Patents by Inventor Steven D. Atmur

Steven D. Atmur 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: 8905735
    Abstract: According to one embodiment of the invention, an engine system comprises a housing, an outer gerotor, an inner gerotor, a tip inlet port, a face inlet port, and a tip outlet port. The housing has a first sidewall, a second sidewall, a first endwall, and a second endwall. The outer gerotor is at least partially disposed in the housing and at least partially defines an outer gerotor chamber. The inner gerotor is at least partially disposed within the outer gerotor chamber. The tip inlet port is formed in the first sidewall and allows fluid to enter the outer gerotor chamber. The face inlet port is formed in the first endwall and allows fluid to enter the outer gerotor chamber. The tip outlet port is formed in the second sidewall and allows fluid to exit the outer gerotor chamber.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: December 9, 2014
    Assignees: The Texas A&M University System, StarRotor Corportion
    Inventors: Mark T. Holtzapple, Andrew Rabroker, Michael Kyle Ross, Steven D. Atmur, Gary P. Noyes
  • Publication number: 20100247360
    Abstract: According to one embodiment of the invention, an engine system comprises a housing, an outer gerotor, an inner gerotor, a tip inlet port, a face inlet port, and a tip outlet port. The housing has a first sidewall, a second sidewall, a first endwall, and a second endwall. The outer gerotor is at least partially disposed in the housing and at least partially defines an outer gerotor chamber. The inner gerotor is at least partially disposed within the outer gerotor chamber. The tip inlet port is formed in the first sidewall and allows fluid to enter the outer gerotor chamber. The face inlet port is formed in the first endwall and allows fluid to enter the outer gerotor chamber. The tip outlet port is formed in the second sidewall and allows fluid to exit the outer gerotor chamber.
    Type: Application
    Filed: March 29, 2010
    Publication date: September 30, 2010
    Applicant: The Texas A&M University System
    Inventors: Mark T. Holtzapple, Andrew Rabroker, Michael Kyle Ross, Steven D. Atmur, Gary P. Noyes
  • Patent number: 7695260
    Abstract: According to one embodiment of the invention, an engine system comprises a housing, an outer gerotor, an inner gerotor, a tip inlet port, a face inlet port, and a tip outlet port. The housing has a first sidewall, a second sidewall, a first endwall, and a second endwall. The outer gerotor is at least partially disposed in the housing and at least partially defines an outer gerotor chamber. The inner gerotor is at least partially disposed within the outer gerotor chamber. The tip inlet port is formed in the first sidewall and allows fluid to enter the outer gerotor chamber. The face inlet port is formed in the first endwall and allows fluid to enter the outer gerotor chamber. The tip outlet port is formed in the second sidewall and allows fluid to exit the outer gerotor chamber.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: April 13, 2010
    Assignees: The Texas A&M University System, StarRotor Corporation
    Inventors: Mark T. Holtzapple, Andrew Rabroker, Michael Kyle Ross, Steven D. Atmur, Gary P. Noyes
  • Publication number: 20090324432
    Abstract: According to one embodiment of the invention, an engine system comprises a housing, an outer gerotor, an inner gerotor, a tip inlet port, a face inlet port, and a tip outlet port. The housing has a first sidewall, a second sidewall, a first endwall, and a second endwall. The outer gerotor is at least partially disposed in the housing and at least partially defines an outer gerotor chamber. The inner gerotor is at least partially disposed within the outer gerotor chamber. The tip inlet port is formed in the first sidewall and allows fluid to enter the outer gerotor chamber. The face inlet port is formed in the first endwall and allows fluid to enter the outer gerotor chamber. The tip outlet port is formed in the second sidewall and allows fluid to exit the outer gerotor chamber.
    Type: Application
    Filed: October 21, 2005
    Publication date: December 31, 2009
    Inventors: Mark T. Holtzapple, Andrew Rabroker, Michael Kyle Ross, Steven D. Atmur, Gary P. Noyes
  • Patent number: 5632320
    Abstract: A method of forming a breakage resistant, erosion resistant ceramic liner for a part comprising the steps of, forming a liner of a ceramic material containing pores; filling the pores with a pre-ceramic polymer resin; and, firing the liner saturated with a pre-ceramic polymer resin at a temperature and for a time which converts the resin into a ceramic within the pores. The liner can be mechanically attached, adhesively bonded or, a metal part can be cast onto the liner by placing the liner within the metal casting mold for the part as a sidewall or integral element thereof. The invention also includes method for producing parts and liners of fiber reinforced ceramic matrix composite by a resin transfer molding process or the like wherein fiber preforms are saturated with liquid pre-ceramic polymer resin. The preforms are then polymerized in a mold, the part removed from the mold, and then fired to transform the polymer to ceramic. The process can also be employed to form hollow parts such as manifolds.
    Type: Grant
    Filed: August 16, 1995
    Date of Patent: May 27, 1997
    Assignee: Northrop Grumman Corporation
    Inventors: Steven D. Atmur, Thomas E. Strasser
  • Patent number: 5560455
    Abstract: A structural fiber reinforced ceramic matrix composite material adapted for high temperature brake use is disclosed as used for the entirety of components of a brake system and as brake pads which can be used in the normal manner for brake pads. Also disclosed is a method of integrally molding the brake pads to the surfaces of metal brake parts.
    Type: Grant
    Filed: August 16, 1995
    Date of Patent: October 1, 1996
    Assignee: Northrop Grumman Corporation
    Inventors: Steven D. Atmur, Thomas E. Strasser