 12/29/1981 |
| 4286393 | Bottom for fluidized bed A bottom for a fluidized bed conveyor is composed of a plurality of members provided with openings and located in contact with each other so that their points of contact are gas impermeable at least during operation of a fluidized bed. The openings may be... | 09/01/1981 |
| 4272026 | Sprinkling device for absorption towers A sprinkling device for absorption towers comprising collectors for feeding sprinkling troughs of rectangular section with an acid and also constituting a support structure for the troughs. The collectors rest on a tower jacket by supports placed in cavit... | 06/09/1981 |
| 4247047 | Modular zoned digital coolant control system for strip mill rolls Metal strip reducing rolls are precisely cooled in multiple zones across the width of the strip by the selective activity of modular valve assemblies on coolant headers mounted near the reducing rolls. Each valve module may possess one or more remotely co... | 01/27/1981 |
| 4215823 | Laser nozzle construction A laser nozzle, optical cavity walls, and combustion manifold system is formed having a plurality of laser nozzle members formed having two elongated projections on each side thereof, a forward projection and a rearward projection, and when said members a... | 08/05/1980 |
| 4214706 | Air distribution system An improved air distribution system for cooling electronic components mounted on printed circuit boards. The system includes an air plenum chamber of rectangular cross section. Openings are formed in the side walls of the chamber to permit air under press... | 07/29/1980 |
| 4210286 | Pole mounted weed killer dispenser A liquid weed killer dispenser is disclosed. The dispenser is adapted to be mounted on and disposed about a pole such as a telephone or telegraph pole. The dispenser includes a box-like holder for water and a weed killer which is dispersible in the water.... | 07/01/1980 |
| 4169558 | Water distribution chamber for an electric steam generator Horizontal damping elements are arranged in the water distribution chamber to damp out wave action in the water flowing to the individual compartments formed by vertical baffles. The damping elements may be integral with the baffles to form one-piece memb... | 10/02/1979 |
| 4155178 | Tube for impinging jet air drier A tube for an impinging jet air drier for wood veneer has a circular cross-section throughout 270 degrees of its circumference, the remaining 90 degrees comprising two planar portions, one disposed perpendicularly to the direction of travel of a sheet of ... | 05/22/1979 |
| 4135875 | Apparatus for burning gaseous fuel A device for burning gaseous fuels in which the stoichiometric quantity of air for complete combustion is mixed with the fuel gas by entrainment. The fuel gas is discharged through openings arranged in a two dimensional array and the openings are so space... | 01/23/1979 |
| 4116383 | Method and apparatus for mixing fluid Methods and apparatus for mixing fluids which pass through a plurality of fluid passageways arranged as a repeating pattern of clusters which form a geometric array are disclosed. The axes of the passageways are offset from the overall flow axis which is ... | 09/26/1978 |
| 4098462 | Applicator nozzle for use in centrifugal casting An applicator nozzle for applying a coating solution onto the molding surface of a metal mold for use in centrifugal casting. The applicator nozzle mounted on an applicator lance is provided, at its one end facing the molding surface, with a plurality of ... | 07/04/1978 |
| 4085171 | Spray cooling system A system for spray cooling large quantities of heated water has a plurality of spray forming means each consisting of a plurality of associated nozzles connected by piping to pumps, each of the associated nozzles having an outlet constructed and arranged ... | 04/18/1978 |
| 4022382 | Surface cleaning device A high pressure wall of water is directed at a surface to be cleaned from a plastic-type discharger tube having nozzles mounted therein. The discharge tube is joined at right angles to a plastic-type inlet tube. The inlet tube connects to a garden hose th... | 05/10/1977 |
| 3968936 | Air outlet apparatus An air outlet apparatus with a plate bounding an air compartment or chamber, and carrying nozzles protruding from the plate. The plate possesses openings distributively arranged over the length thereof, each of which openings is sealingly occupied by a re... | 07/13/1976 |
| 3936003 | Multiport high density burner A burner for burning a mixture of a combustible gas and air including a curved wall member provided with a multiplicity of ports distributed throughout a substantial area of the wall. The ports are arranged in an ordered pattern such that every port, with... | 02/03/1976 |
