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4230935 |
Immersion heater
An immersion heater is disclosed having a heating member with a small thickness and comprised of PTC thermistor material. The heating member has the same heat contact between each of its two major...
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4227069 |
Hot melt dispenser
A hot melt pumping and dispensing apparatus for heating and pumping a heat liquefiable product from a barrel includes a platen movable into the barrel and having a plurality non-perforated,...
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4223208 |
Heater with a ferro-electric ceramic heating element
A heater is disclosed having a PTC thermistor heating element rigidly wedged in an intermediate space of the member to be heated by use of at least one wedge-shaped member. The wedge-shaped member...
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4219728 |
Heater module for an apparatus for melting and dispensing thermoplastic material
A heater module adapted to be used in an apparatus for melting and dispensing thermoplastic material, with other like modules for forming a pre-melt and/or a melting stage for heating the...
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4214117 |
Furnace heated by radiation
A furnace which is suitable for analytical measurements is heated by radiation. For this purpose, a radiation source whose radiation is absorbed by the furnace wall is arranged near to the furnace....
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4201218 |
Therapeutic heat application
A portable heating device includes an envelope made by heat-sealing the edges of two flexible polymeric films, and a heat source within the envelope including, in one embodiment, a ribbon of...
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4196339 |
Heating apparatus for forming laminated plastic
This invention pertains to the forming of a laminated plastic such as Formica (trademark of Formica Corporation) having a decorative facing layer. A controlled heating cylindrical column of metal...
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4192992 |
Electric heating assembly for a fused bath
A heating assembly for a fused bath is disclosed. The assembly includes a heating element within a tube. Also, disposed within the tube is a first thermocouple. A second thermocouple is positioned...
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4179603 |
Radial blade heating device
An electric radial blade type heating element is provided for industrial furnaces or other heated devices in which the electrical conductors are relatively thin flat strips or blades, rectangular...
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4171346 |
Reactor heater
An electrical resistance heater for high temperature chlorination of alumina bearing material by gaseous chlorine within a reaction chamber. The heater comprises two, closely spaced, side-by-side,...
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4169128 |
Coal liquefaction apparatus
Disclosure is made of an apparatus for reacting carbonaceous material with heated hydrogen to form hydrocarbon gases and liquids suitable for conversion to fuels wherein the reaction involves...
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4163145 |
Aquarium heater
An aquarium heater having a heat resistant plastic housing. A heat producing electric resistance wire is positioned in the plastic housing in an aluminum foil container. In one embodiment, the...
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4158764 |
Device for heating liquid in a container
The device includes a coiled conductor formed of an alloy having a high electrical resistance and has an outer tubular casing of plastic material which is inert to acid or alkaline solutions. A...
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4156128 |
Electrical heater
An electrical heater is combined with a thermostat in a sealed enclosure itself sealed in a glass tube, the enclosure comprising two tubes telescoped together, one being translucent and containing...
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4152263 |
Heated water circulator for aquariums
A directional flow circulator is provided for aquariums for distributing heated water from the heater throughout the aquarium tank. The circulator is positioned concentrically with a heater and...
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4150281 |
Electric heater construction
A heater element is formed by disposing a pair of heater wires and a pair of thermocouple wires and a powdered mineral material in a metal sheath which is subjected to repeated drawing and...
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4149067 |
Aquarium heater
An aquarium heater including an elongated heater element including an insulating member and a wire heater extending from one end of the insulating member to the other end of the insulating member...
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4135552 |
Pressurizer heaters
A pressurizer for a pressurized water nuclear reactor power plant having a plurality of straight immersion heaters with pointed ends.
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4132886 |
Heating element
The heating element is made of a plurality of silicon carbide rods, at least four rods being employed in the heating element. The hot ends of all the rods are connected together by a single silicon...
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4131785 |
Electrically heated liquid tank employing heat pipe heat transfer means
The heating apparatus for applying heat to the interior of a chamber includes a modular, removable, electrical, heat-producing unit and a heat pipe mountable in a wall of the chamber with one end...
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4125352 |
Thermal valve pin
This invention relates to an improved valve pin for a valve gating injection molding system. Heat transfer to the gate area is extremely critical in valve gating systems and this is even more so...
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4124793 |
Aquarium water heater
An aquarium water heater having a heater element energized by first and second silicon-controlled rectifiers connected in parallel in opposing conductive relation, one rectifier providing energy to...
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4119020 |
Apparatus for making hot dogs and the like
A device for providing a cavity in a bun for receiving a filling such as a sausage comprises a heating probe adapted to be inserted into a bun to compress the material of the bun to form the cavity...
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4115686 |
Cartridge heater with improved thermocouple
A cartridge heater with improved thermocouple comprising a tubular metal sheath with a front end having a central opening therein, a metal plug engaged in and closing said opening, a filler of...
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4110602 |
Method and apparatus for freeing a railroad tank car bottom unloading valve made inoperable by solidified fluids within it
A portable apparatus for inserting into a bottom unloading valve of a railroad tank car which has been locked in an opened or partially opened position due to liquids solidifying therein. The...
