US3824664A - Cladding sheets - Google Patents
Cladding sheets Download PDFInfo
- Publication number
- US3824664A US3824664A US00423764A US42376473A US3824664A US 3824664 A US3824664 A US 3824664A US 00423764 A US00423764 A US 00423764A US 42376473 A US42376473 A US 42376473A US 3824664 A US3824664 A US 3824664A
- Authority
- US
- United States
- Prior art keywords
- sheet
- corrugations
- formations
- rib
- bending
- 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
Links
- 238000005253 cladding Methods 0.000 title claims abstract description 15
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 98
- 238000005755 formation reaction Methods 0.000 claims abstract description 98
- 238000005452 bending Methods 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims abstract description 32
- 239000002184 metal Substances 0.000 claims abstract description 10
- 238000003825 pressing Methods 0.000 claims description 13
- 230000013011 mating Effects 0.000 claims description 9
- 238000005304 joining Methods 0.000 claims description 7
- 230000007423 decrease Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 description 5
- 230000000295 complement effect Effects 0.000 description 3
- 238000007373 indentation Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/08—Bending by altering the thickness of part of the cross-section of the work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/20—Bending sheet metal, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/20—Bending sheet metal, not otherwise provided for
- B21D11/206—Curving corrugated sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D13/00—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
- B21D13/10—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form into a peculiar profiling shape
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/1241—Nonplanar uniform thickness or nonlinear uniform diameter [e.g., L-shape]
- Y10T428/12417—Intersecting corrugating or dimples not in a single line [e.g., waffle form, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12785—Group IIB metal-base component
- Y10T428/12792—Zn-base component
- Y10T428/12799—Next to Fe-base component [e.g., galvanized]
Definitions
- a method of bending a corrugated sheet about an axis extending at right angles to the corrugations wherein a plurality of rib formations are pressed in those corrugations having their apices nearest the axis, the rib formations allprojecting from the same surface of the sheet relative to the axis and extending at an angle to the corrugations over at least part of the side portions and at least part of the intermediate portions of the corrugations.
- the corrugated sheet comprises a metal cladding sheet.
- a corrugated sheet bent about an axis extending at right angles to the corrugations including a plurality of rib formations projecting from the same surface of the sheet when viewed from the axis, the rib formations being at an angle to the corrugations and extending over at least part of the side portions and at least part of the intermediate portions of the corrugations.
- This invention relates to metal cladding sheets and particularly to the bending of corrugated metal cladding sheets.
- corrugated sheet includes a'sheet of sinusoidal, rectangular, trapezoidal or ribbed corrugated cross-sectional configuration and a corrugation is considered to comprise a pair of spaced side portions and an intermediate portion extending between the side portions.
- the same corrugation hence defines a valley when viewed from one side of the sheet and a peak or raised formation when viewed from the opposite side of the sheet.
- Adjacent corrugations hence have a side portion in common.
- the intermediate portion is considered to be located in the zone of the apex of the valley or peak.
- apex is meant to refer to the uppermost or lowermost part of the peak or valley respectively.
- Corrugated metal cladding sheets are normally provided in planar lengths but it is frequently desirable to bend such sheets into curved forms of predetermined radii of curvature to meet particular requirements.
- a method of bending a corrugated sheet as herein defined about an axis extending at right angles to the corrugations includes the step of pressing in those corrugations having their apices nearest the axis a plurality of rib formations projecting from the same surface of the sheet relative to the axis, the rib formations being at an angle to the corrugations and extending over at least part of the side portions at at least part of the intermediate portions of the corrugations.
- the rib formations are in rows, each row being formed in one operation which is repeated at spaced intervals along the .sheet in a direction parallel to the corrugations to give the desired degree of bending.
- the rib formations may be in rows with a plurality of rows being formed in one operation which is repeated at spaced intervals along the sheet in a direction parallel to the corrugations to give the desired degree of bending.
- the rib formations on the side portions in the direction away from the intermediate portions decrease in width and in height relative to the surface from which they project.
- the rib formations are pressed to project from the surface on the other side of the sheet when viewed from the axis.
