Patents by Inventor Ralph S. Friedrich
Ralph S. Friedrich has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9879440Abstract: Poles of this invention have an annular body with a wall structure comprising a number of fiber reinforced resin layers, which can be positioned to form an inside and/or outside portion of the wall structure. A portion of the layers are oriented longitudinally within the wall structure, and the wall structure also includes radially-oriented fiber reinforced resin layers. The pole includes one or more layers or a core of a composite material or polymer mortar disposed within one or more locations of the wall structure, e.g., as an intermediate layer and/or as part of the wall inside and/or outside portion. The pole can include an outside surface resistant to ultra violet radiation. Poles of this invention can be formed using a continuous process on a rotating mandrel, making use of differently positioned stations to form the different portions of the pole as the fabrication is moved axially along the mandrel.Type: GrantFiled: October 11, 2006Date of Patent: January 30, 2018Assignee: NOV North America I/P, LLCInventors: Ralph S. Friedrich, Ron G. Ulrich, James W. Davidson, Hector P. Mercado, David B. Jones, Ronald A. Viegl, Liming Chen
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Patent number: 9057204Abstract: Poles of this invention have an annular body with a wall structure comprising a number of fiber reinforced resin layers, which can be positioned to form an inside and/or outside portion of the wall structure. A portion of the layers are oriented longitudinally within the wall structure, and the wall structure also includes radially-oriented fiber reinforced resin layers. The pole includes one or more layers or a core of a composite material or polymer mortar disposed within one or more locations of the wall structure, e.g., as an intermediate layer and/or as part of the wall inside and/or outside portion. The pole can include an outside surface resistant to ultra violet radiation. Poles of this invention can be formed using a continuous process on a rotating mandrel, making use of differently positioned stations to form the different portions of the pole as the fabrication is moved axially along the mandrel.Type: GrantFiled: February 17, 2011Date of Patent: June 16, 2015Assignee: AMERON INTERNATIONAL CORPORATIONInventors: Ralph S. Friedrich, Ron G. Ulrich, James W. Davidson, Hector P. Mercado, David B. Jones, Ronald A. Viegl, Liming Chen
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Patent number: 8944114Abstract: Mortar-coated steel pipe comprise a steel cylinder having a mortar layer disposed therein, such mortar layer being free of any metallic reinforcement. An overcoat is disposed over the mortar layer and is formed from a material that is a dielectric and/or a barrier to moisture and oxygen entering the mortar layer, e.g., a polymeric material. The pipe may include a further concrete or mortar layer disposed over the overcoat, forming an outermost pipe surface. The outer layer can be cement, mortar, or other material. The mortar layer thickness is about 2 to 30 mm, the overcoat thickness is about 0.1 to 2 mm, and any outer layer thickness is about 1.2 to 4 cm. The pipe is made by compression coating method, where mortar layer and overcoat are applied simultaneously. When an outer layer is desired, it is preferably applied at the same time as the mortar layer and overcoat.Type: GrantFiled: June 10, 2011Date of Patent: February 3, 2015Assignee: Ameron International CorporationInventors: Richard I. Mueller, Ralph S. Friedrich, Qizhong Sheng
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Patent number: 8627854Abstract: Pressure cast lined steel pipes comprise an annular concrete or mortar liner along an inside diameter, and a metal shell surrounding the liner, wherein the liner is in direct contact with the metal shell. The wall thickness of the liner can be from 10 to 50 times the thickness of the metal shell. The pipe may be coated with a dielectric material. A mold assembly used to form the pipe includes an annular concrete or mortar composition chamber formed between the metal shell and an inner mold member. Pressurized water is used in the mold assembly to pressurize the concrete or mortar composition and exert a desired pressure force onto the metal shell while the composition cures in the mold. Once a desired degree of cure is achieved, the pressure is removed causing the metal shell to exert a desired compression force onto the cured liner.Type: GrantFiled: December 6, 2011Date of Patent: January 14, 2014Assignee: Ameron International CorporationInventors: Ralph S. Friedrich, Qizhong Sheng, Paul Kubat
