Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 4893674 | Method of producing a tubular distributor of a heat exchanger from juxtaposed porous strips of material A method for manufacturing a tubular distributor of a heat exchanger in which the distributor is formed by layers of material between which the ends of heat exchange tubes of a matrix are secured in fluid-tight manner. The layers are made of fibers which ... | 01/16/1990 |
| 4887665 | Connection system for interconnecting a heat exchanger and a pipe union A connection system for interconnecting a heat exchanger and a pipe union, in which the pipe union (1) opening out into an opening (6) of the water box (2) of the heat exchanger is fixed firstly to a flexible pipe in permanent manner and secondly to the w... | 12/19/1989 |
| 4877083 | Brazed heat exchanger and method of making the same Poor brazed joints in a heat exchange caused by improper venting during the brazing process are eliminated through the use of a baffle for disposition in a slot 32 in a tubular header 10, 12 which is formed of a plate-like metal piece having first and sec... | 10/31/1989 |
| 4867486 | Soldering structure of tubular material A soldering structure of a tubular material for soldering one end portion of a tubular material to an auxiliary plate with a soldering material coated thereto, wherein the plane auxiliary plate is formed therein with a communicating hole for allowing the ... | 09/19/1989 |
| 4860823 | Laminated heat exchanger A laminated heat exchanger includes a plurality of tube elements laminated with one another with fins interposed therebetween, and a single tank element having a refrigerant inlet and a refrigerant outlet, the tube elements and tank element being joined t... | 08/29/1989 |
| 4856824 | Method of manufacture of manifolds and manifold provided by such method An integral manifold for a heat exchanger is formed from a hollow shape having a plurality of individual risers, initially having substantially solid cross-sections and subsequently reshaped by means of a reverse impact extrusion process into hollow riser... | 08/15/1989 |
| 4829780 | Evaporator with improved condensate collection An evaporator is made up of a plurality of heat exchange modules each in turn made up of an elongated lower header 30 of non rectangular cross section and having a plurality of tubes 40 mounted by the header 30 along its length and extending therefrom in ... | 05/16/1989 |
| 4825941 | Condenser for use in a car cooling system A condenser adapted for use in the car cooling system, the condenser comprising a pair of headers provided in parallel with each other; a plurality of tubular elements whose opposite ends are connected to the headers; fins provided in the air paths betwee... | 05/02/1989 |
| 4823771 | Apparatus for solar heating A solar energy system for the heating of water in a spa or the like. The system comprises a solar collector array for receiving water from the spa, for heating the received water, and for then directing the heated water back to the spa. The solar collecto... | 04/25/1989 |
| 4809774 | Reversal chamber for a tube matrix of a heat exchanger A heat exchanger having first and second ducts respectively for the supply of compressed air to be heated and for the discharge of heated compressed air. A tube matrix includes first and second branches respectively connected to the first and second ducts... | 03/07/1989 |
| 4800955 | Heat exchanger A heat exchanger having an inlet duct for admission of a first fluid to be heated, an outlet duct for discharge of the first fluid after heating thereof, the ducts being arranged in substantially parallel relation, and an assembly of a plurality of heat e... | 01/31/1989 |
| 4775006 | Heat exchanger, particularly a coolant evaporator A heat exchanger, particularly a coolant evaporator, is provided that has several flat pipes that are arranged parallel to one another and are each expanded at their ends with respect to a central part and are closed off by caps. The expanded ends are pro... | 10/04/1988 |
| 4771942 | Vehicle crossflow heat exchanger In order to bring about, in the case of a crossflow heat exchanger with two heating sections which can be individually regulated through the heat transfer medium, a pipe routing adapted to the particular installation conditions in a motor vehicle, with mi... | 09/20/1988 |
| 4770240 | Manifold for a heat exchanger A manifold for a heat exchanger or the like formed from a single sheet of metal with a plurality of tubular portions formed in a row by drawing the metal sheet, and then bending the metal sheet to form at least one conduit in communication with the tubula... | 09/13/1988 |
| 4768586 | Ceramic heat exchangers A ceramic fiber-reinforced ceramic heat exchanger includes a tube sheet and one or more coiled, oval cross-section U-tubes formed integrally with the tube sheet, wherein both the tube and tube sheet are composed of a ceramic fiber-reinforced ceramic compo... | 09/06/1988 |
| 4759405 | Air conditioner condenser manifold An air conditioner condenser manifold uses a tube having a flat side and a semi-oval cross-sectional shape, with holes pierced into the flat side of the tube without removing any material from the tube. The material of the flat side of the tube within an ... | 07/26/1988 |
| 4749033 | Manifold and method of manufacturing the same A manifold, especially a supply or receiving tank in a heat exchanger, is provided as an extruded/drawn tube with an outwardly and longitudinally extending protrusion part. Fastening flanges with a size larger than the width of the protrusion part are an ... | 06/07/1988 |
| 4723601 | Multi-layer type heat exchanger A multi-layer type heat exchanger is formed by a row of parallel flat tubes each having tank portions spaced widthwise of the flat tube and disposed adjacent to one end thereof. Each tube defines therein a passage for a heat transfer fluid extending from ... | 02/09/1988 |
| 4712608 | Heat exchanger for the independent heating of the driver and front-seat passenger side of a motor vehicle A heat exchanger for the independent heating of the driver and front-seat passenger side of a passenger space, having flow pipes located at the ends of the heat exchanger at the transition between the upper and lower water compartment. These flow pipes ar... | 12/15/1987 |
| 4663812 | Method of manufacture of manifolds A method of manufacturing integrated manifolds for heat exchangers include providing hollow shape with a plurality of individual risers each having a substantially solid cross-section. Subsequently, the risers are reshaped by means of a reverse impact ext... | 05/12/1987 |
