US20100058704A9 - Deployable structures - Google Patents
Deployable structures Download PDFInfo
- Publication number
- US20100058704A9 US20100058704A9 US10/570,910 US57091006A US2010058704A9 US 20100058704 A9 US20100058704 A9 US 20100058704A9 US 57091006 A US57091006 A US 57091006A US 2010058704 A9 US2010058704 A9 US 2010058704A9
- Authority
- US
- United States
- Prior art keywords
- deployable structure
- deployable
- members
- hinge
- elements
- 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.)
- Abandoned
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/343—Structures characterised by movable, separable, or collapsible parts, e.g. for transport
- E04B1/344—Structures characterised by movable, separable, or collapsible parts, e.g. for transport with hinged parts
- E04B1/3441—Structures characterised by movable, separable, or collapsible parts, e.g. for transport with hinged parts with articulated bar-shaped elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/005—Girders or columns that are rollable, collapsible or otherwise adjustable in length or height
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
- E04B2001/1996—Tensile-integrity structures, i.e. structures comprising compression struts connected through flexible tension members, e.g. cables
Definitions
- the present invention relates broadly to deployable structures and an assembly comprising a plurality of deployable structures.
- Deployable structures for example, space frames, beam structures, etc.
- These structures are usually transported in a folded state to a chosen site for deployment. After use, they may be folded back and stored for redeployment.
- conventional deployable structures suffer from poor structural configurations in a fully deployed state.
- Many conventional foldable structures deploy into non-optimal shapes as the requirement for the structure to be foldable imposes geometric constraints that are sometimes contrary to structural requirements.
- the deployable structures may be bulky in a folded state, and are mechanically complex in design.
- Typical self-stabilizing or “clicking” or “self-locking” deployable structures do not provide structurally optimal forms in the fully deployed state. Some of them require enormous forces and coordination for deployment and undergo significant bending during deployment. Other forms of structural systems require a large number of individual components and complicated assembly operations to form the structure, making deployment or folding the structures time consuming and costly.
- a deployable structure comprising:
- first hinge element is capable of being stabilized for facilitating stabilization of the deployable structure into a deployed state.
- the deployable structure may further comprise:
- first and second hinge elements are connected to different ends of the central member
- first hinge element is detachably connected to the central member such that the first hinge element is stabilized when connected to the central member.
- the deployable structure may further comprise a fastening element to fasten the first hinge element to the central member.
- the deployable structure may comprise three or more pairs of hingeably connected members.
- One of the two members in each pair of hingeably connected members may be connected to the other member of said pair by at least one third hinge element.
- the deployable structure may further comprise cables or flexible elements connecting the third hinge elements.
- One of the two members in each pair of hingeably connected members may connected to the other member of said pair via one or more secondary members.
- the secondary members may be substantially parallel to an imaginary line joining the first and second hinge elements, when the deployable structure is in the deployed state.
- the hinge elements may allow a single degree-of-freedom of movement.
- the members may comprise one or more of a group comprising struts, rods, tubes, telescopic elements, self stabilizing elements and cables.
- the deployable structure may further comprise one or more energy stored devices for facilitating deployment and/or folding of the deployable structure.
- an assembly comprising a plurality of deployable structures, each deployable structure comprising:
- first hinge element is capable of being stabilized for facilitating stabilizing the deployable structure in a deployed state.
- Each deployable structure may further comprise:
- first and second hinge elements are connected to different ends of the central member
- first hinge element is detachably connected to the central member such that the first hinge element is stabilized when connected to the central member.
- the assembly may further comprise at least one cable or connecting the plurality of deployable structures.
- FIG. 1 is a schematic representation of a deployable structure according to an embodiment of the present invention
- FIG. 2 is a schematic representation of the deployable structure of FIG. 1 when partially folded;
- FIG. 3 a is a schematic representation of a plurality of connected deployable structures according to another embodiment of the present invention.
