Abstract: A flange design providing improved strength, fracture resistance, and the like using corrugations extending substantially radially from an arbot aperture toward a rim portion. A spool or reel may include a tubular member to receive a stranded material wrapped therearound. A first flange comprising a core portion and an outer portion may secure to one end of the first flange engaging the tubular member. A second flange may secure to the other end of the tubular member. The core portion of a flange may comprise an arbor wall defining the perimeter of an arbor aperture. The arbor wall may be directly contacted and supported by a plurality of corrugations extending radially therefrom. The outer prortion of a flange may contact the core portion and extending radially away therefrom to an outer edge to restrain the stranded material in an axial direction.

Abstract: A flange design providing improved strength, fracture resistance, and the like using corrugations extending substantially radially from an arbot aperture toward a rim portion. A spool or reel may include a tubular member to receive a stranded material wrapped therearound. A first flange comprising a core portion and an outer portion may secure to one end of the first flange engaging the tubular member. A second flange may secure to the other end of the tubular member. The core portion of a flange may comprise an arbor wall defining the perimeter of an arbor aperture. The arbor wall may be directly contacted and supported by a plurality of corrugations extending radially therefrom. The outer prortion of a flange may contact the core portion and extending radially away therefrom to an outer edge to restrain the stranded material in an axial direction.

Abstract: A flange design providing improved strength, fracture resistance, and the like using corrugations extending substantially radially from an arbor aperture toward a rim portion. A spool or reel may include a tubular member to receive a stranded material wrapped therearound. A first flange comprising a core portion and an outer portion may secure to one end of the first flange engaging the tubular member. A second flange may secure to the other end of the tubular member. The core portion of a flange may comprise an arbor wall defining the perimeter of an arbor aperture. The arbor wall may be directly contacted and supported by a plurality of corrugations extending radially therefrom. The outer portion of a flange may contact the core portion and extending radially away therefrom to an outer edge to restrain the stranded material in an axial direction.

Abstract: The present invention is related to a chair leg rest assembly or kit. The assembly or kit may include, among other things, a leg rest and a frame for extension and retraction of the leg rest. In addition, the invention may include a roller assembly connected to the leg rest for covering the frame. The invention is also related to a combination of the chair leg rest assembly or kit with a chair. In such a combination, the invention also includes a back which hingedly rotates independently from a seat.

Abstract: A seat including a plurality of user support assemblies that are independently adjustable. User support assemblies, which are independently adjustable, include a head support assembly, a thoracic support assembly, and a lumbar support assembly. Moreover, the seat might include a independently adjustable seat assembly.

Abstract: A method for welding parts formed of polymeric resins having different melt-index grades. The method may include the steps of selecting a tube formed of a first thermoplastic in an extrusion process, selecting a first flange formed of a second thermoplastic in an injection molding process and having a containment region sized to receive an end of the tube, inserting an end of the tube within the containment region of the first flange, and welding the tube to the flange by inducing relative rotation between the flange and the tube. The containment region may have a depth more than two times the wall thickness of the tube. Moreover, the containment region may maintain its shape and support friction pressure on a significant portion of melted material within the weld zone, so the material may continue to generate heat and conduct the same to the less easily melted material.

Abstract: A seat including a plurality of user support assemblies that are independently adjustable. User support assemblies, which are independently adjustable, include a head support assembly, a thoracic support assembly, and a lumbar support assembly. Moreover, the seat might include a independently adjustable seat assembly.

Abstract: The present invention is related to a chair leg rest assembly or kit. The assembly or kit may include, among other things, a leg rest and a frame for extension and retraction of the leg rest. In addition, the invention may include a roller assembly connected to the leg rest for covering the frame. The invention is also related to a combination of the chair leg rest assembly or kit with a chair. In such a combination, the invention also includes a back which hingedly rotates independently from a seat.

Abstract: A flange design providing improved strength, fracture resistance, and the like using corrugations extending substantially radially from an arbor aperture toward a rim portion. A spool or reel may include a tubular member to receive a stranded material wrapped therearound. A first flange comprising a core portion and an outer portion may secure to one end of the first flange engaging the tubular member. A second flange may secure to the other end of the tubular member. The core portion of a flange may comprise an arbor wall defining the perimeter of an arbor aperture. The arbor wall may be directly contacted and supported by a plurality of corrugations extending radially therefrom. The outer portion of a flange may contact the core portion and extending radially away therefrom to an outer edge to restrain the stranded material in an axial direction.

Abstract: A method for welding parts formed of polymeric resins having different melt-index grades. The method may include the steps of selecting a tube formed of a first thermoplastic in an extrusion process, selecting a first flange formed of a second thermoplastic in an injection molding process and having a containment region sized to receive an end of the tube, inserting an end of the tube within the containment region of the first flange, and welding the tube to the flange by inducing relative rotation between the flange and the tube. The containment region may have a depth more than two times the wall thickness of the tube. Moreover, the containment region may maintain its shape and support friction pressure on a significant portion of melted material within the weld zone, so the material may continue to generate heat and conduct the same to the less easily melted material.

Abstract: A flange design providing improved strength, fracture resistance, and the like using corrugations extending substantially radially from an arbor aperture toward a rim portion. A spool or reel may include a tubular member to receive a stranded material wrapped therearound. A first flange comprising a core portion and an outer portion may secure to one end of the first flange engaging the tubular member. A second flange may secure to the other end of the tubular member. The core portion of a flange may comprise an arbor wall defining the perimeter of an arbor aperture. The arbor wall may be directly contacted and supported by a plurality of corrugations extending radially therefrom. The outer portion of a flange may contact the core portion and extending radially away therefrom to an outer edge to restrain the stranded material in an axial direction.

Abstract: A method for welding parts formed of polymeric resins having different melt-index grades. The method may include the steps of selecting a tube formed of a first thermoplastic in an extrusion process, selecting a first flange formed of a second thermoplastic in an injection molding process and having a containment region sized to receive an end of the tube, inserting an end of the tube within the containment region of the first flange, and welding the tube to the flange by inducing relative rotation between the flange and the tube. The containment region may have a depth more than two times the wall thickness of the tube. Moreover, the containment region may maintain its shape and support friction pressure on a significant portion of melted material within the weld zone, so the material may continue to generate heat and conduct the same to the less easily melted material.

Abstract: A flange design providing improved strength, fracture resistance, and the like using corrugations extending substantially radially from an arbor aperture toward a rim portion. A spool or reel may include a tubular member to receive a stranded material wrapped therearound. A first flange comprising a core portion and an outer portion may secure to one end of the first flange engaging the tubular member. A second flange may secure to the other end of the tubular member. The core portion of a flange may comprise an arbor wall defining the perimeter of an arbor aperture. The arbor wall may be directly contacted and supported by a plurality of corrugations extending radially therefrom. The outer portion of a flange may contact the core portion and extending radially away therefrom to an outer edge to restrain the stranded material in an axial direction.

Abstract: A flange design providing improved strength, fracture resistance, and the like using corrugations extending substantially radially from an arbor aperture toward a rim portion. A spool or reel may include a tubular member to receive a stranded material wrapped therearound. A first flange comprising a core portion and an outer portion may secure to one end of the first flange engaging the tubular member. A second flange may secure to the other end of the tubular member. The core portion of a flange may comprise an arbor wall defining the perimeter of an arbor aperture. The arbor wall may be directly contacted and supported by a plurality of corrugations extending radially therefrom. The outer portion of a flange may contact the core portion and extending radially away therefrom to an outer edge to restrain the stranded material in an axial direction.

Abstract: A flange design providing improved strength, fracture resistance, and the like using corrugations extending substantially radially from an arbor aperture toward a rim portion. A spool or reel may include a tubular member to receive a stranded material wrapped therearound. A first flange comprising a core portion and an outer portion may secure to one end of the first flange engaging the tubular member. A second flange may secure to the other end of the tubular member. The core portion of a flange may comprise an arbor wall defining the perimeter of an arbor aperture. The arbor wall may be directly contacted and supported by a plurality of corrugations extending radially therefrom. The outer portion of a flange may contact the core portion and extending radially away therefrom to an outer edge to restrain the stranded material in an axial direction.

Abstract: A flange design providing improved strength, fracture resistance, and the like using corrugations extending substantially radially from an arbor aperture toward a rim portion. A spool or reel may include a tubular member to receive a stranded material wrapped therearound. A first flange comprising a core portion and an outer portion may secure to one end of the first flange engaging the tubular member. A second flange may secure to the other end of the tubular member. The core portion of a flange may comprise an arbor wall defining the perimeter of an arbor aperture. The arbor wall may be directly contacted and supported by a plurality of corrugations extending radially therefrom. The outer portion of a flange may contact the core portion and extending radially away therefrom to an outer edge to restrain the stranded material in an axial direction.

Abstract: A flange design for spools and reels may be provided from molded materials such as plastics. Improved strength, stiffness, fracture resistance, energy absorption, and toughness may be provided by appropriate design of corrugations extending substantially radially from a hub or core portion toward a rim portion. Spools and reels may be produced from Styrene plastics, olefinics such as polyethylene and polyprophelene, and may have tubes formed from the same or different materials. Flanges may be designed to crush near a rim or to be stiff near a rim. Likewise, portions of a flange may be designed to buckle, fracture, or otherwise fail sufficiently to absorb energy, while protecting a spool from excessive fracture or distortion. Likewise, portions of the flange may be designed to fail while others nearby do not, in order to protect against catastrophic failure (e.g. extensive separation).

Abstract: A flange design for spools and reels may be provided from molded materials such as plastics. Improved strength, stiffness, fracture resistance, energy absorption, and toughness may be provided by appropriate design of corrugations extending substantially radially from a hub or core portion toward a rim portion. Spools and reels may be produced from Styrene plastics, olefinics such as polyethylene and polyprophelene, and may have tubes formed from the same or different materials. Flanges may be designed to crush near a rim or to be stiff near a rim. Likewise, portions of a flange may be designed to buckle, fracture, or otherwise fail sufficiently to absorb energy, while protecting a spool from excessive fracture or distortion. Likewise, portions of the flange may be designed to fail while others nearby do not, in order to protect against catastrophic failure (e. g. extensive separation).

Abstract: A flange design for spools and reels may be provided from molded materials such as plastics. Improved strength, stiffness, fracture resistance, energy absorption, and toughness may be provided by appropriate design of corrugations extending substantially radially from a hub or core portion toward a rim portion. Spools and reels may be produced from Styrene plastics, olefinics such as polyethylene and polyprophelene, and may have tubes formed from the same or different materials. Flanges may be designed to crush near a rim or to be stiff near a rim. Likewise, portions of a flange may be designed to buckle, fracture, or otherwise fail sufficiently to absorb energy, while protecting a spool from excessive fracture or distortion. Likewise, portions of the flange may be designed to fail while others nearby do not, in order to protect against catastrophic failure (e.g. extensive separation).

Abstract: A flange design for spools and reels may be provided from molded materials such as plastics. Improved strength, stiffness, fracture resistance, energy absorption, and toughness may be provided by appropriate design of corrugations extending substantially radially from a hub or core portion toward a rim portion. Spools and reels may be produced from Styrene plastics, olefinics such as polyethylene and polyprophelene, and may have tubes formed from the same or different materials. Flanges may be designed to crush near a rim or to be stiff near a rim. Likewise, portions of a flange may be designed to buckle, fracture, or otherwise fail sufficiently to absorb energy, while protecting a spool from excessive fracture or distortion. Likewise, portions of the flange may be designed to fail while others nearby do not, in order to protect against catastrophic failure (e.g. extensive separation).