Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 6694802 | Delta P testing system for tube and shell type catalytic reactors A multi-tube differential pressure testing system for testing catalyst filled tubes of tube and shell type catalytic reactors having an upper tube sheet and multiple catalyst tubes having upper ends thereof fixed to the upper tube sheet. The system has at... | 02/24/2004 |
| 5897282 | Catalytic reactor charging system and method for operation thereof A catalyst loading system for utilizing catalyst from a bulk supply located adjacent but not on the upper tube sheet of a catalytic reactor and for mechanized measuring of multiple identical quantities of catalyst and for mechanized loading of catalyst pe... | 04/27/1999 |
| 5473998 | Cement kiln having tire injection system A cement kiln having a tire injection system. The tire injection system comprises an entrance chute having an outer end portion protruding outwardly of a wall of the kiln and an inner end portion which protrudes into the kiln. The entrance chute further i... | 12/12/1995 |
| 4948468 | Oil shale retort apparatus A retorting apparatus including a vertical kiln and a plurality of tubes for delivering rock to the top of the kiln and removal of processed rock from the bottom of the kiln so that the rock descends through the kiln as a moving bed. Distributors are prov... | 08/14/1990 |
| 4767322 | Apparatus for charging a shaft furnace Apparatus for charging a shaft furnace for calcining and sintering material in lump form, such as limestone, dolomite, magnesite or the like, with granular bulk material, with a charging silo arranged above the furnace shaft having a substantially circula... | 08/30/1988 |
| 4708643 | Apparatus for charging a shaft furnace for burning carbonaceous material Apparatus for charging a shaft furnace for burning carbonaceous mineral material in at least two furnace shafts comprises a common feed container, which is connected to each furnace shaft by a separate charging duct. In order to provide a simple structure... | 11/24/1987 |
| 4701101 | Modular multi-tube catalyst loading funnel A modular multi-tube catalyst loading funnel comprises a series of funnel modules, each equipped with a rotatable stirring rod, an opening at the bottom, and a variable-speed drive. With the apparatus, it is possible to control the drop rate of catalyst p... | 10/20/1987 |
| 4569057 | Material feed system for smelting furnaces A feed system for a smelting furnace having a plurality of feed chutes arranged in a spaced apart, circular array. The feed system includes a circular conveyor mounted adjacent the furnace and concentrically with the feed chutes. The conveyor also has a g... | 02/04/1986 |
| 4497609 | Method and device for continuous supply of lumps of material to a shaft A method and a device is provided for continuously supplying from above piece-shaped, i.e. lumps of, material to a shaft through which a high-temperature gas is conducted from below upwardly to a centrally disposed upper gas outlet. The piece-shaped mater... | 02/05/1985 |
| 4451925 | Charging system for electric arc furnaces An arrangement for charging an electric arc furnace with a relatively free-flowing charge of sponge iron or other iron-containing particles distributes the charge of particles within the furnace through a first chute before a melting stage of an electric ... | 05/29/1984 |
| 4435815 | Method and apparatus for charging a furnace The invention relates to a method and apparatus for charging an electric smelting or reduction furnace. In accordance with the invention, a charge tube movable within the roof or smoke hood of the furnace and is normally held in a protected position there... | 03/06/1984 |
| 4412770 | Charging of coke ovens and method A method and an apparatus is provided for charging particulate coal through ceiling holes into a coke oven. A conveyor above the coke oven ceiling is connected with each ceiling hole by a conduit. Mounted in the conduit is a first closure member which is ... | 11/01/1983 |
| 4402643 | Catalyst loader Apparatus for charging granular catalyst, e.g., cylindrically shaped catalyst, into a multiplicity of elongated reactor tubes is described. The apparatus comprises, in combination, a plurality of contiguously arranged storage hoppers arranged in a bundle ... | 09/06/1983 |
| 4211611 | Coke oven coal charging device A device for charging coke ovens of a horizontally disposed coke oven battery through charging chute in the roof of each coke oven which is openable at its top and from a coal supply which includes a circulating conveyor for circulating the coal in a path... | 07/08/1980 |
| 4133719 | Process and apparatus for charging inclined chamber coke oven An inclined chamber of a coke oven is defined by a heating side wall, a coke removal side, a horizontal chamber ceiling and a chamber floor inclined downwardly from the heating side wall to the coke removal side. Briquettes are charged into the chamber, t... | 01/09/1979 |
| 4049141 | Method of charging a plurality of coking ovens A plurality of coking ovens are arranged in a horizontal row, and an endless scraper conveyor is mounted above the charging holes of the ovens and has an upper run and a lower run. A quantity of coal is admitted onto the lower run of the conveyor at one e... | 09/20/1977 |
| 3945515 | Arrangement for preventing the escape of dust and gas during the filling of a furnace A furnace has a normally closed filling inlet. There is provided an arrangement for opening the filling inlet, then filling the interior of the furnace with a charge, and then reclosing the inlet, all in gas-tight and dust-tight manner, in order to preven... | 03/23/1976 |