|Publication number||USRE30254 E|
|Application number||US 05/884,774|
|Publication date||Apr 8, 1980|
|Filing date||Mar 8, 1978|
|Priority date||Apr 29, 1974|
|Publication number||05884774, 884774, US RE30254 E, US RE30254E, US-E-RE30254, USRE30254 E, USRE30254E|
|Inventors||Max O. H. Rasmussen|
|Original Assignee||Heikki S. Suominen|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (3), Referenced by (81), Classifications (10), Legal Events (1)|
|External Links: USPTO, USPTO Assignment, Espacenet|
The invention relates to a thermal insulating curtain, mainly for use in greenhouses.
The energy crisis which set in at the end of 1973, resulting in heavy rises in prices of fuel oils, has caused considerable economical problems, particularly to market gardens, with regard to the heating of greenhouses. Hitherto it has not been possible in an economically defensible manner to insulate greenhouses, the walls and roof of which normally consist of a single layer of glass, as previously proposed solutions of the problem have either been expensive structures or solutions demanding hard work by installation and removal of the insulating materials. It has furthermore been connected with great inconvenience to store the insulating materials when not in use.
The object of the present invention is to provide a thermal insulating curtain, which is cheap in production, easy to remove and which only occupies very little space in a packed condition for storage.
This is achieved by the thermal insulating curtain according to the invention characterized by pieces of tube foil connected to a whole along diametrically opposite axially extending surface parts.
In its installed state such a curtain forms two parallel surfaces with essentially still or dead air between them, as the connected parts of the tube foils prevent upwards- and downwards flowing air currents, so that the curtain gets a marked thermal insulating effect.
The curtain according to the invention will work as a closed Venetian blind with the parts of the pieces of tube foil connected to a whole as lamellas and the curtain similar to the Venetian blind possesses the advantage that it takes up very little space in its folded up condition. The curtain according to the invention can thus be mounted stationary in a greenhouse and be drawn or pulled up as required by means of a cord drive.
In a preferred embodiment of the curtain according to the invention at least part of the circumference of the pieces of tube foil is impermeable and/or reflective as to rays.
In addition to the curtain being in itself thermal insulating there also is achieved that the parts of the circumference of the pieces of tube foil being impermeable and/or reflective as to rays will further increase the insulating power, as the radiating heat is hindered by or reflected from the curtain.
According to the invention the pieces of tube foil may be of translucent material and can be provided with one or several axially extending coatings which are impermeable and/or reflecting relative to rays. Hereby there is achieved that the curtain can be manufactured from common plastics as tube foil which in a suitable manner can be provided with one or several coatings.
The coatings can be limited to that part of the circumference of the pieces of tube foil which is connected with the adjoining pieces of foil, whereby a true Venetian blind effect is achieved, as the surfaces connected to a whole and with them the coatings can be given different inclinations.
In a preferred embodiment of the invention the coatings on each piece of tube foil extend from the parts connected with the adjoining pieces of tube foil to near the natural fold of the piece of tube foil. Hereby there is achieved an almost unbroken surface that is impermeable and/or reflective as to rays material at the same time as the folding up of the curtain is not prevented since the fold of the pieces of tube foil is held free. In this embodiment it is suitable that there are only coatings on one side of the curtain, since that side in this case faces the heated room.
The invention will now be described in detail below by means of some examples of embodiments with reference to the drawings as follows:
FIG. 1 illustrates a perspective view of a thermal insulating curtain according to the invention,
FIG. 2 is another embodiment of the curtain according to the invention,
FIG. 3 shows the curtain in FIG. 1 or 2 of folded up condition and
FIG. 4 shows the curtain wound up on a stick or on a roller.
