US20070151586A1 - Windproof umbrella with integral upper canopy and method of making same - Google Patents
Windproof umbrella with integral upper canopy and method of making same Download PDFInfo
- Publication number
- US20070151586A1 US20070151586A1 US11/386,730 US38673006A US2007151586A1 US 20070151586 A1 US20070151586 A1 US 20070151586A1 US 38673006 A US38673006 A US 38673006A US 2007151586 A1 US2007151586 A1 US 2007151586A1
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- United States
- Prior art keywords
- canopy
- cloth
- umbrella
- conic
- corners
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- 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.)
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
- A45B25/00—Details of umbrellas
- A45B25/22—Devices for increasing the resistance of umbrellas to wind
Definitions
- the present invention relates to windproof umbrellas and more particularly to a windproof umbrella having an integral upper canopy and a method of manufacturing same.
- a conventional windproof umbrella 1 disclosed in U.S. Pat. No. 4,979,534 comprises an upper canopy 12 and a lower canopy 11 both stretched over a folding radial frame 10 .
- a plurality of vent holes are formed on the lower canopy 11 and at least one vent hole is formed on the upper canopy 12 .
- a plurality of escape paths for wind 13 are formed between the upper canopy 12 and the lower canopy 11 when strong wind exerts an upward force from an underside of the umbrella 1 to resiliently slightly pull the upper canopy 12 away from the lower canopy 11 about a top of a center post.
- the upper canopy 12 is not formed integrally.
- eight triangular sectors 14 of cloth are stitched together to form an upper canopy 12 in the manufacturing process. This is a time consuming process, resulting in an increase in the manufacturing cost.
- forming aesthetic pattern(s) on the upper canopy 12 is more difficult due to stitching.
- Another conventional ventilated umbrella disclosed in U.S. Pat. No. 6,155,278 comprises a first canopy secured on an inner area of a fully expanded surface of a support frame, and a band-shaped second canopy secured on an outer area of the fully expanded surface of support frame and slightly overlapped by the first canopy.
- a gap between an outer edge of the first canopy and an inner edge of the second canopy is enlarged by stretching each of a plurality of extension strips extending inward from the inner edge of the second canopy, thereby enhancing a ventilating effect.
- the manufacturing process is complicated.
- the desired ventilating effect is an exaggeration since the gap is small even in its enlarged state during high winds.
- U.S. Pat. No. 5,806,546 entitled “A Method of Eliminating Corrugation in Central Umbrella Cover” discloses a method of manufacturing an integral canopy by a single piece of plain weave cloth.
- the weft has no stretch capability and the warp has a slight stretch capability.
- the umbrella cover and the main ribs are set at an angle of ten degrees relative to each other.
- the tail end of the main ribs and the sewing points of the umbrella cloth are not fallen on the parallel line of the warp of weft.
- Length is different from the sewing points to the central part of the ribs so as to balance tension of different stretch points.
- Edge of the umbrella cover is cut out and is sewed properly for not generating corrugation.
- the central part of the umbrella cover does not have corrugation and looseness because the main ribs have a slight curvature and the oblique mesh is able to balance the stretched tension.
- its manufacturing process is very complicated, resulting in an increase in the manufacturing cost.
- structural strength of the umbrella is adversely affected by the stretch and the cutting. Thus, the need for improvement still exists.
- a process of manufacturing a windproof umbrella comprising providing an integral piece of polygonal cloth having a plurality of corners; forming a plurality of substantially conic members each disposed on a joining end of one corner and another adjacent corner by shaping and stitching wherein the conic members are substantially flat in an inoperative state, and the conic members are expanded to form a substantially conic shape in response to high winds; providing a folding radial frame including a center post, a plurality of stretchers, and a plurality of ribs; securing a lower canopy having a central opening onto the frame; and securing the cloth onto the frame to form an upper canopy having a plurality of sectors in covering relation to the central opening; wherein each of a plurality of escape paths for wind is formed between the sector of the upper canopy and an upper edge of the lower canopy.
