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Patent No. 6004596

Sealed Crustless Sandwich

A sealed crustless sandwich for providing a convenient sandwich without an outer crust which can be stored for long periods of time without a central filling from leaking outwardly.

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Class 338/301 - Element coiled on flat or ribbon base


Subclass of Class 338 - Electrical resistors
Definition: Subject matter wherein the resistance element is wound or
No. of patents: 18
Last issue date: 02/13/2007


NumberTitleIssue Date
7176421Straight ribbon heater
A heater for heating a rigid fluid line or hose for freeze protection. The heater has a base made of an outer base layer, a middle base layer attached to the outer base layer; and an inner base layer attached to the middle base layer. The inner base layer can be unc...
02/13/2007
5676872Flexible heating element having a layer of fixing varnish
A heating element has a flat, flexible strip of electrically insulating material around which is wound a conductor wire. A layer of fixing varnish covers the turns of the conductor wire and the flat strip. Two clips attached to the ends of the strip provi...
10/14/1997
5486682Heater assembly for swaged cartridge heater and method of manufacture
A cartridge heater assembly to be swaged has a sheath with head and slug ends. A resistance heater unit in the sheath includes a flat rectangular core, a resistance wire winding on the core, and first and second core covers, one on each side. Each end of ...
01/23/1996
5334818Modular high density electric heating element arrangement for an air flow heater
A heating element for an air flow comprises a channel shaped bracket including a base and side walls at right angles thereto within which is mounted a pair of mica sheets arranged parallel to the base and at right angles to the sides and connected to the ...
08/02/1994
4884053Surface mount wirewound resistor and method of making the same
A surface mount wirewound resistor having a conventional wirewound resistor embedded in a plastic body member with terminal axial leads of the resistor being severed at the opposite ends of the body member. A U-shaped metallic terminal pad or clip is secu...
11/28/1989
4525230Method of manufacturing a ballast resistor support member
A method of manufacturing a reinforced strip of insulative material comprising the steps of extruding a thermoplastic insulative material in the shape of a tube or spaced apart strips about a plurality of separated and substantially parallel reinforcing s...
06/25/1985
4492887Compact resistor assembly for rotary electric machine
A rotary electric machine including a stator with a rotor journalled for rotation within the stator about an axis and carrying an electrical conductor. The resistor is mounted on the rotor and is electrically associated with the conductor. The resistor is...
01/08/1985
4471214Electrical heating element for heating a plate and process for the production thereof
An electrical heating element (18) for heating a plate, e.g. a glass ceramic plate (14) has a multilayer insulating support (12) in whose dish-shaped depression heater coils (18) are arranged in spiral form. The heater coils are located on the insulating ...
09/11/1984
4431981Pressure unit assembly
A pressure unit assembly for providing an electrical signal representative of sensed pressure, for example an oil pressure unit assembly for an automobile engine. The unit is adapted for fabrication by automated equipment and it makes efficient use of con...
02/14/1984
4418328Method of manufacturing a ballast resistor support member and finished article
A method of manufacturing a reinforced strip of insulative material comprising the steps of extruding a thermoplastic insulative material in the shape of a tube or spaced apart strips about a plurality of separated and substantially parallel reinforcing s...
11/29/1983
4378488Heater for an aquarium
An immersible heater for an aquarium includes a waterproof, heat-resisting, flat plastic case which is tripartitioned in its interior, one chamber holding a flat coil carrier bonded or welded to the case; an upper chamber contains a leaf spring actuated b...
03/29/1983
4326121Electric immersion heater for heating corrosive liquids
An electric immersion heater of planar construction for use in industrial processes is constructed of a non-corrodable material and may be immersed at the side of a processing not containing corrosive liquids. The heater includes a thin planar polymeric s...
04/20/1982
4320286Heater element
There is provided a flexible electric heater element and a process for making such a heater element. The flattened ends of two lead wires are disposed on a first layer of material which includes a vulcanizable elastomer. The ends of a resistance wire are ...
03/16/1982
4272673Heating element
A heating element is comprised of [A] a shaped, electrically insulating substrate, said substrate including a reinforced polyimide composite, [B] a continuous, electric resistor element in entwining relationship with, and at least partially inlain within ...
06/09/1981
4209686Electrical resistance heater
An electrical resistance heater comprises a unitary ceramic coil support and mounting member having a horizontally elongated coil support portion around which a helical coil of conductive wire is wound and a vertically downward extending leg portion at ea...
06/24/1980
4203197Method for making a ceramic bond heater
An electric band heater of low expansion characteristics having an integral ceramic core with resistance wire sandwiched therein and encased within a metal housing, the core being formed from a wire wound ceramic sheet sandwiched between ceramic sheets; a...
05/20/1980
4185263Wire-wound resistor
A wire-wound resistor has an adhesive applied to the wire and the insulative substrate upon which the wire is wound at a predetermined location. The wire is then cut or otherwise broken at that location to open-circuit the resistor. The adhesive holds the...
01/22/1980
4163146Electrical heating element comprising a helix of wire wound on at least one insulating plate
A heating element comprises a resistance heating wire formed with closely adjacent zigzag loops and wound helically on an insulating plate or a pair of such plates mounted crosswise and possibly narrowing conically towards one end. Opposite loops engage t...
07/31/1979
 
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