- the rib formations are preferably discontinued over at least part of the intermediate portions to define a drainage channel.
- the rib formations extend at right angles to the corrugations.
- the method includes the step of feeding the sheet in a direction parallel to its corrugations between a pair of mating die members adapted to press the rib formations in the corrugations.
- the method may also be employed to bend an uncorrugated metal cladding sheet about an axis by, providing the sheet with a plurality of corrugations as herein defined extending at right angles to the axis and pressing in those corrugations having their apices nearest the axis, a'plurality of rib formations projecting from the same surface of the sheet when viewed from the axis, the rib formations being at an angle to the corrugations and extending over at least part of theside portions and at least part of the intermediate portions of the corrugations.
- the invention includes within its scope a bent corrugated sheet made in accordance with the aforesaid method.
- FIG. 1 shows in cross-section part of a corrugated sheet of metal cladding material to be bent
- FIG. 2 is a similar view as that of FIG. 1 showing the sheet after bending;
- FIG. 3 is a perspective view showing part of the sheet of FIG. 1 in more detail
- F IG. 4 shows in cross-section a pair of mating die formations suitable for bending a sheet such as that of FIG. 1;
- FIG. 5 shows in cross-section part of a corrugated sheet of metal cladding material of different configuration to that of the sheet of FIG. 1 after bending;
- FIG. 6 is a perspective view showing part of the sheet of FIG. 5 in more detail.
- rib formations 8 which are of substantially triangular configuration in cross-section, project from the same surface of sheet 1 relative to the axis of curvature. Furthermore that portion of formation 8 which extends along side portions 4 decreases in a direction away from intermediate portion 5 in width andin height relative to thesur'face from which they are pressed.
- sheet 1 is curved according to known principles in the longitudinal direction about an axis extending at right angles to corrugations 2 as shown in FIG. 3.
- each formation 8 is continuous in the zone 13 where side portions 4 and intermediate portions 5 meet the formation of the aforesaid line of weakness found with the conventional arrangements is avoided or at least minimized.
- the operative face of die member 7 which includes a plurality of spaced raised formations 9 each adapted to engage adjacent corrugations 2 of a sheet 1 located above it, is provided with upstanding formations 10 extending between adjacent raised formations 9. Formations 10 are of complementary configuration to the formations 8 to be pressed on sheet 1.
- Each formation 10 is discontinued along its central portion to define an indentation 11 allowing for a centrally located longitudinally extending groove 12 to be pressed in intermediate portion 5 of sheet 1.
- Groove 12 serves the purpose of a drainage channel in sheet 1.
- the operative face of die member 6 is of complementary configuration to that of member 7.
- Members 6 and 7 are adapted to be mounted on a press in a conventional manner to define a nipping zone between them in which a sheet such as sheet 1 may pass to be formed between the co-acting members 6 and 7 as they close on each other.
- members 6 and 7 may be provided with a single row of formations 10 to be able to press a single row of formations 8 at a time on sheet 1 or it may be provided with a plurality of parallel spaced formations 10 to be able to press a plurality of rows of formations 8 at a time on sheet 1.
- the radius of curvature for bending sheet 1 may be varied by varying the distance separating adjacent formations 8 thereon.
- the sheet 1 shown in FIGS. 5 and 6, which is of different cross-sectional configuration to that of the previous figures, may be similarly bent by forming a plurality of rib formations 8 thereon in a similar manner. It will beappreciated that the mating die membersemployed for bending this sheet will have operative faces complementary in configuration to that of the sheet to be bent.
- the invention also includes within its scope apparatus for bending a sheet substantially as herein described.
- the invention also includes within its scope sheets when bent according to any of the aforesaid methods.
- cladding material has been used in this specification to include roofing sheets and the like it is to be understood that the use of the product for reservoirs, storage drums, sheds, vehicle canopies or other structures of a similar nature are to be included in the scope of this invention and the term cladding material.
- a method of bending a corrugated sheet according to claim 1, wherein the pressing of rib formations into the sheet comprises the steps of:
- a method of bending a corrugated sheet according to claim 1, comprising forming the rib formations in rows, each row being formed in one operation and extending across the entire sheet, and repeatedly forming said rows at spaced intervals along the sheet in a direction parallel to the corrugations to give the desired degree of bending.
