Patents by Inventor Richard L. Sun

Richard L. Sun 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: 6211756
    Abstract: An electromechanical relay (10) that includes a frame (52) and a header assembly (20) having a plurality of contacts (24, 26, 28). The relay (10) also includes a core assembly (62) having an end engaging the frame (52). The relay (10) further includes an armature assembly (64) pivotally connected to the core assembly (62). The armature assembly (64) has at least one actuator (76, 77) engaging one of the contacts (24, 26). The relay (10) also includes a shield (16) connected to the header assembly (20) and defining a cavity (84) in which the contacts (24, 26, 28) are disposed.
    Type: Grant
    Filed: November 6, 1998
    Date of Patent: April 3, 2001
    Assignee: Teledydne Industries, Inc.
    Inventors: Richard L. Sun, Given Chun, Ricardo E. Vallero
  • Patent number: 6043440
    Abstract: A microwave switch includes a housing having at least three spaced coaxial conductor terminals extending from the housing; an electrical conductor extends inwardly from each of the terminals to a housing interior; and a housing cover effectively seals the housing and includes a pair of bearing apertures. A pair of switch operators, each having a headed top confines return springs between an underside of the headed top and a top surface of the cover, a central guide portion passes through said bearing apertures and a distal end protrudes from an underside surface of the cover into the housing interior toward the electrical conductors. A switch reed is fixedly attached to the distal end of each of the operators within said housing, each switch reed including reed distal ends which electrically interconnect, upon alternative operation of said operators by a rocker assembly, a pair of the electrical conductors including a common electrical conductor.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: March 28, 2000
    Assignee: Teledyne Industries, Inc.
    Inventors: Richard L. Sun, Piau Chee Lee
  • Patent number: 5451918
    Abstract: A microwave multi-port switch has three operating positions and three RF paths. Six peripheral contact junctions are provided adjacent corners of a hexagonal cavity in an RF body and a common contact provided at the cavity center. Six reeds bridge over in and out of contact with adjacent ones of the peripheral contacts and six reeds extend between and in and out of contact with the peripheral contacts and the common contact. Reeds are actuated by movement of a coil-driven rocker through three actuating mechanisms, including a center post, at three levels above the body. The mechanisms include radially extending leaf springs, an actuator loosely keyed to the center post and a pivoted leaf spring movable by rocker tilting depressing the actuator, the leaf springs and fixed dielectric posts extending upwardly from the reeds.
    Type: Grant
    Filed: May 4, 1994
    Date of Patent: September 19, 1995
    Assignee: Teledyne Industries, Inc.
    Inventor: Richard L. Sun
  • Patent number: 5075656
    Abstract: A microwave switch employs a slender reed contact which bridges across a pair of microwave probe ends to permit microwave signals to pass therebetween. The reed contact is connected to one end of a dielectric actuator post and a permanent magnet is affixed to a headed end of the post, a medial portion of the post extending through a microwave housing wall. A cup-shaped bushing preferably made of a polyimide plastic and a lubricating filler such as graphite or molybdenum disulfide, surrounds the edge and bottom periphery of the magnet and the post head and reciprocates on an inner periphery of a steel ring clamping an iron washer in a housing wall counterbore. The magnet is statically magnetically attracted to the iron washer moving the attached post and reed contact into bridging contact with the microwave probes to form a path for microwave signals between the probes. A solenoid is positioned above the permanent magnet.
    Type: Grant
    Filed: March 26, 1990
    Date of Patent: December 24, 1991
    Assignee: Teledyne Microwave
    Inventors: Richard L. Sun, Krzysztof J. Ciezarek