Patents by Inventor Cynthia Ann Gruensfelder

Cynthia Ann Gruensfelder 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: 6260567
    Abstract: A mission adaptive inlet (42) for an aircraft (40) has a rigid lip panel (56) pivotally attached to an inlet (42) of the aircraft (40). An actuation mechanism is coupled to the rigid lip panel (56) and causes the rigid lip panel (56) to pivot from a first position to a second position. A reinforced elastomer system (48) is connected the rigid lip panel and the inlet (42).
    Type: Grant
    Filed: March 28, 2000
    Date of Patent: July 17, 2001
    Assignee: The Boeing Company
    Inventors: Cynthia Ann Gruensfelder, Robert Henry Wille
  • Patent number: 6231006
    Abstract: A mission adaptive inlet (42) for an aircraft (40) has a rigid lip panel (56) pivotally attached to an inlet (42) of the aircraft (40). An actuation mechanism is coupled to the rigid lip panel (56) and causes the rigid lip panel (56) to pivot from a first position to a second position. A reinforced elastomer system (48) is connected the rigid lip panel and the inlet (42).
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: May 15, 2001
    Assignee: McDonnell Douglas Corporation
    Inventors: Cynthia Ann Gruensfelder, Robert Henry Wille
  • Patent number: 6213433
    Abstract: A leading edge (50) for an aircraft has a hard durometer elastomer tip (52). An elastomer panel (54) has a first end attached to the hard durometer elastomer tip (52) and has a plurality of reinforcing members capable of freely sliding inside the elastomer panel (54). A rigid block (58) is attached to a second end of the elastomer panel (54) and is attached to a structure (62) of the aircraft.
    Type: Grant
    Filed: March 14, 2000
    Date of Patent: April 10, 2001
    Assignee: The Boeing Company
    Inventors: Cynthia Ann Gruensfelder, Lawrence O. Brase, Jr.
  • Patent number: 6089505
    Abstract: A mission adaptive inlet (42) for an aircraft (40) has a rigid lip panel (56) pivotally attached to an inlet (42) of the aircraft (40). An actuation mechanism is coupled to the rigid lip panel (56) and causes the rigid lip panel (56) to pivot from a first position to a second position. A reinforced elastomer system (48) is connected the rigid lip panel and the inlet (42).
    Type: Grant
    Filed: July 22, 1997
    Date of Patent: July 18, 2000
    Assignee: McDonnell Douglas Corporation
    Inventors: Cynthia Ann Gruensfelder, Robert Henry Wille
  • Patent number: 6079667
    Abstract: An auxiliary inlet (60) for a jet engine has a first rod block (62) attached to a first side (64) of a hole (66) in a skin (68) of an inlet of the jet engine. A second rod block (80) is attached to an opposing side (82) of the hole (66) in the skin (68) of the inlet of the jet engine. A first reinforced elastomer section (70) is attached to the first rod block (62). A center beam (74) has a first side attached to the first reinforced elastomer section (70). A second reinforced elastomer section (78) is attached to the second rod block (80) and attached to the center beam (74). An actuation system (88, 90) is connected to an intake end of the center beam (74). The actuation system (88, 90) moves the center beam (74) from a first in-moldline position to a second out-of-moldline position.
    Type: Grant
    Filed: June 9, 1998
    Date of Patent: June 27, 2000
    Assignee: McDonnell Douglas Corporation
    Inventor: Cynthia Ann Gruensfelder
  • Patent number: 6076766
    Abstract: A wing fold (50) for an aircraft has inner wing (74) connected to the aircraft and an outer wing (76) connected to the inner wing (74) by a hinge (72). An actuator (72) is capable of rotating the outer wing (76) over ninety degrees with respect to the inner wing (74). A first reinforced elastomer panel (54) is connected between a lower surface (52) of the inner wing (74) and a lower surface (58) of the outer wing (76).
    Type: Grant
    Filed: July 1, 1998
    Date of Patent: June 20, 2000
    Assignee: McDonnell Douglas Corp.
    Inventor: Cynthia Ann Gruensfelder
  • Patent number: 6068215
    Abstract: An aircraft (50) with a variable cargo bay (52) includes a frame (60) having an inner surface and an outer skin (64) covering the frame (60). The frame (60) has a pair of faceted fairings (54, 56) coupled to the frame (60) and a door assembly (58) between the pair of faceted fairings (54, 56). The door assembly (58) has an inner surface connected to a linkage mechanism (66). The linkage mechanism (66) couples the inner surface of the frame (60) and the inner surface of the door assembly (58). A conformable surface (70) is connected between the skin (64) of the frame (60) and the door assembly (58).
    Type: Grant
    Filed: December 21, 1995
    Date of Patent: May 30, 2000
    Assignee: McDonnall Douglas
    Inventors: Cynthia Ann Gruensfelder, Robert Henry Wille, James Richard Ellis, Joseph Brice Diller
  • Patent number: 5979828
    Abstract: An apparatus (30) for eliminating gaps (20) in a door of an airplane has an elastaueric bladder (32) bonding along an edge (24) of a door gap (20). The elastomeric bladder (32) includes a port providing for access to an interior cavity (34). A pneumatic actuator is coupled to the port.
    Type: Grant
    Filed: April 30, 1997
    Date of Patent: November 9, 1999
    Assignee: McDonnell Douglas
    Inventors: Cynthia Ann Gruensfelder, Micael Watson Geiger, Jack Howard Jacobs, Robert Henry Wille
  • Patent number: 5975463
    Abstract: An aircraft (50) with a variable cargo bay (52) includes a frame (60). A pair of fairing assemblies (54, 56) is coupled to the frame (60). Each of the pair of fairing assemblies (54, 56) has a ramp (100) connected to the frame (60) by a front sliding pivoting mechanism (106). A door assembly (58) is between the pair of fairing assemblies (54, 56) and is coupled to the frame (60).
    Type: Grant
    Filed: December 21, 1995
    Date of Patent: November 2, 1999
    Assignee: McDonnell Douglas
    Inventors: Cynthia Ann Gruensfelder, Robert Henry Wille
  • Patent number: 5931422
    Abstract: An active reinforced elastomer system (50) has a rigid attachment block (56). A stiffening member (58) slides through an opening in the rigid attachment block (56). A shape memory alloy structure (62) is attached to the rigid attachment block (56). An elastomer panel (52) is attached to the rigid attachment block (56) and covers the stiffening member (58).
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: August 3, 1999
    Assignee: McDonnell Douglas
    Inventors: Michael Watson Geiger, Cynthia Ann Gruensfelder, Jack Howard Jacobs