|Publication number||US2359057 A|
|Publication date||Sep 26, 1944|
|Filing date||Feb 28, 1942|
|Priority date||Oct 13, 1941|
|Publication number||US 2359057 A, US 2359057A, US-A-2359057, US2359057 A, US2359057A|
|Inventors||Donald Skinner George|
|Original Assignee||Donald Skinner George|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (70), Classifications (14)|
|External Links: USPTO, USPTO Assignment, Espacenet|
Sept. 26, 1944.
G. D. SKINNER HEATING AND VENTILATING SYSTEM Filed Feb. 28,
Patented Sept. 26, 1944 NT OFFICE HEATING ANDVENTILATI NG SYSTEM George DonaldSkinner, London, England Application Februar 28, 1942, Serial No. 432,899
H In Great Britain October 13, 1941 4 Claims. (01. 250-43) This invention relates to heating and ventilating systems and more particularly to heating and air conditioning units adapted to be mounted on the fac of a wall or suspended from roof or ceiling members of a building.
Such units although they comprise heating elements, are usable in warm Weather without the heating elements being in operation so as to provide a beneficial circulation of cooling air.
The primary object of the present invention is to provide a convenient unit of this general character which in addition to the normal function of merely circulating the air, heated or not, has incorporated in it means for sterilising the air so circulated from harmful bacteria.
According to the invention this sterilisation of the circulated air is eiTected by subjecting the air in its passage through the unit to the effects of ultra-violet radiation which can conveniently be efiected by means of suitable electric discharge lamps.
The invention may therefore be said to consist in its broadest aspect of an air conditioning unit comprising a casing having inlet and outlet openings for permitting the passage of air through the casing, a fan for circulating the air through the casing, a heating element, and means for generating and radiating ultra-violet rays positioned so that the circulated air is subjected to the effect of the rays.
The invention further comprises the employment of electric discharge lamps as the means for generating the ultra-violet rays and the use of the windings of an electric motor used to drive the fan to control the electric discharge lamps whereby the use of the inductive chokes usually employed for this purpose is eliminated.
In the preferred practical application of the invention a three-phase fan motor is employed each of the three windings of which is used to control an electric discharge lamp. If desired an ozoniser of known construction and operation may be incorporated in the unit.
An embodiment of the invention is shown in the accompanying drawing, wherein Figure 1 is a perspective outside elevation of the improved unit,
Figure 2 is a diagrammatic sectional view thereof, and
Figure 3 is a diagram of the electrical connections.
Referring to the drawing, the numeral l indicates a casing with a front louvred opening 2, behind which is an electric heater 3. Centrally across the interior of the casing are mounted three electric discharge lamps 4 provided with suitable transparent envelopes capable of passinga wave length of 2537 Angstrom units radiation, and at the back of the casing is the circulating fan 5 driven by a three phase motor 6.
The casing I may be mounted on a wall by a surrounding flange 7 integral with the back wall of the casing, and as shown in Figure 1 screening or baille plates 8 may be attached to the side walls of the casing I to assist in directing the flow of discharged air.
The electrical connections for the motor 6 and heating element 3 described above are illustrated by Figure 3 in which 9 indicates the supply mains connected to the three phase motor windings ID. This motor operates as a pilot motor off a single phase circuit. The heater is tapped off from the mains 9 at H likewise an ozoniser, if employed, is tapped oiT as indicated by the dotted lines at l2. The three lamps are connected to leads l3, l4 and I5 and a condenser l6 as shown. Where a three-phase supply is available a standard three phase motor can be used, in which case a lamp would be connected in each phase of the motor windings.
Although the heating element employed is indicated as an electrical heater it is to be understood that a heater of any form may be employed.
As is well known to those skilled in the art, the efllciency of the sterilizing action of such lamps on air-borne bacteria is highest when the lamps ar maintained at about F. It is therefore important, with the present apparatus, to locate the lamp in suitable positions in the heater casing where this temperature will be attained or most nearly approximated. In cases where the lamps are subject to the cooling effects of an air stream and the heating effects from a heating element, screening means will be required to ensure the maintenance of a satisfactory working temperature. For example in the arrangement shown in Figure 2 deflectors or screens are arranged to efiect this screening of the upper and lower lamps while deflectors or screens I6 may be arranged on each side of the central lamp, the deflector on one side protecting the lamp from the effects of the air stream from the fan 5 and that on the other side protecting the lamp from the effects of the heater 3. The upper and lower of the lamps 4 may need to be shielded by screens such as IT.