- a method of bending a corrugated sheet according to claim 1, comprising pressing the rib formations so as to project from the sheet surfaceon that side of the sheet opposite the axis.
- a method of bending a corrugated sheet according to claim 1, comprising forming the rib formations so as to extend at right angles to the corrugations.
- a method of bending a corrugated sheet according to claim 1, comprising forming the rib'formation in the side portion of each corrugation and in each intermediate portion, so as to be continuous at least over that area where two adjacent side and intermediate portions meet.
- a continuous corrugated sheet having a plurality of corrugations each having a pair of side portions joining at an apex running longitudinally with the corrugation and having intermediate portions connecting the side portions of adjacent corrugations, said sheet being curved about an axis extending at right angles to the corrugations, and including a plurality of rib formations formed therein and projecting from the same surface of the sheet when viewed from the axis, each rib formation being at an angle to the corrugations and continuously extending over at least part of each side portion and at least part of each intermediate portion.
- a method of bending a metal cladding sheet about an axis comprising:
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
Description
Claims (15)
- 2. A method of bending a corrugated sheet according to claim 1, wherein the pressing of rib formations into the sheet comprises the steps of: a. providing a first die member having a generally planar base, raised formations projecting from said base and spaced and contoured for general mating engagement with the wall surfaces within said cavities, and upstanding formations projecting from said base and extending between adjacent ones of said raised formations; b. causing said first die member to operatively engage said corrugated sheet on one side thereof such that spaced raised formations are inserted within said plurality of cavities and engage the inside walls thereof and such that said upstanding formations are in engagement with those corrugations having their apices nearest said axis; c. causing a second die member of geometric configuration complimentary to said first die member to operatively engage said corrugated sheet in exact opposing relationship to said first die member such that said sheet is sandwiched therebetween; and d. forcing said first and second die members toward mating engagement with one another with said corrugated sheet sandwiched therebetween such that said raised spaced formations and said upstanding formations impress said plurality of rib formation into said sheet.
- 3. A method of bending a corrugated sheet according to claim 1, comprising forming the rib formations in rows, each row being formed in one operation and extending across the entire sheet, and repeatedly forming said rows at spaced intervals along the sheet in a direction parallel to the corrugations to give the desired degree of bending.
- 4. A method of bending a corrugated sheet according to claim 1, comprising forming the rib formations in rows extending across the entire sheet, with a plurality of said rows being formed in one operation, and repeatedly forming said plurality of rows at spaced intervals along the sheet in a direction parallel to the corrugations to give the desired degree of bending.
- 5. A method of bending a corrugated sheet according to claim 1, comprising pressing into the side portions said rib formations which decrease in width and in height relative to the surface from which they project and in the direction away from the intermediate portions.
- 6. A method of bending a corrugated sheet according to claim 1, comprising pressing the rib formations so as to project from the sheet surface on that side of the sheet opposite the axis.
- 7. A method of bending a corrugated sheet according to claim 1, comprising discontinuing formation of the rib formations over at least part of the intermediate portions of the sheet, to define a drainage channel.
- 8. A method of bending a corrugated sheet according to claim 1, comprising forming the rib formations so as to extend at right angles to the corrugations.
- 9. A method of bending a corrugated sheet according to claim 1, including the step of feeding the sheet in a direction parallel to its corrugations between a pair of mating die members adapted to press the rib formations in the corrugations.
- 10. A method of bending a corrugated sheet according to claim 1, comprising forming the rib formation in the side portion of each corrugation and in each intermediate portion, so as to be continuous at least over that area where two adjacent side and intermediate portions meet.