The thermal insulating curtain 10 in FIG. 1 consists of pieces of tube foil 11. These pieces of tube foil may be manufactured from plastic tube foil, which is available in flat lengths. By pasting the pieces together in a certain width in the middle of the length there is obtained a curtain, which in a stretched condition has transverse connection to whole parts 12 and in which the folds 13 of the tube foil length are situated in the middle between the connected parts 12. The curtain at the top thereof is provided with an upper or carrying fillet 14 and at foot or base thereof is provided with an lower fillet 15, and the width of these fillets corresponds to the width of the connection to whole parts 12.
In this embodiment of the curtain according to the invention the pieces of tube foil 11 are impermeable and/or reflective as to rays by way of coatings 16, which are limited to the parts connected with the adjoining pieces of foil. If the pieces of tube foil are transparent or translucent, the curtain gets the character of a Venetian blind, in which the coatings 16 form the lamellas. The inclination of the coatings may be varied by means of the carrying fillet 14 being turned about its longitudinal axis.
The front 17 and the back 18 of the curtan thus form or define parallel surfaces with essentially still or dead air between them, since circulation of the air in vertical direction is prevented by the connection to whole parts 12 or the coatings 16.
In FIG. 2 there is shown another embodiment 20 of the curtain according to the invention. This consists of pieces of tube foil 21 with connection to whole parts 22 and with the natural fold 23 of the tube foils located in the middle between the connected parts. The curtain has an upper fillet 24 and a lower filled 25, which also here are of essentially the same width as the connected parts 22. The pieces of tube foil here have coatings 26 and 29 extending from the connected parts 22 to near the fold 23 of the tube foils. Hereby there is achieved an almost unbroken surface of heat reflecting material, so that the curtain besides the thermal insulating hollow space between the front 27 and the back 28 also repels the heat rays coming from inside the room. This assures that the curtain in itself will not be essentially heated, whereby condensation of water vapor in the space between the curtain 20 and the glass wall with resulting formation of ice, if any, on the panes is avoided to a great extent. It is only necessary to provide the front 27 with coatings, i.e., the side facing the heated room.
One of the advantages of the curtain according to the invention is that it does not take up much space in removed or folded up state. In FIG. 3 there is illustrated how the curtain similar to a Venetian blind is folded up along the folds 13 of the pieces of tube foil 11. Between the upper and lower fillets 14 and 15 there is located an unillustrated cord drive extending through holes in the fillets and the pieces of tube foil.
It is also possible to pull up the curtain in a manner similar to a common blind. As shown in FIG. 4, one can attach the curtain to a round stick or roller 44 instead of to the upper fillet 14, so that the curtain on turning about the round stick 44 is wound up on same.
The invention is not limited to curtains with coatings such as shown in the drawing. The curtain may e.g., be manufactured from black tube foil, by means of which the whole curtain will be impermeable to rays.
The curtain according to the invention may naturally also be used in other places than in greenhouses. The curtain 10 in FIG. 1 if the pieces of tube foil are made from clear plastics can be used as a thermal insulating curtain in front of windows in other localities, just as the curtain can also be used with vertically oriented pieces of tube foil 11, as e.g., the embodiment in FIGS. 1 to 3, the upper and lower fillets 14, 15 may be moved in rails or by means of cords or rods passing through the pieces of tube foil.
In this connection it should also be mentioned that the curtains must not necessarily be located vertically, they may just as well be located obliquely along the roof of a greenhouse or even horizontally as an insulating ceiling.