It will be understood that the utilisation of the fan motor windings as ballasts for the control of the discharge lamps is not dependent upon borne bacteria.
the use of a three-phase main supply, and is merely a question of selecting the type of electric motor to suit the mains supply and the number of discharge lamps needed in a unit.
If desired, an air filter indicated at l8 may be incorporated with the apparatus, consisting, for example, of fabric treated with an oily or adhesive medium arranged over the inlet openings to the casing I, which will be capable of removing not only the larger particles of dirt in the circulated air, but also the larger sizes of air- The filtered air is then subjected to the ultra-violet radiation, which will be capable of destroying the smaller bacteria thatit is not possible to trap by the filter.
It will be appreciated that, by suitable spac I quiet about the lamps ing of the combined heating, ventilating and sterilizing units, the whole of the floor area of a room or building may be efiectively provided with a continuous supply of tempered and sterilized air which, whilst providing any desired degree of heating or cooling to suit the occupation of the people in the room or building, will also greatly minimise the risk of infection and passin the casing is subjected, and screening devices about the lamps to baffle the air and keep it and avoid chilling the lamps below their proper operating temperature.
- '2. An air conditioning unit according to claim 1, wherein the outlet opening from the unit is provided with louvers for directing the air on its disoharge.-
3. An air conditioning unit according to claim l, having a filter in the inlet opening.
'4. An air conditioning unit according to claim 1, having aheating element located withinthe casing adjacent the outlet opening;
GEORGE DONALD SKINNER.-
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US2528969 *||Mar 7, 1945||Nov 7, 1950||Michael Reese Res Foundation||Lamp|
|US2553711 *||Mar 11, 1949||May 22, 1951||Jackson Raymond B||Portable sterilizing apparatus|
|US2564157 *||Jun 12, 1947||Aug 14, 1951||Hrant Eknayan||Electric heating system and method of heating|
|US2638644 *||Oct 25, 1947||May 19, 1953||John R Rauhut||Air-conditioning and humidifying apparatus|
|US2681061 *||Nov 13, 1952||Jun 15, 1954||Louis B Modell||Health lamp|
|US2683798 *||May 9, 1951||Jul 13, 1954||Frederick E Craig||Three-phase fluorescent lighting system|
|US2723616 *||Oct 15, 1951||Nov 15, 1955||American Air Filter Co||Ventilating and heating apparatus|
|US2737695 *||Mar 17, 1952||Mar 13, 1956||Sokolik Edward||Germicidal bed apparatus for bedridden patients|
|US2750536 *||Jan 8, 1951||Jun 12, 1956||Ets Claude Paz & Silva||System for energizing an electric discharge tube|
|US2754554 *||Apr 4, 1952||Jul 17, 1956||John Mills Terence||Germicidal deodorizer|
|US3518046 *||Sep 16, 1968||Jun 30, 1970||Cicirello Daniel J||Method and apparatus for the destruction of airborne microorganisms within a room|
|US3634025 *||Nov 20, 1969||Jan 11, 1972||Landry Alfred||Water sterilizer|
|US3708963 *||Sep 8, 1970||Jan 9, 1973||W Boonstra||Assembly for separating a substantially dust-free part from a space|
|US3744216 *||Aug 7, 1970||Jul 10, 1973||Environmental Technology||Air purifier|
|US4889543 *||Dec 8, 1988||Dec 26, 1989||Burt Jerry D||Air filtering system|
|US6709484||Aug 8, 2001||Mar 23, 2004||Sharper Image Corporation||Electrode self-cleaning mechanism for electro-kinetic air transporter conditioner devices|
|US6713026||Dec 5, 2000||Mar 30, 2004||Sharper Image Corporation||Electro-kinetic air transporter-conditioner|
|US6749667||Oct 21, 2002||Jun 15, 2004||Sharper Image Corporation||Electrode self-cleaning mechanism for electro-kinetic air transporter-conditioner devices|
