Assignee: Thermo Electron Corporation

Location: Waltham, MA
No. of patents: 96

Number	Title	Issue Date
7197911	Methods and apparatus for mechanical resonance monitoring a mass concentration of particulate matter A particulate mass monitor includes a controller that monitors a change in a resonant oscillation frequency of a taut metallic membrane, as caused by deposition of the particulate matter on the metallic membrane. The metallic membrane, such as a foil or metallized p...	04/03/2007
7119597	Methods and apparatus to produce a voltage pulse A test circuit employs use of first and second switches to operably charge a capacitor to over 500 volts and, thereafter, discharge energy stored in the capacitor to test an over-voltage protection circuit associated with a pin of a semiconductor device. When switch...	10/10/2006
7111813	Support clip and pilaster apparatus and method A clip is used with a pilaster assembly, where the clip is snap-fit into the slots of the pilaster, so that the clip is retained when inserted into the slots. This provides the advantage that the clips tend not to fall out due to bumps or vibrations such as those th...	09/26/2006
7067821	Flood gun for charge neutralization A flood gun 10 for charge neutralization of an analysis region Ra of a sample S downstream of the flood gun, comprising: a first source 30 of electrons; a second source 50 of positively charged particles; and an extraction and focusin...	06/27/2006
7061236	Metal detector A metal detector has a circular excitation coil (10) through which foodstuffs to be tested (65) pass, on a conveyor belt (40). The excitation coil (10) is excited by a stable oscillator (50) and the lines of flux generated by the e...	06/13/2006
7045788	Multi-way radiation monitoring A multi-way radiation monitoring and detection system is capable of detecting a radiation source on or within traffic that can travel within M adjacent traffic ways, where M is an integer equal to or greater than a value of 2. The radiation detection system comprise...	05/16/2006
6885010	Carbon nanotube electron ionization sources An ion source for use in a mass spectrometer includes an electron emitter assembly configured to emit electron beams, wherein the electron emitter assembly comprises carbon nanotube bundles fixed to a substrate for emitting the electron beams, a first control grid c...	04/26/2005
6782765	Fluid flow transducer module and assembly A fluid flow transducer module includes a fluid flow conduit having an inlet for receiving fluid, a transducer for measuring rate of flow of the fluid, an interface in communication with the transducer and adapted to receive rate of flow measurements from the transd...	08/31/2004
5348765	Method of forming composite articles from CVD gas streams and solid particles or fibers A method for forming composite articles, particularly ceramic articles, from particles or fibers mixed in a thermally activated reactant gas stream. The particles or fibers are codeposited with material produced by chemical vapor deposition (CVD) onto a h...	09/20/1994
5154862	Method of forming composite articles from CVD gas streams and solid particles of fibers Disclosed is a method for forming composite articles, particularly ceramic articles, from particles or fibers mixed in a thermally activated reactant gas stream. The particles or fibers are codeposited with material produced by chemical vapor deposition (...	10/13/1992
4970392	Stably emitting demountable photoelectron generator A new method and apparatus for providing a stable, temporally controllable high current density electron beam from a photocathode has been developed. A low level of cesium and, possibly a stabilizing gas, is supplied to the photoemitting surface while the...	11/13/1990
4787843	Pressure balanced heat pipe Disclosed is a heat pipe particularly suited for isothermal transfer of heat in high temperature, high pressure operation such as the growing of semiconductor crystals. The heat pipe has a stem communicating with its lower end, a cooler surrounding a port...	11/29/1988
4671250	Direct-firing gas convection oven An efficient, low cost, gas-fired convection oven is disclosed. The oven includes a burner, such as a ceramic induced draft/boosted burner with premixed pressurized air/fuel gas supply, which fires combustion products through an opening in a baffle direct...	06/09/1987
4668390	High efficiency deep fat fryer Disclosed is a high efficiency deep fat fryer from whose fry tank fat is continuously withdrawn for heating and filtration. A pump circulates part of this fat through a helical- or serpentine-shaped finned-tube heat exchanger positioned between a gas-fire...	05/26/1987
4664181	Protection of heat pipes from freeze damage Disclosed is a heat pipe which is protected from damage due to freezing by the addition of small amount of a liquid such as an alcohol to its working fluid. Ethanol/water mixtures having ethanol concentrations from about 1 to 7.5 percent by volume are fou...	05/12/1987
4639874	System for monitoring and controlling position of hoists Disclosed is a system for monitoring and controlling movement of a hoist along a line of treatment tanks of an electroplating apparatus. Hoist-mounted optical sensing units of the system have pickups formed of opposed lines of infrared emitting diodes and...	01/27/1987
4622946	Jet impingement/radiation gas-fired cooking range A gas-fired cooking range having a powered combustion air and gas input; proportional turndown burner control irrespective of the number of burners being used or the degree of turndown of any burner; light-weight jet impingement/radiation members being pr...	11/18/1986
4552123	Gas-fired steam cooker A compact steam cooking unit includes a compartment for holding fresh or frozen food to be cooked by steam and an associated gas-fired generator of steam which are combined in a fully self-contained appliance which requires only conventional utility conne...	11/12/1985
4549933	Doctor blade with non-homogeneous stiffness properties A composite doctor blade with non-homogeneous stiffness properties and having a plurality of juxtaposed fibrous layers which are encapsulated in an epoxy resin. The composite blade has a fibrous core, intermediate uni-directional graphite fiber layers and...	10/29/1985
4519876	Electrolytic deposition of metals on laser-conditioned surfaces An improved laser-based method of depositing a metal on an electrically insulated metallic substrate is disclosed. Selected areas of the insulated plate such as an anodized aluminum plate are irradiated with laser energy to fracture the anodized layer and...	05/28/1985
