Patents by Inventor John G. Baumberger

John G. Baumberger 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: 5297967
    Abstract: An electrical interconnector for interconnecting two circuit members wherein the interconnector comprises a dielectric member and at least one conductive element. The conductive element includes a base portion retained within the dielectric and at least one projecting helical portion for engaging a conductor of one of the circuit members. Preferably, dendritic elements (e.g., palladium) are formed on the terminal ends of the helical portions for providing debris removal. The form of connection between the helical portion and the conductor is of the non-wiping type. An electrical assembly including this interconnector is also described.
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: March 29, 1994
    Assignee: International Business Machines Corporation
    Inventors: John G. Baumberger, Fraser P. Donlan, Jr., James R. Petrozello
  • Patent number: 5259781
    Abstract: A connector assembly has a plurality of electrical circuit members and interposer frames with resilient contact members pressed together by a centrally located actuation screw. The actuation screw is supported within a threaded hole in an actuation bar on one side of one of the circuit members. Turning the actuation screw in its threaded hole causes various parts of the connector assembly to be pressed together simultaneously under an evenly distributed load. A load distribution plate located between the actuation screw and the nearest circuit member reduces the bending stresses in that circuit member. Alignment bushings and pins extending through openings in the circuit members maintain the various parts of the assembly in proper alignment while the actuation screw is being turned.
    Type: Grant
    Filed: November 18, 1992
    Date of Patent: November 9, 1993
    Assignee: International Business Machines Corporation
    Inventors: John G. Baumberger, James R. Bentlage, Fletcher W. Chapin, Kishor V. Desai, Alan D. Knight, Thomas G. Macek
  • Patent number: 5230632
    Abstract: An electrical contact and connector assembly utilizing same wherein the contact includes a first, highly conductive element (e.g., oxygen-free copper) having a first modulus of elasticity and including a pair of contacting portions each of which is designed for engaging respective conductors on first and second circuit members, and a second, spring element (e.g., stainless steel) operatively coupled to the first conductive element and having a second modulus of elasticity greater than that of the first, conductive element. A connector assembly is also defined which includes a common housing for having the contact (preferably several) located therein. The housing is metallic (e.g., stainless steel) and includes a coating of suitable dielectric material on appropriate surfaces thereof so as to prevent electrical shorting with the internally contained contacts. A preferred coating for this purpose is polyimide.
    Type: Grant
    Filed: December 19, 1991
    Date of Patent: July 27, 1993
    Assignee: International Business Machines Corporation
    Inventors: John G. Baumberger, James J. Kershaw, James R. Petrozello
  • Patent number: 5228862
    Abstract: An electrical connector for interconnecting opposed circuit members (e.g., modules, printed circuit boards) using an interim housing on which are positioned a pair of flexible circuit members which are capable of being expanded to provide desired connections. Expansion is accomplished through the application of pressurized fluid to the housing to cause expansion. Such a fluid (liquid or gas) may also cool the structure during operation. The respective conductors of the expandable flexible circuit members are electrically coupled using a common circuitized element (e.g., a thin dielectric having opposed arrays of conductive members thereon). Means for aligning the connector of the invention with the respective electrical circuit members being connected is also provided.
    Type: Grant
    Filed: August 31, 1992
    Date of Patent: July 20, 1993
    Assignee: International Business Machines Corporation
    Inventors: John G. Baumberger, James R. Petrozello
  • Patent number: 4082263
    Abstract: Document feeding apparatus for feeding original documents of varying length to the copying station of a copier machine. If the document is less than or equal to a predetermined length, the document is moved to the copying station, a corresponding copy is made, and the original document is then transported to an exit stacker. If the original document exceeds the predetermined length, which length is slightly less than the length of a copy document, then the feed moves the original document to and through the copy station in increments slightly shorter than the length of the copy document, until the entire length of the original document has been copied. A particular use of the invention is in connection with the copying of adding machine tapes.
    Type: Grant
    Filed: February 4, 1977
    Date of Patent: April 4, 1978
    Assignee: International Business Machines Corporation
    Inventors: John G. Baumberger, Michael A. Gazy, William C. Miller