It is, of course, to be understood that the present invention is by no means limited to the specific showing in the drawing, but also comprises any modifications within the scope of the appended claims.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US1827718 *||Jun 21, 1928||Oct 13, 1931||Whitmanis Mfg Company Inc||Ventilated window and porch shade|
|US1937342 *||Aug 30, 1928||Nov 28, 1933||Higbie Henry Harold||Material for controlling illumination|
|US2874612 *||Mar 9, 1956||Feb 24, 1959||Luboshez Sergius N Ferris||Thermal insulator|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US5094705 *||Feb 14, 1990||Mar 10, 1992||Hunter Douglas Inc.||Method and apparatus for producing continuous band expandable and collapsible shielding material|
|US5097884 *||Nov 6, 1989||Mar 24, 1992||Hunter Douglas Inc.||Roman shade|
|US5228936 *||Aug 14, 1992||Jul 20, 1993||Hunter Douglas Inc.||Process for fabricating honeycomb material|
|US5313999 *||May 17, 1991||May 24, 1994||Hunter Douglas Inc.||Fabric light control window covering|
|US5320154 *||Jun 20, 1991||Jun 14, 1994||Hunter Douglas Inc.||Method and apparatus for mounting a retractable window covering|
|US5339882 *||Sep 28, 1992||Aug 23, 1994||Verosol Usa Inc.||Venetian-type window covering|
|US5394922 *||Apr 13, 1992||Mar 7, 1995||Hunter Douglas Inc.||Fabric light control window covering|
|US5405483 *||Jan 27, 1993||Apr 11, 1995||Hunter Douglas, Inc.||Apparatus for forming pleated material|
|US5419385 *||Jul 29, 1993||May 30, 1995||Hunter Douglas, Inc.||Double sheet light control window covering with unique vanes|
|US5425408 *||Oct 7, 1994||Jun 20, 1995||Hunter Douglas Inc.||Roman shade|
|US5456304 *||Jul 29, 1992||Oct 10, 1995||Hunter Douglas Inc.||Apparatus for mounting a retractable covering for an architectural opening|
|US5558925 *||Feb 13, 1995||Sep 24, 1996||Cellular Designs Unlimited, Inc.||Window treatment article|
|US5620035 *||Aug 22, 1994||Apr 15, 1997||Judkins; Ren||Material utilizing flexible strands|
|US5638880 *||Nov 9, 1993||Jun 17, 1997||Hunter Douglas Inc.||Fabric light control window covering with rigid vanes|
|US5692550 *||Aug 19, 1996||Dec 2, 1997||Cooper Industries, Inc.||Cellular shade material|
|US5701940 *||Aug 1, 1995||Dec 30, 1997||Cooper Industries, Inc.||Cellular shade|
|US5714034 *||Mar 12, 1993||Feb 3, 1998||Hunter Douglas Inc.||Apparatus for fabricating honeycomb material|
|US5718799 *||Jun 7, 1995||Feb 17, 1998||Hunter Douglas Inc.||Fabric light control window covering|
|US5746266 *||Feb 13, 1997||May 5, 1998||Hunter Douglas Inc.||Roll up roman shade|
|US5834090 *||Apr 24, 1996||Nov 10, 1998||Teh Yor Industrial Co., Ltd.||Cellular structure|
|US5845690 *||Feb 18, 1997||Dec 8, 1998||Hunter Douglas Inc.||Fabric light control window covering with rigid vanes and support cords|
|US5855235 *||Feb 18, 1994||Jan 5, 1999||Hunter Douglas Inc.||Retractable window covering|
|US5888639 *||May 23, 1997||Mar 30, 1999||Newell Operating Co||Cellular panel and method and apparatus for making the same|
|US6045890||Jun 23, 1997||Apr 4, 2000||Newell Operating Company||Cellular panel and method and apparatus for making the same|
|US6112797||Feb 9, 1998||Sep 5, 2000||Hunter Douglas Inc.||Apparatus for fabricating a light control window covering|
