Patents by Inventor James E. Henderson

James E. Henderson 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: 6267412
    Abstract: A thin window pocket insertion and removal device comprising an elongated body (12) having a first end (11) and a second end (13), a frictional element (19) adhered to one side of the elongated body (12), and a lip portion (18) protruding from the second end (13) of the elongated body (12). In some preferred embodiments, the device (10) further includes a handle portion (14) and a stop portion (30) protruding from the handle (14). The elongated body (12) is made of a flexible but sufficiently rigid material so as to resist warping and breakage during use or when not in use. Further, in some embodiments, the elongated body (12) includes one or more apertures (16), (17) all of which act to facilitate storage.
    Type: Grant
    Filed: June 10, 1998
    Date of Patent: July 31, 2001
    Inventor: James E. Henderson
  • Patent number: 4491784
    Abstract: A moisture-measuring device for measuring moisture of the ambient on one side of a solid wall comprises a piezoelectric crystal sonically coupled to the wall on a surface thereof facing the one side. A capacitor or other moisture sensitive impedance means is connected to the piezoelectric crystal over a network which is operable to provide a response indicative of the impedance of the capacitor upon excitation of the crystal at the resonant frequency of the circuit. The capacitor comprises at least two spaced plates which are exposed to the ambient. Change in moisture in the ambient thus causes change in capacitance of the capacitor. By sonically exciting the piezoelectric crystal from an opposite side of the wall, a measure of change in resonant frequency of the network can be made. This measurement is related to the moisture content of the ambient.
    Type: Grant
    Filed: August 31, 1982
    Date of Patent: January 1, 1985
    Assignee: The Babcock & Wilcox Company
    Inventors: John H. Flora, James E. Henderson