Patents by Inventor Thomas G. MacMackin

Thomas G. MacMackin 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: 20110088964
    Abstract: A stethoscope having a headpiece with a conical body extending uniformly along an oblique axis from a first circular opening of a first diameter to a second opening of a second diameter and having an elliptical cross-section perpendicular to said oblique axis, where the second diameter is smaller than the first diameter and the axis intersects the first opening at an acute angle. The stethoscope also includes first and second sound amplifiers removably interconnected to the ends of the ear tubes to allow a user to amplify sounds or listen normally as desired.
    Type: Application
    Filed: December 23, 2010
    Publication date: April 21, 2011
    Applicant: TGMDVM, INC.
    Inventor: Thomas G. MacMackin
  • Patent number: 7866437
    Abstract: A stethoscope with a figure-eight configuration designed for one-handed operation and further comprising improvement to the headpiece resonance chamber. The ear tubes of the stethoscope are roughly S-shaped and together form a figure eight design. The lower portion of each ear tube is connected by a resistant force mechanism that maintains the stethoscope in the closed configuration. By applying one-handed compressive force to the resistant force mechanism attached to the lower portion of the stethoscope's figure-eight construction, the earpieces are separated and the stethoscope adopts the open configuration. Both the headpiece and the diaphragm are interchangeable to allow a variety of different shapes and sizes.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: January 11, 2011
    Assignee: TGMDVM, Inc.
    Inventor: Thomas G. MacMackin
  • Publication number: 20100078257
    Abstract: A stethoscope with a figure-eight configuration designed for one-handed operation and further comprising improvement to the headpiece resonance chamber. The ear tubes of the stethoscope are roughly S-shaped and together form a figure eight design. The lower portion of each ear tube is connected by a resistant force mechanism that maintains the stethoscope in the closed configuration. By applying one-handed compressive force to the resistant force mechanism attached to the lower portion of the stethoscope's figure-eight construction, the earpieces are separated and the stethoscope adopts the open configuration. Both the headpiece and the diaphragm are interchangeable to allow a variety of different shapes and sizes.
    Type: Application
    Filed: September 30, 2008
    Publication date: April 1, 2010
    Applicant: TGMDVM, INC.
    Inventor: Thomas G. MacMackin