Patents by Inventor Marcus P. Borom
Marcus P. Borom 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).
-
Patent number: 5048732Abstract: A transfer tube is produced comprised of a high density ceramic oxide tube having directly bonded to its outer surface wall a low density ceramic oxide shell.Type: GrantFiled: May 24, 1990Date of Patent: September 17, 1991Assignee: General Electric CompanyInventors: Marcus P. Borom, Lawrence E. Szala, Milivoj K. Brun, Steven A. Miller, David P. Mourer
-
Patent number: 5015540Abstract: Fibrous material is coated with boron nitride and a silicon-wettable material, the coated fibrous material is admixed with an infiltration-promoting material which is at least partly elemental carbon and the mixture is formed into a preform which is infiltrated with molten silicon producing a composite containing boron nitride coated fibrous material.Type: GrantFiled: June 1, 1987Date of Patent: May 14, 1991Assignee: General Electric CompanyInventors: Marcus P. Borom, William B. Hillig, Raj N. Singh, William A. Morrison, Leonard V. Interrante
-
Patent number: 5011049Abstract: A transfer tube is produced comprised of a high density ceramic oxide tube having directly bonded to its outer surface wall a low density ceramic oxide shell.Type: GrantFiled: April 17, 1989Date of Patent: April 30, 1991Assignee: General Electric CompanyInventors: Marcus P. Borom, Lawrence E. Szala, Milivoj Brun, Steven A. Miller, David P. Mourer
-
Patent number: 5004629Abstract: A transfer tube is produced comprised of a high density ceramic oxide tube having a low density multi-layered ceramic oxide shell directly bonded to its outer surface wall.Type: GrantFiled: May 23, 1990Date of Patent: April 2, 1991Assignee: General Electric CompanyInventors: Paul S. Svec, Marcus P. Borom, Lawrence E. Szala, Milivoj K. Brun, Steven A. Miller, David P. Mourer
-
Patent number: 4993607Abstract: An integral transfer tube is produced comprised of a hollow high density ceramic oxide tube having its outer surface wall surrounded by a low density ceramic oxide shell, and having a heating element comprised of a heating wound portion and two end portions wherein the wound portion is intermediate the tube and the shell, and wherein at least a sufficient amount of the end portions are exposed for electrical attachment.Type: GrantFiled: April 23, 1990Date of Patent: February 19, 1991Assignee: General Electric CompanyInventors: Milivoj K. Brun, Marcus P. Borom, Steven A. Miller, Lawrence E. Szala, Paul S. Svec
-
Patent number: 4978039Abstract: An integral transfer tube is produced comprised of a hollow high density ceramic oxide tube having its outer surface wall surrounded by a low density multilayered ceramic oxide shell, and having a heating element comprised of a heating wound portion and two end portions wherein the wound portion is intermediate the tube and the shell, and wherein at least a sufficient amount of the end portions are exposed for electrical attachment.Type: GrantFiled: October 27, 1989Date of Patent: December 18, 1990Assignee: General Electric CompanyInventors: Milivoj K. Brun, Marcus P. Borom, Steven A. Miller, Lawrence E. Szala, Paul S. Svec
-
Patent number: 4966201Abstract: A transfer tube is produced comprised of a high density ceramic oxide tube having a low density multi-layered ceramic oxide shell directly bonded to its outer surface wall.Type: GrantFiled: June 16, 1989Date of Patent: October 30, 1990Assignee: General Electric CompanyInventors: Paul S. Svec, Marcus P. Borom, Lawrence E. Szala, Milivoj K. Brun, Steven A. Miller, David P. Mourer
-
Patent number: 4946082Abstract: An integral transfer tube is produced comprised of a hollow high density ceramic oxide tube having its outer surface wall surrounded by a low density ceramic oxide shell, and having a heating element comprised of a heating wound portion and two end portions wherein the wound portion is intermediate the tube and the shell, and wherein at least a sufficient amount of the end portions are exposed for electrical attachment.Type: GrantFiled: July 10, 1989Date of Patent: August 7, 1990Assignee: General Electric CompanyInventors: Milivoj K. Brun, Marcus P. Borom, Steven A. Miller, Lawrence E. Szala, Paul S. Svec
-
Patent number: 4731349Abstract: High-strength, fine-grain, multi-phase substantially crystalline sintered ceramic bodies are produced by a process comprising the steps of cold pressing, followed by sintering at a high temperature, of a mixture of different powdered ceramic materials containing non-inhibitory components and a source of inhibitory components that can chemically interact at elevated temperatures generate gases which hinder densification or form phases undesirable for sintering provided that there is also included in the mixture an amount of a source of a component co-reactive with the gases produced by the inhibitory components at elevated temperature to achieve efficient densification and retention of properties in the sintered body.Type: GrantFiled: August 26, 1985Date of Patent: March 15, 1988Assignee: General Electric CompanyInventors: Minyoung Lee, Lawrence E. Szala, Marcus P. Borom
-
Patent number: 4490319Abstract: High-strength, fine-grain multi-phase substantially crystalline sintered ceramic bodies are produced by a process comprising the steps of cold pressing, followed by sintering at a high temperature, the temperature increase to maximum sintering temperature being accomplished by the use of a heating rate in excess of about 100.degree. C./minute.Type: GrantFiled: October 26, 1983Date of Patent: December 25, 1984Assignee: General Electric CompanyInventors: Minyoung Lee, Marcus P. Borom, Lawrence E. Szala
-
Patent number: 4317685Abstract: A method for removing scale, particularly oxide scale, from a surface of a high temperature alloy, the surface having been exposed to high temperature conditions, employs an aqueous alkaline hydroxide solution in contact with the scale in an autoclave. The solution is heated in the autoclave in a non-oxidizing atmosphere at a temperature in the range of about 200.degree.-340.degree. C. while providing relative movement between the solution and the scale. Thereafter, the scale reaction product is flushed from the surface to remove the alkaline solution.Type: GrantFiled: June 6, 1980Date of Patent: March 2, 1982Assignee: General Electric CompanyInventors: Pritam L. Ahuja, Marcus P. Borom
-
Patent number: 4280932Abstract: Compacted, granular, fused magnesia used as thermally-conducting electrical insulation in tubular, electrical resistance elements is substantially improved in thermal conductivity through the addition of 0.1 to 10.0 percent of a glass comprising CaO, B.sub.2 O.sub.3 and optionally Al.sub.2 O.sub.3.Type: GrantFiled: May 22, 1980Date of Patent: July 28, 1981Assignee: General Electric CompanyInventors: Marcus P. Borom, John Schultz, Jr.
-
Patent number: 4246215Abstract: A method of firing alumina-based ceramic core compacts includes firing the compact in a controlled atmosphere in a closed retort whereby at least a portion of the gas of the controlled atmosphere is caused to flow down, around and through the porous compact by aspiration.Type: GrantFiled: June 6, 1979Date of Patent: January 20, 1981Assignee: General Electric CompanyInventors: Wayne D. Pasco, Frederic J. Klug, Marcus P. Borom
-
Patent number: 4237559Abstract: A composite high and low density fired ceramic article is employed as a bone implant. High density ceramic material forms the core or structural member of the composite. An integral inner portion of ceramic material having interconnected porosity encourages the growth of new bone marrow. An integral outer portion of porous ceramic material provides a means for bone and tissue attachment.Type: GrantFiled: May 11, 1979Date of Patent: December 9, 1980Assignee: General Electric CompanyInventor: Marcus P. Borom
-
Patent number: 4234786Abstract: Compacted, granular, fused magnesia used as thermally-conducting electrical insulation in tubular, electrical resistance elements is substantially improved in thermal conductivity through the addition of 0.1 to 10.0 percent of a glass comprising CaO, B.sub.2 O.sub.3 and optionally Al.sub.2 O.sub.3 and method of making said tubular, electrical resistance elements.Type: GrantFiled: February 12, 1979Date of Patent: November 18, 1980Assignee: General Electric CompanyInventors: Marcus P. Borom, John Schultz, Jr.
-
Patent number: 4219328Abstract: A setter is configured to minimize distortion of a core supported during firing. The configuration also provides for adequate gas flow both to envelope the core and to provide an aspiration effort to cause the gas to be drawn downwardly through and about the core structure to the interior of the setter to enhance the removal of reaction products therefrom. A retort, preferably made of molybdenum, is provided to enhance the effects of the setter configuration.Type: GrantFiled: June 6, 1979Date of Patent: August 26, 1980Assignee: General Electric CompanyInventors: Wayne D. Pasco, Frederic J. Klug, Marcus P. Borom
-
Patent number: 4197104Abstract: Ferrite particles having a plurality of distinct Curie temperatures are encapsulated within a glass matrix to provide tagging material especially useful in identifying explosive materials even after detonation. In one embodiment, phosphor is dispersed within the glass matrix or an intrinsically fluorescent glass is employed to facilitate visual identification and collection of tag particles following detonation. The tags are also usable in tagging other articles, especially where harsh environmental conditions are likely to be encountered.Type: GrantFiled: September 21, 1978Date of Patent: April 8, 1980Assignee: General Electric CompanyInventors: Casimir W. Krystyniak, Marcus P. Borom
-
Patent number: 4162173Abstract: Cores made of either Y.sub.2 O.sub.3, Y.sub.3 Al.sub.5 O.sub.12, LaAlO.sub.3, MgAl.sub.2 O.sub.4 or Al.sub.2 O.sub.3 are removed from castings of advanced superalloy materials by immersion in a molten salt bath of either Li.sub.3 AlF.sub.6 or a mixture of CaF.sub.2 -NaF.Type: GrantFiled: September 19, 1977Date of Patent: July 24, 1979Assignee: General Electric CompanyInventors: Ronald H. Arendt, Marcus P. Borom, Irvin C. Huseby, Frederic J. Klug
-
Patent number: 4141781Abstract: Caustic solutions are employed in an autoclave process to rapidly remove cores made of .beta.-Al.sub.2 O.sub.3 from directionally solidified eutectic alloy and superalloy materials.Type: GrantFiled: October 6, 1977Date of Patent: February 27, 1979Assignee: General Electric CompanyInventors: Charles D. Greskovich, Marcus P. Borom
-
Patent number: 4134777Abstract: Caustic solutions are employed in an autoclave process to rapidly remove the cores made of Y.sub.2 O.sub.3 from directionally solidified eutectic alloy and superalloy materials.Type: GrantFiled: October 6, 1977Date of Patent: January 16, 1979Assignee: General Electric CompanyInventor: Marcus P. Borom