- 11. A method of bending a narrOw ribbed sheet having a plurality of narrow rib corrugations longitudinally extending at least over that area of the sheet to be bent, each narrow rib corrugation having a pair of side portions joining at an apex and said sheet having intermediate portions continuously connecting adjacent side portions of different ones of said corrugations, said method being operable to bend the corrugated narrow ribbed sheet about an axis extending at right angles to the corrugations and positioned opposite that side of said sheet from which said narrow rib corrugation apices project, comprising: pressing, by means of a tool operating within the cavities defined by said joined side portions of those narrow ribbed corrugations having their apices furthest away from the axis, a plurality of rib formations into said side portions of the narrow rib corrugations and into said intermediate portions of the narrow rib corrugations so as to project the pressed rib formations from the same surface of the sheet relative to the axis, and at an angle to the corrugations and continuously extending over at least part of each side portion and over at least part of each intermediate portion.
- 12. A continuous corrugated sheet having a plurality of corrugations each having a pair of side portions joining at an apex running longitudinally with the corrugation and having intermediate portions connecting the side portions of adjacent corrugations, said sheet being curved about an axis extending at right angles to the corrugations, and including a plurality of rib formations formed therein and projecting from the same surface of the sheet when viewed from the axis, each rib formation being at an angle to the corrugations and continuously extending over at least part of each side portion and at least part of each intermediate portion.
- 13. A continuous corrugated sheet according to claim 9, wherein the rib formations in the side portions of the corrugations, and in the direction away from the intermediate portions of the sheet, decrease in width and in height relative to the surfaces from which they project.
- 14. A continuous corrugated sheet according to claim 9, wherein the rib formations are discontinuous over at least part of the intermediate portions to define a drainage channel.
- 15. A continuous corrugated sheet according to claim 9, wherein the rib formations extend at right angles to the corrugations.
- 16. A method of bending a metal cladding sheet about an axis comprising: a. providing the sheet with a plurality of corrugations longitudinally extending at right angles to a bending axis, each corrugation having a pair of side portions joining at an apex, with intermediate portions of the sheet connecting adjacent side portions of different ones of said corrugations; and b. pressing into those corrugations having their apices nearest the axis, a plurality of rib formations so as to project the rib formations from the same surface of the sheet relative to the axis, and at an angle to the corrugations and continuously extending over at least part of each side portion and at least part of each intermediate portion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00423764A US3824664A (en) | 1972-03-29 | 1973-12-11 | Cladding sheets |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US23916672A | 1972-03-29 | 1972-03-29 | |
US00423764A US3824664A (en) | 1972-03-29 | 1973-12-11 | Cladding sheets |
Publications (1)
Publication Number | Publication Date |
---|---|
US3824664A true US3824664A (en) | 1974-07-23 |
Family
ID=26932340
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00423764A Expired - Lifetime US3824664A (en) | 1972-03-29 | 1973-12-11 | Cladding sheets |
Country Status (1)
Country | Link |
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US (1) | US3824664A (en) |
