US3789904A - Double curtain device - Google Patents
Double curtain device Download PDFInfo
- Publication number
- US3789904A US3789904A US00323363A US3789904DA US3789904A US 3789904 A US3789904 A US 3789904A US 00323363 A US00323363 A US 00323363A US 3789904D A US3789904D A US 3789904DA US 3789904 A US3789904 A US 3789904A
- Authority
- US
- United States
- Prior art keywords
- winding shaft
- curtain
- diameter tube
- chain
- fitting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47H—FURNISHINGS FOR WINDOWS OR DOORS
- A47H23/00—Curtains; Draperies
- A47H23/02—Shapes of curtains; Selection of particular materials for curtains
- A47H23/04—Shapes of curtains
- A47H23/06—Systems consisting of two or more co-operating curtains with transparent or perforated parts behind each other
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47H—FURNISHINGS FOR WINDOWS OR DOORS
- A47H1/00—Curtain suspension devices
Definitions
- ABSTRACT A double curtain device wherein a curtain (5) provided with punched patterns (29) is connected at the respective ends with a main winding shaft (2) and auxiliary winding shaft (3) both rotatably provided between right and left supporting cases (1), a balance weight shaft (8) is inserted and held in a folded part (7) of the curatin (5) so as to tension the curtain (5), a joint (9) is slidably fitted to the main winding shaft (2) so that the length of the main winding shaft (2) may be adjustable, said auxiliary winding shaft (3) is formed by fitting a small diameter tube (15) provided with an axial groove (14) cut on one side into a large diameter tube (16) provided also with an axial groove (14) cut on one side, many annular concave grooves (17) and annular convex parts (18) fitting them are formed respectively in the fitting parts of the small diameter tube (15) and large diameter tube (16) so that the length of the auxiliary winding shaft may be adjustable and a winding chain (25) is hung on a chain wheel (24) secured to one end of the
- PAIEMEB FEB 5 I974 SHEET 3 BF 3 DOUBLE CURTAIN DEVICE This invention is a double curtain device wherein proper punched patterns for ventilation are formed in a curtain made to be wound up in both end parts with winding shafts so as to be of a double formation in the suspended part.
- FIG. 1 is a vertically sectioned elevation with a part omitted:
- FIG. 2 is a vertically sectioned side view of the same
- FIG. 3 is a vertically sectioned side view showing a main winding shaft
- FIG. 4 is a perspective view showing a joint
- FIG. 5 is a partly sectioned perspective view showing a fitting part of anauxiliary winding shaft
- FIG. 6 is a partly sectioned elevation showing a supporting case
- FIG. 7 is a bottom view of FIG. 6.
- a main winding shaft (2) and auxiliary winding shaft (3) are rotatably horizontally set in supporting cases (1), fitting concave grooves (4) extended in the axial direction are properly made on the peripheral surface of the main winding shaft (2), a curtain (5) is fitted to the main winding shaft (2) by inserting and fitting a wire (6) on which the curtain (5) is wound at one end into the fitting concave groove (4) and is fitted at the other end to the auxiliary winding shaft (5) and a balance weight shaft (8) provided with a flange at each end is inserted into a folded part (7) of the curtain (5) wound at both ends so as to tension the curtain (5).
- the above mentioned main winding shaft (2) is divided into two parts in the middle in the axial direction and both parts are connected with each other through a joint (9) for adjusting the length.
- a pair of sliders (12) provided with a bent piece (10) on each side, having an engaging piece (11) in one end part and slidable within the main winding shaft (2) are connected with each other by leaving a proper clearance between them through adjusting set screws (13) so that, when the clearance between both sliders (12) is expanded by adjustingthe adjusting set screws (13), the bent pieces (10) may be pressed against the inner peripheral surface of the main winding shaft (2) to connect and fix the divided parts of the main winding shaft (2) with each other.
- the auxiliary winding shaft (3) is formed by fitting a small diameter tube provided with an axial groove (14) cut on one side into a large diameter tube (16) provided also with an axial groove (14) cut on one side, annular concave grooves (17) are provided at proper intervals on the outside peripheral surface of the fitting part of the small diameter tube (15), annular convex parts (18) fitting the above mentioned annular concave grooves (17) are provided to project on the inside peripheral surface of the fitting part of the large diameter tube (16) and the annular concave grooves (17) are properly fitted to the annular convex parts (18) by a spring action through the above mentioned cut axial grooves (14) to freely adjust the length.
- an adjusting rod (19) connected with the flange is adjustably inserted and fitted in the balance weight shaft.
- the lengths of the main winding shaft (2), auxiliary winding shaft (3) and balance weight shaft (8) are made adjustable in response to the fitting position of the curtain (5).
- a winding rope (21) is hung on the projecting end of the main winding shaft (2) through a rope pulley (20), a pair of engaging pawls (22) are swingably provided closely to the winding rope 21).
- Said engaging pawl (22) is formed arcuately and has engaging teeth (23) in the free end part to engage the winding rope 21) in any position so that, at the time of winding up the winding rope (21), the engaging pawl may swing downward due to its own weight to disengage the rope but normally the engaging teeth (23) may bite into the winding rope (21) and may engage and fix the rope by holding it with one side of the supporting case (1).
- a winding chain (25) is hung on the projecting end of the auxiliary winding shaft (3) through a chain wheel (24) in the same manner as is mentioned above and engaging holes (26) are made as opposed to the chain on the bottom surface of the supporting case (1) so that the winding chain (25 that is, the auxiliary winding shaft (3) may be engaged in any position.
- each of the above mentioned engaging holes (26) has an engaging groove (27) directed inward so that a connecting neck part (28) of the winding chain (25) may engage the groove (27).
- Punched patterns (29) are formed in the curtain (5) so as to be overlapped to form through hole parts by the overlapping state of the curtain (5).
- the curtain (5) wound on the main winding shaft (2) is properly wound up through the winding rope (21) so that the suspended length of the curtain may coincide with the height of the window frame (not illustrated).
- the auxiliary winding shaft (3) is rotated through the winding chain (25) for the slight adjustment of the punched patterns. That is to say, when the suspended length of the curtain (5) varies unfavorably if the punched patterns (29) are adjusted only by the winding of the'main winding shaft (2), the auxiliary winding shaft (3) is adjusted and rotated to adjust the suspended length together with the patterns. Needless to say, it is possible as mentioned above to adjust the lengths of the main winding shaft (2), auxiliary winding shaft (3) and balance weight shaft (8) in response to the width of the curtain (5) or fitting window frame.
- a curtain (5) provided with punched patterns (29) is connected at the respective ends with a main winding shaft (2) and auxiliary winding shaft (3) both rotatably provided between right and left supporting cases (1), a balance weight shaft (8) is inserted and held in a folded part (7) of the curtain (5) so as to tension the curtain (5), a joint (9) is slidably fitted to the main winding shaft (2) so that the length of the main winding shaft (2) may be adjustable, said auxiliary winding shaft (3) is fonned by fitting a small diameter tube (15 provided with an axial-groove (14) cut on one side into a large diameter tube (16) provided also with an axial groove (14) cut on one side, many annular concave grooves (17) and annular convex parts (18) fitting them are formed respectively in the fitting parts of the small diameter tube (15) and large diameter tube (16) so that the length of the auxiliary winding shaft may be adjustable, a winding chain (25) is hung on a chain wheel (24) secured to one end
- a double curtain device wherein a curtain provided with punched patterns is connected at the respective ends with a main winding shaft and auxiliary winding shaft both rotatably provided between right and left supporting cases, a balance weight shaft is inserted and held in a folded part of the curtain so as to tension the curtain, a joint is slidably fitted to the main winding shaft (2) so that the length of the main winding shaft may be adjustable, said auxiliary winding shaft is formed by fitting a small diameter tube provided with an axial groove cut on one side into a large diameter tube provided also with an axial groove cut on one side, many annular concave grooves and annular convex parts fitting them are formed respectively in the fitting parts of the small diameter tube and large diameter tube so that the length of the auxiliary winding shaft may be adjustable, a winding chain is hung on a chain wheel secured to one end of the auxiliary winding shaft and engaging holes for said winding chain are made as opposed to the chain on the lower surface of the supporting case.
