Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 4375027 | Dual chambered high pressure furnace The high pressure furnace comprises a cylindrical pressure vessel with fr and rear pressure closures. An electrical heating element is supported within the interior of the pressure furnace. The front closure supports a relatively thin-walled inner contai... | 02/22/1983 |
| 4367051 | Relative time interval measuring instrument Upon depression of a number key, the timer memory corresponding thereto is started to be in its counting operation state, and when the number is depressed again, the timer memory stops its counting operation. When a relative difference key is depressed, a... | 01/04/1983 |
| 4365138 | Heated instrument-mounting plate A flat plate of thermally conductive material, such as aluminum, has mounting holes for connecting it on one side on a support and on the other side to an instrument which is to be thermally stabilized. The plate is internally traversed by a heating wire ... | 12/21/1982 |
| 4361716 | Current lead-in of the coaxial type for sealing to a container wall Current lead-in of the coaxial type, including at least two conducting tubes passing through a container wall, a gas-tight seal disposed between the tubes and the walls, an induction heating coil supplied with high frequency current from the tubes for pro... | 11/30/1982 |
| 4357485 | Ladle steel treatment system including three-part electrode casing A steel treatment system includes a ladle having a cover, a heating electrode mounted to extend through an opening in the cover, a casing surrounding the electrode and including lower, intermediate and upper sections, and a seal mounted at the cover about... | 11/02/1982 |
| 4347431 | Diffusion furnace A diffusion furnace (11) includes a typical process tube (12) and an outer envelope (26) which forms an annular chamber (37) with the process tube. A heating element (29) of high purity graphite substantially surrounds the process tube within the chamber ... | 08/31/1982 |
| 4346285 | Heating device employing thermistor with positive coefficient characteristic A heating device for heating fluid is disclosed. The heating device includes a tanning unit including a thermistor element having a positive temperature coefficient characteristic and adapted to generate heat when electric power is applied thereto. At lea... | 08/24/1982 |
| 4334145 | Energized range burner signal When a top burner of the electric range is energized, a sensible signal means is simultaneously activated. This sensible signal means is deactivated by the act of placing a cooking utensil upon said energized top burner. Circuit means are provided for ele... | 06/08/1982 |
| 4333171 | Electronic timepiece with diffusion resistor for compensating threshold variations An electronic timepiece comprising a quartz crystal oscillator for producing a time standard signal, a frequency divider, and a display driver. The electronic circuit comprises a digital logic circuit employing a complementary MOS integrated circuit (CMOS... | 06/01/1982 |
| 4333003 | Radiant airflow heat processing assembly A radiant heater comprising a plurality of individual heating elements depending from a pair of spaced apart parallel dielectric members and electrically connected to bus bars that are secured along one longitudinal edge of the dielectric members. The ind... | 06/01/1982 |
| 4331859 | Device for sterilizing false teeth There is disclosed a disinfecting unit specifically designed for false or artificial dentures. The unit includes a base providing a cavity, having a support wall partially defined by a heater block. A receptacle for the dentures is provided, which is of s... | 05/25/1982 |
| 4331858 | Open hearth oven An open hearth oven having an opening at the front thereof is provided with a shield arrangement for shielding against escape through the oven opening of infrared radiation emitted by radiating elements within the oven chamber. The shielding structure per... | 05/25/1982 |
| 4330701 | Arrangement for mounting a sensing box in an opening in an electric hot plate A mounting arrangement is provided for mounting a sensing box in an opening in an electric hot plate on which a cooking vessel is to stand. The sensing box is connected via a capillary tube to a controller and is pressed toward the cooking vessel by the f... | 05/18/1982 |
| 4328387 | Fail-safe thermostatically controlled circuit for use in apparatus for melting and dispensing thermoplastic material A fail-safe thermostatically controlled circuit is disclosed for use in high-throughput thermoplastic material melting and dispensing apparatus including a hopper into which solid thermoplastic material is deposited for feeding the thermoplastic material ... | 05/04/1982 |
| 4328388 | Electro furnace feeding and furnace fume utilization and control A metal melting furnace is provided having an enclosing roof that has a refractory brim portion affixed to and carried by the side walls, and has a refractory crown portion that is adapted to be removably positioned to close-off and open a central chargin... | 05/04/1982 |
| 4327280 | Smooth top cookers A radiant heater for use in "smooth top" cookers of the type in which a smooth top normally of glass ceramic overlays one or more generally circular electric heater elements supported on a layer of thermal and electrical insulating material such that the ... | 04/27/1982 |
| 4327278 | Simplified multiple speed hair dryer A simplified four heat, two speed hair dryer is provided having a housing with a plurality of heating elements mounted therein and a fan driven by a motor for blowing air over the heating elements and delivering hot air from the dryer. A source of alterna... | 04/27/1982 |
| 4327271 | Condensation heating apparatus An apparatus or a method for heating a component by the condensation thereon of a suitable vapor, for example to make a soldered connection in condensation soldering. The vapor is produced by passing a heat transfer oil through a vaporizer comprising perm... | 04/27/1982 |
| 4323761 | Radiant heat hair dryer A radiant heat hair dryer is provided, using a disc-shaped casing in which is mounted a ring-like, infra-red radiator, together with reflector means for directing the infra-red radiation through a grille-like member, that is shaped and constructed to supp... | 04/06/1982 |
| 4323760 | Method and apparatus for temperature control of heated fluid in a fluid handling system A method and apparatus is disclosed for maintaining uniform temperature in a pressurized, heated fluid which is distributed from an elongate manifold in at least one pressurized stream. Associated with each of a plurality of inlet conduits is a separate h... | 04/06/1982 |