- FIG. 3 b is a schematic representation of a plurality of connected deployable structures according to another embodiment of the present invention.
- FIG. 4 a is a schematic representation of a plurality of connected deployable structures according to another embodiment of the present invention.
- FIG. 4 b is a schematic representation of a plurality of connected deployable structures according to another embodiment of the present invention.
- FIG. 4 c is a schematic representation of a plurality of connected deployable structures according to another embodiment of the present invention.
- FIG. 5 is a schematic representation of the deployable structure FIG. 1 , showing an upper plane, a middle plane and a lower plane;
- FIG. 6 is a schematic representation of a structural unit according to another embodiment of the present invention.
- FIG. 7 is a schematic representation of a structural unit according to yet another embodiment of the present invention.
- FIG. 8 is a schematic representation of a structural unit according to another embodiment of the present invention.
- FIG. 9 is a schematic representation of a structural unit according to yet another embodiment of the present invention.
- FIG. 10 is a schematic representation of a structural unit according to another embodiment of the present invention.
- the described embodiments relate to a structural system of foldable, deployable or collapsible structures made up of interconnected units that are extensible and collapsible into various structural shapes, for example, space frames, panels, columns, domes, vaults.
- FIG. 1 A schematic representation of a deployable structure 100 in an example embodiment is shown in FIG. 1 .
- the deployable structure 100 comprises a central element 130 , four upper elements 140 , four lower elements 150 , and a network of cables or flexible elements 170 .
- the upper and lower elements 140 , 150 are struts.
- the four lower elements 150 are attached to a lower hinge 104
- the four upper elements 140 are attached to an upper hinge 108 .
- Each of the upper elements 140 is hingeably connected to a corresponding lower element 150 by a middle hinge 112 , forming a pair.
- Each middle hinge 112 is connected to adjacent middle hinges 112 by the network of cables 170 .
- the upper and lower elements 140 , 150 may be made of metallic or composite materials.
- the hinges 104 , 108 , 112 allow the upper and lower elements 140 , 150 to rotate in a single degree-of-freedom, acting as pin-joints, and enable deployment and folding of the deployable structure 100 .
- a central element 130 When the deployable structure 100 is in a deployed state, one end of a central element 130 is detachably connected to the upper elements 140 via the upper hinge 108 , and the other end of the central element 130 is connected to the lower elements 150 via the lower hinge 104 . This allows the deployable structure 100 to be folded or deployed by attaching or detaching the end of the central element 130 from the upper hinge 108 . It should be appreciated that the central element 130 may be detachably connected to either the lower hinge 104 or the upper hinge 108 at one end or both ends. Alternatively, the central element 130 may comprise two sections (not shown) detachably joined with each end of the central element 130 attached to the upper hinge 108 and the lower hinge 104 , respectively.
- the upper hinge 108 may have means for disengaging and engaging the detachable end of the central element 130 , for example, a fastening mechanism (not shown) may be used to lock the detachable end of the central element 130 to the upper hinge 108 when the deployable structure 100 is fully deployed.
- a fastening mechanism (not shown) may be used to lock the detachable end of the central element 130 to the upper hinge 108 when the deployable structure 100 is fully deployed.
- the central element 130 is substantially perpendicular to the ground 190 .
- the deployable structure 100 in FIG. 1 is in the form of a square module. However, it should be appreciated that numerous other configurations, for example, triangular, hexagonal, pentagonal or other polygonal shapes may be formed with substantially the same arrangement, which has the central element 130 connecting the lower and upper hinges 104 , 108 .
- the basic unit shown in FIG. 1 can also be implemented without the central member by restraining the geometry of the upper elements ( 140 ) and lower elements 150 by means of a lockable hinges 108 , 112 , 104 , which restrain the movement of the elements 140 , 150 when the deployable structure 100 is in the fully deployed state.
