Patents by Inventor Jeffrey M. Farina
Jeffrey M. Farina 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: 11253917Abstract: Material processing systems are disclosed. Some systems include methods of eliminating or reducing defects in elongate workpieces that can undergo large deformations during processing. Some systems include apparatus configured to facilitate such large deformations while maintaining internal stresses (e.g., tensile stresses) below a threshold stress. Some disclosed systems pertain to powder extrusion techniques. Continuous and batch processing systems are disclosed.Type: GrantFiled: March 21, 2018Date of Patent: February 22, 2022Assignee: VIANT AS&O HOLDINGS, LLCInventors: Mark W. Broadley, James Alan Sago, John K. Eckert, Jeffrey M. Farina
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Publication number: 20180207724Abstract: Material processing systems are disclosed. Some systems include methods of eliminating or reducing defects in elongate workpieces that can undergo large deformations during processing. Some systems include apparatus configured to facilitate such large deformations while maintaining internal stresses (e.g., tensile stresses) below a threshold stress. Some disclosed systems pertain to powder extrusion techniques. Continuous and batch processing systems are disclosed.Type: ApplicationFiled: March 21, 2018Publication date: July 26, 2018Inventors: Mark W. Broadley, James Alan Sago, John K. Eckert, Jeffrey M. Farina
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Publication number: 20180029129Abstract: A method of pressure forming a brown part from metal and/or ceramic particle feedstocks includes: introducing into a mold cavity or extruder a first feedstock and one or more additional feedstocks or a green or brown state insert made from a feedstock, wherein the different feedstocks correspond to the different portions of the part; pressurizing the mold cavity or extruder to produce a preform having a plurality of portions corresponding to the first and one or more additional feedstocks, and debinding the preform. Micro voids and interstitial paths from the interior of the preform part to the exterior allow the escape of decomposing or subliming backbone component substantially without creating macro voids due to internal pressure. The large brown preform may then be sintered and subsequently thermomechanically processed to produce a net wrought microstructure and properties that are substantially free the interstitial spaces.Type: ApplicationFiled: October 12, 2017Publication date: February 1, 2018Inventors: Mark W. Broadley, James Alan Sago, Hao Chen, Edward J. Schweitzer, John Eckert, Jeffrey M. Farina
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Patent number: 9789543Abstract: A method of pressure forming a brown part from metal and/or ceramic particle feedstocks includes: introducing into a mold cavity or extruder a first feedstock and one or more additional feedstocks or a green or brown state insert made from a feedstock, wherein the different feedstocks correspond to the different portions of the part; pressurizing the mold cavity or extruder to produce a preform having a plurality of portions corresponding to the first and one or more additional feedstocks, and debinding the preform. Micro voids and interstitial paths from the interior of the preform part to the exterior allow the escape of decomposing or subliming backbone component substantially without creating macro voids due to internal pressure. The large brown preform may then be sintered and subsequently thermomechanically processed to produce a net wrought microstructure and properties that are substantially free the interstitial spaces.Type: GrantFiled: April 30, 2010Date of Patent: October 17, 2017Assignee: Accellent Inc.Inventors: Mark W. Broadley, James Alan Sago, Hao Chen, Edward J. Schweitzer, John Eckert, Jeffrey M. Farina
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Publication number: 20150044462Abstract: Material processing systems are disclosed. Some systems include methods of eliminating or reducing defects in elongate workpieces that can undergo large deformations during processing. Some systems include apparatus configured to facilitate such large deformations while maintaining internal stresses (e.g., tensile stresses) below a threshold stress. Some disclosed systems pertain to powder extrusion techniques. Continuous and batch processing systems are disclosed.Type: ApplicationFiled: September 19, 2014Publication date: February 12, 2015Inventors: Mark W. Broadley, James Alan Sago, John Eckert, Jeffrey M. Farina
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Patent number: 8840832Abstract: Material processing systems are disclosed. Some systems include methods of eliminating or reducing defects in elongate workpieces that can undergo large deformations during processing. Some systems include apparatus configured to facilitate such large deformations while maintaining internal stresses (e.g., tensile stresses) below a threshold stress. Some disclosed systems pertain to powder extrusion techniques. Continuous and batch processing systems are disclosed.Type: GrantFiled: March 2, 2011Date of Patent: September 23, 2014Assignee: Accellent Inc.Inventors: Mark W. Broadley, James Alan Sago, John Eckert, Jeffrey M. Farina
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Publication number: 20130218281Abstract: A method of pressure forming a brown part from metal and/or ceramic particle feedstocks includes: introducing into a mold cavity or extruder a first feedstock and one or more additional feedstocks or a green or brown state insert made from a feedstock, wherein the different feedstocks correspond to the different portions of the part; pressurizing the mold cavity or extruder to produce a preform having a plurality of portions corresponding to the first and one or more additional feedstocks, and debinding the preform. Micro voids and interstitial paths from the interior of the preform part to the exterior allow the escape of decomposing or subliming backbone component substantially without creating macro voids due to internal pressure. The large brown preform may then be sintered and subsequently thermomechanically processed to produce a net wrought microstructure and properties that are substantially free the interstitial spaces.Type: ApplicationFiled: April 30, 2010Publication date: August 22, 2013Applicant: ACCELLENT INC.Inventors: Mark W. Broadley, James Alan Sago, Hao Chen, Edward J. Schweitzer, John Eckert, Jeffrey M. Farina
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Publication number: 20120225989Abstract: Material processing systems are disclosed. Some systems include methods of eliminating or reducing defects in elongate workpieces that can undergo large deformations during processing. Some systems include apparatus configured to facilitate such large deformations while maintaining internal stresses (e.g., tensile stresses) below a threshold stress. Some disclosed systems pertain to powder extrusion techniques. Continuous and batch processing systems are disclosed.Type: ApplicationFiled: March 2, 2011Publication date: September 6, 2012Applicant: Accellent Inc.Inventors: Mark W. Broadley, James Alan Sago, John Eckert, Jeffrey M. Farina
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Publication number: 20100178194Abstract: The present invention provides a continuous powder extrusion method for making an article having a profile including an outer shape and optionally including one or more inner hollows. One or more bulk material powders and one or more binders are provided, and the bulk material powders and the binders are mixed to form a mixture. A die is provided, the die optionally including a mandrel having one or more shapes. The mixture is extruded through the die and the optional mandrel to produce a green form. The green form is debound to produce a brown form and the brown form is sintered to produce a densified form. The densified form is optionally processed using thermal, mechanical, and/or thermomechanical processing to produce a wrought form. The densified or wrought form is optionally cut to a length and/or finished using traditional metal finishing processes.Type: ApplicationFiled: January 12, 2009Publication date: July 15, 2010Applicant: Accellent, Inc.Inventors: Mark W. Broadley, John Eckert, Ray Rilling, Roger J. White, Jeffrey M. Farina, James Alan Sago
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Patent number: 5858556Abstract: A multilayer composite tubular structure for use as a stent in surgical procedures has an outer layer of biocompatible material, a middle layer of radiopaque material, and an inner layer of biocompatible material. The layers are metallurgically bonded, to form a composite stent which is ductile and permits large deformation without delamination between the biocompatible and radiopaque layers. The composite structure formed is visible on a fluoroscope, yet does not obstruct the details of the stent itself, or of the anatomical features surrounding the stent.A process of forming a multilayer composite tubular structure is also disclosed. A tube formed from radiopaque material is coaxially surrounded by a tube of biocompatible material. The tubes are simultaneously reduced, such as by tube drawing, swaging, or deep drawing, until a composite structure of a desirable diameter and wall thickness is formed. The tubes are then heat treated to cause diffusion bonding of the biocompatible and radiopaque layers.Type: GrantFiled: January 21, 1997Date of Patent: January 12, 1999Assignee: UTI CorporationInventors: John K. Eckert, Jeffrey M. Farina, Joseph P. Gadda, Jeffrey C. Kelly, John G. Thomas
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Patent number: 5729084Abstract: A cathode sheath for a thermionic electron-gun cathode. The sheath is substantially in the form of a hollow cylinder and has an outer surface and an inner surface, a central axis, a closed end and an axially-opposite open end, and a side wall extending between the closed end and the open end. The sheath is a continuous bimetallic laminate having a first layer of material forming the inner surface and a second layer of electron-emissive material overlying substantially the entirety of the first layer and forming the outer surface. The laminate has a preselected thickness at the closed end and has a thickness at the side wall which varies along the central axis.Type: GrantFiled: January 8, 1993Date of Patent: March 17, 1998Assignee: UTI CorporationInventors: John Richard Hale, Jeffrey M. Farina, Philip J. Koehler, Nicholas Maropis
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Patent number: 5422536Abstract: A cathode sheath for a thermionic electron-gun cathode. The sheath is substantially in the form of a hollow cylinder and has an outer surface and an inner surface, a central axis, a closed end and an axially-opposite open end, and a side wall extending between the closed end and the open end. The sheath is a continuous bimetallic laminate having a first layer of material forming the inner surface and a second layer of electron-emission (donor) material overlying substantially the entirety of the first layer and forming the outer surface. The laminate has a preselected thickness at the closed end and has a thickness at the side wall which varies along the central axis. The outer surface of the bimetallic laminate is substantially unreactive with oxygen whereas the inner surface is more readily reactive with oxygen.Type: GrantFiled: August 3, 1993Date of Patent: June 6, 1995Assignee: UTI CorporationInventors: John R. Hale, Jeffrey M. Farina
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Patent number: 5155639Abstract: A tape transport which is sized to fit within an 8 inch form factor or footprint, to accommodate prevailing mini/micro computer applications, and including operative components which are capable of automatically receiving IBM Corporation's 3480-type tape cartridge and the web of tape which it contains for appropriate introduction to the transport for presentation to a high performance magnetic recording head. This permits a use of the 3480 tape cartridge in a transport apparatus which is capable of fitting within an 8 inch form factor or footprint, and which is therfore acceptable for use in connection with many mini/micro computer applications, yet which is capable of providing high performance (parallel track, high transfer rate) storage and retrieval due to its compatability (and interchangeability) with the format used by the IBM Corporation in connection with its 3480 tape cartridge.Type: GrantFiled: November 3, 1988Date of Patent: October 13, 1992Assignee: U.S. Philips CorporationInventors: Sanford Platter, Robert T. Heath, Ron Permut, William J. Rueger, Jeffrey M. Farina, Gus Cotey, deceased, Arnold Schonfeld, Faquir C. Mittal, H. James Sheaffer, Curtis V. Brooks