Patents by Inventor Mark A. Zaffetti

Mark A. Zaffetti 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).

  • Latching arrangement for high ampere-rated circuit breaker operating springs
    Patent number: 5488211
    Abstract: This invention relates to a high ampere-rated circuit breaker which meets the electrical code requirements of the world market. The charging of the powerful operating springs controlling the circuit breaker contacts is made manually by means of a ratchet and pawl assembly. A two stage latching arrangement controls the retention and release of the pawl to retain and discharge the operating springs.
    Type: Grant
    Filed: March 28, 1994
    Date of Patent: January 30, 1996
    Inventors: Roger N. Castonguay, James L. Rosen, Mark A. Zaffetti
  • Rating module unit for high ampere-rated circuit breaker
    Patent number: 5486667
    Abstract: This invention relates to a high ampere-rated circuit breaker which meets the electrical code requirements of the world market. The operating springs controlling the CLOSED state of the circuit breaker contacts are contained within a module unit which can be installed both in the field as well as in the factory. A separate module provides the spring bias forces required for each of the circuit breaker ampere ratings.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: January 23, 1996
    Assignee: General Electric Company
    Inventors: Roger N. Castonguay, James L. Rosen, Mark A. Zaffetti
  • Circuit breaker closing and opening interlock assembly
    Patent number: 5478979
    Abstract: This invention relates to a high ampere-rated circuit breaker which meets the electrical code requirements of the world market. The closing springs controlling the CLOSED state and the opening springs controlling the OPENED state of the circuit breaker contacts are interlocked to prevent operation of both springs at the same time. The closing lever and the opening lever interact in such a manner that only one of the levers can release the associated closing or opening springs.
    Type: Grant
    Filed: April 8, 1994
    Date of Patent: December 26, 1995
    Assignee: General Electric Company
    Inventors: Roger N. Castonguay, James L. Rosen, Mark A. Zaffetti
  • Operating mechanism for high ampere-rated circuit breakers
    Patent number: 5424701
    Abstract: An operating mechanism is disclosed which is capable of meeting electrical code requirements in the world market. The operating springs controlling the OPEN and CLOSED states of the circuit breaker contacts are charged both before and after the contacts are in their CLOSED conditions. The mechanism is both latched and unlatched by operation of a rotating cradle operator.
    Type: Grant
    Filed: February 25, 1994
    Date of Patent: June 13, 1995
    Assignee: General Electric
    Inventors: Roger N. Castonguay, James L. Rosen, Mark A. Zaffetti