| 4322835 | Housing assembly for instruments Housing for measuring instruments comprising at least two interconnectable housing elements, at least one of which includes the viewing window, and a resilient stirrup clamp including shanks engaging two opposite wall surfaces of the housing, having reces... | 03/30/1982 |
| 4321456 | Electrical hot air appliance A heating element for a hair dryer, fan heater or other hot air appliance has heating-conductor support means comprising a length of tube in the interior of which an electronic control arrangement is placed. Where the said arrangement comprises a plate or... | 03/23/1982 |
| 4321698 | Temperature compensated quartz wristwatch with memory stored predetermined temperature compensating data A quartz crystal wristwatch is temperature compensated by applying additional pulses to the divider circuit. The number and frequency of application of the additional pulses is stored in memory and based upon mean temperature data for the worn wristwatch ... | 03/23/1982 |
| 4320283 | Blow dryer with heater inside stand A blow dryer has a housing elongated along an axis and formed with a relatively large head and a slender handle. A two-part centrifugal fan having a hollow interior is mounted in the head and is driven by a motor mounted in the handle. A heater is provide... | 03/16/1982 |
| 4320479 | Analogue electronic timepiece with an alarm device An analogue electronic timepiece is described having an oscillator, a frequency divider, a hand display means, an hour and minute circuit for counting the output of the frequency divider, and an alarm setting circuit. An equality checking circuit adapted ... | 03/16/1982 |
| 4320244 | Melting furnace for the production of mineral wool insulation A melting furnace for the production of mineral wool insulation in the nature of a receptacle closed by a cover or crown through which spaced carbon electrodes extend from an external support and also through which particulate stock material is introduced... | 03/16/1982 |
| 4320284 | Heated fuser roll A heated fuser roll for use in a fuser apparatus for fixing toner images to a support surface is disclosed. The fuser roll includes a circular sleeve member having at least one heating unit positioned within the sleeve member. Each heating unit includes (... | 03/16/1982 |
| 4319125 | Infra-red radiant heater system A radiant heater system with a heat-radiating tubular conduit and a reflector for reflecting heat radiated by the conduit. The tubular conduit is supported along its length by spaced support structures. The reflector is disposed between and spaced from tw... | 03/09/1982 |
| 4316079 | Control arrangement for self-cleaning oven A control arrangement is provided for a self-cleaning oven or similar thermostatically controlled apparatus. The self-cleaning oven in one arrangement is of the type that includes a manual latching arrangement operated by a handle for latching a pivotally... | 02/16/1982 |
| 4315137 | Thermostat range controller A thermostat range control device for maintaining a thermostat temperature that has a substantially constant difference with respect to room temperature, and which allows the thermostat to respond quickly and accurately to changes in room temperature. The... | 02/09/1982 |
| 4314141 | Apparatus for heat shrinking a plastic film around goods stacked on a pallet In an apparatus for shrinking of a shrink film hood around goods stacked on a pallet, heat radiation elements and reflectors, serving to heat the film hood, are mounted in a gallow-shaped rod i.e. an inverted L-shaped carrier, with a U-shaped cross sectio... | 02/02/1982 |
| 4313050 | Means for anchoring a vessel to support in order to prevent spilling of the vessel content In a kitchen stove, the trim ring is secured against rotation and against upward removal to the top of the stove. The trim ring and the cooking vessel have an inter-engageable bayonet system to removably clamp the cooking vessel over the electric heating ... | 01/26/1982 |
| 4313049 | Electrical heating element for fluid media A heating element (for a hair dryer, fan heater or other electrical appliance) in which the turns of resistance heating wire are held in place, in edge recesses of support plate means, by a strip of heat-resistant cement applied to the supporting edges an... | 01/26/1982 |
| 4313052 | Cooking unit A cooking unit comprises at least two electric cooking plates, for example four such plates. Each plate can have a pair of electrical heating resistances. Power is supplied to each cooking plate via a switching unit, comprising a thermostat. Each thermost... | 01/26/1982 |
| 4311899 | Cooking apparatus A cooking unit comprises a substantially flat, thin-walled plate provided with helical grooves. Heating elements in the form of helical, flattened, tubular bodies are received in the grooves and provide a heating surface in which cooking vessels can stand... | 01/19/1982 |
| 4311898 | Electric baseboard heat storage apparatus and method of conversion A heat storage apparatus for a conventional electrical baseboard-mounted heater requires no modification of the heater and provides means for supporting, storing heat within and circulating electrically-heated air through blocks of heat retaining material... | 01/19/1982 |
| 4310747 | Method and apparatus utilizing a porous vitreous carbon body particularly for fluid heating A body of a specially prepared, porous vitreous carbon which does not crack or substantially change in electrical resistance with time when heated to elevated temperatures in air and which is used in a method or apparatus to heat a fluid stream flowing in... | 01/12/1982 |
| 4309593 | Electric heater which reduces the chance of electrical shock An electric heater construction which significantly reduced the possibility of electrical shock to a user thereof. This electric heater includes an outer casing with an open front, a protective grille mounted over the open front of the outer casing, a ref... | 01/05/1982 |
| 4309595 | Hair dryer A hand held hair dryer housing with a relatively small open end and a relatively large opposite open end, heater means, and a reversible motor-driven fan for selectively providing either a concentrated or a diffused flow of heated air through said small o... | 01/05/1982 |
| 4307285 | Toaster/oven with removable cooking chamber side liners A toaster/oven comprises a housing and a cooking chamber defined within the housing by a cooking chamber bottom panel, first and second cooking chamber side panels, a cooking chamber top panel and a cooking chamber back panel (which may be removable), the... | 12/22/1981 |