|US6849107 *||Dec 16, 2002||Feb 1, 2005||Fred Huffman||Air filtration system|
|US6896853||Sep 9, 2003||May 24, 2005||Sharper Image Corporation||Personal electro-kinetic air transporter-conditioner|
|US6908501||Apr 30, 2004||Jun 21, 2005||Sharper Image Corporation||Electrode self-cleaning mechanism for air conditioner devices|
|US6911186||Feb 12, 2002||Jun 28, 2005||Sharper Image Corporation||Electro-kinetic air transporter and conditioner device with enhanced housing configuration and enhanced anti-microorganism capability|
|US6953556||Mar 30, 2004||Oct 11, 2005||Sharper Image Corporation||Air conditioner devices|
|US6972057||Mar 22, 2004||Dec 6, 2005||Sharper Image Corporation||Electrode cleaning for air conditioner devices|
|US6974560||Feb 12, 2002||Dec 13, 2005||Sharper Image Corporation||Electro-kinetic air transporter and conditioner device with enhanced anti-microorganism capability|
|US6984987||Jul 23, 2003||Jan 10, 2006||Sharper Image Corporation||Electro-kinetic air transporter and conditioner devices with enhanced arching detection and suppression features|
|US7056370||Mar 23, 2005||Jun 6, 2006||Sharper Image Corporation||Electrode self-cleaning mechanism for air conditioner devices|
|US7077890||Feb 9, 2004||Jul 18, 2006||Sharper Image Corporation||Electrostatic precipitators with insulated driver electrodes|
|US7097695||Sep 12, 2003||Aug 29, 2006||Sharper Image Corporation||Ion emitting air-conditioning devices with electrode cleaning features|
|US7220295||Apr 12, 2004||May 22, 2007||Sharper Image Corporation||Electrode self-cleaning mechanisms with anti-arc guard for electro-kinetic air transporter-conditioner devices|
|US7285155||Mar 28, 2005||Oct 23, 2007||Taylor Charles E||Air conditioner device with enhanced ion output production features|
|US7291207||Dec 8, 2004||Nov 6, 2007||Sharper Image Corporation||Air treatment apparatus with attachable grill|
|US7311762||Jul 25, 2005||Dec 25, 2007||Sharper Image Corporation||Air conditioner device with a removable driver electrode|
|US7318856||Dec 3, 2004||Jan 15, 2008||Sharper Image Corporation||Air treatment apparatus having an electrode extending along an axis which is substantially perpendicular to an air flow path|
|US7371354||Sep 15, 2003||May 13, 2008||Sharper Image Corporation||Treatment apparatus operable to adjust output based on variations in incoming voltage|
|US7404935||Oct 14, 2003||Jul 29, 2008||Sharper Image Corp||Air treatment apparatus having an electrode cleaning element|
|US7405672||Mar 25, 2004||Jul 29, 2008||Sharper Image Corp.||Air treatment device having a sensor|
|US7517503||Mar 2, 2004||Apr 14, 2009||Sharper Image Acquisition Llc||Electro-kinetic air transporter and conditioner devices including pin-ring electrode configurations with driver electrode|
|US7517504||Mar 8, 2004||Apr 14, 2009||Taylor Charles E||Air transporter-conditioner device with tubular electrode configurations|
|US7517505||Dec 8, 2004||Apr 14, 2009||Sharper Image Acquisition Llc||Electro-kinetic air transporter and conditioner devices with 3/2 configuration having driver electrodes|
|US7638104||Dec 3, 2004||Dec 29, 2009||Sharper Image Acquisition Llc||Air conditioner device including pin-ring electrode configurations with driver electrode|
|US7662348||Jun 10, 2005||Feb 16, 2010||Sharper Image Acquistion LLC||Air conditioner devices|
|US7695690||Feb 12, 2002||Apr 13, 2010||Tessera, Inc.||Air treatment apparatus having multiple downstream electrodes|
|US7724492||Jul 20, 2007||May 25, 2010||Tessera, Inc.||Emitter electrode having a strip shape|
|US7767165||Mar 3, 2005||Aug 3, 2010||Sharper Image Acquisition Llc||Personal electro-kinetic air transporter-conditioner|
