CN101151423A - C-shaped profile and partition comprising a C-shaped profile - Google Patents

C-shaped profile and partition comprising a C-shaped profile Download PDF

Info

Publication number
CN101151423A
CN101151423A CNA2006800107360A CN200680010736A CN101151423A CN 101151423 A CN101151423 A CN 101151423A CN A2006800107360 A CNA2006800107360 A CN A2006800107360A CN 200680010736 A CN200680010736 A CN 200680010736A CN 101151423 A CN101151423 A CN 101151423A
Authority
CN
China
Prior art keywords
section bar
sidepiece
load state
subtended angle
reinforcing rib
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.)
Pending
Application number
CNA2006800107360A
Other languages
Chinese (zh)
Inventor
阿尔方斯·吉恩·克瑙夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Richter System GmbH and Co KG
Original Assignee
Richter System GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Richter System GmbH and Co KG filed Critical Richter System GmbH and Co KG
Publication of CN101151423A publication Critical patent/CN101151423A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/74Removable non-load-bearing partitions; Partitions with a free upper edge
    • E04B2/7407Removable non-load-bearing partitions; Partitions with a free upper edge assembled using frames with infill panels or coverings only; made-up of panels and a support structure incorporating posts
    • E04B2/7409Removable non-load-bearing partitions; Partitions with a free upper edge assembled using frames with infill panels or coverings only; made-up of panels and a support structure incorporating posts special measures for sound or thermal insulation, including fire protection
    • E04B2/7412Posts or frame members specially adapted for reduced sound or heat transmission

Landscapes

  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Thermal Sciences (AREA)
  • Building Environments (AREA)
  • Finishing Walls (AREA)
  • Revetment (AREA)
  • Artificial Fish Reefs (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Fencing (AREA)
  • Assembled Shelves (AREA)

Abstract

The present invention relates to a C-section bar (1, 1' and 1'') which is made of metal plate and a wall partition that is used to be covered at the two sides, and the section bar is provided with two side parts (2) and a base part (3) connected with the side parts (2). The invention is characterized in that the base part (3) synthesizes an angular aperture (R) larger than 90 degrees to at least one side part (2) in the no-load state of the C-section bar (1, 1' and 1'').

