Did You Know...
...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!
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| Number | Title | Issue Date |
| 7281384 | Poultry chiller with improved product distribution and antibacterial count Birds are moved through chilled water by bird moving means such as an auger or by a series of paddles. The birds tend to accumulate in a predetermined path in the water. Streams of water that include an antibacterial additive are directed toward the predetermined pa... | 10/16/2007 |
| 7237944 | Scraped heat exchanger having blade with protective rest nub Attachment apparatus and method for interlocking attachment of a scraper blade with a drive shaft of a scraped surface heat exchanger includes a blade having dual attachment beams and a central locking member, and at least one pin having dual fingers each for interl... | 07/03/2007 |
| 7207376 | Dual scraped, thin film, heat exchanger for viscous fluid A heat exchanger for viscous fluids includes a pair of frustum-shaped bodies (1) and (2) providing the heat-transmitting surfaces. The outer body is confined by gate-flanges (3) and (4) through which is inserted a bearing-and-seal housing... | 04/24/2007 |
| 7172016 | Internally mounted radial flow, high pressure, intercooler for a rotary compressor machine A header construction intended for use in a heat exchanger (36) employed in a relatively high pressure application includes an array of generally parallel tube runs (84) with fins (82) extending between adjacent ones of the tube runs. At least o... | 02/06/2007 |
| 6938435 | Method for cooling meals and stirring device embodied as heat exchanger The invention relates to a method of producing a plurality of portions of a precooked food wherein the food is initially cooked at temperatures above 80° C. and prepared, the food is then cooled in a cooling phase within a maximum time of 120 min passing through th... | 09/06/2005 |
| 6158237 | Rotatable heat transfer apparatus Heat transfer apparatus comprises a refrigeration assembly having a low pressure region and a high pressure region. The apparatus may also include a power generation assembly connected to the refrigeration assembly between the low and high pressure region... | 12/12/2000 |
| 6061924 | Batch sludge dehydrator A dehydrating apparatus includes a chamber for receiving wet material to be dehydrated. A rotatably-mounted agitator is provided with the chamber. The agitator is adapted to agitate material in the chamber when the agitator rotates in a first direction an... | 05/16/2000 |
| 5964278 | Heat exchanger A heat exchanger has been developed with a helical insert (9) permanently mounted in a housing (2). Between the windings in the insert (9) there is formed a helical channel (20) for one heat exchange medium. The insert (9) is designed with a channel (10) ... | 10/12/1999 |
| 5701747 | Automatic rapid chilling system A system for automatically rapidly chilling liquids and semisolids which includes a frame which supports a drive motor which contains a substantially vertical drive shaft having a connecting member at one end. A sealed, hollow chilling utensil which conta... | 12/30/1997 |
| 5673748 | Heating chamber for solid material A heating chamber is rotatable about its longitudinal axis and contains a number of heating tubes orientated parallel to each other. Solid material which is lifted up during the rotation can become detached from the heating tubes and upon impact can lead ... | 10/07/1997 |
| 5575160 | Freeze crystallization for the removal of water from a solution of dissolved solids A freeze crystallization concentration system is disclosed for separating a liquid feed stream into a more purified liquid and a concentrate in which only a single pass through a freeze-crystallizer and ice separator is required. The crystallizer, which c... | 11/19/1996 |
| 5555796 | Apparatus for heating of bulk materials Heat is applied to a solid or semi-solid material in a cylindrical container in such a way that a precise, predetermined amount of heat is transferred to a horizontal layer of the material until it softens sufficiently to allow the heating element to sink... | 09/17/1996 |
| 5518067 | Scraped surface heat exchanger A scraped surface heat exchanger comprises a pair of concentric heat exchange tubes. A heat exchange medium passes through the annular chamber between the tubes and a fluid, in particular one whose viscosity increases as it passes through the heat exchang... | 05/21/1996 |
| 5488836 | Method of and device for heat exchange with a fluid in the course of partial freezing The present invention relates to a device for heat exchange between a refrigerant in the course of vaporization and a fluid to be cooled in the course of freezing. According to the invention, the device comprises a conduit for the fluid to be cooled, a sh... | 02/06/1996 |
| 5295533 | Heat exchanger A heat exchanger for exchanging heat between a first fluid and a second fluid comprises a moving partition member for heat transmission between the first fluid and the second fluid, a housing partitioned by the moving partition member into a first chamber... | 03/22/1994 |
| 5279637 | Sludge treatment system A method of converting industrial, domestic or other sludge, into a pelletized or granular fertilizer, as well as a sludge converter for practicing the method. The sludge is dewatered to form sludge cake solids which are dried in a dryer, and then sorted ... | 01/18/1994 |
| 5141328 | High speed mixing apparatus A high speed mixing apparatus is shown for slurry materials which includes a stationary housing and a cylindrical rotor mounted for rotation within the housing. The rotor has an outer surface which is embossed with a repeating pattern of pyramidal shapes,... | 08/25/1992 |
| 5117655 | Heat exchanger A heat exchange has a main body and a drive shaft in the main body. There is a motor to drive the drive shaft. A rotor is mounted on the drive shaft and has a central hub. Pairs of spaced blades extend radially from the hub to an outer chamber, attached t... | 06/02/1992 |
| 4960168 | Heat exchanger A heat exchanger fan having a hollow central shaft. Hollow blades are formed on the central shaft and a peripheral flange is attached to the distal ends of the hollow blades. The interior of the shaft communicates with the interior of the blades, and open... | 10/02/1990 |