|US6206075||Jan 25, 1999||Mar 27, 2001||Comfortex Window Fashions||Cellular window covering having seamless cells and method for making same|
|US6284347||Nov 11, 1999||Sep 4, 2001||Newell Operating Company||Cellular panel and method and apparatus for making the same|
|US6416842||Jan 20, 2000||Jul 9, 2002||Hunter Douglas Inc.||Dual-laminate honeycomb material|
|US6442903 *||Nov 13, 2000||Sep 3, 2002||Thomas H. Hebert||Inflatable insulative covering|
|US6461464||May 9, 2000||Oct 8, 2002||Hunter Douglas Inc.||Method of manufacturing laminate honeycomb material|
|US6502268 *||Apr 18, 2001||Jan 7, 2003||Rite-Hite Holding Corporation||Weather shield for below a dock leveler|
|US6572725||Dec 19, 2001||Jun 3, 2003||Hunter Douglas Inc.||Method for fabricating honeycomb material|
|US6688369||Jul 25, 2001||Feb 10, 2004||Hunter Douglas Inc.||Fabric light control window covering|
|US6823923||Mar 20, 2002||Nov 30, 2004||Hunter Douglas Inc.||Light-control window covering and method and apparatus for its manufacture|
|US6908661||Jul 23, 2001||Jun 21, 2005||Newell Operating Company||Cellular panel and method and apparatus for making the same|
|US6982020||Jun 12, 2002||Jan 3, 2006||Hunter Douglas Inc.||Method of making a dual-laminate honeycomb panel|
|US7059378||Oct 27, 2003||Jun 13, 2006||Hunter Douglas Inc.||Fabric light control window covering|
|US7146673||Nov 8, 2005||Dec 12, 2006||Rite-Hite Holding Corporation||Weather shield for underneath a dock leveler|
|US7334281||Nov 8, 2006||Feb 26, 2008||Rite-Hite Holding Corporation||Weather shield for underneath a dock leveler|
|US7584517||Nov 8, 2006||Sep 8, 2009||Rite-Hite Holding Corporation||Weather shield for underneath a dock leveler|
|US7877831||Oct 31, 2006||Feb 1, 2011||Rite-Hite Holding Corporation||Weather shield for underneath a dock leveler|
|US8291660 *||Oct 19, 2010||Oct 23, 2012||Mccary John M||Radiant insulating, venting and moisture control assembly|
|US8568859||Aug 17, 2010||Oct 29, 2013||Teh Yor, Co., Ltd.||Double-cell structure for window shade and manufacture method thereof|
|US8967224||May 14, 2010||Mar 3, 2015||Newell Window Furnishings, Inc.||Shade construction|
|US20020160148 *||Jun 12, 2002||Oct 31, 2002||Swiszcz Paul G.||Method of making a dual-laminate honeycomb panel|
|US20040007310 *||Jul 9, 2002||Jan 15, 2004||Ching Feng Blinds Ind. Co., Ltd||Automatic shaping method for production of hive-like venetian blinds|
|US20040045469 *||Mar 21, 2003||Mar 11, 2004||Herhold Karen S.||Pearlescent honeycomb material and method for fabricating same|
|US20040149396 *||Jan 7, 2004||Aug 5, 2004||Hunter Douglas Inc.||Fabric light control window covering|
|US20050147800 *||Feb 14, 2005||Jul 7, 2005||Hunter Douglas Inc.||Pearlescent honeycomb material and method for fabricating same|
|US20060180278 *||Apr 13, 2006||Aug 17, 2006||Hunter Douglas Inc.||Fabric light control window covering|
|US20080128099 *||Dec 5, 2006||Jun 5, 2008||Amrani Aviv Ltd.||Fabric for use as a lining material|
|US20100178449 *||Jan 14, 2009||Jul 15, 2010||Yi Hu||Hanging type energy saving window film|
|US20100288446 *||May 14, 2010||Nov 18, 2010||Newell Window Furnishings, Inc.||Shade construction|
|US20120090266 *||Oct 19, 2010||Apr 19, 2012||Mccary John M||Radiant insulating, venting and moisture control assembly|
|US20140166217 *||Nov 5, 2013||Jun 19, 2014||Ching Feng Home Fashions Co., Ltd.||Combination of roman shade and honeycomb shade|