4510922	Energy storage system having thermally stratified liquid A thermal energy storage system is disclosed for heating a liquid and establishing and maintaining thermal stratification of the liquid in a storage tank. The tank, which may store hot water for domestic use, contains a vertical header assembly which func...	04/16/1985
4493308	Radiant/conductive broiler A broiler for cooking food products has an upper heating unit located in a spaced relationship from the food and a lower heating unit in a close heat transfer relationship with the food. The upper unit is preferably a U-shaped radiant fire tube with a gas...	01/15/1985
4487691	Deep fat fryer with swivel filter element Disclosed is a deep fat fryer with a filtration system to continuously filter liquid cooking fat circulated by a pump. A fryer filter with a filter element of material such as carbon-impregnated cloth is located in the bottom of a fry tank and is rotatabl...	12/11/1984
4467783	Radiant/jet impingement gas-fired cooking kettle Disclosed is a vapor-jacketed cooking kettle having a compact, self-contained, gas-fired combustion system. The tiltable kettle includes a gas-fired cylindrical power burner which fires radially into a combustion chamber below a jet plate which in turn is...	08/28/1984
4460831	Laser stimulated high current density photoelectron generator and method of manufacture An electron beam generator particularly adapted for direct-write semiconductor lithography applications is disclosed which includes a photoemissive cathode, a modulable laser for illuminating the photoemissive cathode, and light optics to create an optica...	07/17/1984
4459176	Dewatering system with adjustable width suction slots A suction dewatering system for a papermaking machine has a suction device with an opening extending longitudinally in a direction transverse to the path of material travel through the machine. Elongated wear strips are supported on opposite sides of the ...	07/10/1984
4447590	Extrudable polyurethane for prosthetic devices prepared from a diisocyanate, a polytetramethylene ether polyol and 1,4 butane diol Reaction product of an aliphatic organic diisocyanate, a high molecular weight polyether polyol (poly tetra methylene ether glycol) and 1,4 butane diol. The resulting polymers have thromboresistant properties, a long flexural life and are extrudable. The ...	05/08/1984
4445919	In situ rapid wash apparatus and method Disclosed are a method and apparatus for delivering a solvent in the liquid state to a surface to be cleaned. The volume of the solvent and the time interval during which it is applied to the surface are selected so that the solvent reaches the surface in...	05/01/1984
4438636	Heat-actuated air conditioner/heat pump A heat-actuated air conditioner/heat pump is disclosed which includes a sealed, rotatable tube. The sealed tube contains a working fluid and includes an evaporator leg and a condenser leg, the condenser leg extending a greater distance from the axis of ro...	03/27/1984
4424335	Keratoprosthetic polyurethane A reaction product of 4,4' dicyclohexylmethane diisocyanate, polytetramethylene ether glycol and ethylene oxide-capped trimethylol propane. The resulting polyurethane is optically clear and suitable for use as an artificial cornea, or a permanently implan...	01/03/1984
4410358	Plasma recovery of tin from smelter dust Disclosed are a method and apparatus for recovering tin from tin smelter dust without the need for pre-agglomerating the dust particles. Dust containing tin oxides is directed into the tail flame of a plasma reactor, and the tin oxides are reduced to liqu...	10/18/1983
4386039	Process for forming an optically clear polyurethane lens or cornea Process for forming optically clear lenses or artifical corneas from a reaction product of 4,4' dicyclohexylmethane diisocyanate, polytetramethylene ether glycol and ethylene oxide-capped trimethylol propane. The resulting polyurethane is optically clear ...	05/31/1983
4381408	Method and apparatus for extraction of airborne amine compounds A method and apparatus are disclosed for extracting amine compounds from air samples without loss due to formation of nitrosamine artifacts. The apparatus includes a cartridge having a separation zone between a first port and a second port. The separation...	04/26/1983
4374660	Fluidized bed glass batch preheater A glass batch preheater in one stage of which hot flue gases from a glass melting furnace are passed through a bed of cullet and a bed of glass batch material. The bed of cullet, while being heated, filters dust and other particles from the hot flue gases...	02/22/1983
4348765	Thermionic laser A thermally pumped laser. The laser features an emitter, a collector spaced apart from the emitter, and reflecting elements adjacent to the space between the emitter and collector to form a cavity. A heat source is provided for heating the emitter to driv...	09/07/1982
4346330	Laser generated high electron density source Apparatus is disclosed for generating high density pulses of electrons thermionically. The apparatus includes a metallic target maintained within a low pressure cesium vapor atmosphere. A laser rapidly heats the cesiated target surface to a high temperatu...	08/24/1982
4335684	Micronized coal-water fuel slurry for reciprocating internal-combustion engines A fuel slurry and engine systems for using the slurry are disclosed. The fuel slurry is a uniform mixture of water and 20 to 50 percent by weight of particulate coal of maximum size equal to 20 microns, the small size promoting complete combustion of the ...	06/22/1982
4335080	Apparatus for producing selective particle sized oxide A plasma method and apparatus produce oxide particles having average diameters determined by adjustment of process conditions. Feed material is fed into a dual chamber reaction zone in which a plasma environment is established to cause the feed material t...	06/15/1982
4320288	Solar tracking system A dual mode solar tracking method and system in which a sensor of radiation from the sun normally tracks the sun at a rate determined by a priori information, departure from normal tracking and correction for tracking rate errors being introduced only whe...	03/16/1982
4301114	Molecular sieve trap for nitrogen compound detection A molecular sieve trap is disclosed for selective trapping of substances in a gas stream, the trap being particularly useful in systems for detecting nitrogen compounds such as N-nitrosamines or nitrogen oxides in a sample. The trap comprises a cartridge ...	11/17/1981

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Assignee: Thermo Electron Corporation