| 4941749 | Hub for an agitator having hollow blades and an internal heat-conveying fluid flow circuit In apparatus for mixing or kneading various substances, hollow blades are connected to an agitator hub of the invention which comprises: a fluted ring (9) threaded over the shaft (11) and carrying the roots (20) of hollow blades (2); an axial fastening liner (... | 07/17/1990 |
| 4934448 | Rotary heat exchanger A rotary heat exchanger comprises a plurality of hollow disc shaped members which are arranged along a distribution conduit and are rotatable about an axis which is concentric with the axis of the distribution circuit. Two diametrically opposed exhaust co... | 06/19/1990 |
| 4856580 | Heat exchanger A conveying screw having a tubular helical flight attached only at its opposite end portions to a hollow conveying screw body. Heat exchange medium introduced into the hollow body is transferred along the tubular helical flight.... | 08/15/1989 |
| 4770236 | Rotary dryer A paddle type rotary dryer includes a hollow shaft and a plurality of tubular members for interconnecting the interior of a shaft with the interior of each of the paddles. The tubular members extend inwardly into the shaft and prevent the flow of condensa... | 09/13/1988 |
| 4711041 | Rotary drier with lifting element A drier for the heating and drying of wet, comminuted organic materials comprises a stationary housing with a revolving, hollow axle or rotor (1) with inlet and outlet for a heating medium, and where the rotor has a number of annular drying elements (2) d... | 12/08/1987 |
| 4698310 | Apparatus for fermentation of organic material A horizontal cylindrical tank contains a conveyor screw rotatable on a horizontal axis below the symmetry axis of the tank, the latter having at its lower part an inlet at one end for organic material and an outlet at the other end for fermented material.... | 10/06/1987 |
| 4660628 | Heat exchanger A heat exchanger (10) for indirectly heating, drying and cooling materials comprises a hollow rotor (40) having an inlet (46) of heating and cooling medium and an outlet (47) of the medium or its condensate, a casing mounted on the hollow rotor, a plurali... | 04/28/1987 |
| 4658890 | Rotary blade type fluid condenser A condenser is provided with a heat exchanger which is rotated in an airtight cylindrical vessel filled with a fluid to be condensed. The rotated heat exchanger has a structure almost similar to a rotor of a steam turbine, namely, has a structure formed o... | 04/21/1987 |
| 4658891 | Method and apparatus for thermally processing viscous, shear sensitive materials There is provided a thermal processor and method for thermally processing non-Newtonian, shear sensitive, viscous materials which are difficult-to-dry and difficult-to-handle, in particular dewatered waste water sludge from industrial plants such as metal... | 04/21/1987 |
| 4640345 | Rotating heat exchanger This invention provides a structure of a heat exchanger in which a hollow drum, into which a heating or heated medium can be charged, is rotatably housed in a cylindrical outer casing, a large number of hollow projections are formed on the outer periphera... | 02/03/1987 |
| 4621684 | Rotary heat exchanger with circumferential passages The heat exchanger is composed of a plurality of heat conducting finned discs materially shaped and joined to form concentrically and annularly disposed, circumferential passages for isolated flow of fluid streams in indirect countercurrent, cocurrent, an... | 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 |
| 4522587 | Rotating melter A horizontally disposed helical coil is positioned around and in communication with a hollow horizontal shaft extending lengthwise of a tank having oppositely disposed inlet and outlet ports. Hot oil is directed into the hollow shaft and circulated throug... | 06/11/1985 |
| 4425962 | Heating apparatus A steam heated beatershaft for use in a cooking chamber is shown in FIG. 1 having at its drive end a driven shaft (2) and at its opposite end a hollow shaft (4) which in use is connected to a steam supply whereby steam can be fed from a concentric steam c... | 01/17/1984 |
| 4401151 | Device for pumping a liquid or gaseous current medium A device for pumping a liquid or gaseous current medium has a casing designed to guide the flow of the current medium and a rotary bearing motor driven rotor wheel designed to pump the current medium through the casing. The rotor wheel is equipped with a ... | 08/30/1983 |
| 4395132 | Stirring gear with internal heating A stirring gear adapted for internal heating comprising a central tubular shaft for the supply of a heat exchange medium and stirring paddles mounted perpendicularly to the shaft and provided with hollow interspaces through which the heat exchange medium ... | 07/26/1983 |
| 4377202 | Rotary heat exchange apparatus provided with a spherically coiled heat transfer tube A rotary heat exchanger characterized in that a spherically coiled heat transfer bypass tube is provided concentrically about a reflux type heat transfer double-tube at a part thereof, the outer tube of the double tube being rotatable, wherein a suction t... | 03/22/1983 |
| 4353413 | Rendering dryer A dryer is provided with interacting heat transfer stator and rotor for improved processing capability. The stator comprises a stationary row of planar heat exchange banks supported within the vessel of the dryer. The rotor has a complemental number of an... | 10/12/1982 |
| 4307573 | Thermal-cycle engine A comparatively low heat differential is utilized for energy generation wherein flow of a fluid from a low temperature reservoir to a high temperature reservoir is maintained by the weight of the fluid, for example through utilization of centrifugal force... | 12/29/1981 |
| 4301860 | Rotary drum heat exchanger A heat exchanger is disclosed, comprising a shell housing a rotor. The rotor comprises a series of hollow bodies whose interiors are hydraulically connected to each other and which are secured to a shaft which is rotatably mounted in the shell. One liquid... | 11/24/1981 |
| 4281963 | Apparatus for the conveyance and/or treatment of hot gases An apparatus is disclosed for the conveyance and/or treatment of material-laden hot gases in a furnace for the calcination and sintering of lime, magnesite, dolomite or the like. The apparatus is utilized as a ventilator or ventilator mill in the furnace ... | 08/04/1981 |