|US7767169||Nov 22, 2004||Aug 3, 2010||Sharper Image Acquisition Llc||Electro-kinetic air transporter-conditioner system and method to oxidize volatile organic compounds|
|US7833322||Feb 27, 2007||Nov 16, 2010||Sharper Image Acquisition Llc||Air treatment apparatus having a voltage control device responsive to current sensing|
|US7897118||Dec 8, 2004||Mar 1, 2011||Sharper Image Acquisition Llc||Air conditioner device with removable driver electrodes|
|US7906080||Mar 30, 2007||Mar 15, 2011||Sharper Image Acquisition Llc||Air treatment apparatus having a liquid holder and a bipolar ionization device|
|US7959869||May 9, 2003||Jun 14, 2011||Sharper Image Acquisition Llc||Air treatment apparatus with a circuit operable to sense arcing|
|US7976615||Mar 12, 2010||Jul 12, 2011||Tessera, Inc.||Electro-kinetic air mover with upstream focus electrode surfaces|
|US8043573||Feb 8, 2010||Oct 25, 2011||Tessera, Inc.||Electro-kinetic air transporter with mechanism for emitter electrode travel past cleaning member|
|US8425658||May 20, 2011||Apr 23, 2013||Tessera, Inc.||Electrode cleaning in an electro-kinetic air mover|
|US20020098131 *||Dec 13, 2001||Jul 25, 2002||Sharper Image Corporation||Electro-kinetic air transporter-conditioner device with enhanced cleaning features|
|US20020127156 *||Feb 12, 2002||Sep 12, 2002||Taylor Charles E.||Electro-kinetic air transporter-conditioner devices with enhanced collector electrode|
|US20020134665 *||Feb 12, 2002||Sep 26, 2002||Taylor Charles E.||Electro-kinetic air transporter-conditioner devices with trailing electrode|
|US20020146356 *||Feb 12, 2002||Oct 10, 2002||Sinaiko Robert J.||Dual input and outlet electrostatic air transporter-conditioner|
|US20020155041 *||Feb 12, 2002||Oct 24, 2002||Mckinney Edward C.||Electro-kinetic air transporter-conditioner with non-equidistant collector electrodes|
|US20030165410 *||Mar 5, 2003||Sep 4, 2003||Taylor Charles E.||Personal air transporter-conditioner devices with anti -microorganism capability|
|US20030206839 *||Feb 12, 2002||Nov 6, 2003||Taylor Charles E.||Electro-kinetic air transporter and conditioner device with enhanced anti-microorganism capability|
|US20030206840 *||Feb 12, 2002||Nov 6, 2003||Taylor Charles E.||Electro-kinetic air transporter and conditioner device with enhanced housing configuration and enhanced anti-microorganism capability|
|US20030209420 *||May 9, 2003||Nov 13, 2003||Sharper Image Corporation||Electro-kinetic air transporter and conditioner devices with special detectors and indicators|
|US20030217641 *||Feb 6, 2003||Nov 27, 2003||Palestro Richard P.||Ultraviolet germicidal apparatus and method|
|US20030233935 *||Oct 21, 2002||Dec 25, 2003||Reeves John Paul||Electrode self-cleaning mechanism for electro-kinetic air transporter-conditioner devices|
|US20040191134 *||Mar 30, 2004||Sep 30, 2004||Sharper Image Corporation||Air conditioner devices|
|US20040251124 *||Sep 15, 2003||Dec 16, 2004||Sharper Image Corporation||Electro-kinetic air transporter and conditioner devices with features that compensate for variations in line voltage|
|US20050061344 *||Nov 1, 2004||Mar 24, 2005||Sharper Image Corporation||Ion emitting brush|
|USRE41812||Jan 21, 2005||Oct 12, 2010||Sharper Image Acquisition Llc||Electro-kinetic air transporter-conditioner|
|DE1264722B *||Feb 5, 1963||Mar 28, 1968||Bauknecht Gmbh G||Verfahren zur Herstellung eines wohltuenden und gesundheitsfoerdernden Ionenklimas und Einrichtung zur Durchfuehrung des Verfahrens|
|DE1299388B *||Feb 2, 1965||Jul 17, 1969||Sterling Eng Co Ltd||Elektrischer Wand-Heizluefter|
|U.S. Classification||96/224, 362/248, 126/299.00R, 315/291, 307/149, 250/435, 315/137, 416/95, 55/467, 315/112, 315/289|