Patents by Inventor Helmut Eckhardt

Helmut Eckhardt 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: 4899503
    Abstract: A dual-pane thermal window unit comprises two non-intersecting or, preferably, substantially parallel, spaced window panes, mounted in a window frame, a first of the panes having affixed thereto a first wall of an electro-optical liquid crystal cell providing a selected light transmittance, and a second of said panes delimiting, with a second wall of said cell, a space providing a thermal break. Each of the first and second walls comprises an electrically conductive film composed of plastic and having sufficient supporting strength to maintain the structural integrity of the cell. The window is light weight, economical to manufacture and efficient and reliable in operation.
    Type: Grant
    Filed: August 25, 1989
    Date of Patent: February 13, 1990
    Assignee: Allied-Signal Inc.
    Inventors: Ray H. Baughman, Ernest D. Buff, Helmut Eckhardt, Gerhard H. Fuchs
  • Patent number: 4893902
    Abstract: A dual-pane thermal window unit comprises two non-intersecting or, preferably, substantially parallel, spaced window panes, mounted in a window frame, a first of the panes having affixed thereto a first wall of an electro-optical liquid crystal cell providing a selected light transmittance, and a second of said panes delimiting, with a second wall of said cell, a space providing a thermal break. Each of the first and second walls comprises an electrically conductive film composed of plastic and having sufficient supporting strength to maintain the structural integrity of the cell. The window is light weight, economical to manufacture and efficient and reliable in operation.
    Type: Grant
    Filed: May 12, 1989
    Date of Patent: January 16, 1990
    Assignee: Allied-Signal Inc.
    Inventors: Ray H. Baughman, Ernest D. Buff, Helmut Eckhardt, Gerhard H. Fuchs
  • Patent number: 4879270
    Abstract: The invention relates to an improvement in a method of forming deposits of superconducting ceramics. Generally, such ceramics are formed by electrodepositing a mixture of metals of the type, and in proportions sufficient to be oxidized into ceramic, onto a substrate. The electrodeposited mixture is then oxidized under conditions sufficient to result in a super conducting ceramic deposit. The improvement resides in conducting the electrodeposition in a manner which results in a patterned electrodeposition prior to conducting oxidation.
    Type: Grant
    Filed: April 29, 1988
    Date of Patent: November 7, 1989
    Assignee: Allied-Signal Inc.
    Inventors: MacRae Maxfield, Ray H. Baughman, Zafar Igbal, Helmut Eckhardt
  • Patent number: 4870051
    Abstract: A method of forming films of superconducting ceramics is disclosed. The method involves electrodepositing a mixture of metals of the type which can be oxidized into superconducting ceramic. Thereafter, the metals deposited are oxidized to form the superconducting ceramic deposit. Deposits made by this method are also disclosed.
    Type: Grant
    Filed: April 29, 1988
    Date of Patent: September 26, 1989
    Assignee: Allied-Signal Inc.
    Inventors: MacRae Maxfield, Ray H. Baughman, Zafar Iqbal, Helmut Eckhardt
  • Patent number: 4848875
    Abstract: A dual-pane thermal window unit comprises two nonintersecting or, preferably, substantially parallel, spaced window panes, mounted in a window frame, a first of the panes having affixed thereto a first wall of an electro-optical liquid crystal cell providing a selected light transmittance, and a second of said panes delimiting, with a second wall of said cell, a space providing a thermal break. Each of the first and second walls comprises an electrically conductive film composed of plastic and having sufficient supporting strength to maintain the structural integrity of the cell. The window is light weight, economical to manufacture and efficient and reliable in operation.
    Type: Grant
    Filed: June 25, 1987
    Date of Patent: July 18, 1989
    Assignee: Allied-Signal Inc.
    Inventors: Ray H. Baughman, Ernest D. Buff, Helmut Eckhardt, Gerhard H. Fuchs
  • Patent number: 4646066
    Abstract: A device for monitoring environmental exposure includes an element whose electrical properties change, in a predetermined way, in response to the environmental exposure. The element may be part of a tuned circuit or of a shield for a tuned circuit. In either case, when the tuned circuit is interrogated, preferably by an r.f. or microwave signal, it emits a signal whose intensity depends on the electrical properties of the element. Thus, an incremental environmental exposure can be measured by a change in the signal intensity. The device is particularly useful for monitoring the condition of perishable materials, because it can be located with the perishable inside a packaging material during both storage and interrogation.
    Type: Grant
    Filed: June 27, 1985
    Date of Patent: February 24, 1987
    Assignee: Allied Corporation
    Inventors: Ray H. Baughman, Ronald L. Elsenbaumer, Zafar Iqbal, Granville G. Miller, Helmut Eckhardt
  • Patent number: 4502981
    Abstract: Polyacetylene doped with potassium or rubidium cations (and optionally with other alkali metal cations) is heat treated at 60.degree.-400.degree. C., preferably 100.degree.-250 .degree. C., to achieve greatly enhanced room temperature conductivity. Products with relative conductivities 150%, 300%, 450% or more of the conductivity prior to heat treating are obtained, with room-temperature conductivities of 300 S/cm, 450 S/cm, or higher.
    Type: Grant
    Filed: March 16, 1983
    Date of Patent: March 5, 1985
    Assignee: Allied Corporation
    Inventors: Philippe G. Delannoy, Granville G. Miller, Helmut Eckhardt, Ray H. Baughman