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Publication number: 20120315095Abstract: Mortar-coated steel pipe comprise a steel cylinder having a mortar layer disposed therein, such mortar layer being free of any metallic reinforcement. An overcoat is disposed over the mortar layer and is formed from a material that is a dielectric and/or a barrier to moisture and oxygen entering the mortar layer, e.g., a polymeric material. The pipe may include a further concrete or mortar layer disposed over the overcoat, forming an outermost pipe surface. The outer layer can be cement, mortar, or other material. The mortar layer thickness is about 2 to 30 mm, the overcoat thickness is about 0.1 to 2 mm, and any outer layer thickness is about 1.2 to 4 cm. The pipe is made by compression coating method, where mortar layer and overcoat are applied simultaneously. When an outer layer is desired, it is preferably applied at the same time as the mortar layer and overcoat.Type: ApplicationFiled: June 10, 2011Publication date: December 13, 2012Inventors: Richard I. Mueller, Ralph S. Friedrich, Qizhong Sheng
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Publication number: 20120152396Abstract: Pressure cast lined steel pipes comprise an annular concrete or mortar liner along an inside diameter, and a metal shell surrounding the liner, wherein the liner is in direct contact with the metal shell. The wall thickness of the liner can be from 10 to 50 times the thickness of the metal shell. The pipe may be coated with a dielectric material. A mold assembly used to form the pipe includes an annular concrete or mortar composition chamber formed between the metal shell and an inner mold member. Pressurized water is used in the mold assembly to pressurize the concrete or mortar composition and exert a desired pressure force onto the metal shell while the composition cures in the mold. Once a desired degree of cure is achieved, the pressure is removed causing the metal shell to exert a desired compression force onto the cured liner.Type: ApplicationFiled: December 6, 2011Publication date: June 21, 2012Applicant: AMERON INTERNATIONALInventors: Ralph S. Friedrich, Qizhong Sheng, Paul Kubat
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Patent number: 8069880Abstract: Pressure cast lined steel pipes comprise an annular concrete or mortar liner along an inside diameter, and a metal shell surrounding the liner, wherein the liner is in direct contact with the metal shell. The wall thickness of the liner can be from 10 to 50 times the thickness of the metal shell. The pipe may be coated with a dielectric material. A mold assembly used to form the pipe includes an annular concrete or mortar composition chamber formed between the metal shell and an inner mold member. Pressurized water is used in the mold assembly to pressurize the concrete or mortar composition and exert a desired pressure force onto the metal shell while the composition cures in the mold. Once a desired degree of cure is achieved, the pressure is removed causing the metal shell to exert a desired compression force onto the cured liner.Type: GrantFiled: April 2, 2008Date of Patent: December 6, 2011Assignee: Ameron International CorporationInventors: Ralph S. Friedrich, Qizhong Sheng, Paul Kubat
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Publication number: 20110132524Abstract: Poles of this invention have an annular body with a wall structure comprising a number of fiber reinforced resin layers, which can be positioned to form an inside and/or outside portion of the wall structure. A portion of the layers are oriented longitudinally within the wall structure, and the wall structure also includes radially-oriented fiber reinforced resin layers. The pole includes one or more layers or a core of a composite material or polymer mortar disposed within one or more locations of the wall structure, e.g., as an intermediate layer and/or as part of the wall inside and/or outside portion. The pole can include an outside surface resistant to ultra violet radiation. Poles of this invention can be formed using a continuous process on a rotating mandrel, making use of differently positioned stations to form the different portions of the pole as the fabrication is moved axially along the mandrel.Type: ApplicationFiled: February 17, 2011Publication date: June 9, 2011Applicant: AMERON INTERNATIONALInventors: Ralph S. Friedrich, Ron G. Ulrich, James W. Davidson, Hector P. Mercado, David B. Jones, Ronald A. Viegl, Liming Chen
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Publication number: 20090250135Abstract: Pressure cast lined steel pipes comprise an annular concrete or mortar liner along an inside diameter, and a metal shell surrounding the liner, wherein the liner is in direct contact with the metal shell. The wall thickness of the liner can be from 10 to 50 times the thickness of the metal shell. The pipe may be coated with a dielectric material. A mold assembly used to form the pipe includes an annular concrete or mortar composition chamber formed between the metal shell and an inner mold member. Pressurized water is used in the mold assembly to pressurize the concrete or mortar composition and exert a desired pressure force onto the metal shell while the composition cures in the mold. Once a desired degree of cure is achieved, the pressure is removed causing the metal shell to exert a desired compression force onto the cured liner.Type: ApplicationFiled: April 2, 2008Publication date: October 8, 2009Applicant: AMERON INTERNATIONALInventors: Ralph S. Friedrich, Qizhong Sheng, Paul Kubat
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Publication number: 20080087371Abstract: Poles of this invention have an annular body with a wall structure comprising a number of fiber reinforced resin layers, which can be positioned to form an inside and/or outside portion of the wall structure. A portion of the layers are oriented longitudinally within the wall structure, and the wall structure also includes radially-oriented fiber reinforced resin layers. The pole includes one or more layers or a core of a composite material or polymer mortar disposed within one or more locations of the wall structure, e.g., as an intermediate layer and/or as part of the wall inside and/or outside portion. The pole can include an outside surface resistant to ultra violet radiation. Poles of this invention can be formed using a continuous process on a rotating mandrel, making use of differently positioned stations to form the different portions of the pole as the fabrication is moved axially along the mandrel.Type: ApplicationFiled: October 11, 2006Publication date: April 17, 2008Applicant: AMERON INTERNATIONAL CORPORATIONInventors: Ralph S. Friedrich, Ron G. Ulrich, James W. Davidson, Hector P. Mercado, David B. Jones, Ronald A. Viegl, Liming Chen
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Patent number: 7166177Abstract: Methods for forming double containment pipeline sections are provided where granular material is used to define the annuluses of such pipeline sections.Type: GrantFiled: August 21, 2003Date of Patent: January 23, 2007Assignee: Ameron International CorporationInventors: Ralph S. Friedrich, Joie L. Folkers, Brian M. Francis
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Patent number: 6920900Abstract: A pipe section for lining sewer pipelines along with a system of such pipe sections and method of lining a sewer pipeline are provided. The pipe section has a first end portion having a spigot. A protective ring is mounted around the spigot for transferring a load to the pipe section for axially moving the pipe section within a sewer pipeline. A second end portion of the pipe section is designed for surrounding the spigot of an adjacent pipe. A seal is formed is formed around the spigot for sealing with the second end portion of the adjacent pipe section.Type: GrantFiled: March 21, 2003Date of Patent: July 26, 2005Assignee: Ameron International CorporationInventor: Ralph S. Friedrich
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Patent number: 6737134Abstract: Abrasion resistant pipes of this invention comprise a structural wall formed from a filament wound fiberglass-reinforced material, and an elastomeric abrasion resistant material disposed along the inside and/or outside surface of such pipe. In a preferred embodiment, the structural pipe wall is formed from a filament wound fiberglass-reinforced epoxy resin material, and the abrasion resistant material is formed from a polyurea elastomer. Abrasion resistant pipes of this invention are manufactured using existing filament winding processes by first coating a mandrel with the elastomeric abrasion resistant material, and than winding the resin impregnated filament therearound. Pipes prepared according to principles of this invention have improved properties of toughness, temperature resistance, chemical resistance, and abrasion resistance when compared to conventional fiberglass-reinforced pipes that either have no protective liner or have liners formed from other elastomeric materials.Type: GrantFiled: May 6, 1998Date of Patent: May 18, 2004Assignee: Ameron International CorporationInventors: Ralph S. Friedrich, Colin G. Hull
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Publication number: 20040089405Abstract: Methods for forming double containment pipeline sections are provided where granular material is used to define the annuluses of such pipeline sections.Type: ApplicationFiled: August 21, 2003Publication date: May 13, 2004Inventors: Ralph S. Friedrich, Joie L. Folkers, Brian M. Francis
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Patent number: 6626467Abstract: A fitting assembly for joining a double containment pipe (DCP), including primary and secondary pipes, to a double containment fitting, including primary and secondary fittings, wherein the secondary fitting has a larger diameter than the secondary pipe. A sealing reducer has a larger diameter end for fitting over the secondary fitting and a smaller diameter end for fitting over the secondary pipe. The sealing reducer is fit over the secondary pipe, the primaries of the DCP and double containment fitting are joined, and then the sealing reducer is positioned over the primary joint and its smaller and larger diameter ends sealed, either by adhesive or a combination of interlocking threaded fitting components and O-rings, to the ends of the secondary pipe and secondary fitting, respectively.Type: GrantFiled: November 17, 2000Date of Patent: September 30, 2003Assignee: Ameron international CorporationInventors: Joie L. Folkers, Ralph S. Friedrich, Gordon G. Robertson
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Publication number: 20030178079Abstract: A pipe section for lining sewer pipelines along with a system of such pipe sections and method of lining a sewer pipeline are provided. The pipe section has a first end portion having a spigot. A protective ring is mounted around the spigot for transferring a load to the pipe section for axially moving the pipe section within a sewer pipeline. A second end portion of the pipe section is designed for surrounding the spigot of an adjacent pipe. A seal is formed is formed around the spigot for sealing with the second end portion of the adjacent pipe section.Type: ApplicationFiled: March 21, 2003Publication date: September 25, 2003Inventor: Ralph S. Friedrich
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Publication number: 20020004116Abstract: Abrasion resistant pipes of this invention comprise a structural wall formed from a filament wound fiberglass-reinforced material, and an elastomeric abrasion resistant material disposed along the inside and/or outside surface of such pipe. In a preferred embodiment, the structural pipe wall is formed from a filament wound fiberglass-reinforced epoxy resin material, and the abrasion resistant material is formed from a polyurea elastomer. Abrasion resistant pipes of this invention are manufactured using existing filament winding processes by first coating a mandrel with the elastomeric abrasion resistant material, and than winding the resin impregnated filament therearound.Type: ApplicationFiled: May 6, 1998Publication date: January 10, 2002Inventors: RALPH S. FRIEDRICH, COLIN G. HULL
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Patent number: 6273143Abstract: A steel strip laminate pipe having increased lap shear strength and peel off strength between the steel layers in the pipe and a method for making such a steel strip pipe are provided. Steel strips coated with a sol-gel or a silane adhesion promoter are wound over an inner lining to form steel layers bonded to each other in a steel strip laminate pipe. In an alternate embodiment, fiber fillers and resin are used to bond the steel layers in the pipe together. In further embodiment, glass sphere and resin are used to bond the steel layers together. The steel strips bonded together using continuous reinforced fiber filler or glass spheres may be coated with sol-gel or silane. In an alternate embodiment, the sol-gel or silane may also be mixed in the resin used to bond the steel layers together.Type: GrantFiled: November 17, 1999Date of Patent: August 14, 2001Assignee: Ameron International CorporationInventors: Ralph S. Friedrich, Garrett J. Endres, Qizhong Sheng, Lamont T. Inglehart, Stephan de Bie, Jeroen Van Brakel
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Patent number: 6026862Abstract: A double containment glass fiber pipe section is formed by a single winding operation. The pipe section may be a pipe or a pipe fitting. A section of primary pipe is wound and wrapped by a plastic tape. A permeable material layer is then wrapped around the wrapped primary section. One or more plastic tape layers are then wrapped over the permeable material layer followed by a winding of the secondary pipe section. The assembly is then cured forming a double containment pipe section having a permeable annulus having a radial thickness of about 1 mm. The permeable annulus is defined by the permeable material between the primary and the secondary sections. The permeable material allows for the flow of fluids within the annulus. A pair of wires may be helically wound within the annular space and can be used to detect leakage from the primary pipe section flowing within the annulus by monitoring changes in the capacitance or the resistance between the wires.Type: GrantFiled: February 14, 1997Date of Patent: February 22, 2000Assignee: Ameron International CorporationInventors: Ralph S. Friedrich, Joie L. Folkers, Brian M. Francis
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Patent number: 5957366Abstract: A helical weld servo controller for controlling the diameter of helically formed welded pipes adjusts the auxiliary hold down wheel position and the helix angle based on information provided by transducers regarding outgoing pipe diameter and by a laser vision device which generates weld gap and offset information.Type: GrantFiled: October 21, 1997Date of Patent: September 28, 1999Assignee: Ameron International CorporationInventor: Ralph S. Friedrich