Description

C-section bar and partition wall with C-section bar
Technical field
The present invention relates to the C-section bar made by metal sheet, it is used for the partition wall that the two sides is capped, and this section bar has two sidepieces and a bottom that is connected sidepiece.
Background technology
This class C-section bar for example has disclosed in DE 100 13 991 C1.It is used among the interior decoration field usually, and purpose is in order to generate wall in dry wall.Wherein, in known C-section bar, sidepiece is located perpendicular to the bottom.
When using this known C-section bar formation dry wall, can obtain sound insulation quality preferably, however, still wish further to improve sound damping.Also should not improve or improve as far as possible among a small circle manufacturing cost simultaneously.
Summary of the invention
Therefore, the objective of the invention is to, further the C-section bar of civilian described type is opened in pursuit of advanced studies, makes and especially improves the sound insulation quality under the situation with low surcharge.
With regard to opening civilian described C-section bar, this purpose is solved by following content, promptly under the no load state of C-section bar, allows the synthetic subtended angle greater than 90 ° of bottom and at least one sidepiece.
In this design, at least one, preferred two sidepieces slightly to extrinsic deflection, can obviously improve sound insulation by this design under the no load state of C-section bar.When the C-section bar was covered by gypsum plank or similar item in installation, the C-section bar can be subjected to load and deform, and the subtended angle between sidepiece and the bottom can be because the power that occurs and reducing once again.Though just so, compare with traditional C-section bar, the partition wall of making still can show improvement aspect sound insulation performance.Advantage according to design of the present invention is, just can improve sound insulation without add ons, and at the manufacture view of C-section bar or only bearing very low fringe cost aspect the installation of partition wall.
According to the present invention preferably allow the bottom and at least one sidepiece between subtended angle under the no load state of C-section bar more than or equal to 91 °, especially more than or equal to 92 °.
Can realize another kind of improvement by following content, promptly allow the subtended angle between bottom and at least one sidepiece under the no load state of C-section bar, be less than or equal to 95 °, especially be less than or equal to 94 °.
Especially preferably allow the subtended angle between bottom and at least one sidepiece be under the no load state of C-section bar between 92.5 ° and 93.5 °, especially preferred is 93 °.
Also further make following setting according to invention, promptly two sidepieces are not provided with under the no load state of C-section bar and synthetic each other angle parallel to each other, and this angle is between 2 ° and 10 °, especially is between 4 ° and 8 °.Wherein, sidepiece away from the distance towards the end of bottom between of the distance between the end of bottom greater than sidepiece.
When sidepiece and bottom form by the sheet metal part of one, make simple especially.
In addition, following content also is preferred, promptly allow sidepiece and bottom each other can be mutually flexibly or elasticity and plastically being out of shape, make sidepiece in installment state with the location that meets at right angles, bottom.Thus can so that sidepiece in installment state elastic deformation under the tension force abut on the cladding plate.
Also can realize the improvement of sound insulation by following content, promptly allow at least one sidepiece have the reinforcing rib that especially outwards protrudes." reinforcing rib " can show good especially sound insulation quality with the associating of " becoming big subtended angle according to the present invention under no load state ".
Simultaneously, following content also is preferred, promptly allows reinforcing rib along vertical distribution of C-section bar and allow it particularly extend on the total length of C-section bar.
In a particularly preferred embodiment of the present invention, the C-section bar has embossing in its surface of at least a portion.By embossing make in metal sheet occur local, especially be the distortion of point-like.A large amount of distortion, every cm for example are set for thus each face unit 2Greater than the distortion at 5 places, perhaps every cm 2Distortion greater than 10 places.
According to the invention thickness of metal sheet can be arranged between 0.3mm and the 3mm, especially between the 0.4mm to 0.6mm.
In addition, the invention still further relates to a kind of partition wall that utilizes aforesaid C-section bar to make.
Description of drawings
Other purpose of the present invention, feature, advantage and applicability are found out can describing from the following embodiment by accompanying drawing.Wherein, feature all descriptions and/or illustrated can form the object of inventing separately or with significant compound mode, and irrelevant with the content or the relative content of single claim.
Wherein:
Shown in Fig. 1 is phantom drawing according to C-section bar of the present invention;
Shown in Fig. 2 is phantom drawing according to another embodiment of C-section bar of the present invention;
Shown in Fig. 3 is phantom drawing according to another embodiment of C-section bar of the present invention;
Shown in Fig. 4 is the cross section of section bar shown in Figure 2;
Shown in Fig. 5 is the cross section that is loaded into partition wall section bar shown in Figure 2 afterwards;
Shown in Fig. 6 is phantom drawing according to another embodiment of C-section bar of the present invention;
Shown in Fig. 7 is the cross section that is loaded into partition wall section bar shown in Figure 6 afterwards.
The specific embodiment
Accompanying drawing show the C- section bar 1,1 that is used for the partition wall that the two sides is capped made by metal sheet ', 1 " different embodiment.Each C- section bar 1,1 ', 1 " have two sidepieces 2 and a bottom 3.