- upper hinges 1080 may be disposed between lower hinges 1040 and a network of cables or flexible members 1700 joining the middle hinges 1120 , as shown in FIG. 10 .
- FIG. 2 is a schematic representation of the deployable structure 100 in a partially folded state.
- the deployable structure 100 is folded from the fully deployed state by detaching the central element 130 from the upper hinge 108 . This may be done by various means, for example, by releasing the fastening mechanism (not shown) on the upper hinge 108 .
- the central element 130 is in the form of a telescopic element, the length of the central element 130 may be reduced during detachment of the central element 130 from the upper hinge 108 .
- the detachable end of the central element 130 is disconnected from the upper hinge 108 , the elements 140 , 150 are folded towards the central member.
- the cables or flexible members 170 By exploiting the flexibility of the cables or flexible members 170 to improve the foldability of the deployable structure 100 , improved compaction of the structure 100 can be achieved, when the structure 100 is folded. Further, the use of the cables or flexible members 170 make the deployable structure 100 significantly lighter and stiffer, compared to conventional designs. The mechanical complexity of the structure is also minimised. The cables 170 also carry tensional loads efficiently and help to stabilise the geometry of the deployable structure 100 . Furthermore, a wide variety of structural shapes may be created by varying the length of the cables 170 .
- the cables 170 may be metallic or composite materials cables, fiber-based cables, etc.
- a plurality of deployable structures may be connected and deployed to form structural systems.
- a plurality of the deployable structures 300 may be connected in-line to form a beam 301 , as shown in FIG. 3 a .
- a cable or 390 may be used to join the lower hinge 304 of each deployable structure 300 to form the beam 301 .
- the middle hinges e.g. 307 may be of an integral type between adjacent individual structures 300 , i.e. one middle hinge e.g. 307 may be “shared” between adjacent individual structures 300 .
- a plurality of the deployable structures 350 may be connected in-line to form a beam 302 , as shown in FIG. 3 b.
- a cable 391 may be used to connect the upper hinges 306 , in addition to the cable 391 joining the lower hinges 305 .
- a plurality of deployable structures 400 may be connected and deployed in an array to form space frames and vaults, as shown in FIG. 4 a .
- connecting cables 490 may be used to join the lower hinges 404 of each of the deployable structures 400 .
- a combination of beam and space frame structures can also be synthesized using variations of the deployable structure 400 .
- a barrel vault configuration can be created by changing the lengths of the connecting cables 491 joining the lower elements 406 , as shown in FIG. 4 b.
- FIG. 4 c illustrates another example embodiment with additional connecting cables 493 connecting the upper elements 407 .
- the connecting cables 490 , 493 may be in other forms, for example, elements.
- FIGS. 4 b and 4 c show only one row of connected deployable structures.
- the length of the connecting cables 490 joining the array of deployable structures 400 may be changed to achieve similar configurations shown in FIGS. 4 b and 4 c.
- Other shapes, for example, a dome can also be created by using a combination of hexagonal, pentagonal, triangular and other structural shapes.
- the deployable structure 500 may be divided into three planes—a first plane (lower plane) 510 comprising the lower hinge 504 , a second plane (upper plane) 520 comprising the upper hinge 508 and a third plane (middle plane) 530 , between the lower plane 510 and the upper plane 520 , comprising by the middle hinges 512 .
- a network of cables (not shown), a membrane or sheet, etc may be attached to the upper and/or middle and/or lower planes 510 , 520 , 530 respectively to form various types of structural systems. It should be appreciated that a plurality of planes may be provided between the lower and upper planes 510 , 520 .
- FIGS. 6 to 10 Alternative embodiments of the deployable structure are shown in FIGS. 6 to 10 .
- Vertical rods 620 may be attached to the middle hinges 612 of the deployable structure 600 to facilitate attachment of sheets of fabric material or to increase the depth of the structural unit, or for bracing and other purposes.
- FIG. 7 shows a schematic representation of the deployable structure 700 according to another example embodiment.
