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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 126/529 - And additional flow path through hollow walled heat exchanger


Subclass of Class 126 - Stoves and furnaces
Definition: Subject matter wherein structure around said flame includes
No. of patents: 18
Last issue date: 02/29/2000


NumberTitleIssue Date
6029654Vented fireplace construction
A vented wood or gas-log fireplace is formed from a sheet metal member bent to form side and rear panels. A pair of spaced apart sheet metal plates are connected between the side panels and have rear edges spaced from the rear panel. The rear edges of the...
02/29/2000
6003507Gas heater having firebox with controllable outside air mixing vent
A fireplace has a firebox with a controllable outside air vent to provide a source of cooler air for mixing with and modulating the temperature of the air heated by the fireplace. The air vent is vertically formed between a combustion chamber and a surrou...
12/21/1999
5967139Gas burning fireplace unit with damper
A gas fireplace unit has a combustion chamber in which a gas burner is provided as a heat source, and the gas fireplace unit has a heat exchanger on an upper wall of the combustion chamber. A first set of ports pass through the upper wall into the combust...
10/19/1999
5901701Unvented fireplace construction
An unvented gas-log fireplace is formed from a sheet metal member bent to form side and rear panels. A pair of spaced apart sheet metal plates are connected between the side panels and have rear edges spaced from the rear panel. The rear edges of the plat...
05/11/1999
5626127Clean face air circulating fireplace
A fireplace including a heat exchanger beneath the combustion chamber floor. The front panel or surround of the fireplace housing includes a central opening which accesses the combustion chamber. Room air inlets and outlets, which are ducted to the heat e...
05/06/1997
5572986Fireplace heat exchanger
A system for heating the air in the room containing a fireplace includes a heat exchanger mounted at the top portion of the combustion chamber of the fireplace to extend across the chimney flue opening and a fan for circulating room air through the heat e...
11/12/1996
5347983Draft hood attachment device
A novel draft hood for mounting on top of a gas conversion unit to form an adaptor and coupler between the gas conversion unit and a chimney includes a box structure having a guide flange and a plurality of positioning flanges thereon. A down draft divert...
09/20/1994
5313932Hood for fireplace
A fireplace has a manifold positioned between a combustion chamber and a flue. The manifold has a pair of inlets to supply dilution air to the flue, one extending from a front face of the fireplace, and the other from a rearward location. A baffle extends...
05/24/1994
5009220Safety enclosure for coal, gas or wood-burning fireplace
A reduced clearance system, or heat shield, for a coal, gas or wood burning fireplace having a cast iron surround, a hood and a grate, said heat shield including a sheet metal box, preferably a double wall sheet metal box with insulation between the wall ...
04/23/1991
4947826Chimney and fireplace construction
Elongated, vertical air chambers having an open upper end and a closed lower end are located within or attached to the walls of a fireplace, where the upper ends open only into the interior of the fireplace. Air heated within the air chambers rises into t...
08/14/1990
4878483Plate heat exchanger and heating stove with the plate heat exchanger
Heating stove which permits essentially two modes of combustion: (a) upwards combustion i.e. with combustion air entering from beneath the grates. (b) downwards from the combustible material i.e. the combustion air enters from above the hearth so that the...
11/07/1989
4361131Circulating-air heating stove with exit air heat extractor
A circulating air wood burning heating stove/fireplace combination has a combustion chamber for burning fuel. The combustion chamber is in the form of a shell defined by inner walls of the stove and a rearwardly disposed air outlet manifold. Spaced outer ...
11/30/1982
4230092Method and apparatus for improvements in convective heating
The efficiency of a convective heating system employing an elongate firebox is dramatically increased by, inter alia, increasing combustion zone volume to approach that of the firebox and increasing residence time of rising combustibles at ignition temper...
10/28/1980
4191162Energy saving air-flow heater
The within invention comprises a stove unit or fire box to be used to heat the inside of buildings. It is particularly designed to be used inside the hearth of fireplaces. It has slots and openings in its panel flanges for permitting the panels to be adju...
03/04/1980
4161171Sliding fireplace andirons
A set of fireplace andirons are slidable with respect to the fuel (log) supports. The unit may be formed integrally with a fireplace structure or as a separate distinct assembly. The sliding anvils may support other elements, such as a cooking grill....
07/17/1979
4141336Fireplace stove
A fireplace stove that is quickly and easily installed in a conventional fireplace with little or no modification of the fireplace or chimney comprises a firebox that is shaped and dimensioned to be at least partly received in a fireplace but with clearan...
02/27/1979
4096849Fireplace unit with sloping bed plate
A fireplace unit wherein room air is circulated under the firebox bed plate has the bed plate sloped upwardly toward the rear to assist in convective flow of the room air. To accommodate ash discharge, a chute depends from the elevated rear portion of the...
06/27/1978
3998203Air heater for fireplaces
An air heater for installation in a fireplace located in a room to be heated having a lower metalic portion having a hollow back wall surmounted by a flue portion also having a hollow back wall communicating with the hollow back wall of the lower portion ...
12/21/1976
 
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