3 substantially flat ground, bottom constitute.In the embodiment shown in Fig. 1 to 3, in the exterior zone of bottom 3, respectively be provided with groove 4 in both sides, groove 4 along C- section bar 1,1 ', 1 " longitudinal extension.Bottom 3 can have unshowned opening, depression or punching.The C- section bar 1,1 here ', the 1 " shape that has elongation.This point also is applicable to bottom 3.In addition, bottom 3 also can have with shown in the different form of pattern.
On vertical side of bottom 3, be provided with a sidepiece 2 respectively.As can in Fig. 4, seeing especially, sidepiece 2 C- section bar 1,1 ', 1 " no load state under with the synthetic subtended angle R greater than 90 ° in bottom 3.Bottom 3 towards measure between the medial surface 5 of sidepiece 2 and the sidepiece 2 subtended angle R preferably between 91 ° and 95 °, wherein be especially reliably between 92 ° and 94 °, particularly between 92.5 ° and 93.5 °.Subtended angle R in a preferred embodiment is 93 °.This moulding makes sidepiece 2 to begin slight outer oblique or open from its link position with respect to bottom 3.
As shown in the figure, sidepiece 2 is not parallel to each other under the no load state of C-section bar but is provided with at an angle to each other.Their synthetic angles are between 2 ° and 10 °, especially are between 4 ° and 8 °.Wherein, sidepiece 2 away from the distance towards the end 7 of bottom 3 between of the distance between the end 6 of bottom 3 greater than sidepiece 2.Wherein, C- section bar 1,1 ', 1 " each sidepiece 2 all with the synthetic same subtended angle R in bottom 3, as top stated, this subtended angle R is greater than 90 °.
C-section bar that one constitutes 1 is made by metal sheet.In manufacture process, implemented sheet metal according to illustrated distortion, particularly allow sidepiece become illustrated shape by bending or cold rolled metal sheet material exactly.Wherein, sidepiece 2 and bottom 3 can be mutually in the workpiece of making flexibly or elasticity and distortion plastically, make that sidepiece can be about the location that meets at right angles, bottom under installment state.
In the embodiment shown, sidepiece 2 have separately C- section bar 1,1 ', 1 " vertical upwardly extending reinforcing rib 8,8 ', 8 ".These reinforcing ribs form by the plastic strain of sheet metal in sidepiece 2 zones.Be respectively equipped with three parallel and extend longitudinally reinforcing ribs 8 in the embodiment shown in fig. 1, they point to inner.Correspondingly in other flat surfaces of sidepiece 2, be shown with the indenture of flute profile or channel shape.In the embodiment shown in Fig. 2 and 3, on each sidepiece 2, be provided with respectively four parallel and along the reinforcing rib 8 of the longitudinal extension of C-section bar ', 8 ", their directed outwards.Wherein, reinforcing rib 8 ', 8 " upper area be formed for the linear or the stripe-shaped bearing surface of cladding plate jointly, these bearing surfaces are in the common plane.Wherein, reinforcing rib 8,8 ', 8 " quantity can change according to various needs.
Also on the outer end 6 of sidepiece, be provided with section 9. in addition to intrinsic deflection
In the embodiment shown in fig. 3, the metal sheet of C-section bar 1 has embossing in its surface.Sheet metal correspondingly be shown with a plurality of parts, particularly put the deformation of shape, these deformation have especially improved the soundness of sheet metal.In addition, " by having the sidepiece 2 of reinforcing rib and/or the combination that embossing constitutes in the diagram " can be with " slight outside open sidepiece 2 under the no load state of C-section bar 1 ", to being intended to have the transfer voice characteristic generation favorable influence of better sound insulation.
Fig. 5 shows and is in the C-section bar according to Fig. 2 of installment state.Can see well, give in order to constitute partition wall 12 C-section bar 1 ' the two sides cover be preferably gypsum plank 10,10 ', 10 " flat board.Wherein, gypsum plank 10,10 ', 10 " be attached to separately C-section bar 1 ' sidepiece 2 on.Because reinforcing rib 8 ' cause, so be shown with the bearing surface that has dwindled therein, reason is, 2 of sidepieces utilize reinforcing rib 8 ' the top be attached to gypsum plank 10,10 ', 10 " on.Wherein, by setting tool 11 gypsum plank 10,10 ', 10 " with sidepiece 2 be fixedly linked and mutually the tension, setting tool 11 is at the current tapping screw that is set as.Wherein, setting tool 11 can be separately reinforcing rib 8 ' between the zone in be connected with sidepiece 2.Below Fig. 5, can also see, two gypsum planks 10 ', 10 " in sidepiece 2 zones, bump each other and connect and utilize setting tool 11 to link to each other separately with sidepiece 2.In addition, partition wall 12 be in gypsum plank 10 and 10 ' and 10 " between the zone in also be provided with do not express be used for sound insulation and/or heat insulation insulation materials.
In installment state, the sidepiece 2 of C-section bar bears load and flexibly or under certain conditions elasticity and plastically distortion from non-loaded position shown in Figure 4.Thus, C-section bar 1 ' no load state under dwindle greater than 90 ° subtended angle R, wherein sidepiece 2 be parallel to gypsum plank 10,10 ', 10 " location.Usually, after installing, because the power that occurs when mounted, so can appear at vertical setting between sidepiece 2 and the bottom 3.
C- section bar 1,1 ', 1 " the thickness of sheet metal especially between 0.3mm and 3mm.Actual proof has advantage especially when thickness is 0.4mm to 0.6mm.For metal sheet, what preferably relate to is that modulus of elasticity is in 196kN/mm 2With 216kN/mm 2Between steel.The tensile strength of metal sheet is between the 270MPa to 500MPa.
Fig. 6 and Fig. 7 show another embodiment, and this embodiment is consistent substantially with the embodiment that Fig. 3 is described.Can quote thus top, correspondingly be applicable to that Fig. 6 and Fig. 7 describe.Wherein, the part identical functions has identical Reference numeral.But, in the embodiment shown in Fig. 6 and 7, only be provided with a groove 4 along C-section bar longitudinal extension among bottom 3, this groove is compared widelyer with groove shown in Figure 3 and is constituted.Can also see well that in Fig. 7 the subtended angle R between sidepiece 2 and the bottom 3 is greater than 90 °.
Reference numeral
1,1 ', 1 " C-section bar
2 sidepieces
3 bottoms
4 grooves
5 medial surfaces
6 outer ends
7 inner ends
8,8 ', 8 " reinforcements
9 sections
10,10 ', 10 " gypsum planks
11 setting tools
12 partition walls
The R subtended angle

