Patents by Inventor John W. Kelley

John W. Kelley 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).

  • Magnetic latching actuator
    Patent number: 12230440
    Abstract: An actuator assembly including a first actuator having a first magnetically actuated plunger and a first latching plate, where the first plunger is operable to be magnetically latched to the first latching plate. The actuator assembly further includes a second actuator coupled to and axially aligned with the first actuator. The second actuator includes a second magnetically actuated plunger, a second latching plate, a sleeve positioned within and extending from the second plunger and being rigidly secured to the first plunger, and a tolerance spring wrapped around the sleeve. The second plunger is operable to be magnetically latched to the second latching plate, where latching of the second plunger causes the tolerance spring to compress and provide additional latching force of the first plunger to the first latching plate.
    Type: Grant
    Filed: June 30, 2022
    Date of Patent: February 18, 2025
    Assignee: S&C Electric Company
    Inventors: Nicholas Seng, Alejandro Montenegro, John French, Thomas S. Kelley, Keith W. Benson, Robert E. Sroka, Michael Quinlan, Gabrielle Madden
  • Polyketone polymer blend
    Patent number: 5618870
    Abstract: It is herein disclosed a polymer blend having and exhibiting excellent tribological properties comprising a major amount of polyketone polymers and a minor amount of one or more silicone oil. The blend also has and exhibits improved lubricity and has a low DCOF of from about 0.3-0.4. The blend is particularly useful in the manufacture of articles used in applications where surfaces are in contact during motion.
    Type: Grant
    Filed: March 23, 1995
    Date of Patent: April 8, 1997
    Assignee: Shell Oil Company
    Inventors: John E. Flood, John W. Kelley, Davis R. Roane, John M. Clasby
  • Apparatus for the resilient spinwelding of thermoplastic articles
    Patent number: 5108539
    Abstract: An apparatus is disclosed for the resilient spinwelding of two (thermoplastic) body portions to one another. The incorporation of resilient members between the prior art "hard surfaced" spinweld apparatus and the body portions to be welded together significantly decreases the spinweld time, and in the case of container/lid systems used for food packaging, increases the burst pressure of the container/lid.
    Type: Grant
    Filed: April 23, 1990
    Date of Patent: April 28, 1992
    Assignee: Shell Oil Company
    Inventors: John W. Kelley, Roy F. Smith, William H. Korcz
  • Method for the resilient spinwelding of thermoplastic articles
    Patent number: 5064485
    Abstract: A method is disclosed for the resilient spinwelding of two (thermoplastic) body portions to one another. The incorporation of resilient members between the prior art "hard surfaced" spinweld apparatus and the body portions to be welded together significantly decreases the spinweld time, and in the case of container/lid systems used for food packaging, increases the burst pressure of the container/lid.
    Type: Grant
    Filed: April 23, 1990
    Date of Patent: November 12, 1991
    Assignee: Shell Oil Company
    Inventors: Roy F. Smith, John W. Kelley, William H. Korcz