- a windproof umbrella comprising a folding radial frame including a center post, a plurality of stretchers, and a plurality of ribs; a lower canopy having a central opening secured onto the frame; and an upper canopy having a plurality of sectors secured onto the frame in covering relation to the central opening; wherein the upper canopy is formed by an integral piece of polygonal cloth having a plurality of corners and a plurality of substantially conic members each formed on a joining end of one corner and another adjacent corner by shaping and stitching; the conic members are substantially flat in an inoperative state and are expanded to form a substantially conic shape in response to high winds; and a plurality of escape paths for wind each between the sector of the upper canopy and an upper edge of the lower canopy are formed in response to the forming of a substantially conic shape in each of the conic members.
- FIG. 1 is a perspective view of a conventional windproof umbrella in an open condition
- FIG. 2 is a perspective view of a preferred embodiment of windproof umbrella according to the invention, in an open condition
- FIG. 3 is a perspective view of an integral upper canopy prior to manufacturing
- FIG. 4 is a perspective view of the upper canopy in FIG. 3 showing one of a plurality of corners thereof being shaped in the manufacturing process;
- FIG. 5 is an enlarged view of the area in circle of FIG. 4 ;
- FIG. 6 is a view similar to FIG. 5 showing a stitching step of forming a conic member in the manufacturing process
- FIG. 7 is a view similar to FIG. 5 showing the expanded conic member in response to high winds;
- FIG. 8 is a perspective view of the produced upper canopy of the invention.
- FIG. 9 is a sectional view of the conventional windproof umbrella showing the forming of an escape path for wind in response to high winds;
- FIG. 10 is a sectional view of the windproof umbrella of the invention showing the forming of escape paths for wind in response to high winds;
- FIG. 11 is a schematic side view of a portion of the windproof umbrella frame of the invention showing the expanding of the conic member and the forming of the air escape route in response to high winds.
- a windproof umbrella in accordance with a preferred embodiment of the invention comprises a folding radial frame 2 , an upper canopy 4 , and a lower canopy 3 having a central opening (not shown).
- the frame 2 comprises a center post 21 , a plurality of stretchers, and a plurality of ribs 22 having one end pivotably connected to a top of the post 21 .
- the upper canopy 4 is secured onto upper portions the ribs 22 , has a center secured to the top of the post 21 , and is positioned in a partial covering relation to an upper edge of the lower canopy 3 as detailed later.
- the upper canopy 4 is formed of an integral piece of polygonal cloth 41 having eight corners 43 . Note that the cloth 41 may have six corners or a number of corners other than eight.
- a substantially conic member 42 on a joining end of one corner 43 and another adjacent corner 43 .
- the conic member 42 has a tapered closed end toward a center of the cloth 41 and a space open to outer edge of the cloth 41 . Further, the space is open to a triangular portion of the cloth 41 proximate the corner 43 prior to being closed by stitching in the final step of the manufacturing process.
- the formed conic member 42 is substantially flat.
- a substantially conic shape is formed by the conic member 42 in response to high winds (see FIG. 7 ).
- Sizes of the air escape routes 44 and the escape paths for wind 40 are automatically changed in response to the expanding extent of the conic members 42 which is again changed in response to wind strength. That is, the stronger of high winds the larger of the sizes of the air escape routes 44 and the escape paths for wind 40 will be. As a result, the wind escaping effect is very good. Further, no cutting is involved in the manufacturing process of the upper canopy 4 . Thus, the manufacturing process is much simple. Furthermore, aesthetic pattern(s) may be printed on the integral cloth 41 prior to the manufacturing process without worrying about being cut undesirably as experienced by the prior art.
Abstract
Windproof umbrella and method of making same are disclosed. The method includes providing an integral, polygonal cloth having corners; forming substantially conic members each disposed on a joining end of one corner and another adjacent corner by shaping and stitching; providing a folding radial frame; securing a lower canopy having a central opening onto the frame; and securing the cloth onto the frame to form an upper canopy having sectors in covering relation to the central opening. The conic members are substantially flat in an inoperative state and are expanded to form a substantially conic shape in response to high winds. Each escape path for wind is thus formed between the sector of the upper canopy and an upper edge of the lower canopy. No cutting is involved in the method. Also, no creases and looseness in a central portion of the umbrella are formed.
