Compensated Air Gap Patents (Class 310/347)
  • Patent number: 7779529
    Abstract: A coupling between a device and a mating part includes an elastic material and perhaps a tensioner coupled to the elastic material. The elastic material is wrapped around at least part of the device. The tensioner or other method is used to stretch the elastic material, thereby reducing the thickness of the elastic material. With the thickness of the elastic material reduced by the stretching, the device is inserted into a hole in a mating part. Then the tension on the elastic material is removed, allowing the elastic material to increase in thickness, so as to fill at least part of the gap between the device and the mating part. The coupling may act as an effective heat transfer device for transmitting (by conduction) heat produced by the heat-producing device, to the mating part, which may act as, or be thermally coupled to, a heat sink.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: August 24, 2010
    Assignee: Raytheon Company
    Inventors: Alfred Sorvino, Hilario Tejeda, Randy Thompson
  • Patent number: 7560852
    Abstract: A piezoelectric actuator includes a supporting member in which pressure chambers are formed, a vibration plate which is joined to a joining section of the supporting member, a piezoelectric layer formed on the vibration plate, and an FPC provided on the piezoelectric layer. A contact section of an electrode formed on the piezoelectric layer and a terminal section of the FPC are electrically connected via a bump formed on the terminal section. A recess is formed on an upper surface of the supporting member right below the bump. While joining the piezoelectric layer and a wire member, any damage of the piezoelectric layer and any poor connection do not occur.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: July 14, 2009
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Hiroto Sugahara
  • Patent number: 7467457
    Abstract: A coupling between a device and a mating part includes an elastic material and perhaps a tensioner coupled to the elastic material. The elastic material is wrapped around at least part of the device. The tensioner or other method is used to stretch the elastic material, thereby reducing the thickness of the elastic material. With the thickness of the elastic material reduced by the stretching, the device is inserted into a hole in a mating part. Then the tension on the elastic material is removed, allowing the elastic material to increase in thickness, so as to fill at least part of the gap between the device and the mating part. The coupling may act as an effective heat transfer device for transmitting (by conduction) heat produced by the heat-producing device, to the mating part, which may act as, or be thermally coupled to, a heat sink.
    Type: Grant
    Filed: July 14, 2004
    Date of Patent: December 23, 2008
    Assignee: Raytheon Company
    Inventors: Alfred Sorvino, Hilario Tejeda, Randy Thompson
  • Patent number: 7358643
    Abstract: A piezoelectric actuator includes a supporting member in which pressure chambers are formed, a vibration plate which is joined to a joining section of the supporting member, a piezoelectric layer formed on the vibration plate, and an FPC provided on the piezoelectric layer. A contact section of an electrode formed on the piezoelectric layer and a terminal section of the FPC are electrically connected via a bump formed on the terminal section. A recess is formed on an upper surface of the supporting member right below the bump. While joining the piezoelectric layer and a wire member, any damage of the piezoelectric layer and any poor connection do not occur.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: April 15, 2008
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Hiroto Sugahara
  • Patent number: 7164222
    Abstract: The specification discloses embodiments of an apparatus comprising a film bulk acoustic resonator (FBAR) filter comprising a piezoelectric membrane having a portion thereof sandwiched between a first electrode and a second electrode, the piezoelectric membrane being suspended from at least two edges thereof, and a heat transfer layer placed on the piezoelectric membrane surrounding, but not in contact with, the first electrode. Also disclosed are embodiments of a process comprising sandwiching a portion of the piezoelectric membrane between a first electrode and a second electrode, suspending a piezoelectric membrane from at least two edges thereof, and placing a heat transfer layer on the piezoelectric membrane surrounding, but not in contact with, the first electrode. Other embodiments are disclosed and claimed.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: January 16, 2007
    Assignee: Intel Corporation
    Inventor: Li-Peng Wang
  • Patent number: 7154212
    Abstract: An acceleration insensitive piezo-microresonator provides substantially reduced acceleration sensitivity with a plano—plano piezo-microresonator, upper gap and lower gap embedded in a rigid structural supporting member holding major surfaces of the piezo-microresonator firm and steady. The piezo-microresonator has neither electrodes on its surfaces nor contacts with any electrodes. Electrodes are doped regions incorporated into the support member. The upper and lower gaps are adjacent to the major surfaces of the piezo-microresonator, permitting it to vibrate freely. The support member surrounds and supports the plano—plano piezo-microresonator plate, upper gap and lower gap, maintaining a constant upper gap height and lower gap height. The electrodes provide a thickness-directed electrical field exciting the piezo-microresonator. A method of desensitizing a resonant frequency of a piezo-microresonator to acceleration stresses is also provided.
    Type: Grant
    Filed: January 5, 2005
    Date of Patent: December 26, 2006
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: John A. Kosinski
  • Patent number: 5691582
    Abstract: A can body maker wherein the redraw sleeve is provided with an plurality of air escape openings to provide for the passage of air as the ram moves through the redraw sleeve and wherein the redraw sleeve is attached to the armature of a linear motor which includes a generally cylindrical armature which moves within a surrounding, coaxial stator. The armature includes a plurality of axially spaced apart armature salient pole rings separated by permanent magnet rings. The stator includes a plurality of axially spaced apart stator salient poles which each form a ring radially spaced from and surrounding a portion of the armature. The axial spacing between adjacent stator salient pole rings is one-third greater than the axial spacing between the armature salient pole rings, and an electromagnetic coil extends circumferentially within the stator around the armature between each stator salient pole ring.
    Type: Grant
    Filed: January 31, 1995
    Date of Patent: November 25, 1997
    Assignee: Coors Brewing Company
    Inventors: Phillip John Lucas, Crawford R. Meeks