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Vladimir Zworykin, television pioneer ; Talking about an invention in which he played a critical role.
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| Number | Title | Issue Date |
| 8186957 | Fan propeller, in particular for motor vehicles The fan impeller (10) comprises a hub (14) and blades (12) extending radially outward from the hub, the blades having a flattened airfoil profile cross section with a leading edge (24) and a trailing edge (26) between which a chord... | 05/29/2012 |
| 7789628 | Plastic fans having improved fan ring weld line strength Injection molded ring fan embodiments and methods for making them. The methods influence material flow during the injection molding process such that a major portion of the materials flowing in opposite directions in the outer rings preferably flow past one another,... | 09/07/2010 |
| 7559744 | Propeller fan for heat exchanger of in-vehicle air conditioner There is provided a propeller fan in which a clearance between a rotary vane wheel and a shroud is constant three-dimensionally to improve air blowing efficiency and suppress noise. Furthermore, there is provided a propeller fan in which a span length of the rotary ... | 07/14/2009 |
| 7442010 | Impeller, in particular for an axial fan An impeller for an axial fan of the type adapted to be pressed onto a rotating rotor comprising a number of blades. The blades protrude radially outward from a substantially tubular hub, which carries the blades and is adapted to be pressed onto the rotating rotor. ... | 10/28/2008 |
| 7419359 | Axial impeller with enhance flow An axial impeller (1), with enhanced flow, rotating in a plane (XY) about an axis (2) comprises a central hub (3), whose diameter is smaller than the diameter of the drive motor (3a), a plurality of blades (4) having a base ... | 09/02/2008 |
| 7377751 | Cooling fan and shroud with modified profiles A cooling system includes a cooling fan with an outlet and an inlet and a shroud surrounding at least a portion of the cooling fan. The cooling fan includes a plurality of fan blades, and each fan blade includes an inlet portion and an outlet portion that define an ... | 05/27/2008 |
| 7249931 | High efficiency air conditioner condenser fan with performance enhancements Twisted blades for outdoor air conditioner condensers and heat pumps that improve airflow efficiency to minimize operating power requirements. The blades can run at approximately 850 rpm to produce approximately 1930 cfm of air flow using approximately 110 Watts of ... | 07/31/2007 |
| 7246691 | Fluid friction clutch for a motor vehicle fan A fluid friction clutch for a motor vehicle fan comprises at least one rotatably mounted shaft, a drive element firmly mounted on the shaft so as to rotate with it and a driven element rotatably mounted about the axis of the shaft. The drive element and driven eleme... | 07/24/2007 |
| 7192253 | Method for producing a fan wheel and fan wheel produced by this method A method for producing a fan wheel (1), in particular for a motor vehicle, which is produced by injection molding of a plastic provided with glass fibers, the casting compound being cast in via a ring or cone gate. Also disclosed is a fan wheel (1) pro... | 03/20/2007 |
| 7188699 | Axle assembly with cooling pump An axle assembly with a cooling pump. The cooling pump includes a disk-shaped wheel with a plurality of radially-spaced ducts formed therein. The wheel is positioned in proximity to the axle assembly and rotated, allowing the ducts to draw air therethrough and direc... | 03/13/2007 |
| 7168922 | Plastic fans having improved fan ring weld line strength A method to influence material flow during the injection molding of thermoplastic, polymeric ring type fans such that a major portion of the materials flowing in opposite directions preferably flow past one another, or collide at an angle relative to one another, ra... | 01/30/2007 |
| 7136285 | Wave-fans and wave-fans with heat sinks A wave-fan comprises a wavy surface, generally sinusoidal in the direction of rotation, which rotates in close proximity to the fins of a heat sink. The wave-plane fan is suitable for use with a flat heat sink, and a wave-ring fan is suitable for use with a cylindri... | 11/14/2006 |