|US20160060955 *||Aug 25, 2015||Mar 3, 2016||Yin-An Hsieh||Retractable light-diffusing module and light-diffusing structure thereof|
|USD456196||Sep 21, 2001||Apr 30, 2002||Hunter Douglas Inc.||Fabric light control window covering|
|USD691391||May 4, 2011||Oct 15, 2013||Hunter Douglas Inc.||Fabric panel|
|USD691392||May 4, 2011||Oct 15, 2013||Hunter Douglas Inc.||Fabric panel|
|USD691393||May 4, 2011||Oct 15, 2013||Hunter Douglas Inc.||Fabric panel|
|USD691394||May 4, 2011||Oct 15, 2013||Hunter Douglas Inc.||Fabric panel|
|USD691395||May 4, 2011||Oct 15, 2013||Hunter Douglas Inc.||Fabric panel|
|USD691396||May 4, 2011||Oct 15, 2013||Hunter Douglas Inc.||Fabric panel|
|USD691486||May 4, 2011||Oct 15, 2013||Hunter Douglas Inc.||Fabric panel for coverings for architectural openings|
|USD691487||May 4, 2011||Oct 15, 2013||Hunter Douglas Inc.||Fabric panel|
|USD740588||May 2, 2014||Oct 13, 2015||Hunter Douglas Inc.||Covering for an architectural opening having a vane with a pattern|
|USD750395||May 2, 2014||Mar 1, 2016||Hunter Douglas Inc.||Covering for an architectural opening having a vane with a pattern|
|USD751319||May 2, 2014||Mar 15, 2016||Hunter Douglas Inc.||Covering for an architectural opening having a sheet with a pattern|
|USRE33623 *||Aug 11, 1989||Jun 25, 1991||Method of making honeycomb structure with joined single pleat material|
|EP0220924A2 *||Oct 21, 1986||May 6, 1987||Hunter Douglas Industries B.V.||Honeycomb structure with a Z-folded material and method of making same|
|EP0220924A3 *||Oct 21, 1986||Jul 6, 1988||Hunter Douglas Industries B.V.||Honeycomb structure with a z-folded material and method of making same|
|EP0222534A2 *||Oct 21, 1986||May 20, 1987||Hunter Douglas Industries B.V.||Honeycomb structure with band joined folded material and method of making same|
|EP0222534A3 *||Oct 21, 1986||Jul 13, 1988||Hunter Douglas Industries B.V.||Honeycomb structure with band joined folded material and method of making same|
|EP0227247A2 *||Oct 21, 1986||Jul 1, 1987||Hunter Douglas Industries B.V.||Method of making a honeycomb structure from joined single pleat material|
|EP0227247A3 *||Oct 21, 1986||Jul 13, 1988||Hunter Douglas Industries B.V.||Honeycomb structure from joined single pleat material and method of making same|
|EP0230719A2 *||Oct 29, 1986||Aug 5, 1987||Hunter Douglas Industries B.V.||Expandable honeycomb structure and a method for its manufacture|
|EP0230719A3 *||Oct 29, 1986||Jul 20, 1988||Hunter Douglas Industries B.V.||Expandable honeycomb structure and a method for its manufacture|
|EP0315223A1 *||May 22, 1984||May 10, 1989||Thermocell, Ltd.||Expandable and contractable panel|
|EP2339910A1 *||Sep 16, 2009||Jul 6, 2011||Asko Myntti||Greenhouse|
|EP2339910A4 *||Sep 16, 2009||Oct 9, 2013||Asko Myntti||Greenhouse|
|WO2010034882A1 *||Sep 16, 2009||Apr 1, 2010||Asko Myntti||Greenhouse|
|U.S. Classification||160/84.02, 160/166.1, 428/12, 428/906, 160/120, 428/188|
|Cooperative Classification||A01G9/222, Y10T428/24744|
|Apr 15, 1987||AS||Assignment|
Owner name: HUNTER DOUGLAS INTERNATIONAL N.V., KAYA FLAMBOYAN
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SUBJANEN, PENTTI O., ATTORNEY IN FACT FOR MARJA I. SUBMINEN, DEC D;REEL/FRAME:004700/0642
Effective date: 19870406