Patents by Inventor Ruedi Kaelin

Ruedi Kaelin 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).

  • Method for producing a mini-transformer with molded cover and retention structure
    Patent number: 5577316
    Abstract: A mini-transformer features an iron or ferrite core (2) and primary and secondary windings (3, 4). Portions of the windings (3, 4) which extend beyond the iron or ferrite core (2) are covered on both sides with a thermoplastic material forming a lid (6, 7). The two lids or end bells (6, 7) are combined into one piece by means of first bars (12), which extend through the hollow spaces (9) between the windings (3, 4) and the iron or ferrite core (2) and fill them, and that the laminated iron or ferrite core (2) is fixed in itself by second bars (14) connecting the two lids (6, 7).
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: November 26, 1996
    Assignee: Aspro Technology AG
    Inventor: Ruedi Kaelin
  • Mini-transformer with molded cover and retention structure
    Patent number: 5483405
    Abstract: A mini-transformer features an iron or ferrite core (2) and primary and secondary windings (3, 4). Portions of the windings (3, 4) which extend beyond the iron or ferrite core (2) are covered on both sides with a thermoplastic material forming a lid (6, 7). The two lids or end bells (6, 7) are combined into one piece by means of first bars (12), which extend through the hollow spaces (9) between the windings (3, 4) and the iron or ferrite core (2) and fill them, and that the laminated iron or ferrite core (2) is fixed in itself by second bars (14) connecting the two lids (6, 7).
    Type: Grant
    Filed: September 21, 1994
    Date of Patent: January 9, 1996
    Inventor: Ruedi Kaelin
  • Solder-free plug-cable connection system
    Patent number: 5085594
    Abstract: To connect a cable, for example having two or more parallel connectors, to a plug, typically having coaxial sleevers (2, 3), the sleeves of the plug (2, 3), each, are formed with extending prongs (9) positioned and spaced from each other to penetrate into a cut end of the cable (6) between, or into the wires (10) of the cable and the surrounding insulation (12). To hold the assembly together, and prevent spreading of the cable in the region of penetration, the cable is surrounded by a clamp (16) formed of two plastic parts (28, 29) which can be snapped together; the entire connection, then, is covered by an injection-molded jacket (7), which is so arranged that the injection molding material can penetrate through openings (27) formed in the sleeve plug elements (2, 3) to thereby locate the sleeve elements securely in position within the plug (1).
    Type: Grant
    Filed: June 25, 1991
    Date of Patent: February 4, 1992
    Inventor: Ruedi Kaelin