- the deployable structure 700 has two layers of middle hinges comprising upper middle hinges 712 and lower middle hinges 714 .
- a vertical member 765 connects each of the upper middle hinges 712 to a corresponding lower middle hinge 714 , defining a parallelepiped.
- deployable structural units may be disposed between an upper middle plane 862 and a lower middle plane 864 of the deployable structure 800 , as shown in FIG. 8 , to increase the depth of the deployable structure 800 , improve structural efficiency and to facilitate deployment of the structure 800 .
- the additional structural units 895 comprise a pair of rods 896 , 897 pivoted to each other substantially in the centre.
- the deployable structure 900 may comprise cables 970 connecting the middle hinges 912 diagonally, as shown in FIG. 9 .
- the deployable structure 900 may also have additional cables connecting the middle hinges 912 (compare the cables 170 in FIG. 1 ).
- the central element may have energy stored devices such as springs, that help in the deployment process.
- energy stored devices such as springs
- Various telescopic and cable-realized mechanisms may be used to assist the coordinated deployment of the structure.
- Springs may be incorporated into the hinges for the same purpose.
- the cables may also be spring loaded or may have elastic attachments to prevent entanglement during deployment of the structure.
- the elements may be telescopic or telescopic and lockable to provide flexibility in configuring the structure.
- deployable structures may be combined with structural kinematic chains to facilitate deployment.
- the cables and/or the elements may be pre-tensioned to enhance the structural behavior of the unit.
- Fabric, sheet and other forms of covering material may be attached to the rods or cables by introducing additional connectors or by designing their shape to facilitate direct attachment.
- the example embodiments described above allow the fully deployed state of the structure to be structurally optimal.
- the structures in the example embodiments achieve quick installation with the minimal assembly operations.
- the structure is substantially free of stress during deployment and in the folded configuration.
- deployable structures include a wide range of temporary and permanent structures such as exhibition, emergency, entertainment, military, and space structures that require rapid deployment. It also can be used for shelters, roofs, bridges, pylons, radars, vaults and structures of various configurations.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Aerials With Secondary Devices (AREA)
- Details Of Aerials (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US49984803P | 2003-09-03 | 2003-09-03 | |
SGPCT/SG05/21882 | 2004-09-03 | ||
PCT/SG2004/000281 WO2005021882A1 (fr) | 2003-09-03 | 2004-09-03 | Structures deployables |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SG2004/000281 Continuation WO2005021882A1 (fr) | 2003-09-03 | 2004-09-03 | Structures deployables |
Publications (2)
Publication Number | Publication Date |
---|---|
US20090199503A1 US20090199503A1 (en) | 2009-08-13 |
US20100058704A9 true US20100058704A9 (en) | 2010-03-11 |
Family
ID=34272881
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/570,910 Abandoned US20100058704A9 (en) | 2003-09-03 | 2006-03-03 | Deployable structures |
Country Status (4)
Country | Link |
---|---|
US (1) | US20100058704A9 (fr) |
EP (1) | EP1668198A4 (fr) |
CN (1) | CN1875153A (fr) |