Landscapes
- Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
- Curtains And Furnishings For Windows Or Doors (AREA)
Abstract
A double curtain device wherein a curtain (5) provided with punched patterns (29) is connected at the respective ends with a main winding shaft (2) and auxiliary winding shaft (3) both rotatably provided between right and left supporting cases (1), a balance weight shaft (8) is inserted and held in a folded part (7) of the curatin (5) so as to tension the curtain (5), a joint (9) is slidably fitted to the main winding shaft (2) so that the length of the main winding shaft (2) may be adjustable, said auxiliary winding shaft (3) is formed by fitting a small diameter tube (15) provided with an axial groove (14) cut on one side into a large diameter tube (16) provided also with an axial groove (14) cut on one side, many annular concave grooves (17) and annular convex parts (18) fitting them are formed respectively in the fitting parts of the small diameter tube (15) and large diameter tube (16) so that the length of the auxiliary winding shaft may be adjustable and a winding chain (25) is hung on a chain wheel (24) secured to one end of the auxiliary winding shaft (3) and engaging holes (26) for said winding chain (25) are made as opposed to the chain (25) on the lower surface of the supporting case (1).
Description
United States Patent [191 Takazawa [451 Feb. 5, 1974 DOUBLE CURTAIN DEVICE [76] Inventor: letsugu Takazawa, Bancho Habitation 901, 3, Sanbancho Chiyoda-ku, Japan 22 Filed: Jan. 15,1973
21 Appl. No.: 323,363
[30] Foreign Application Priority Data Apr. 24, 1972 Japan 47/47543 [52] US. Cl 160/120, 160/237, 160/250, 160/263 [51] Int. Cl E06b 9/08, E06b 9/20 [58] Field of Search..... 160/86, 120, 237, 250, 263, 160/323, 324, 325, 326, 85
Primary ExaminerMervin Stein Assistant Examiner-Philip C. Kannan Attorney, Agent, or Firm-John C. Holman et al.
[ ABSTRACT A double curtain device wherein a curtain (5) provided with punched patterns (29) is connected at the respective ends with a main winding shaft (2) and auxiliary winding shaft (3) both rotatably provided between right and left supporting cases (1), a balance weight shaft (8) is inserted and held in a folded part (7) of the curatin (5) so as to tension the curtain (5), a joint (9) is slidably fitted to the main winding shaft (2) so that the length of the main winding shaft (2) may be adjustable, said auxiliary winding shaft (3) is formed by fitting a small diameter tube (15) provided with an axial groove (14) cut on one side into a large diameter tube (16) provided also with an axial groove (14) cut on one side, many annular concave grooves (17) and annular convex parts (18) fitting them are formed respectively in the fitting parts of the small diameter tube (15) and large diameter tube (16) so that the length of the auxiliary winding shaft may be adjustable and a winding chain (25) is hung on a chain wheel (24) secured to one end of the auxiliary winding shaft (3) and engaging holes (26) for said winding chain (25) are made as opposed to the chain (25 on the lower surface of the supporting case (1) 1 Claim, 7 Drawing Figures if ,llJHL-IHHHHMLUHI 3F :4 3 f5 1'? 1'7 1 l i l l i I] 29 i i i t PAIENIEDFEB M I v 3.789.904
SHEET 1 BF 3 FIG.I
PAIENIEU FEB 5 I974 SHEET 2 BF 3 FIG.3
FIG.2
FIG.4
PAIEMEB FEB 5 I974 SHEET 3 BF 3 DOUBLE CURTAIN DEVICE This invention is a double curtain device wherein proper punched patterns for ventilation are formed in a curtain made to be wound up in both end parts with winding shafts so as to be of a double formation in the suspended part.
An embodiment of the present invention shall be explained in detail with reference to the drawings in which:
FIG. 1 is a vertically sectioned elevation with a part omitted:
FIG. 2 is a vertically sectioned side view of the same;
FIG. 3 is a vertically sectioned side view showing a main winding shaft;
FIG. 4 is a perspective view showing a joint;
FIG. 5 is a partly sectioned perspective view showing a fitting part of anauxiliary winding shaft;
FIG. 6 is a partly sectioned elevation showing a supporting case;
FIG. 7 is a bottom view of FIG. 6.
As shown in FIGS. 1 and 2, a main winding shaft (2) and auxiliary winding shaft (3) are rotatably horizontally set in supporting cases (1), fitting concave grooves (4) extended in the axial direction are properly made on the peripheral surface of the main winding shaft (2), a curtain (5) is fitted to the main winding shaft (2) by inserting and fitting a wire (6) on which the curtain (5) is wound at one end into the fitting concave groove (4) and is fitted at the other end to the auxiliary winding shaft (5) and a balance weight shaft (8) provided with a flange at each end is inserted into a folded part (7) of the curtain (5) wound at both ends so as to tension the curtain (5).
The above mentioned main winding shaft (2) is divided into two parts in the middle in the axial direction and both parts are connected with each other through a joint (9) for adjusting the length. As shown in FIGS. 2 and 4, in said joint (9), a pair of sliders (12) provided with a bent piece (10) on each side, having an engaging piece (11) in one end part and slidable within the main winding shaft (2) are connected with each other by leaving a proper clearance between them through adjusting set screws (13) so that, when the clearance between both sliders (12) is expanded by adjustingthe adjusting set screws (13), the bent pieces (10) may be pressed against the inner peripheral surface of the main winding shaft (2) to connect and fix the divided parts of the main winding shaft (2) with each other.
As shown in FIGS. (1) and (5), the auxiliary winding shaft (3) is formed by fitting a small diameter tube provided with an axial groove (14) cut on one side into a large diameter tube (16) provided also with an axial groove (14) cut on one side, annular concave grooves (17) are provided at proper intervals on the outside peripheral surface of the fitting part of the small diameter tube (15), annular convex parts (18) fitting the above mentioned annular concave grooves (17) are provided to project on the inside peripheral surface of the fitting part of the large diameter tube (16) and the annular concave grooves (17) are properly fitted to the annular convex parts (18) by a spring action through the above mentioned cut axial grooves (14) to freely adjust the length.
Further, as shown in FIG. 1, an adjusting rod (19) connected with the flange is adjustably inserted and fitted in the balance weight shaft. As in the above, the lengths of the main winding shaft (2), auxiliary winding shaft (3) and balance weight shaft (8) are made adjustable in response to the fitting position of the curtain (5). Next, as shown in FIGS. 1 and 6, within one supporting case (1) supporting the main winding shaft (2), a winding rope (21) is hung on the projecting end of the main winding shaft (2) through a rope pulley (20), a pair of engaging pawls (22) are swingably provided closely to the winding rope 21). Said engaging pawl (22) is formed arcuately and has engaging teeth (23) in the free end part to engage the winding rope 21) in any position so that, at the time of winding up the winding rope (21), the engaging pawl may swing downward due to its own weight to disengage the rope but normally the engaging teeth (23) may bite into the winding rope (21) and may engage and fix the rope by holding it with one side of the supporting case (1). On the other hand, a winding chain (25) is hung on the projecting end of the auxiliary winding shaft (3) through a chain wheel (24) in the same manner as is mentioned above and engaging holes (26) are made as opposed to the chain on the bottom surface of the supporting case (1) so that the winding chain (25 that is, the auxiliary winding shaft (3) may be engaged in any position.
As shown in FIG. 7, each of the above mentioned engaging holes (26) has an engaging groove (27) directed inward so that a connecting neck part (28) of the winding chain (25) may engage the groove (27).
Punched patterns (29) are formed in the curtain (5) so as to be overlapped to form through hole parts by the overlapping state of the curtain (5).
Now the operation of the present invention shall be explained. The curtain (5) wound on the main winding shaft (2) is properly wound up through the winding rope (21) so that the suspended length of the curtain may coincide with the height of the window frame (not illustrated).
In the case of changing the ventilating and lighting state by making the punched patterns (29) of the curtain (5) coincide with each other, the auxiliary winding shaft (3) is rotated through the winding chain (25) for the slight adjustment of the punched patterns. That is to say, when the suspended length of the curtain (5) varies unfavorably if the punched patterns (29) are adjusted only by the winding of the'main winding shaft (2), the auxiliary winding shaft (3) is adjusted and rotated to adjust the suspended length together with the patterns. Needless to say, it is possible as mentioned above to adjust the lengths of the main winding shaft (2), auxiliary winding shaft (3) and balance weight shaft (8) in response to the width of the curtain (5) or fitting window frame.
In short, in the present invention, a curtain (5) provided with punched patterns (29) is connected at the respective ends with a main winding shaft (2) and auxiliary winding shaft (3) both rotatably provided between right and left supporting cases (1), a balance weight shaft (8) is inserted and held in a folded part (7) of the curtain (5) so as to tension the curtain (5), a joint (9) is slidably fitted to the main winding shaft (2) so that the length of the main winding shaft (2) may be adjustable, said auxiliary winding shaft (3) is fonned by fitting a small diameter tube (15 provided with an axial-groove (14) cut on one side into a large diameter tube (16) provided also with an axial groove (14) cut on one side, many annular concave grooves (17) and annular convex parts (18) fitting them are formed respectively in the fitting parts of the small diameter tube (15) and large diameter tube (16) so that the length of the auxiliary winding shaft may be adjustable, a winding chain (25) is hung on a chain wheel (24) secured to one end of the auxiliary winding shaft (3) and engaging holes (26) for said winding chain (25) are made as opposed to the chain (25) on the lower surface of the supporting case (1). Therefore, it is simply possible to adjust the lengths of the main winding shaft (2) and auxiliary winding shaft (3) in response to the size of the curtain or window frame, the fitting operation on the spot is easy and the punched patterns of the curtain (5) can be very favorably adjusted by operating the auxiliary winding shaft (3) and without changing the length of the entire curtain (5).
What is claimed is: 1. A double curtain device wherein a curtain provided with punched patterns is connected at the respective ends with a main winding shaft and auxiliary winding shaft both rotatably provided between right and left supporting cases, a balance weight shaft is inserted and held in a folded part of the curtain so as to tension the curtain, a joint is slidably fitted to the main winding shaft (2) so that the length of the main winding shaft may be adjustable, said auxiliary winding shaft is formed by fitting a small diameter tube provided with an axial groove cut on one side into a large diameter tube provided also with an axial groove cut on one side, many annular concave grooves and annular convex parts fitting them are formed respectively in the fitting parts of the small diameter tube and large diameter tube so that the length of the auxiliary winding shaft may be adjustable, a winding chain is hung on a chain wheel secured to one end of the auxiliary winding shaft and engaging holes for said winding chain are made as opposed to the chain on the lower surface of the supporting case.
Claims (1)
1. A double curtain device wherein a curtain provided with punched patterns is connected at the respective ends with a main winding shaft and auxiliary winding shaft both rotatably provided between right and left supporting cases, a balance weight shaft is inserted and held in a folded part of the curtain so as to tension the curtain, a joint is slidably fitted to the main winding shaft (2) so that the length of the main winding shaft may be adjustable, said auxiliary winding shaft is formed by fitting a small diameter tube provided with an axial groove cut on one side into a large diameter tube provided also with an axial groove cut on one side, many annular concave grooves and annular convex parts fitting them are formed respectively in the fitting parts of the small diameter tube and large diameter tube so that the length of the auxiliary winding shaft may be adjustable, a winding chain is hung on a chain wheel secured to one end of the auxiliary winding shaft and engaging holes for said winding chain are made as opposed to the chain on the lower surface of the supporting case.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1972047543U JPS5140913Y2 (en) | 1972-04-24 | 1972-04-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3789904A true US3789904A (en) | 1974-02-05 |
Family
ID=12778046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US00323363A Expired - Lifetime US3789904A (en) | 1972-04-24 | 1973-01-15 | Double curtain device |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3789904A (en) |
| JP (1) | JPS5140913Y2 (en) |
Cited By (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3980122A (en) * | 1974-05-13 | 1976-09-14 | Ietsugu Takazawa | Curtain turning device |
| US4033397A (en) * | 1975-11-26 | 1977-07-05 | The Scott & Fetzer Company | Roll bar device for retractable awnings |
| US4139043A (en) * | 1977-03-10 | 1979-02-13 | Joanna Western Mills Company | Window shade slat |
| US4344474A (en) * | 1979-11-16 | 1982-08-17 | Joel Berman | Insulated shade |
| US4418739A (en) * | 1982-01-15 | 1983-12-06 | Appropriate Technology Corporation | Insulating window covering |
| US4953610A (en) * | 1989-03-17 | 1990-09-04 | Ultimate Window Coverings, Inc. | Double window shade assembly with independent shade movement |
| USRE34273E (en) * | 1989-03-17 | 1993-06-08 | Ultimate Window Coverings, Inc. | Double window shade assembly with independent shade movement |
| US5566736A (en) * | 1995-11-13 | 1996-10-22 | Crider; Grant W. | Sealable curtain |
| WO1997018376A1 (en) * | 1995-11-13 | 1997-05-22 | Hired Hand Manufacturing, Inc. | Sealable cover |
| US6004182A (en) * | 1996-08-12 | 1999-12-21 | Radio Flyer, Inc. | Temporary structure |
| ES2142708A1 (en) * | 1996-10-16 | 2000-04-16 | Inter Estor | Improved blind |
| US6138739A (en) * | 1999-01-15 | 2000-10-31 | Grant W. Crider | Portal covering |
| US6189592B1 (en) * | 1998-03-19 | 2001-02-20 | Harmonic Design, Inc. | Roll up shade doubled fabric having patterns thereon |
| US6460593B1 (en) * | 1999-08-18 | 2002-10-08 | James C. Floyd | Adjustable-width roller shade configured to maintain orthogonal tracking at all available widths |
| US20040188034A1 (en) * | 2003-03-26 | 2004-09-30 | Powell Billy R. | Retractable awning |
| US20060021715A1 (en) * | 2004-07-30 | 2006-02-02 | Leslie Nien | Roller blind structure |
| US20060096716A1 (en) * | 2004-11-09 | 2006-05-11 | Fu-Lai Yu | Customizable row assembly and method of manufacturing a window covering |
| US20070277938A1 (en) * | 2006-05-05 | 2007-12-06 | Crider Grant W | Portal covering for controlled environments |
| US20080185107A1 (en) * | 2007-02-03 | 2008-08-07 | Migues Clarence J | Brace for awning roller tube |
| US20080245490A1 (en) * | 2003-09-08 | 2008-10-09 | Hunter Douglas Industries Bv | Attachment of an architectural covering |
| US20090025887A1 (en) * | 2005-10-11 | 2009-01-29 | Osamu Ito | Movable awning device and winding roller for projected corner canvas |
| US20090242143A1 (en) * | 2008-04-01 | 2009-10-01 | Dung Viet Pham | Portable roll up window blind |
| US20090250177A1 (en) * | 2006-08-24 | 2009-10-08 | Tae Woong Byeon | Blinds for adjusting illumination made of thick material |
| US20100024991A1 (en) * | 2008-07-31 | 2010-02-04 | Carefree/Scott Fetzer Company | Sag-free retractable awning |
| US20100307697A1 (en) * | 2009-06-03 | 2010-12-09 | David Perkowitz | Multiple window shade system and method |
| US20110061821A1 (en) * | 2008-05-07 | 2011-03-17 | Sung Chul Kim | Roll blind |
| US20140158312A1 (en) * | 2012-12-05 | 2014-06-12 | David M. Townsley | Laterally repositionable roller shade |
| US20160153230A1 (en) * | 2013-07-15 | 2016-06-02 | Louver-Lite Limited | Roller Blind |
| US9631422B1 (en) * | 2016-02-01 | 2017-04-25 | Calendar Enterprises Co., Ltd. | Roller shade with a light regulating function |
| US10513884B2 (en) | 2015-02-04 | 2019-12-24 | Hunter Douglas Inc. | Roller shade assembly with multiple shade configurations |
| GB2602502A (en) * | 2021-01-05 | 2022-07-06 | Day Perry | Day-and-night blind |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1299481A (en) * | 1918-05-11 | 1919-04-08 | Henry S Klein | Background-carrier. |
| US2281022A (en) * | 1940-08-01 | 1942-04-28 | Cavanaugh Thomas Joseph | Shade construction |
| US2307095A (en) * | 1940-07-17 | 1943-01-05 | Zaferakis Alfred | Combination window shade and screen roller |
| US2581433A (en) * | 1945-09-29 | 1952-01-08 | North John | Window shade |
| US3128688A (en) * | 1962-06-12 | 1964-04-14 | Coda Alfred | Photographic background roller assembly |
-
1972
- 1972-04-24 JP JP1972047543U patent/JPS5140913Y2/ja not_active Expired
-
1973
- 1973-01-15 US US00323363A patent/US3789904A/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1299481A (en) * | 1918-05-11 | 1919-04-08 | Henry S Klein | Background-carrier. |
| US2307095A (en) * | 1940-07-17 | 1943-01-05 | Zaferakis Alfred | Combination window shade and screen roller |
| US2281022A (en) * | 1940-08-01 | 1942-04-28 | Cavanaugh Thomas Joseph | Shade construction |
| US2581433A (en) * | 1945-09-29 | 1952-01-08 | North John | Window shade |
| US3128688A (en) * | 1962-06-12 | 1964-04-14 | Coda Alfred | Photographic background roller assembly |
Cited By (51)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3980122A (en) * | 1974-05-13 | 1976-09-14 | Ietsugu Takazawa | Curtain turning device |
| US4033397A (en) * | 1975-11-26 | 1977-07-05 | The Scott & Fetzer Company | Roll bar device for retractable awnings |
| US4139043A (en) * | 1977-03-10 | 1979-02-13 | Joanna Western Mills Company | Window shade slat |
| US4344474A (en) * | 1979-11-16 | 1982-08-17 | Joel Berman | Insulated shade |
| US4418739A (en) * | 1982-01-15 | 1983-12-06 | Appropriate Technology Corporation | Insulating window covering |
| US4953610A (en) * | 1989-03-17 | 1990-09-04 | Ultimate Window Coverings, Inc. | Double window shade assembly with independent shade movement |
| USRE34273E (en) * | 1989-03-17 | 1993-06-08 | Ultimate Window Coverings, Inc. | Double window shade assembly with independent shade movement |
| US5566736A (en) * | 1995-11-13 | 1996-10-22 | Crider; Grant W. | Sealable curtain |
| WO1997018376A1 (en) * | 1995-11-13 | 1997-05-22 | Hired Hand Manufacturing, Inc. | Sealable cover |
| US5752557A (en) * | 1995-11-13 | 1998-05-19 | Hired-Hand Manufacturing, Inc. | Sealable curtain |
| US5785105A (en) * | 1995-11-13 | 1998-07-28 | Crider; Grant W. | Sealable curtain |
| US5960847A (en) * | 1995-11-13 | 1999-10-05 | Hired Hand Manufacturing, Inc. | Sealable curtain |
| US6004182A (en) * | 1996-08-12 | 1999-12-21 | Radio Flyer, Inc. | Temporary structure |
| ES2142708A1 (en) * | 1996-10-16 | 2000-04-16 | Inter Estor | Improved blind |
| US6189592B1 (en) * | 1998-03-19 | 2001-02-20 | Harmonic Design, Inc. | Roll up shade doubled fabric having patterns thereon |
| US6138739A (en) * | 1999-01-15 | 2000-10-31 | Grant W. Crider | Portal covering |
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| US10829991B2 (en) * | 2012-12-05 | 2020-11-10 | MCD Innovations, Inc. | Laterally repositionable roller shade |
| US20160153230A1 (en) * | 2013-07-15 | 2016-06-02 | Louver-Lite Limited | Roller Blind |
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| GB2602502A (en) * | 2021-01-05 | 2022-07-06 | Day Perry | Day-and-night blind |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5140913Y2 (en) | 1976-10-06 |
| JPS499518U (en) | 1974-01-26 |
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