| 7118333 | Electric cooling fan and case of electronic or electric device A case that is used for an electronic or electric device has an opening portion arranged at a vicinity of a fan motor that generates airflow inside and outside the case. The opening portion has a protection portion for preventing a finger or other matters from enter... | 10/10/2006 |
| 7114921 | Fan and blower unit having the same A cooling fan includes a cylindrical boss portion, a plurality of blades extending from the boss portion in a radial direction and a ring member integrated with radial outside edges of the blades. The ring member has an axial dimension smaller than an axial dimensio... | 10/03/2006 |
| 7097430 | Injection moulding of plastic fans A method of manufacturing a fan from a plurality of fan blades (12), comprising the steps of: providing an injection moulding tool (30) which defines a fan hub section (14); assembling a predetermined number of preformed fan blades with the inje... | 08/29/2006 |
| 7083387 | Axial flow fan An axial flow fan. The axial flow fan includes an impeller, an annular structure, and a plurality of connecting elements. The impeller has a plurality of blades, arranged radially. Each blade has an outer periphery. The outer periphery has a top portion. The annular... | 08/01/2006 |
| 7063125 | Fan penetration feature for in-vehicle testing A fan penetration fixture consisting of a threaded shaft and a lock nut design. The fixture is designed to take the place of the fan clutch on a fan drive assembly in the vehicle being tested for a desired cooling system performance characteristic at each possible f... | 06/20/2006 |
| 7044712 | Axial-flow fan This present invention relates to an axial-flow fan including a central hub connected with a driving shaft of a motor, and a plurality of blades extending radially along the circumference of the hub for blowing air toward an axial direction, the plurality of blades ... | 05/16/2006 |
| 7040865 | Fan spacing coupler A fan spacing coupler includes a tubular member that has a first end and a second end. The tubular member includes a first portion adjacent to the first end and a second portion adjacent to the second end. The first portion of the tubular member has an outer threade... | 05/09/2006 |
| 7037077 | Radiator fan and engine cooling device using the same Whereas for each propeller blade of a radiator fan, an attachment angle θ1 at a propeller blade base portion, projected onto a plane parallel to an attachment surface of the propeller blades with respect to the boss is set in a range of 35 to 45°, an attach... | 05/02/2006 |
| 7014425 | Low pressure fan with Y-shaped blades A fan 10 includes a central hub 14, an outer ring structure 18, and a plurality of fan blades 12. Each blade is of generally Y-shaped configuration having first and second separate branches 12a, 12b, respective... | 03/21/2006 |
| 6986639 | Stator blade for an axial flow compressor In an axial flow compressor, an apical angle at a leading edge of a stator blade progressively increases from a root end to a tip of the stator blade whereby the stator blade loss and noises caused by unsteady inter-blade airflow can be minimized. Preferably, the ap... | 01/17/2006 |
| 6945758 | Drive support and cover assembly for tubeaxial fan A tubeaxial fan (10) broadly including a cylinder (12), a propeller (14) rotatably supported in the cylinder (12), and a drive assembly (16) operable to rotate the propeller (14) is disclosed. The propeller (14) inclu... | 09/20/2005 |
| 6939105 | Airflow guiding structure for a heat-dissipating fan A heat-dissipating fan includes a casing having an air outlet, a base mounted in the air outlet, and a plurality of guiding plates in the air outlet. An impeller is mounted on the base that is supported in the air outlet by the guiding plates. The guiding plates are... | 09/06/2005 |
| 6921250 | Engine cooling fan with electromagnetic clutch Apparatus for conveying air to radiators of motor vehicles and the like having a fan (10) having a plurality of blades (12) each radially mounted its own coupling device (31) on a central body (11) and able to be rotationally actuated abo... | 07/26/2005 |
| 6914779 | Controlling thermal, acoustic, and/or electromagnetic properties of a computing device A computing device includes a housing with various electrical and/or mechanical components included therein. Disposed within the housing is a processor assembly that includes a fan. The fan is configured to draw air into the interior of the housing and force air hea... | 07/05/2005 |
| 6908287 | Axial flow fan Disclosed is an axial flow fan capable of achieving reduction of noise while having a high blowing efficiency compared to the power consumption of a motor adapted to drive the axial flow fan. The axial flow fan includes a hub, and a plurality of blades extending rad... | 06/21/2005 |
| 6837322 | Ventilation system for electric-drive vehicle A centrifugal blower (70) for an electric-drive vehicle (71) having three independent air outlets (82, 86, 90) receiving air from a single impeller (78). A first radial airflow (84) provides cooling air to an alternator (106... | 01/04/2005 |
| 6830434 | Cooling fan A cooling fan has a ring-shaped metal spacer, a boss of substantially a cylindrical shape made of a synthetic resin that is molded integrally with the spacer as an insert and lural blades that extend outwardly from the boss. A deep-drawn part is provided on an outer... | 12/14/2004 |
| 6790006 | Flexible metal element fan isolation mount A flexible metal disk used to mount the fan to the fan drive. The metal disk is a resilient mounting, and as such reduces vibration levels between the fan and fan drive, thereby preventing damage to various components within the cooling system. The flexible metal di... | 09/14/2004 |
| 6789654 | Multiple coupling fan drive A multiple coupling fan drive provides power to a fan in a cooling system. An input shaft drives a constant viscous coupling and a variable viscous coupling, both of which are operative to drive the fan. ... | 09/14/2004 |
| 6729844 | Controller for variable pitch fan system An electronic control device for opening and closing valves in a valve assembly that actuates a variable pitch fan system capable of operating in a plurality of fan blade pitch positions including a temperature switch actuated in response to a temperature condition ... | 05/04/2004 |
| 6609887 | Fan for a motor vehicle, equipped with guide vanes A fan in which, in order to improve straightening of the airflow, the axial length (L) of the guide vanes lies between 40 and 60 mm, and their angle of inclination Ω with respect to a radial plane lies between 25 and 35°.... | 08/26/2003 |
| 6579063 | High efficiency, inflow-adapted, axial-flow fan An efficient axial flow fan comprises a central hub, a plurality of blades, and a band, and is designed to operate in a shroud and induce flow through one or more heat exchangers--in an automotive engine cooling assembly, for example. The fan blades have ... | 06/17/2003 |
| 6558123 | Axial flow fan The axial flow fan (1) comprises a central hub (3), a plurality of blades (4), each blade (4) having a root (5) and an end (6) and being delimited also by a convex edge (7), whose projection onto the plane of rotation of the fan is defined by a parabolic ... | 05/06/2003 |
| 6554574 | Axial flow fan The axial flow fan (1; 30) comprises a central hub (3; 33) a plurality of blades (4; 34) which have a root (5; 35), and an end (6; 36). According to one embodiment, the blades (4; 34) are spaced at unequal angles (θi . . . , n) which can vary ... | 04/29/2003 |
| 6530748 | Enhanced fan and fan drive assembly A fan drive assembly including a cooling fan (11) and a fluid coupling device (13). The cooling fan includes a fan hub (17), a spider (15), and a plurality of fan blades (19). The coupling device has an output coupling assembly (21) including a body (23) ... | 03/11/2003 |
| 6499956 | Resonator-integrated fan shroud and resonator-integrated fan shroud with air intake duct A hollow vessel (1) which is partitioned into one or a plurality of hollow chambers (S) by blow molding is used as a resonator (2), and the hollow vessel (1) is arranged to form a fan shroud body (3), and that a drain hole (13) is formed in a bottom porti... | 12/31/2002 |
| 6491502 | Center mounted fan module with even airflow distribution features A fan shroud structure 10 including a shroud body 12 having a pair of opposing first sides 14 and a pair opposing second sides 16. The first sides 14 are joined with the second sides 16 at corners 18 so as to form a box-like configuration defining an inte... | 12/10/2002 |
| 6483423 | Vehicle-use cooling fan driving apparatus provided with a trouble sensing function In a vehicle-use cooling fan driving apparatus, a circuit is connected to a drain terminal of a driver transistor in order to sense a current of two motors which are connected in parallel. The circuit amplifies voltages of the terminal and source terminal... | 11/19/2002 |