WO (1) | WO2005021882A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120067529A1 (en) * | 2010-07-16 | 2012-03-22 | University Of South Florida | Shape-shifting surfaces |
US20120234508A1 (en) * | 2010-07-16 | 2012-09-20 | University Of South Florida | Multistable shape-shifting surfaces |
US20220112706A1 (en) * | 2020-10-12 | 2022-04-14 | Jacob Eisenberg | Strata space frame |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011128769A2 (fr) * | 2010-04-16 | 2011-10-20 | Rodrigo Graf Fernandez | Structures pliables pour une construction |
ES2640986T3 (es) * | 2010-11-19 | 2017-11-07 | European Space Agency | Estructura de soporte desplegable compacta de poco peso |
BE1020575A5 (fr) * | 2012-03-16 | 2014-01-07 | Carpro | Construction et procede de construction. |
US20150167288A1 (en) * | 2012-07-06 | 2015-06-18 | Paul Harkin | Adjustable Structures |
NO337317B1 (no) * | 2013-11-04 | 2016-03-07 | Ipi Access As | Sammenleggbar, langstrakt bærekonstruksjonsmodul og en sammenleggbar, langstrakt modulær bjelkekonstruksjon. |
CN103615639A (zh) * | 2013-11-25 | 2014-03-05 | 中国航空工业集团公司沈阳发动机设计研究所 | 一种卫星反射器用可伸缩支撑机构 |
CN103758210B (zh) * | 2014-01-10 | 2016-06-08 | 东南大学 | 一种用于实现自由曲面的完全折叠结构及其方法 |
CN104018023A (zh) * | 2014-05-06 | 2014-09-03 | 阜阳市光普照明科技有限公司 | 一种led封装用铜合金键合连接线的制备方法 |
US9783978B1 (en) * | 2016-08-01 | 2017-10-10 | University Of South Florida | Shape-morphing space frame apparatus using linear bistable elements |
Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3381923A (en) * | 1965-12-27 | 1968-05-07 | Fairchild Hiller Corp | Deployable structure |
US3771274A (en) * | 1972-05-30 | 1973-11-13 | Gen Dynamics Corp | Expandable retractable structure |
US4290244A (en) * | 1976-07-13 | 1981-09-22 | Zeigler Theodore Richard | Collapsible self-supporting structures and panels and hub therefor |
US4539786A (en) * | 1983-03-03 | 1985-09-10 | Ltv Aerospace And Defense Co. | Biaxial scissors fold, post tensioned structure |
US4557097A (en) * | 1983-09-08 | 1985-12-10 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Sequentially deployable maneuverable tetrahedral beam |
US4574535A (en) * | 1984-04-14 | 1986-03-11 | Deutsche Forschungs- Und Versuchsanstalt Fur Luft- Und Raumfahrt E.V. | Mast-type three-dimensional framework structure |
US4587777A (en) * | 1981-10-09 | 1986-05-13 | General Dynamics Corporation/Convair Div. | Deployable space truss beam |
US4677803A (en) * | 1986-02-20 | 1987-07-07 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Deployable geodesic truss structure |
US4745725A (en) * | 1984-05-07 | 1988-05-24 | Japan Aircraft Mfg. Co., Ltd. | Deployable truss structure |
US4958474A (en) * | 1987-05-18 | 1990-09-25 | Astro Aerospace Corporation | Truss structure |
US5016418A (en) * | 1986-08-22 | 1991-05-21 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Synchronously deployable double fold beam and planar truss structure |
US5167100A (en) * | 1986-06-12 | 1992-12-01 | Anandasivam Krishnapillai | Deployable structures |
US5701713A (en) * | 1996-03-29 | 1997-12-30 | Silver; Daniel J. | Adjustable truss |
US5819492A (en) * | 1995-07-17 | 1998-10-13 | Konicek; Richard R. | Collapsible roof truss utilizing an opposed flange roof hinge |
US5931420A (en) * | 1997-02-24 | 1999-08-03 | Mitsubishi Denki Kabushiki Kaisha | Deployable truss structure |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2671601B1 (fr) * | 1991-01-11 | 1993-08-06 | Guinaudeau Expl Ets Michel | Structure deployable et repliable notamment pour la formation d'un stand. |
-
2004
- 2004-09-03 WO PCT/SG2004/000281 patent/WO2005021882A1/fr active Application Filing