Claims (12)

  1. The C-section bar of making by metal sheet (1,1 ', 1 "); be used for the partition wall that the two sides is capped; this section bar has two sidepieces (2) are connected sidepiece (2) with one bottom (3); it is characterized in that; described C-section bar (1,1 ', in the no load state of 1 "), the synthetic subtended angle (R) greater than 90 ° of described bottom (3) and at least one described sidepiece (2).
  2. 2. according to the described C-section bar of claim 1, wherein, the subtended angle (R) between bottom (3) and at least one sidepiece (2) the C-section bar (1,1 ', in the no load state of 1 ") more than or equal to 91 °, especially more than or equal to 92 °.
  3. 3. according to claim 1 or 2 described C-section bars, wherein, the subtended angle (R) between bottom (3) and at least one sidepiece (2) the C-section bar (1,1 ', be less than or equal to 95 ° in the no load state of 1 "), especially be less than or equal to 94 °.
  4. 4. according to the described C-section bar of one of claim 1 to 3, wherein, the subtended angle (R) between bottom (3) and at least one sidepiece (2) the C-section bar (1,1 ', be between 92.5 ° and 93.5 ° in the no load state of 1 "), especially be 93 °.
  5. 5. according to the described C-section bar of one of claim 1 to 4, wherein, two sidepieces (2) the C-section bar (1,1 ', be not provided with in parallel with each other and synthetic mutually angle in the no load state of 1 "), this angle is between 2 ° and 10 °, especially is between 4 ° and 8 °.
  6. 6. according to the described C-section bar of one of claim 1 to 5, wherein, sidepiece (2) forms with the sheet metal elements of bottom (3) by one.
  7. 7. according to the described C-section bar of one of claim 1 to 6, wherein, sidepiece (2) and relative to each other elasticity or elasticity and distortion plastically of bottom (3), make sidepiece (2) under installment state with bottom (2) location that meets at right angles.
  8. 8. according to the described C-section bar of one of claim 1 to 7, wherein, at least one sidepiece (2) have reinforcing rib (8,8 ', 8 "), this reinforcing rib especially outwards protrudes.
  9. 9. according to the described C-section bar of one of claim 1 to 8, wherein, reinforcing rib (8,8 ', 8 ") be distributed in vertically going up of C-section bar (1,1 ', 1 ") and especially the C-section bar (1,1 ', extend on the total length of 1 ").
  10. 10. according to the described C-section bar of one of claim 1 to 9, wherein, the C-section bar (1,1 ', 1 ") have embossing in its at least a portion surface.
  11. 11. according to the described C-section bar of one of claim 1 to 10, wherein, the thickness of metal sheet between 0.3mm and 3mm, especially be 0.4mm to 0.6mm.
  12. 12. utilize according to the described C-section bar of one of aforementioned claim (1,1 ', the partition wall made of 1 ").
CNA2006800107360A 2005-04-07 2006-02-15 C-shaped profile and partition comprising a C-shaped profile Pending CN101151423A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005016176A DE102005016176A1 (en) 2005-04-07 2005-04-07 C-profile and partition with C-profile
DE102005016176.6 2005-04-07

Publications (1)

Publication Number Publication Date
CN101151423A true CN101151423A (en) 2008-03-26

Family

ID=36153570

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2006800107360A Pending CN101151423A (en) 2005-04-07 2006-02-15 C-shaped profile and partition comprising a C-shaped profile

Country Status (12)

Country Link
US (1) US20090038255A1 (en)
EP (1) EP1866492B1 (en)
CN (1) CN101151423A (en)
AU (1) AU2006230983B2 (en)
DE (1) DE102005016176A1 (en)
ES (1) ES2692201T3 (en)
NO (1) NO20075672L (en)
PL (1) PL1866492T3 (en)
PT (1) PT1866492T (en)
RU (1) RU2317378C2 (en)
TR (1) TR201814732T4 (en)
WO (1) WO2006105825A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108699840A (en) * 2016-02-08 2018-10-23 尼提优股份公司 Sandwich structure element with the unlimited cored structure by being formed by the tetrahedron of intensive dress plug

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK176685B1 (en) * 2007-04-23 2009-02-23 Lindab Ab wall framing
EP2356056B1 (en) * 2008-12-18 2012-10-10 Thoma Aufzüge GmbH Shaft frame for a lift system
US8646239B2 (en) 2010-08-04 2014-02-11 John David Rulon Modular building block building system
DE102013106880A1 (en) 2013-07-01 2015-01-08 Saint-Gobain Rigips Gmbh Drywall system for creating partitions, suspended ceilings or the like., Carrier profile for this and use of this drywall system
RU2754687C2 (en) * 2016-06-30 2021-09-06 Кнауф Гипс Кг Plasterboard construction system with spring rail
CN110832150A (en) 2017-05-24 2020-02-21 圣戈班石膏板公司 Corrugated structural element
CA3177493A1 (en) 2020-05-22 2021-11-25 Knauf Gips Kg Dry-construction stud and dry-construction wall with a dry-construction stud
USD1021151S1 (en) 2021-04-26 2024-04-02 Jaimes Industries, Inc. Framing member

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3243930A (en) * 1962-05-29 1966-04-05 Nat Gypsum Co Corrugated sheet metal structural members
DE3315694A1 (en) * 1983-04-29 1984-11-08 Theodor Wuppermann Gmbh, 5090 Leverkusen Grease for a sloping roof skin
NZ210863A (en) * 1985-01-17 1988-03-30 Onteam Ltd Wall frame: interconnected metal studs and plates
US5203132A (en) * 1991-09-17 1993-04-20 Smolik Robert A Wall assembly
US5285615A (en) * 1992-10-26 1994-02-15 Angeles Metal Systems Thermal metallic building stud
US5592796A (en) * 1994-12-09 1997-01-14 Landers; Leroy A. Thermally-improved metallic framing assembly
WO1997036068A1 (en) * 1996-03-22 1997-10-02 John Allan Trenerry Elongate structural member
US6250042B1 (en) * 1996-06-17 2001-06-26 University Of Central Florida Additional metal and wood composite framing members for residential and light commercial construction
FR2786513B1 (en) * 1998-11-27 2001-02-16 Knauf THIN SIDING WALL WITH IMPROVED ACOUSTIC PROPERTIES
DE10013991C1 (en) * 2000-01-14 2001-04-05 Richter System Gmbh & Co Kg C-profile for dividing walls has parallel beadings at the side flanges against the wall sections and a profile base which is smooth or beaded to give a membrane effect to prevent noise transmission
DE10215097A1 (en) * 2002-04-05 2003-10-30 Knauf Westdeutsche Gips Elastified dividing wall construction has fastening sections which with base section each include obtuse angle of more than 90 degrees so that by fastening sections in panelled state an elastic spring unit is defined
US20060096200A1 (en) * 2004-11-05 2006-05-11 Daudet Larry R Building construction components
US7594331B2 (en) * 2005-11-05 2009-09-29 Wiltin Pty. Ltd. Method of production of joining profiles for structural members
USD618365S1 (en) * 2009-06-18 2010-06-22 James Crane Reinforced steel stud

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108699840A (en) * 2016-02-08 2018-10-23 尼提优股份公司 Sandwich structure element with the unlimited cored structure by being formed by the tetrahedron of intensive dress plug

Also Published As

Publication number Publication date
AU2006230983B2 (en) 2011-05-12
EP1866492A1 (en) 2007-12-19
RU2317378C2 (en) 2008-02-20
RU2005124564A (en) 2007-02-10
PL1866492T3 (en) 2018-12-31
NO20075672L (en) 2007-11-06
WO2006105825A1 (en) 2006-10-12
PT1866492T (en) 2018-11-08
TR201814732T4 (en) 2018-11-21
EP1866492B1 (en) 2018-07-25
AU2006230983A1 (en) 2006-10-12
ES2692201T3 (en) 2018-11-30
DE102005016176A1 (en) 2006-10-12
US20090038255A1 (en) 2009-02-12

Similar Documents

Publication Publication Date Title
CN101151423A (en) C-shaped profile and partition comprising a C-shaped profile
CN101151426B (en) C-shaped profile
CN102414049B (en) Bumper structure
US10576920B2 (en) Vehicle body structure
CN107530752B (en) Manufacturing method, punch forming part and the stamping device of punch forming part
US20050116498A1 (en) Mounting structure of bumper beam
CN101600601B (en) Impact absorption member
CA2874078C (en) Vehicle frame member structure with excellent impact resistance performance
CN102695836B (en) Clip connection
US9751478B2 (en) Bumper reinforcement
EP2311712B1 (en) Plate-like body
CN101628590B (en) Joggling type vehicle bottom plate assembly
CN204567781U (en) A kind of automobile top-cap assembly and automobile
KR20200071648A (en) Frame member and formwork frame using the same
Zhang et al. Improvement of mechanical properties of wood-plastic composite floors based on the optimum structural design
KR101369962B1 (en) Panel mounting structure and panel mounting method
CA2844955A1 (en) Structural element for heat-insulating purposes
JP5667801B2 (en) Board wall
JP4855096B2 (en) Soundproof panel for construction
CN212743125U (en) Energy-concerving and environment-protective type concrete prefabrication sandwich exterior wall plate structure
KR102115029B1 (en) Section shape steel of high-rigidity
JP7288179B2 (en) Joint structure
KR20100092653A (en) Combined shape steel for construction
KR20100131817A (en) Automotive bumper beam unit
CN201013050Y (en) X-shaped engineering force-bearing component

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20080326