| 4651820 | Heat exchanger having adjustable baffles A heat exchanger of the type having a tube assembly made up of a number of tubes through which a first medium flows and around and between which a second medium flows to accept heat from, or transfer heat to, the first medium. One of the media is constrai... | 03/24/1987 |
| 4632182 | Heat exchanger for gases of greatly different temperatures A heat exchanger as well as a method of manufacturing the same, in which the heat exchanger bottom is constructed thermo-elastically flexible in a layered manner of construction taking into consideration the rigidity requirements thereof; each layer has t... | 12/30/1986 |
| 4632181 | Ceramic heat exchanger An all ceramic heat exchanger for heating ambient air from hot waste fumes. In the preferred embodiment, the inlet and outlet tube walls for the ambient air are formed with removable inserts having bell-shaped openings formed therein. Central tube walls i... | 12/30/1986 |
| 4621685 | Heat exchanger comprising condensed moisture drainage means A heat exchanger with a stack of alternating hollow panels and corrugated plates includes a unique arrangement for positive drainage of water which flows down onto lower headers of the hollow panels as a result of condensation of moisture contained in air... | 11/11/1986 |
| 4596286 | Rotary processor A rotary processor useful in mixing, conveying, and heating or cooling a fluid material. Interchangeable subassemblies each comprise a helical coil permanently affixed at each end to a terminal block. The terminal blocks of each subassembly are removably ... | 06/24/1986 |
| 4589265 | Heat exchanger for an air conditioning system evaporator A heat exchanger includes a plurality of hollow panels arranged in a stack with fins interspersed therebetween and each having a fluid passageway therein and an upper header and a lower header at opposite sides of the fluid passageway. An end plate is app... | 05/20/1986 |
| 4586566 | Arrangement for joining the tubes of a heat exchanger core with a connecting box particularly for evaporators An arrangement is disclosed for joining the tubes of a heat exchanger core to a connecting box, wherein the tubes are fastened to the connecting box and sealed, said tubes being secured to the connecting box by means of a friction joint and at least one s... | 05/06/1986 |
| 4579102 | Biomass heat exchanger furnace A hot air heat exchanger furnace that uses crop residue as a fuel source is provided for producing the heat required for various purposes, such as the drying of grains, peanuts, soybeans and other materials and for the heating of buildings. The furnace in... | 04/01/1986 |
| 4559994 | Passenger vehicle heat exchanger arrangement A motor vehicle heat exchanger for independently heating different passenger areas comprising first and second tube/fin block units for transferring heat from coolant flowing through tubes thereof to air flowing therethrough to first and second passenger ... | 12/24/1985 |
| 4554968 | Wrapped fin heat exchanger circuiting A wrapped fin heat exchanger having a plurality of circuits is disclosed. A bottom circuit of the wrapped fin heat exchanger is arranged in multiple rows and has circuiting to provide hot gaseous refrigerant to the areas of highest frost concentration dur... | 11/26/1985 |
| 4549605 | Single inlet/outlet-tank U-shaped tube heat exchanger A single inlet/outlet-tank U-shaped tube heat exchanger is disclosed comprising a tank having a header plate and a plurality of U-shaped tubes whose legs extend through and terminate with an open end at one side of the header plate. A first group of the t... | 10/29/1985 |
| 4535838 | Heat exchange coil and method of making A multi-circuit arrangement for a wound coil heat exchanger and a method for making it are disclosed. The coil circuits are wound from a continuous length of spine fin tubing; locations are determined for breaking into the wound, continuous length of tubi... | 08/20/1985 |
| 4520867 | Single inlet/outlet-tank U-shaped tube heat exchanger A single inlet/outlet-tank U-shaped tube heat exchanger is disclosed comprising a tank having a header plate and a plurality of U-shaped tubes whose legs extend through and terminate with an open end at one side of the header plate. A first group of the t... | 06/04/1985 |
| 4512069 | Method of manufacturing hollow flow profiles A method of manufacturing hollow flow profiles having optimum aerodynamic configurations in conformance with a commensurate application, about the respective outer skin of which there flows a first work medium during operation, such as hot gas, whereas du... | 04/23/1985 |
| 4502530 | Waterbox for a shell and tube heat exchanger A waterbox for a shell and tube heat exchanger is disclosed. The waterbox is attached at one end of the heat exchanger to a tube sheet through which heat exchange tubes extend. Nozzle connections are made to the waterbox through a top member having an acc... | 03/05/1985 |
| 4498529 | Heat exchanger The heat exchanger according to the invention comprises extremely flat oval-shaped tubes (3) extending in a mutually parallel and spaced-apart relationship and are connected on their narrow side to manifold pipes (1,2) for forward and return flow. To ensu... | 02/12/1985 |
| 4485867 | Heat exchanger There is illustrated and described herein a heat exchanger including rows of tubes, a pair of headers secured to the ends of the tubes, a groove formed in each of the headers adjacent the peripheral wall thereof and intermediate adjacent rows of tubes, a ... | 12/04/1984 |
| 4475586 | Heat exchanger A heat exchanger with at least one main tube, closed off at one end, into which compressed air, which is to be heated, is admitted and, after being heated, is removed. The main tube has at least two channel guideways which are separated from one another i... | 10/09/1984 |
| 4453592 | Expansion guide A multiple module heat exchanger having a serpentine path for one fluid to flow transversely through adjacent modules while a second fluid flows longitudinally therethrough. A guide pin carried by one module and a mating receptacle carried by a module adj... | 06/12/1984 |
| 4449510 | Biomass heat exchanger furnace A hot air heat exchanger furnace that uses crop residue as a fuel source is provided for producing the heat required for various purposes, such as the drying of grains, peanuts, soybeans and other materials and for the heating of buildings. The furnace in... | 05/22/1984 |