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4107514 |
Submersible thermostatically controlled heaters
Instead of the usual glass case the heating element and thermostat of a submersible thermostatically controlled heater are disposed in separate cases made of metal and plastics respectively which...
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4106186 |
Boron nitride insulating material
High temperature BN-insulated heaters for use as fuel pin simulators in reactor thermal hydraulic test facility studies comprise a cylindrical housing and a concentric heating element disposed...
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4107510 |
Starting aids for combustion engines
An ignition aid for internal combustion engines includes a sintered refractory ceramic composite heating element having a high resistance central portion interposed between a low resistance...
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4090054 |
Electrical preheating apparatus
A preheating arrangement for bringing foundry ladles up to temperature is described. The arrangement comprises a slotted elongated graphite rod extending down from a ladle cover, a pair of clamp...
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4072847 |
Electrical heater for heating liquid
An electrical heater comprises a sealed glass tube containing a sealed tubular structure formed by, (a) a metal tube containing an electrical heating element insulated from the metal tube, and (b)...
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4069409 |
Electrically heated fluid coupling apparatus
An electrically heated fluid coupling apparatus having an electrical resistance heating element positioned inside a hollow heating conduit which runs along the side of the fluid conduit, which...
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4068116 |
Thermostatically protected electric immersion water heater
An immersion water heater particularly suitable for use in connection with animal watering buckets includes a housing fixed to an end of an electrical conduit and locatable on the bottom of a...
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4066201 |
Method of joining metal parts
A method of joining metal elements such as heating tubes, pipes, rods, metal cords, or other lengthy elements having similar profiles, with a plate or other flat, molded, metal surface by use of a...
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4046989 |
Hot water extraction unit having electrical immersion heater
Means for varying the heating rate of an immersion heater in a hot-water extraction unit comprising a solution tank in which an electrical immersion heater is mounted in order to decrease the...
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4033485 |
Multiple passage plastic injection nozzle with heaters
A system for distributing a single stream of plastic into a multiplicity of streams is disclosed. The system includes two members, a plastic receiving member and a plastic discharge member. The...
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4029941 |
Electric heater assembly
A partitioning sleeve is positioned in the main body of a thermal actuator to form a separate internal liquid reservoir from which fluid may be supplied to the actuator heater. The heater is part...
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4021643 |
Immersion heater for aquariums
A thermostatically controlled safety heater for upright immersion in an aquarium includes a housing with an axially extending, heat-transmitting tube forming a chamber in which an electric heating...
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4007371 |
Electric immersion heater for stock tanks
The invention comprises electrically heated cylinders to be placed immersed in the bottom of a tank of water. The heated cylinder is electrically heated by an electric heating element mounted...
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4005310 |
Electrically heated gravy warming ladle
A gravy warming ladle has a bowl comprising a pair of concavo-convex shell-like upper and lower parts with the upper part received within and having its bottom spaced from the lower part to form a...
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3997760 |
Electric heating element with bulkhead mounting means
An electric resistance heating element for use in appliances such as dishwashers includes a mounting grommet having a resilient body portion sized to be forcibly urged through an aperture formed in...
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3983361 |
Electric heating apparatus for heating corrosive solutions
A pyrex tank for heating corrosive solutions is formed with a main body portion having an open top and with a small annular cavity portion depending from the bottom of the main body portion. A...
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3980010 |
Cooking spit
A cooking spit has an insulating handle carrying a rod with electrically heated end parts disposed about a central part about which an open-ended tubular sleeve is removably fitted. The central...
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3973102 |
Heating and temperature control device for a bath-liquid
The invention contemplates an automatic device for closely held temperature control of a body of liquid via an electric heater, as for example via a liquid-immersed heater element. The control...
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3970821 |
Electrically heated torpedo
A torpedo heater device for plastic molding or diecasting equipment comprised of a novel casing having an integral heater core and means to seal the casing for retaining the heater core in place...
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3970816 |
Electric heater for heating lubricating oils
An oil heater for heating lubricating oils having infrared energy absorbtion peaks within infrared wavelengths ranging from 2.5 to at least 15 microns comprises an electrical infrared heating...
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3968347 |
Monolitic heating stator for thermally treating rollers
This document discloses a stator member for rollers used in the thermal treatment of elongated materials such as filaments, yarns, slivers, rovings, etc. The structure comprises a metal support, an...
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3965808 |
Internal bun toaster
A bun or roll toaster wherein the bun is spiked over and around the polytetrafluoroethylene-coated, stainless steel spike with an interior copper sleeve enclosing an easily controlled heating...
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3953707 |
Method for preheating aircooled, aircraft engines
An aircooled aircraft engine is preheated prior to starting by the insertion of electric heating devices into the blind holes, normally provided for the reception of thermocouples, in the metal...
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3950632 |
Probe mounting apparatus
A probe mounting apparatus adapted for use in the deep fat frying of French fries, fish, chicken and the like, wherein the length of cooking time is to be calculated by a timing computer responsive...
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3937923 |
Electric cartridge heater with metal sleeve adapter
Cartridge heaters are most frequently used for heating metal parts by insertion into bores in such parts. Such heaters are manufactured in various diameters to closely fit within complementary...
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