Patents by Inventor Gerhard Pfeil

Gerhard Pfeil 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: 6087759
    Abstract: The invention concerns a resonator (1) with at least one crystal (2, 2'), at least two electrodes (3, 3', 4, 4') exciting the crystal (2, 2'), and a sandwich housing (5, 5') with a substantially plate-shaped bottom (6), at least one frame-like central portion (7, 7') which surrounds the crystal (2, 2') and supports it in a pendular fashion, and a substantially plate-shaped lid (8), wherein these housing sections (6, 7, 7', 8) are interconnected by means of sealing surfaces (13, 14, 15, 16), with the inclusion of conducting layers (9 and 9', 10 and 10'; 11, 12) and each electrode (3, 4; 3', 4') is connected to conductive layers (9 and 9', 10 and 10';11, 12). The resonator in accordance with the invention is configured in such a fashion that it can be further processed using SMD technology.
    Type: Grant
    Filed: May 19, 1999
    Date of Patent: July 11, 2000
    Assignee: Tele Quarz GmbH
    Inventor: Gerhard Pfeil