US20110173912A1 - Extruded cylinder with a solid wood exterior shell - Google Patents
Extruded cylinder with a solid wood exterior shell Download PDFInfo
- Publication number
- US20110173912A1 US20110173912A1 US13/075,336 US201113075336A US2011173912A1 US 20110173912 A1 US20110173912 A1 US 20110173912A1 US 201113075336 A US201113075336 A US 201113075336A US 2011173912 A1 US2011173912 A1 US 2011173912A1
- Authority
- US
- United States
- Prior art keywords
- staves
- core
- wood
- shell
- extruded
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/04—Kinds or types
- B65H75/08—Kinds or types of circular or polygonal cross-section
- B65H75/10—Kinds or types of circular or polygonal cross-section without flanges, e.g. cop tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/50—Methods of making reels, bobbins, cop tubes, or the like by working an unspecified material, or several materials
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/12—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/50—Storage means for webs, tapes, or filamentary material
- B65H2701/51—Cores or reels characterised by the material
- B65H2701/513—Cores or reels characterised by the material assembled mainly from rigid elements of the same kind
- B65H2701/5132—Wooden planks or similar material
-
- 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
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1089—Methods of surface bonding and/or assembly therefor of discrete laminae to single face of additional lamina
Definitions
- the invention relates to a structural core or bolt, and more particularly, to an extruded wood fiber core with an applied solid wood exterior shell.
- Wood fiber cores have been used in applications utilized for winding or spooling industrial products. Extruded wood fiber cores, such as those manufactured by the assignee since the mid 1960's, have been suitable for applications where low cost is valued, and where durability is not essential. Wood fiber cores have excellent compressive strength in the axial direction, but only moderate or poor tensile strength in the transverse direction. Such fiber cores may be extruded or molded. Wood fiber cores are typically limited to single use as they lack beam strength, and unwinding of materials from the core can produce cracks, fissures or other structural defects rendering them inoperative.
- Solid wood cores are manufactured using labor intensive machining of lumber, gluing, clamping and various steps. While more expensive than extruded core, the solid wood provides improved structural integrity for heavier materials or multiple use applications. Such solid wood cores are of particular value in intracompany uses. Such solid wood cores have improved beam strength.
- the steel cores are highly durable, but require expensive fabrication and welding, are heavy, and are expensive to ship.
- One embodiment of the present invention provides a method for the production of structural cores with a solid wood exterior, the method comprising: providing a extruded wood core column; providing a plurality of solid wood staves having an interior profile mating an exterior profile of the extruded wood column; applying an adhesive to the interior profile of the staves and the exterior profile of the core; adhering the interior profile of each of the staves to the exterior profile of the core; mechanically securing the staves to the core; allowing the adhesive to cure providing a structural core with a solid wood exterior.
- Another embodiment of the present invention provides such a method further comprising placing at least one steel band about an end of the structural core with the solid wood exterior and embedding the band in the solid wood exterior.
- a further embodiment of the present invention provides such a method further comprising disposing at least one end cap on an end of the structural core with the solid wood exterior and crimping the end cap to secure it to the structural core with the solid wood exterior.
- Yet another embodiment of the present invention provides such a method wherein the step of mechanically securing comprises nailing the staves to the extruded core.
- a yet further embodiment of the present invention provides such a method wherein the step of mechanically securing comprises clamping the staves to the extruded core.
- Still another embodiment of the present invention provides such a method further comprising machining the staves from wood of a variety selected from the group of wood varieties consisting of poplar, oak, ash, maple, mahogany, and walnut.
- a still further embodiment of the present invention provides such a method wherein the wood is an exotic species of wood.
- Yet another embodiment of the present invention provides such a method further comprising fluting the staves.
- An even further embodiment of the present invention provides such a method further comprising shaping the staves such that the solid wood exterior is tapered.
- Still yet another embodiment of the present invention provides such a method wherein the solid wood exterior comprises a parabolic frustrum.
- One embodiment of the present invention provides a structural unit; the structural unit comprising: a extruded core comprising wood fiber and a thermoset resin having a central hole coaxial with a major axis of the core and an exterior; a plurality of shaped staves forming a shell, each stave of the plurality of staves disposed about the exterior of the core and parallel to the major axis.
- Another embodiment of the present invention provides such a structural unit further comprising at least one slot disposed in at least one the stave is provided parallel to the axis.
- a further embodiment of the present invention provides such a structural unit wherein the plurality of staves form a cylindrical shell around the core.
- Yet another embodiment of the present invention provides such a structural unit wherein shell has groves where the staves meet.
- a yet further embodiment of the present invention provides such a structural unit wherein the staves are manufactured from a wood, the wood being of a wood species selected from the group of species consisting of poplar, pine, oak, mahogany and walnut.
- Still another embodiment of the present invention provides such a structural unit wherein the staves are tapered, such that the staves form a smooth, longitudinally tapered shell around the core.
- a still further embodiment of the present invention provides such a structural unit, wherein the shell is fluted.
- FIG. 1 is a perspective drawing illustrating an extruded core cylinder with a solid wood shell configured in accordance with one embodiment of the present invention.
- FIG. 2A is a top plan view drawing illustrating a smooth stave of an extruded core cylinder with a solid wood shell configured in accordance with one embodiment of the present invention.
- FIG. 2B is an elevation view drawing illustrating a smooth stave of an extruded core cylinder with a solid wood shell configured in accordance with one embodiment of the present invention.
- FIG. 2C is a bottom plan view drawing illustrating smooth stave of an extruded core cylinder with a solid wood shell configured in accordance with one embodiment of the present invention.
- FIG. 3A is a top plan view drawing illustrating a fluted stave of an extruded core cylinder with a solid wood shell configured in accordance with one embodiment of the present invention.
- FIG. 3B is an elevation view drawing illustrating a fluted stave of an extruded core cylinder with a solid wood shell configured in accordance with one embodiment of the present invention.
- FIG. 3C is a bottom plan view drawing illustrating a fluted stave of an extruded core cylinder with a solid wood shell configured in accordance with one embodiment of the present invention.
- FIG. 4 is a cross sectional plan view illustrating an extruded core cylinder with a solid wood shell configured in accordance with one embodiment of the present invention and having a spiraled cross section.
- FIG. 5 is a cross sectional plan view illustrating an extruded core cylinder with a solid wood shell configured in accordance with one embodiment of the present invention and having retention slots disposed in the solid wood shell.
- FIG. 6 is an elevation view illustrating an extruded core cylinder with a solid wood shell configured in accordance with one embodiment of the present invention having a retention slot.
- FIG. 7 is a perspective view illustrating an extruded core cylinder for sheathing with a solid wood shell configured in accordance with one embodiment of the present invention.
- FIG. 8 is an elevation view illustrating an extruded core cylinder with a solid wood shell configured in accordance with one embodiment of the present invention undergoing clamping.
- a cylinder 12 of extruded wood fiber disposed in a resin matrix is provided by one embodiment of the present invention.
- the extruded core 12 is covered in a shell 18 of wooden staves 14 .
- each stave 14 covers one eighth of the circumference of the extruded core 12 .
- Staves 14 are glued to the exterior of the extruded core 12 . Nails may be used to affix the staves 14 to the core 12 while the glue cures, and may add additional strength to the bond between the staves 14 and the core 12 .
- staves 14 may be clamped to the core 12 to insure proper curing of the adhesive manually, using pipe clamps or other suitable hand clamp with a circular pressure ring, or may be clamped using a automated device whereby pressure is applied to the circumference of the stave shell.
- pneumatic pressure may be applied, such as by an air choke.
- Air Flex® clutch break single and double flange elements part no. 142197JA sold by Eaton Corporation may be used.
- a central extruded bore 16 is provided through the core 12 to permit the introduction of shafts or other mounting means as necessary. Staves 14 are illustrated in greater detail in FIGS. 2A-3C .
- a slot 22 may be machined in one or more of the staves to allow the introduction of a tongue or anchor into the roll so as to facilitate the anchorage of the material to be wound upon the roller to the roller.
- Alternative retention means including a spiraled cross section and a plurality of retention slots are illustrated in FIGS. 4 and 5 , respectively.
- end cap may be placed over each of the ends of a completed composite core thereby providing improved radial strength.
- Such caps are known to those skilled in the art and are used with known solid wood cores. In alternative embodiments where such strength is unimportant, such an endcap is unnecessary.
- the staves 14 may be configured with an exterior profile such that when each stave 14 is applied to the core 12 such that the elongate length of the stave 14 is parallel to the axis of the core 12 , the exterior profile of the stave is rounded to form an arc, and the arcs of the eight staves combine to form a circular cross section.
- the staves may be machined prior to application to provide a suitable taper to the column, as illustrated in FIGS. 2A-2C , or in some embodiments fluting as illustrated in FIGS. 3A-3C . Such a taper may be obtained by applying a “shoe” to the stave during machining.
- the staves may be applied to the core without nails, so as to avoid marring the surface of the lumber; alternatively an additional step may be employed wherein nail holes are filled with wood putty prior to sanding and finishing.
- suitable capitals or other ornamental end pieces may be applied.
- each stave 14 in one embodiment is curved to provide optimum contact with the exterior surface of an extruded core having a circular cross section.
- staves may comprise eight staves disposed about the circumference of the extruded core, while in alternative embodiments; different numbers of staves may be employed.
- various cross-sectional shapes may be imparted to the extruded cores.
- staves with flat interior sides may be provided. In such embodiments same number of staves as of sides may be used.
- staves may be milled to match the profile of the extruded core. It is noted, however, that polygonal cross sections can reduce the waist rate of the milled staves as the milled stave need only be milled on the exterior.
- Wood used in the construction of staves may, in one embodiment be wood from trees of the genus Populus. Other inexpensive, easily milled, woods may be used. The density of the wood may likewise be selected based upon factors including the desired durability of the unit produced, the weight and strength requirements, and a need for relative flexibility may be considered. Other suitable woods may include softwoods such as pine or hardwoods such as oak or maple. Exotic species, like mahogany, rosewood, and teak may also be used in applications where the esthetics of the finished piece require such woods.
- Glues used in the adhesion of the staves to the core are chemically and structurally compatible with the resins used in the core. Degradation of the core could compromise strength of the system.
- wood glue such as that available under the trademarks Elmer's and Tightbond may be used.
- resins similar to or identical with that used in the wood fiber extrusion may be used.
- both the extrusion and the glue are Urea-Formaldehyde resins.
- the setting of the Urea-Formaldehyde resin may be accelerated using catalysts. Examples of catalysts used include various metal salts, such as aluminum sulfate.
- first and second bands 20 are disposed about first and second ends of the shell 18 .
- these bands may be configured from steel or other suitable, high tensile strength material.
- These bands 20 may be disposed in rabbeted channels disposed in the shell 18 .
- the tightening of the bands 20 may depress the wood staves sufficiently to keep the steel band 20 from contacting items coiled about the shell 18 .
- the ends of the bands 20 may be crimped or buckled to ensure a secure and low profile joint. In some embodiments, the crimp or buckle may be recessed in a receiving recess.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
An architectural unit having an extruded core of wood fiber and a thermoset resin, the extruded core having a central hole coaxial with a major axis of the core and an exterior; a plurality of shaped staves forming a shell, each stave of the plurality of staves disposed about the exterior of the core and parallel to the major axis.
Description
- This application is a Continuation of U.S. Utility application Ser. No. 12/328,800, filed Dec. 5, 2008, which claims the benefit of U.S. Provisional Application No. 60/992,350, filed Dec. 5, 2007, both of which are herein incorporated in its entirety by reference.
- The invention relates to a structural core or bolt, and more particularly, to an extruded wood fiber core with an applied solid wood exterior shell.
- Wood fiber cores have been used in applications utilized for winding or spooling industrial products. Extruded wood fiber cores, such as those manufactured by the assignee since the mid 1960's, have been suitable for applications where low cost is valued, and where durability is not essential. Wood fiber cores have excellent compressive strength in the axial direction, but only moderate or poor tensile strength in the transverse direction. Such fiber cores may be extruded or molded. Wood fiber cores are typically limited to single use as they lack beam strength, and unwinding of materials from the core can produce cracks, fissures or other structural defects rendering them inoperative.
- Solid wood cores are manufactured using labor intensive machining of lumber, gluing, clamping and various steps. While more expensive than extruded core, the solid wood provides improved structural integrity for heavier materials or multiple use applications. Such solid wood cores are of particular value in intracompany uses. Such solid wood cores have improved beam strength.
- Similarly, the steel cores are highly durable, but require expensive fabrication and welding, are heavy, and are expensive to ship.
- What is needed, therefore, are techniques for providing durable, reusable cylinders manufacturable with low labor.
- One embodiment of the present invention provides a method for the production of structural cores with a solid wood exterior, the method comprising: providing a extruded wood core column; providing a plurality of solid wood staves having an interior profile mating an exterior profile of the extruded wood column; applying an adhesive to the interior profile of the staves and the exterior profile of the core; adhering the interior profile of each of the staves to the exterior profile of the core; mechanically securing the staves to the core; allowing the adhesive to cure providing a structural core with a solid wood exterior.
- Another embodiment of the present invention provides such a method further comprising placing at least one steel band about an end of the structural core with the solid wood exterior and embedding the band in the solid wood exterior.
- A further embodiment of the present invention provides such a method further comprising disposing at least one end cap on an end of the structural core with the solid wood exterior and crimping the end cap to secure it to the structural core with the solid wood exterior.
- Yet another embodiment of the present invention provides such a method wherein the step of mechanically securing comprises nailing the staves to the extruded core.
- A yet further embodiment of the present invention provides such a method wherein the step of mechanically securing comprises clamping the staves to the extruded core.
- Still another embodiment of the present invention provides such a method further comprising machining the staves from wood of a variety selected from the group of wood varieties consisting of poplar, oak, ash, maple, mahogany, and walnut.
- A still further embodiment of the present invention provides such a method wherein the wood is an exotic species of wood.
- Even another embodiment of the present invention provides such a method further comprising fluting the staves.
- An even further embodiment of the present invention provides such a method further comprising shaping the staves such that the solid wood exterior is tapered.
- Still yet another embodiment of the present invention provides such a method wherein the solid wood exterior comprises a parabolic frustrum.
- One embodiment of the present invention provides a structural unit; the structural unit comprising: a extruded core comprising wood fiber and a thermoset resin having a central hole coaxial with a major axis of the core and an exterior; a plurality of shaped staves forming a shell, each stave of the plurality of staves disposed about the exterior of the core and parallel to the major axis.
- Another embodiment of the present invention provides such a structural unit further comprising at least one slot disposed in at least one the stave is provided parallel to the axis.
- A further embodiment of the present invention provides such a structural unit wherein the plurality of staves form a cylindrical shell around the core.
- Yet another embodiment of the present invention provides such a structural unit wherein shell has groves where the staves meet.
- A yet further embodiment of the present invention provides such a structural unit wherein the staves are manufactured from a wood, the wood being of a wood species selected from the group of species consisting of poplar, pine, oak, mahogany and walnut.
- Still another embodiment of the present invention provides such a structural unit wherein the staves are tapered, such that the staves form a smooth, longitudinally tapered shell around the core.
- A still further embodiment of the present invention provides such a structural unit, wherein the shell is fluted.
- The features and advantages described herein are not all-inclusive and, in particular, many additional features and advantages will be apparent to one of ordinary skill in the art in view of the drawings, specification, and claims. Moreover, it should be noted that the language used in the specification has been principally selected for readability and instructional purposes, and not to limit the scope of the inventive subject matter.
-
FIG. 1 is a perspective drawing illustrating an extruded core cylinder with a solid wood shell configured in accordance with one embodiment of the present invention. -
FIG. 2A is a top plan view drawing illustrating a smooth stave of an extruded core cylinder with a solid wood shell configured in accordance with one embodiment of the present invention. -
FIG. 2B is an elevation view drawing illustrating a smooth stave of an extruded core cylinder with a solid wood shell configured in accordance with one embodiment of the present invention. -
FIG. 2C is a bottom plan view drawing illustrating smooth stave of an extruded core cylinder with a solid wood shell configured in accordance with one embodiment of the present invention. -
FIG. 3A is a top plan view drawing illustrating a fluted stave of an extruded core cylinder with a solid wood shell configured in accordance with one embodiment of the present invention. -
FIG. 3B is an elevation view drawing illustrating a fluted stave of an extruded core cylinder with a solid wood shell configured in accordance with one embodiment of the present invention. -
FIG. 3C is a bottom plan view drawing illustrating a fluted stave of an extruded core cylinder with a solid wood shell configured in accordance with one embodiment of the present invention. -
FIG. 4 is a cross sectional plan view illustrating an extruded core cylinder with a solid wood shell configured in accordance with one embodiment of the present invention and having a spiraled cross section. -
FIG. 5 is a cross sectional plan view illustrating an extruded core cylinder with a solid wood shell configured in accordance with one embodiment of the present invention and having retention slots disposed in the solid wood shell. -
FIG. 6 is an elevation view illustrating an extruded core cylinder with a solid wood shell configured in accordance with one embodiment of the present invention having a retention slot. -
FIG. 7 is a perspective view illustrating an extruded core cylinder for sheathing with a solid wood shell configured in accordance with one embodiment of the present invention. -
FIG. 8 is an elevation view illustrating an extruded core cylinder with a solid wood shell configured in accordance with one embodiment of the present invention undergoing clamping. - As illustrated in
FIG. 1 , acylinder 12 of extruded wood fiber disposed in a resin matrix is provided by one embodiment of the present invention. Theextruded core 12 is covered in ashell 18 ofwooden staves 14. In one embodiment of the present invention, eachstave 14 covers one eighth of the circumference of theextruded core 12. Staves 14, according to one embodiment of the present invention, are glued to the exterior of theextruded core 12. Nails may be used to affix thestaves 14 to thecore 12 while the glue cures, and may add additional strength to the bond between thestaves 14 and thecore 12. During manufacture,staves 14 may be clamped to thecore 12 to insure proper curing of the adhesive manually, using pipe clamps or other suitable hand clamp with a circular pressure ring, or may be clamped using a automated device whereby pressure is applied to the circumference of the stave shell. In one such embodiment pneumatic pressure may be applied, such as by an air choke. For example, Air Flex® clutch break single and double flange elements, part no. 142197JA sold by Eaton Corporation may be used. A central extruded bore 16 is provided through the core 12 to permit the introduction of shafts or other mounting means as necessary.Staves 14 are illustrated in greater detail inFIGS. 2A-3C . - In one embodiment of the present invention, illustrated in
FIG. 6 aslot 22 may be machined in one or more of the staves to allow the introduction of a tongue or anchor into the roll so as to facilitate the anchorage of the material to be wound upon the roller to the roller. Alternative retention means, including a spiraled cross section and a plurality of retention slots are illustrated inFIGS. 4 and 5 , respectively. - In one embodiment of the present invention, and end cap may be placed over each of the ends of a completed composite core thereby providing improved radial strength. Such caps are known to those skilled in the art and are used with known solid wood cores. In alternative embodiments where such strength is unimportant, such an endcap is unnecessary.
- In one embodiment of the invention, the
staves 14 may be configured with an exterior profile such that when each stave 14 is applied to the core 12 such that the elongate length of the stave 14 is parallel to the axis of the core 12, the exterior profile of the stave is rounded to form an arc, and the arcs of the eight staves combine to form a circular cross section. In alternative embodiments where the core may be used as structural or aesthetic architectural element, the staves may be machined prior to application to provide a suitable taper to the column, as illustrated inFIGS. 2A-2C , or in some embodiments fluting as illustrated inFIGS. 3A-3C . Such a taper may be obtained by applying a “shoe” to the stave during machining. In such esthetic embodiments, the staves may be applied to the core without nails, so as to avoid marring the surface of the lumber; alternatively an additional step may be employed wherein nail holes are filled with wood putty prior to sanding and finishing. One skilled in the art can appreciate that suitable capitals or other ornamental end pieces may be applied. - The interior profile of each stave 14, in one embodiment is curved to provide optimum contact with the exterior surface of an extruded core having a circular cross section. As noted above, in one embodiment, staves may comprise eight staves disposed about the circumference of the extruded core, while in alternative embodiments; different numbers of staves may be employed. Similarly, various cross-sectional shapes may be imparted to the extruded cores. In alternative embodiments where extrusions of square, polygonal, pentagonal, hexagonal, heptagonal, octagonal, nonagonal, or decagonal cross section or cross sections of any number of sides, staves with flat interior sides may be provided. In such embodiments same number of staves as of sides may be used. Similarly, in other alternative embodiments, staves may be milled to match the profile of the extruded core. It is noted, however, that polygonal cross sections can reduce the waist rate of the milled staves as the milled stave need only be milled on the exterior.
- Wood used in the construction of staves may, in one embodiment be wood from trees of the genus Populus. Other inexpensive, easily milled, woods may be used. The density of the wood may likewise be selected based upon factors including the desired durability of the unit produced, the weight and strength requirements, and a need for relative flexibility may be considered. Other suitable woods may include softwoods such as pine or hardwoods such as oak or maple. Exotic species, like mahogany, rosewood, and teak may also be used in applications where the esthetics of the finished piece require such woods.
- Glues used in the adhesion of the staves to the core are chemically and structurally compatible with the resins used in the core. Degradation of the core could compromise strength of the system. In one embodiment wood glue, such as that available under the trademarks Elmer's and Tightbond may be used. Alternatively, resins similar to or identical with that used in the wood fiber extrusion may be used. In one such embodiment both the extrusion and the glue are Urea-Formaldehyde resins. The setting of the Urea-Formaldehyde resin may be accelerated using catalysts. Examples of catalysts used include various metal salts, such as aluminum sulfate.
- In one embodiment of the present invention, first and
second bands 20 are disposed about first and second ends of theshell 18. In one embodiment these bands may be configured from steel or other suitable, high tensile strength material. Thesebands 20 may be disposed in rabbeted channels disposed in theshell 18. Alternatively, the tightening of thebands 20 may depress the wood staves sufficiently to keep thesteel band 20 from contacting items coiled about theshell 18. The ends of thebands 20 may be crimped or buckled to ensure a secure and low profile joint. In some embodiments, the crimp or buckle may be recessed in a receiving recess. - The foregoing description of the embodiments of the invention has been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise form disclosed. Many modifications and variations are possible in light of this disclosure. It is intended that the scope of the invention be limited not by this detailed description, but rather by the claims appended hereto.
Claims (7)
1. An architectural unit; said architectural unit comprising:
an extruded core comprising wood fiber and a thermoset resin having a central hole coaxial with a major axis of said core and an exterior;
a plurality of shaped staves forming a shell, each stave of said plurality of staves disposed about the exterior of said core and parallel to said major axis.
2. The architectural unit of claim 1 further comprising at least one slot disposed in at least one said stave is provided parallel to said axis.
3. The architectural unit of claim 1 wherein said plurality of staves forms a cylindrical shell around said core.
4. The architectural unit of claim 3 wherein shell has groves where said staves meet.
5. The architectural unit according to claim 1 wherein said staves are manufactured from a wood, said wood being of a wood species selected from the group of species consisting of poplar, pine, oak, mahogany and walnut.
6. The architectural unit according to claim 1 wherein said staves are tapered, such that said staves form a smooth, longitudinally tapered shell around said core.
7. The architectural unit of claim 1 , wherein said shell is fluted.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/075,336 US20110173912A1 (en) | 2007-12-05 | 2011-03-30 | Extruded cylinder with a solid wood exterior shell |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US99235007P | 2007-12-05 | 2007-12-05 | |
US12/328,800 US7954749B2 (en) | 2007-12-05 | 2008-12-05 | Extruded cylinder with a solid wood exterior |
US13/075,336 US20110173912A1 (en) | 2007-12-05 | 2011-03-30 | Extruded cylinder with a solid wood exterior shell |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/328,800 Continuation US7954749B2 (en) | 2007-12-05 | 2008-12-05 | Extruded cylinder with a solid wood exterior |
Publications (1)
Publication Number | Publication Date |
---|---|
US20110173912A1 true US20110173912A1 (en) | 2011-07-21 |
Family
ID=40720597
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/328,800 Active 2028-12-11 US7954749B2 (en) | 2007-12-05 | 2008-12-05 | Extruded cylinder with a solid wood exterior |
US13/075,336 Abandoned US20110173912A1 (en) | 2007-12-05 | 2011-03-30 | Extruded cylinder with a solid wood exterior shell |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/328,800 Active 2028-12-11 US7954749B2 (en) | 2007-12-05 | 2008-12-05 | Extruded cylinder with a solid wood exterior |
Country Status (1)
Country | Link |
---|---|
US (2) | US7954749B2 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7954749B2 (en) * | 2007-12-05 | 2011-06-07 | Randolph A. Dunn | Extruded cylinder with a solid wood exterior |
US8402717B1 (en) * | 2009-07-06 | 2013-03-26 | Lawrence Girard Randazzo | Wood hybrid light pole |
US9487375B2 (en) * | 2010-01-19 | 2016-11-08 | Souhegan Wood Products, Inc. | Structural cylinder with conformable exterior |
US10807829B2 (en) | 2016-09-14 | 2020-10-20 | Souhegan Wood Products Inc. | Reinforced wood fiber core |
USD876208S1 (en) | 2017-09-08 | 2020-02-25 | Souhegan Wood Products Inc. | Winding core |
US11772315B1 (en) * | 2019-08-14 | 2023-10-03 | Souhegan Wood Products Inc. | Reinforced wood fiber core and method of making thereof |
Citations (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US503227A (en) * | 1893-08-15 | Wire-rope drum-reel | ||
US868953A (en) * | 1907-04-16 | 1907-10-22 | Thomas B White | Post-protector. |
US939749A (en) * | 1909-05-10 | 1909-11-09 | Frank E Sagendorph | Furring-strip. |
US1015244A (en) * | 1910-05-23 | 1912-01-16 | Howard Parker | Reel-drum or the like. |
US1753342A (en) * | 1928-02-25 | 1930-04-08 | Eber J Hubbard | Reel |
US1881911A (en) * | 1930-03-28 | 1932-10-11 | Brown Co | Core for textiles |
US2365980A (en) * | 1943-09-14 | 1944-12-26 | U S Textile Machine Company | Mandrel |
US2977066A (en) * | 1956-12-13 | 1961-03-28 | Western Electric Co | Knock-down reel |
US3447996A (en) * | 1965-06-10 | 1969-06-03 | Max Himmelheber | Stratified wood composition panel |
US3807458A (en) * | 1970-12-14 | 1974-04-30 | Rayston Labor Inc | Pipe coatings |
US4034932A (en) * | 1975-04-18 | 1977-07-12 | Alois Ferch | Methods for imparting a grooved surface to cable drum shells |
US4179269A (en) * | 1978-04-12 | 1979-12-18 | Lee Floyd W | Synthetic log production |
US4361530A (en) * | 1980-05-02 | 1982-11-30 | Anton Heggenstaller | Method of and apparatus for shaping a strand during extrusion |
US4701373A (en) * | 1983-11-05 | 1987-10-20 | Hoechst Aktiengesellschaft | Difficultly flammable veneered or coated extruded boards |
US4810255A (en) * | 1987-01-15 | 1989-03-07 | Kimberly-Clark Corporation | Manufactured fuel article |
US5147722A (en) * | 1989-02-23 | 1992-09-15 | Koslow Technologies Corporation | Process for the production of materials and materials produced by the process |
US5585155A (en) * | 1995-06-07 | 1996-12-17 | Andersen Corporation | Fiber reinforced thermoplastic structural member |
US5987845A (en) * | 1998-05-08 | 1999-11-23 | Laronde; Mark J. | Post cover with tongue and groove joint |
US6083601A (en) * | 1997-03-19 | 2000-07-04 | Royal Wood, Inc. | Foam wood extrusion product |
US6319457B1 (en) * | 1999-08-27 | 2001-11-20 | Viskase Corporation | Method for extruding tubular film |
US20020094431A1 (en) * | 2001-01-16 | 2002-07-18 | Extrutech International, Inc. | Composites useful as fence and decking components and methods for producing same |
US20050015986A1 (en) * | 2002-12-17 | 2005-01-27 | Stebnicki James C. | Method of making a return roller |
US20050133951A1 (en) * | 1995-12-27 | 2005-06-23 | Trex Company, L.L.C. | Die assembly and method for making a wood-thermoplastic composite |
US7270279B2 (en) * | 2003-05-27 | 2007-09-18 | Steven Monk | Pinewood car racing track that is easy to assemble, durable, and sturdy |
US7357726B2 (en) * | 2002-01-11 | 2008-04-15 | Fiberline A/S | Method of producing a fibre reinforced structural element |
US20080156234A1 (en) * | 2007-01-02 | 2008-07-03 | Sonoco Development, Inc. | Co-extruded pallet block |
US20090110842A1 (en) * | 2001-06-15 | 2009-04-30 | The University Of Melboume | Boron-based wood preservatives and treatment of wood with boron-based preservatives |
US20090145994A1 (en) * | 2007-12-05 | 2009-06-11 | Dunn Randolph A | Extruded cylinder with a solid wood exterior |
US20100236172A1 (en) * | 2009-03-18 | 2010-09-23 | Les Chantiers Chibougamau Ltee | Framing system and components with built-in thermal break |
US20100236182A1 (en) * | 2009-03-19 | 2010-09-23 | Mackenzie Douglas A | Flexible Wrap of Rotatably Interlocking Fluted Strips |
US7818939B2 (en) * | 2007-06-05 | 2010-10-26 | Irvin Bearinger | Snap lock joint |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL9202139A (en) | 1992-12-10 | 1994-07-01 | Lankhorst Recycling Bv | Method and device for manufacturing elongated objects from thermoplastic plastic material, as well as an object manufactured by means of the method or device. |
US6716522B2 (en) | 2000-01-26 | 2004-04-06 | Sekisui Chemical Co., Ltd. | Molded article from thermoplastic composite material and method for producing the same |
-
2008
- 2008-12-05 US US12/328,800 patent/US7954749B2/en active Active
-
2011
- 2011-03-30 US US13/075,336 patent/US20110173912A1/en not_active Abandoned
Patent Citations (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US503227A (en) * | 1893-08-15 | Wire-rope drum-reel | ||
US868953A (en) * | 1907-04-16 | 1907-10-22 | Thomas B White | Post-protector. |
US939749A (en) * | 1909-05-10 | 1909-11-09 | Frank E Sagendorph | Furring-strip. |
US1015244A (en) * | 1910-05-23 | 1912-01-16 | Howard Parker | Reel-drum or the like. |
US1753342A (en) * | 1928-02-25 | 1930-04-08 | Eber J Hubbard | Reel |
US1881911A (en) * | 1930-03-28 | 1932-10-11 | Brown Co | Core for textiles |
US2365980A (en) * | 1943-09-14 | 1944-12-26 | U S Textile Machine Company | Mandrel |
US2977066A (en) * | 1956-12-13 | 1961-03-28 | Western Electric Co | Knock-down reel |
US3447996A (en) * | 1965-06-10 | 1969-06-03 | Max Himmelheber | Stratified wood composition panel |
US3807458A (en) * | 1970-12-14 | 1974-04-30 | Rayston Labor Inc | Pipe coatings |
US4034932A (en) * | 1975-04-18 | 1977-07-12 | Alois Ferch | Methods for imparting a grooved surface to cable drum shells |
US4179269A (en) * | 1978-04-12 | 1979-12-18 | Lee Floyd W | Synthetic log production |
US4361530A (en) * | 1980-05-02 | 1982-11-30 | Anton Heggenstaller | Method of and apparatus for shaping a strand during extrusion |
US4701373A (en) * | 1983-11-05 | 1987-10-20 | Hoechst Aktiengesellschaft | Difficultly flammable veneered or coated extruded boards |
US4810255A (en) * | 1987-01-15 | 1989-03-07 | Kimberly-Clark Corporation | Manufactured fuel article |
US5147722A (en) * | 1989-02-23 | 1992-09-15 | Koslow Technologies Corporation | Process for the production of materials and materials produced by the process |
US5585155A (en) * | 1995-06-07 | 1996-12-17 | Andersen Corporation | Fiber reinforced thermoplastic structural member |
US6007656A (en) * | 1995-06-07 | 1999-12-28 | Andersen Corporation | Fiber reinforced thermoplastic structural member |
US6106944A (en) * | 1995-06-07 | 2000-08-22 | Andersen Corporation | Fiber thermoset reinforced thermoplastic structural member |
US20050133951A1 (en) * | 1995-12-27 | 2005-06-23 | Trex Company, L.L.C. | Die assembly and method for making a wood-thermoplastic composite |
US6083601A (en) * | 1997-03-19 | 2000-07-04 | Royal Wood, Inc. | Foam wood extrusion product |
US5987845A (en) * | 1998-05-08 | 1999-11-23 | Laronde; Mark J. | Post cover with tongue and groove joint |
US6319457B1 (en) * | 1999-08-27 | 2001-11-20 | Viskase Corporation | Method for extruding tubular film |
US20020094431A1 (en) * | 2001-01-16 | 2002-07-18 | Extrutech International, Inc. | Composites useful as fence and decking components and methods for producing same |
US20090110842A1 (en) * | 2001-06-15 | 2009-04-30 | The University Of Melboume | Boron-based wood preservatives and treatment of wood with boron-based preservatives |
US7357726B2 (en) * | 2002-01-11 | 2008-04-15 | Fiberline A/S | Method of producing a fibre reinforced structural element |
US20050015986A1 (en) * | 2002-12-17 | 2005-01-27 | Stebnicki James C. | Method of making a return roller |
US7270279B2 (en) * | 2003-05-27 | 2007-09-18 | Steven Monk | Pinewood car racing track that is easy to assemble, durable, and sturdy |
US20080156234A1 (en) * | 2007-01-02 | 2008-07-03 | Sonoco Development, Inc. | Co-extruded pallet block |
US7818939B2 (en) * | 2007-06-05 | 2010-10-26 | Irvin Bearinger | Snap lock joint |
US20090145994A1 (en) * | 2007-12-05 | 2009-06-11 | Dunn Randolph A | Extruded cylinder with a solid wood exterior |
US7954749B2 (en) * | 2007-12-05 | 2011-06-07 | Randolph A. Dunn | Extruded cylinder with a solid wood exterior |
US20100236172A1 (en) * | 2009-03-18 | 2010-09-23 | Les Chantiers Chibougamau Ltee | Framing system and components with built-in thermal break |
US20100236182A1 (en) * | 2009-03-19 | 2010-09-23 | Mackenzie Douglas A | Flexible Wrap of Rotatably Interlocking Fluted Strips |
Also Published As
Publication number | Publication date |
---|---|
US20090145994A1 (en) | 2009-06-11 |
US7954749B2 (en) | 2011-06-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20110173912A1 (en) | Extruded cylinder with a solid wood exterior shell | |
US5438812A (en) | Hollow veneered pole | |
US5576082A (en) | Wood tubing | |
US9382093B2 (en) | Structural cylinder with conformable exterior | |
US7779603B2 (en) | Support structure of building | |
US3956542A (en) | Multiple ply wood article and method | |
US3963546A (en) | Method of making a multiple ply wood article | |
US20210032069A1 (en) | Reinforced wood fiber core | |
US3835904A (en) | Apparatus for laminating wooden strips | |
US5240050A (en) | Method for fabricating a gluing plank | |
CN210969275U (en) | Hollow wood composite cylinder fixing device | |
US5515942A (en) | Ladder stiles and ladders produced therefrom | |
KR101200380B1 (en) | Manually cylindrical laminating machine | |
US20230405904A1 (en) | Reinforced wood fiber core and method of making thereof | |
US11825944B2 (en) | Cone assembly and method of manufacturing such assembly | |
US2689097A (en) | Reel | |
RU220098U1 (en) | Prefabricated cable drum | |
CA2438691C (en) | Dowel and method of using same | |
KR100529279B1 (en) | Manufacturing method of wood steering wheel used in vehicle | |
FI77594B (en) | FOERFARANDE VID TILLVERKNING AV ROERFORMIGA TRAEKONSTRUKTIONER. | |
JPS6115802B2 (en) | ||
SK500542013A3 (en) | Tube of bicycle frame, method of producing this tube and bicycle frame | |
AU2013224725A1 (en) | Composite structural member | |
US20090145080A1 (en) | Baluster | |
KR20050040501A (en) | Manufacturing method of wood steering wheel used in vehicle |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |