Patents by Inventor Christopher E. Schadewald

Christopher E. Schadewald 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).

  • Publication number: 20080143105
    Abstract: In one embodiment, a high-pressure hose nipple includes a nipple body adapted on a first end for mating assembly with and providing a path of fluid communication to external piping, the nipple body adapted on a second end for selective assembly with and providing a path of fluid communication to other external piping, where a channel through the body provides a path of fluid communication between the first end and the second end, and a cylindrical bore disposed within the body at the second end where a diameter of the cylindrical bore exceeds an outside diameter of the external piping so that the external piping may cooperate with the hose nipple in a linear amount exceeding the outside diameter of the external piping.
    Type: Application
    Filed: September 24, 2007
    Publication date: June 19, 2008
    Applicant: Eaton Corporation
    Inventors: Timothy F. Carey, Christopher E. Schadewald
  • Patent number: 6481756
    Abstract: A coupling assembly for use in connecting fluid lines having a unitary female body and a male coupling portion. The female body includes at least two passageways having frangible diaphragms. The male coupling portion includes at least two male coupling halves having frangible diaphragms. Cutting devices are positioned in the passageways of the female body. As the male coupling portion is moved toward the female body by a bracket and fastening device, the diaphragms are ruptured to allow fluid flow between the lines.
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: November 19, 2002
    Assignee: Parker-Hannifin Corporation
    Inventors: John C. Field, John C. Stemmler, Michael P. Wells, Christopher E. Schadewald, Gregory A. Haunhorst
  • Patent number: 6425571
    Abstract: A valve for controlling fluid flow is provided. The valve includes an actuating stem for controlling the flow of fluid through the valve, a valve member with a positioning formation and an opening for permitting fluid flow, a valve body portion, and at least one insert or compressor for retaining the valve member within the valve body portion. The valve body portion is comprised of a formable material—such as a metal—that is formed about the valve member in connection with an applied load. The valve body portion further includes a first open end with a first diameter; a second open end with a second diameter that is sufficiently large enough to permit insertion of the valve member; a stem opening for receiving the actuation stem; and an internal member-receiving portion for receiving the valve member in proximity with the stem opening.
    Type: Grant
    Filed: August 9, 2000
    Date of Patent: July 30, 2002
    Assignee: Parker-Hannifin Corporation
    Inventors: Christopher E. Schadewald, Michael P. Wells, Ryan J. Williams
  • Patent number: 6382678
    Abstract: A coupling assembly for use in connecting fluid lines having a unitary female body and a male coupling portion. The female body includes at least two passageways having frangible diaphragms. The male coupling portion includes at least two male coupling halves having frangible diaphragms. Cutting devices are positioned in the passageways of the female body. As the male coupling portion is moved toward the female body by a bracket and fastening device, the diaphragms are ruptured to allow fluid flow between the lines.
    Type: Grant
    Filed: September 16, 1999
    Date of Patent: May 7, 2002
    Assignee: Parker-Hannifin Corporation
    Inventors: John C. Field, John C. Stemmler, Michael P. Wells, Christopher E. Schadewald, Gregory A. Haunhorst
  • Patent number: 6041818
    Abstract: A valve assembly includes (1) a process valve having an axially adjustable valve stem positioned in a passageway thereof and (2) a service valve for receiving and retaining a male end of the process valve. The valve stem has a poppet mounted for axial movement therein between a first axial position closing the valve stem and a second axially position opening the valve stem. The service adapter has an axially extending pin movable from a retracted position to an extended position engaging and opening the poppet of the axially adjustable valve stem.
    Type: Grant
    Filed: August 25, 1998
    Date of Patent: March 28, 2000
    Assignee: Aeroquip Corporation
    Inventors: Christopher E. Schadewald, Michael P. Wells
  • Patent number: 5226682
    Abstract: A coupling assembly for connecting two members that includes an annular locking ring. The assembly further includes a first member and a second member. The first member has an exterior surface having a groove for receiving the locking means. The second member has an inner surface having a cavity for receiving the locking means. The first and second members are secured together when the locking ring is engaged in the groove and the cavity.
    Type: Grant
    Filed: July 21, 1992
    Date of Patent: July 13, 1993
    Assignee: Aeroquip Corporation
    Inventors: William C. Marrison, Edward C. Lewis, Christopher E. Schadewald, David S. Densel