- 2004-09-03 CN CNA2004800317571A patent/CN1875153A/zh active Pending
- 2004-09-03 EP EP04775603A patent/EP1668198A4/fr not_active Withdrawn
-
2006
- 2006-03-03 US US10/570,910 patent/US20100058704A9/en not_active Abandoned
Patent Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3381923A (en) * | 1965-12-27 | 1968-05-07 | Fairchild Hiller Corp | Deployable structure |
US3771274A (en) * | 1972-05-30 | 1973-11-13 | Gen Dynamics Corp | Expandable retractable structure |
US4290244A (en) * | 1976-07-13 | 1981-09-22 | Zeigler Theodore Richard | Collapsible self-supporting structures and panels and hub therefor |
US4587777A (en) * | 1981-10-09 | 1986-05-13 | General Dynamics Corporation/Convair Div. | Deployable space truss beam |
US4539786A (en) * | 1983-03-03 | 1985-09-10 | Ltv Aerospace And Defense Co. | Biaxial scissors fold, post tensioned structure |
US4557097A (en) * | 1983-09-08 | 1985-12-10 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Sequentially deployable maneuverable tetrahedral beam |
US4574535A (en) * | 1984-04-14 | 1986-03-11 | Deutsche Forschungs- Und Versuchsanstalt Fur Luft- Und Raumfahrt E.V. | Mast-type three-dimensional framework structure |
US4745725A (en) * | 1984-05-07 | 1988-05-24 | Japan Aircraft Mfg. Co., Ltd. | Deployable truss structure |
US4677803A (en) * | 1986-02-20 | 1987-07-07 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Deployable geodesic truss structure |
US5167100A (en) * | 1986-06-12 | 1992-12-01 | Anandasivam Krishnapillai | Deployable structures |
US5016418A (en) * | 1986-08-22 | 1991-05-21 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Synchronously deployable double fold beam and planar truss structure |
US4958474A (en) * | 1987-05-18 | 1990-09-25 | Astro Aerospace Corporation | Truss structure |
US5819492A (en) * | 1995-07-17 | 1998-10-13 | Konicek; Richard R. | Collapsible roof truss utilizing an opposed flange roof hinge |
US5701713A (en) * | 1996-03-29 | 1997-12-30 | Silver; Daniel J. | Adjustable truss |
US5931420A (en) * | 1997-02-24 | 1999-08-03 | Mitsubishi Denki Kabushiki Kaisha | Deployable truss structure |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120067529A1 (en) * | 2010-07-16 | 2012-03-22 | University Of South Florida | Shape-shifting surfaces |
US20120234508A1 (en) * | 2010-07-16 | 2012-09-20 | University Of South Florida | Multistable shape-shifting surfaces |
US8402711B2 (en) * | 2010-07-16 | 2013-03-26 | University Of South Florida | Multistable shape-shifting surfaces |
US8424265B2 (en) * | 2010-07-16 | 2013-04-23 | University Of South Florida | Shape-shifting surfaces |
US20220112706A1 (en) * | 2020-10-12 | 2022-04-14 | Jacob Eisenberg | Strata space frame |
US11680398B2 (en) * | 2020-10-12 | 2023-06-20 | Jacob Eisenberg | Strata space frame |
Also Published As
Publication number | Publication date |
---|---|
US20090199503A1 (en) | 2009-08-13 |
WO2005021882A1 (fr) | 2005-03-10 |
EP1668198A1 (fr) | 2006-06-14 |
EP1668198A4 (fr) | 2009-03-04 |
CN1875153A (zh) | 2006-12-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: NATIONAL UNIVERSITY OF SINGAPORE, SINGAPORE Free format text: NUNC PRO TUNC ASSIGNMENT;ASSIGNORS:LIEW, JAT YUEN RICHARD;KRISHNAPILLAI, ANANDASIVAM;REEL/FRAME:022298/0162 Effective date: 20080904 Owner name: NATIONAL UNIVERSITY OF SINGAPORE,SINGAPORE Free format text: NUNC PRO TUNC ASSIGNMENT;ASSIGNORS:LIEW, JAT YUEN RICHARD;KRISHNAPILLAI, ANANDASIVAM;REEL/FRAME:022298/0162 Effective date: 20080904 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |