Matches 351 - 400 out of 506 < 1 2 3 4 5 6 7 8 9 10 11 >
Match Document Document Title
3621204 ELECTRICAL HEATING ELEMENT WITH FUSED MAGNESIA INSULATION  
An electrical heating element comprising a resistance wire in a metal tubular jacket insulated therefrom with a fused granular magnesia is improved from the standpoint of electrical leakage or loss...
3619565 ELECTRIC IMMERSION HEATER  
An electric immersion heater for use with home aquarium tanks. A glass tube containing at the bottom thereof an electric heating element is yieldably suspended within and in spaced relation to a...
3609343 DECORATIVE LIGHT DISPLAY  
A light display for use within a fishtank or the like for decorative or lighting purposes, the tank having a viewing area sufficiently translucent to allow a view therethrough of its contents,...
3602691 ELECTRICAL HOT PLATE ASSEMBLY FOR LUNCH BOXES  
An attachable and detachable hot plate assembly for a conventional lunchbox to which it is removably attached by means of small brackets with spring hangers that are mounted and insulated so as to...
3596295 ICE PROTECTION SYSTEM FOR SWIMMING POOLS  
A swimming pool is protected from ice damage by an internally heated tube placed to form a water passageway extending above and below the expected ice level so water can be forced up through the...
3589522 BOOT RACK  
A drying rack upon which boots or mittens may be dried, the rack comprising a tray having a plurality of upwardly extending posts upon which the boots or gloves may be draped in an inverted...
3584192 HUMIDIFIER WITH FLOATING VAPORIZING CHAMBER  
A humidifier has a vaporizing chamber floating on the water in a reservoir. The chamber is insulated from the bath for limiting heat transfer from the chamber to the bath and has a lower inlet...
3576426 THERMOSTATICALLY CONTROLLED ELECTRIC AQUARIUM WATER HEATER  
A water heater for home aquariums, the device being adapted for partial immersion in the aquarium water. It comprises a casing the upper portion of which has a multiple-size bracket for attachment...
3560707 HEATING RODS  
The invention is concerned with heating rods which are arranged to be suspended in and to heat the water in an aquarium, the rods consisting of a heating coil embedded in an insulating material...
3557344 IMMERSIBLE ELECTRICAL HEATING DEVICE  
Disclosed is an electrical heating device for immersion in liquids to be heated, said device being made up of a supporting frame member on which is mounted an electrical heating unit comprising an...
3549861 SELF-HEATED THERMOS BOTTLE  
3548154 ELECTRIC HEATING OVEN  
3546431 IMMERSION HEATER AND METHOD OF MAKING THE SAME  
3546430 APPARATUS FOR HEATING CAULKING MATERIALS  
3544764 IMMERSION TYPE ELECTRIC WATER HEATER WITH ELECTRODE ASSEMBLY  
3536893 IMMERSION HEATER  
3525849 HEATING INSERTS  
3515851 ROLLER CURLER  
3502847 APPARATUS FOR HEATING THE HEADS OF INGOT MOULDS OR THE GATES OF CASTING MOULDS  
3499189 CARTRIDGE HEATER FOR COLD MANIFOLD MOLD  
3497677 ELECTRIC HEATER UNIT FOR LIQUID RESERVOIRS  
3483358 ELECTRICALLY HEATABLE PACKAGE  
3476915 IMMERSION HEATERS  
3473005 HAIR ROLLER HEATING APPARATUS  
3450860 LIQUID HEATER WITH HIGH TEMPERATURE SAFETY CONTROL  
3444356 IMMERSION HEATER  
3441711 ELECTRIC HEATER PLUG FOR WATER SYSTEMS  
3440109 STORAGE BATTERY WITH THERMOSTATICALLY CONTROLLED ELECTRIC HEATERS  
3439150 HEATING DEVICE HAVING A SPECIALLY POSITIONED CONTROL THERMOSTAT THEREIN  
3433030 AUTOMATIC LIQUID FREEZER  
3428781 LIQUID HEATING AND CIRCULATING UNIT  
3423571 INSULATED ELECTRICALLY HEATED BOTTLE  
3417482 Boot and shoe dryer  
3417230 Electric heat lamp and electric devices  
3412231 Extrusion die including electrical cartridge heaters  
3407283 Ice fishing hole heating device  
3399295 Thermostatically controlled electric immersion heater units  
3395267 Sealed and removable electrical heater assembly  
3387364 Method of terminating resistors  
3387634 Coil-forming device  
3382346 Thermostatically controlled constant temperature bath  
3375319 High temperature electrical heating unit  
3371192 Electric aquarium heater  
3354294 Tubular, electrical, heating element with bulkhead fitting  
3340382 Multi-cell electrical heater  
3335459 Cartridge heater constructions including extrusion dies  
3329803 Fish tape construction  
3326183 Power input to aquariums  
3326185 Aquarium light with aerator  
3324280 Insulated metal sheath heating element for electric water heaters  
Matches 351 - 400 out of 506 < 1 2 3 4 5 6 7 8 9 10 11 >