Cited By (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USB421975I5 (en) * | 1973-12-05 | 1976-03-02 | ||
US4109503A (en) * | 1976-02-02 | 1978-08-29 | Jean Francon | Method for manufacturing metallic ribs on sheet stock |
US4195511A (en) * | 1977-06-17 | 1980-04-01 | Korstrask Mekaniska, G. Naslund | Apparatus for bending section-sheet, plate strip and the like |
US4220031A (en) * | 1975-12-18 | 1980-09-02 | Groko Maskin Ab | Method for bending section-sheet, plate strip and like material |
US4276873A (en) * | 1979-06-25 | 1981-07-07 | Alpha Solarco Inc. | Reflectors for solar energy collectors |
US4380573A (en) * | 1977-06-17 | 1983-04-19 | Korstrask Mekaniska, G. Naslund | Method and device for bending section-sheet, plate, strip and like material |
US4455806A (en) * | 1978-06-12 | 1984-06-26 | Rice Donald W | Structural building member |
US4562678A (en) * | 1984-01-26 | 1986-01-07 | North American Agricultural, Inc. | Grain bin flooring |
US4580433A (en) * | 1980-03-04 | 1986-04-08 | Groko Maskin Ab | Method of bending shaped metal sheet and apparatus for carrying out the method |
US4744603A (en) * | 1986-04-10 | 1988-05-17 | Steelcase Inc. | Chair shell with selective back stiffening |
WO1996041691A1 (en) * | 1995-06-10 | 1996-12-27 | Metsec Plc | Metal strip |
US5600928A (en) * | 1995-07-27 | 1997-02-11 | Uc Industries, Inc. | Roof vent panel |
WO1999014110A1 (en) | 1997-09-12 | 1999-03-25 | Ocean Innovations, Inc. | Floating drive-on dry dock assembly having a supporting beam |
US20050082297A1 (en) * | 2003-10-16 | 2005-04-21 | Gaz Transport Et Technigaz | Sealed wall structure and tank furnished with such a structure |
US6945002B2 (en) * | 2000-02-18 | 2005-09-20 | Sergio Zambelli | Reinforcement for prefabricated concrete panels with improved bonding to concrete |
US20060105699A1 (en) * | 2004-03-29 | 2006-05-18 | Brentwood Industries, Inc. | Vent baffle and perforation machine |
US20100012669A1 (en) * | 2008-07-15 | 2010-01-21 | Delta Consolidated Industries | Panels for a Container Joint Including a Three Dimensional Pattern on a Portion Thereof and Methods of Forming Same |
US20120047778A1 (en) * | 2010-08-25 | 2012-03-01 | Rigoberto Hernandez | Device And System For Excavating And Backfilling Soil |
US20130171924A1 (en) * | 2008-12-17 | 2013-07-04 | Genpak Llc | Vent baffles |
US20130189537A1 (en) * | 2012-01-24 | 2013-07-25 | Panasonic Corporation | Chassis for electronic apparatus |
US20140360119A1 (en) * | 2009-07-23 | 2014-12-11 | Robert M.M. Haddock | Roof framing structure using triangular structural framing |
CN104646466A (en) * | 2015-02-11 | 2015-05-27 | 上海交通大学 | Composite bending and forming process for non-equal-height cross-shaped rib type pieces |
US9109352B1 (en) | 2014-03-14 | 2015-08-18 | Gary A. Knudson | Metal building system |
US20180251962A1 (en) * | 2017-03-06 | 2018-09-06 | Kevin J. Levesque | Meter Pit And Method Of Manufacturing The Same |
US10443896B2 (en) | 2016-07-29 | 2019-10-15 | Rmh Tech Llc | Trapezoidal rib mounting bracket with flexible legs |
US10502457B2 (en) | 2010-03-03 | 2019-12-10 | Robert M. M. Haddock | Photovoltaic module mounting assembly |
US10634175B2 (en) | 2011-12-29 | 2020-04-28 | Rmh Tech Llc | Mounting device for nail strip panels |
US10640980B2 (en) | 2016-10-31 | 2020-05-05 | Rmh Tech Llc | Metal panel electrical bonding clip |
US10731355B2 (en) | 2011-02-25 | 2020-08-04 | Rmh Tech Llc | Mounting device for building surfaces having elongated mounting slot |
US10903785B2 (en) | 2018-03-21 | 2021-01-26 | Rmh Tech Llc | PV module mounting assembly with clamp/standoff arrangement |
US10948002B2 (en) | 2018-12-14 | 2021-03-16 | Rmh Tech Llc | Mounting device for nail strip panels |
US11041310B1 (en) | 2020-03-17 | 2021-06-22 | Rmh Tech Llc | Mounting device for controlling uplift of a metal roof |
US11352793B2 (en) | 2020-03-16 | 2022-06-07 | Rmh Tech Llc | Mounting device for a metal roof |
US11774143B2 (en) | 2017-10-09 | 2023-10-03 | Rmh Tech Llc | Rail assembly with invertible side-mount adapter for direct and indirect mounting applications |
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US2370702A (en) * | 1939-03-22 | 1945-03-06 | Bertha L Yoder | Machine for crimping sheet metal |
US2775284A (en) * | 1953-01-21 | 1956-12-25 | Inland Steel Products Company | Machine for making arched panel sheets |
US3059733A (en) * | 1955-07-13 | 1962-10-23 | Peter S Pedersen | Reinforced panel sheets |
US3111788A (en) * | 1960-07-18 | 1963-11-26 | Ouellet Paul | Roof panel |
US3395438A (en) * | 1964-10-21 | 1968-08-06 | Steel Rolling Corp Africa Prop | Metal corrugated roofing sheets |
US3664170A (en) * | 1970-03-16 | 1972-05-23 | Pacific Roller Die Co Inc | Curving method and apparatus for ridged sheet material |
-
1973
- 1973-12-11 US US00423764A patent/US3824664A/en not_active Expired - Lifetime
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US2370702A (en) * | 1939-03-22 | 1945-03-06 | Bertha L Yoder | Machine for crimping sheet metal |
US2775284A (en) * | 1953-01-21 | 1956-12-25 | Inland Steel Products Company | Machine for making arched panel sheets |
US3059733A (en) * | 1955-07-13 | 1962-10-23 | Peter S Pedersen | Reinforced panel sheets |
US3111788A (en) * | 1960-07-18 | 1963-11-26 | Ouellet Paul | Roof panel |
US3395438A (en) * | 1964-10-21 | 1968-08-06 | Steel Rolling Corp Africa Prop | Metal corrugated roofing sheets |
US3664170A (en) * | 1970-03-16 | 1972-05-23 | Pacific Roller Die Co Inc | Curving method and apparatus for ridged sheet material |
Cited By (56)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3994693A (en) * | 1973-12-05 | 1976-11-30 | Lockheed Missiles & Space Company, Inc. | Expandable metal membrane |
USB421975I5 (en) * | 1973-12-05 | 1976-03-02 | ||
US4220031A (en) * | 1975-12-18 | 1980-09-02 | Groko Maskin Ab | Method for bending section-sheet, plate strip and like material |
US4109503A (en) * | 1976-02-02 | 1978-08-29 | Jean Francon | Method for manufacturing metallic ribs on sheet stock |
US4380573A (en) * | 1977-06-17 | 1983-04-19 | Korstrask Mekaniska, G. Naslund | Method and device for bending section-sheet, plate, strip and like material |
US4195511A (en) * | 1977-06-17 | 1980-04-01 | Korstrask Mekaniska, G. Naslund | Apparatus for bending section-sheet, plate strip and the like |
US4455806A (en) * | 1978-06-12 | 1984-06-26 | Rice Donald W | Structural building member |
US4276873A (en) * | 1979-06-25 | 1981-07-07 | Alpha Solarco Inc. | Reflectors for solar energy collectors |
US4580433A (en) * | 1980-03-04 | 1986-04-08 | Groko Maskin Ab | Method of bending shaped metal sheet and apparatus for carrying out the method |
US4562678A (en) * | 1984-01-26 | 1986-01-07 | North American Agricultural, Inc. | Grain bin flooring |
US4744603A (en) * | 1986-04-10 | 1988-05-17 | Steelcase Inc. | Chair shell with selective back stiffening |
US5611598A (en) * | 1986-04-10 | 1997-03-18 | Steelcase Inc. | Chair having back shell with selective stiffening |
WO1996041691A1 (en) * | 1995-06-10 | 1996-12-27 | Metsec Plc | Metal strip |
US5600928A (en) * | 1995-07-27 | 1997-02-11 | Uc Industries, Inc. | Roof vent panel |
WO1999014110A1 (en) | 1997-09-12 | 1999-03-25 | Ocean Innovations, Inc. | Floating drive-on dry dock assembly having a supporting beam |
US6945002B2 (en) * | 2000-02-18 | 2005-09-20 | Sergio Zambelli | Reinforcement for prefabricated concrete panels with improved bonding to concrete |
US7540395B2 (en) * | 2003-10-16 | 2009-06-02 | Gaz Transport Et Technigaz | Sealed wall structure and tank furnished with such a structure |
US20050082297A1 (en) * | 2003-10-16 | 2005-04-21 | Gaz Transport Et Technigaz | Sealed wall structure and tank furnished with such a structure |
US20060105699A1 (en) * | 2004-03-29 | 2006-05-18 | Brentwood Industries, Inc. | Vent baffle and perforation machine |
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