Description
- The present invention relates to windproof umbrellas and more particularly to a windproof umbrella having an integral upper canopy and a method of manufacturing same. 2. Description of Related Art
- A conventional
windproof umbrella 1 disclosed in U.S. Pat. No. 4,979,534 comprises anupper canopy 12 and alower canopy 11 both stretched over a foldingradial frame 10. A plurality of vent holes are formed on thelower canopy 11 and at least one vent hole is formed on theupper canopy 12. A plurality of escape paths forwind 13 are formed between theupper canopy 12 and thelower canopy 11 when strong wind exerts an upward force from an underside of theumbrella 1 to resiliently slightly pull theupper canopy 12 away from thelower canopy 11 about a top of a center post. However, theupper canopy 12 is not formed integrally. In fact, eighttriangular sectors 14 of cloth are stitched together to form anupper canopy 12 in the manufacturing process. This is a time consuming process, resulting in an increase in the manufacturing cost. Moreover, forming aesthetic pattern(s) on theupper canopy 12 is more difficult due to stitching. - Another conventional ventilated umbrella disclosed in U.S. Pat. No. 6,155,278 comprises a first canopy secured on an inner area of a fully expanded surface of a support frame, and a band-shaped second canopy secured on an outer area of the fully expanded surface of support frame and slightly overlapped by the first canopy. A gap between an outer edge of the first canopy and an inner edge of the second canopy is enlarged by stretching each of a plurality of extension strips extending inward from the inner edge of the second canopy, thereby enhancing a ventilating effect. However, the manufacturing process is complicated. Also, the desired ventilating effect is an exaggeration since the gap is small even in its enlarged state during high winds.
- U.S. Pat. No. 5,806,546 entitled “A Method of Eliminating Corrugation in Central Umbrella Cover” discloses a method of manufacturing an integral canopy by a single piece of plain weave cloth. The weft has no stretch capability and the warp has a slight stretch capability. The umbrella cover and the main ribs are set at an angle of ten degrees relative to each other. The tail end of the main ribs and the sewing points of the umbrella cloth are not fallen on the parallel line of the warp of weft. Length is different from the sewing points to the central part of the ribs so as to balance tension of different stretch points. Edge of the umbrella cover is cut out and is sewed properly for not generating corrugation. When the umbrella is open, the central part of the umbrella cover does not have corrugation and looseness because the main ribs have a slight curvature and the oblique mesh is able to balance the stretched tension. However, its manufacturing process is very complicated, resulting in an increase in the manufacturing cost. Further, structural strength of the umbrella is adversely affected by the stretch and the cutting. Thus, the need for improvement still exists.
- It is therefore an object of the present invention to provide a windproof umbrella having an integral upper canopy and a method of manufacturing same without involving a cutting step. Also, no creases and looseness in a central portion of the umbrella are formed. Further, the manufacturing process is much simplified, resulting in a decrease in the manufacturing cost. Furthermore, the windproof effect is much enhanced.
- In an aspect of the present invention there is provided a process of manufacturing a windproof umbrella, comprising providing an integral piece of polygonal cloth having a plurality of corners; forming a plurality of substantially conic members each disposed on a joining end of one corner and another adjacent corner by shaping and stitching wherein the conic members are substantially flat in an inoperative state, and the conic members are expanded to form a substantially conic shape in response to high winds; providing a folding radial frame including a center post, a plurality of stretchers, and a plurality of ribs; securing a lower canopy having a central opening onto the frame; and securing the cloth onto the frame to form an upper canopy having a plurality of sectors in covering relation to the central opening; wherein each of a plurality of escape paths for wind is formed between the sector of the upper canopy and an upper edge of the lower canopy.
- In another aspect of the present invention there is provided a windproof umbrella comprising a folding radial frame including a center post, a plurality of stretchers, and a plurality of ribs; a lower canopy having a central opening secured onto the frame; and an upper canopy having a plurality of sectors secured onto the frame in covering relation to the central opening; wherein the upper canopy is formed by an integral piece of polygonal cloth having a plurality of corners and a plurality of substantially conic members each formed on a joining end of one corner and another adjacent corner by shaping and stitching; the conic members are substantially flat in an inoperative state and are expanded to form a substantially conic shape in response to high winds; and a plurality of escape paths for wind each between the sector of the upper canopy and an upper edge of the lower canopy are formed in response to the forming of a substantially conic shape in each of the conic members.
- The above and other objects, features and advantages of the present invention will become apparent from the following detailed description taken with the accompanying drawings.
-
FIG. 1 is a perspective view of a conventional windproof umbrella in an open condition; -
FIG. 2 is a perspective view of a preferred embodiment of windproof umbrella according to the invention, in an open condition; -
FIG. 3 is a perspective view of an integral upper canopy prior to manufacturing; -
FIG. 4 is a perspective view of the upper canopy inFIG. 3 showing one of a plurality of corners thereof being shaped in the manufacturing process; -
FIG. 5 is an enlarged view of the area in circle ofFIG. 4 ; -
FIG. 6 is a view similar toFIG. 5 showing a stitching step of forming a conic member in the manufacturing process; -
FIG. 7 is a view similar toFIG. 5 showing the expanded conic member in response to high winds; -
FIG. 8 is a perspective view of the produced upper canopy of the invention; -
FIG. 9 is a sectional view of the conventional windproof umbrella showing the forming of an escape path for wind in response to high winds; -
FIG. 10 is a sectional view of the windproof umbrella of the invention showing the forming of escape paths for wind in response to high winds; and -
FIG. 11 is a schematic side view of a portion of the windproof umbrella frame of the invention showing the expanding of the conic member and the forming of the air escape route in response to high winds. - Referring to FIGS. 2 to 8 and 11, a windproof umbrella in accordance with a preferred embodiment of the invention comprises a folding
radial frame 2, anupper canopy 4, and alower canopy 3 having a central opening (not shown). Theframe 2 comprises acenter post 21, a plurality of stretchers, and a plurality ofribs 22 having one end pivotably connected to a top of thepost 21. Theupper canopy 4 is secured onto upper portions theribs 22, has a center secured to the top of thepost 21, and is positioned in a partial covering relation to an upper edge of thelower canopy 3 as detailed later. - A manufacturing process of the
upper canopy 4 is illustrated below. Theupper canopy 4 is formed of an integral piece ofpolygonal cloth 41 having eightcorners 43. Note that thecloth 41 may have six corners or a number of corners other than eight. Next, form a substantiallyconic member 42 on a joining end of onecorner 43 and anotheradjacent corner 43. Theconic member 42 has a tapered closed end toward a center of thecloth 41 and a space open to outer edge of thecloth 41. Further, the space is open to a triangular portion of thecloth 41 proximate thecorner 43 prior to being closed by stitching in the final step of the manufacturing process. The formedconic member 42 is substantially flat. A substantially conic shape is formed by theconic member 42 in response to high winds (seeFIG. 7 ). Also, thecloth 41 has a curvature after forming theconic members 42 at thecorners 43. Thus, no creases and looseness in a central portion of the umbrella when the formed cloth 41 (i.e., the upper canopy 4) is secured onto the ribs 22 (seeFIG. 8 ). The formedupper canopy 4 is positioned in a partial covering relation to the upper edge of thelower canopy 3, thereby forming eight escape paths forwind 40 between eight sectors of theupper canopy 4 and the upper edge of thelower canopy 3. The escape path forwind 40 has a width defined from oneconic member 42 to an. adjacent conic member 42 (seeFIG. 2 ). - Referring to
FIG. 9 , in the prior art windproof umbrella a plurality of escape paths forwind 13 are formed at an unstitched portion between theupper canopy 12 and thelower canopy 11 when strong wind exerts an upward force from an underside of the umbrella to resiliently slightly pull theupper canopy 12 away from thelower canopy 11 about the top of thepost 21. However, in fact, not all escape paths forwind 13 are open (i.e., some escape paths forwind 13 are still closed) during high winds. As a result, the desired wind escaping effect is much compromised. In contrast as shown inFIGS. 10 and 11 , wind quickly blows into theconic members 42 to fully expand same. At the same time, if wind is sufficiently strong the escape paths forwind 40 are formed and expanded quickly by the high winds from theconic members 42 to provide a sufficientair escape route 44 between theupper canopy 4 and the lower canopy 3 (i.e., a maximum distance therebetween) during high winds so as to prevent inversion of the umbrella constructed in accordance with the invention. - Sizes of the
air escape routes 44 and the escape paths forwind 40 are automatically changed in response to the expanding extent of theconic members 42 which is again changed in response to wind strength. That is, the stronger of high winds the larger of the sizes of theair escape routes 44 and the escape paths forwind 40 will be. As a result, the wind escaping effect is very good. Further, no cutting is involved in the manufacturing process of theupper canopy 4. Thus, the manufacturing process is much simple. Furthermore, aesthetic pattern(s) may be printed on theintegral cloth 41 prior to the manufacturing process without worrying about being cut undesirably as experienced by the prior art. - While the invention herein disclosed has been described by means of specific embodiments, numerous modifications and variations could be made thereto by those skilled in the art without departing from the scope and spirit of the invention set forth in the claims.
Claims (9)
1. A process of manufacturing a windproof umbrella, comprising the steps of:
(i) providing an integral piece of polygonal cloth having a plurality of corners;
(ii) forming a plurality of substantially conic members each disposed on a joining end of one corner and another adjacent corner by shaping and stitching wherein the conic members are substantially flat in an inoperative state and are expanded to form a substantially conic shape in response to high winds;
(iii) providing a folding radial frame including a center post, a plurality of stretchers, and a plurality of ribs;
(iv) securing a lower canopy having a central opening onto the frame; and
(v) securing the cloth onto the frame to form an upper canopy having a plurality of sectors in covering relation to the central opening.
2. The process of claim 1 , wherein the forming of a substantially conic shape in each of the conic members in the step (ii) further forms a plurality of escape paths for wind each between the sector of the upper canopy and an upper edge of the lower canopy.
3. The process of claim 1 , further comprising the step of printing one or more patters on the cloth prior to the step (i).
4. The process of claim 1 , wherein the cloth has eight corners.
5. The process of claim 1 , wherein the cloth has six corners.
6. A windproof umbrella, comprising:
a folding radial frame including a center post, a plurality of stretchers, and a plurality of ribs;
a lower canopy having a central opening secured onto the frame; and
an upper canopy having a plurality of sectors secured onto the frame in covering relation to the central opening; wherein
the upper canopy is formed by an integral piece of polygonal cloth having a plurality of corners and a plurality of substantially conic members each formed on a joining end of one corner and another adjacent corner by shaping and stitching;
the conic members are substantially flat in an inoperative state and are expanded to form a substantially conic shape in response to high winds; and
a plurality of escape paths for wind each between the sector of the upper canopy and an upper edge of the lower canopy are formed in response to the forming of a substantially conic shape in each of the conic members.
7. The umbrella of claim 6 , wherein one or more patters are printed on the cloth prior to forming the upper canopy.
8. The umbrella of claim 6 , wherein the cloth has eight corners.
9. The umbrella of claim 6 , wherein the cloth has six corners.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200510135152.3 | 2005-12-29 | ||
CNA2005101351523A CN1989867A (en) | 2005-12-29 | 2005-12-29 | Wind-break umbrella with single piece of umbrella cloth |
Publications (1)
Publication Number | Publication Date |
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US20070151586A1 true US20070151586A1 (en) | 2007-07-05 |
Family
ID=38212577
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/386,730 Abandoned US20070151586A1 (en) | 2005-12-29 | 2006-03-23 | Windproof umbrella with integral upper canopy and method of making same |
Country Status (2)
Country | Link |
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US (1) | US20070151586A1 (en) |
CN (1) | CN1989867A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101843397A (en) * | 2010-04-29 | 2010-09-29 | 吕信苗 | Multifunctional sun-shading and leisure umbrella |
US20170112244A1 (en) * | 2015-10-22 | 2017-04-27 | Marc R. VISCOGLIOSI, JR. | Umbrella with protective sheath assembly |
USD822368S1 (en) * | 2016-12-21 | 2018-07-10 | Ching-Chuan You | Two layers umbrella |
USD870449S1 (en) * | 2018-09-04 | 2019-12-24 | Xiamen Sunfoo Industry Co., Ltd | Diamond-shaped double-layer umbrella |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110200374A (en) * | 2019-07-10 | 2019-09-06 | 李一军 | A kind of positioning pleating exempts to close piece umbrella and its processing method |
CN113524934B (en) * | 2020-04-14 | 2022-11-01 | 厦门光华数码纺织科技有限公司 | Umbrella cloth printing method for eliminating stitching influence on pattern integrity and umbrella |
Citations (10)
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US1619217A (en) * | 1922-08-24 | 1927-03-01 | Reid James | Umbrella |
US4979534A (en) * | 1989-02-10 | 1990-12-25 | Leonard Holtz | Windproof umbrella |
US5806546A (en) * | 1996-06-07 | 1998-09-15 | Ni; Fong-Ming | Method of eliminating corrugation in central umbrella cover |
US6155278A (en) * | 1999-03-19 | 2000-12-05 | Lin; Yao-Chin | Ventilated umbrella |
US20020056472A1 (en) * | 2000-11-13 | 2002-05-16 | Nanus Jeffrey L. | Wind -resistant umbrella |
US6401737B1 (en) * | 2000-08-17 | 2002-06-11 | Under Color Llc | Umbrella replacement canopy |
US20020134412A1 (en) * | 2001-03-26 | 2002-09-26 | Ching-Chuan You | Umbrella with vents on the umbrella cloth for venting wind |
US20030098050A1 (en) * | 2001-11-28 | 2003-05-29 | Youth Lee | Umbrella structure |
US20040211452A1 (en) * | 2003-04-22 | 2004-10-28 | Chien-Lung Wu | Two tiered vented canopy wind resistant umbrella |
US7063029B1 (en) * | 2002-11-26 | 2006-06-20 | Hot Off The Press Promotions, Inc. | Umbrella, umbrella cover, and method of making |
-
2005
- 2005-12-29 CN CNA2005101351523A patent/CN1989867A/en active Pending
-
2006
- 2006-03-23 US US11/386,730 patent/US20070151586A1/en not_active Abandoned
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1619217A (en) * | 1922-08-24 | 1927-03-01 | Reid James | Umbrella |
US4979534A (en) * | 1989-02-10 | 1990-12-25 | Leonard Holtz | Windproof umbrella |
US5806546A (en) * | 1996-06-07 | 1998-09-15 | Ni; Fong-Ming | Method of eliminating corrugation in central umbrella cover |
US6155278A (en) * | 1999-03-19 | 2000-12-05 | Lin; Yao-Chin | Ventilated umbrella |
US6401737B1 (en) * | 2000-08-17 | 2002-06-11 | Under Color Llc | Umbrella replacement canopy |
US20020056472A1 (en) * | 2000-11-13 | 2002-05-16 | Nanus Jeffrey L. | Wind -resistant umbrella |
US20020134412A1 (en) * | 2001-03-26 | 2002-09-26 | Ching-Chuan You | Umbrella with vents on the umbrella cloth for venting wind |
US20030098050A1 (en) * | 2001-11-28 | 2003-05-29 | Youth Lee | Umbrella structure |
US7063029B1 (en) * | 2002-11-26 | 2006-06-20 | Hot Off The Press Promotions, Inc. | Umbrella, umbrella cover, and method of making |
US20040211452A1 (en) * | 2003-04-22 | 2004-10-28 | Chien-Lung Wu | Two tiered vented canopy wind resistant umbrella |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101843397A (en) * | 2010-04-29 | 2010-09-29 | 吕信苗 | Multifunctional sun-shading and leisure umbrella |
US20170112244A1 (en) * | 2015-10-22 | 2017-04-27 | Marc R. VISCOGLIOSI, JR. | Umbrella with protective sheath assembly |
USD822368S1 (en) * | 2016-12-21 | 2018-07-10 | Ching-Chuan You | Two layers umbrella |
USD870449S1 (en) * | 2018-09-04 | 2019-12-24 | Xiamen Sunfoo Industry Co., Ltd | Diamond-shaped double-layer umbrella |
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