Patents by Inventor James F. McKenna

James F. McKenna 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: 4955425
    Abstract: Apparatus for non-impact handling of foundry castings utilizes a sand pervious basket to receive a sand mold and casting and to segregate the casting from the mold. A turntable assembly lifts and translates the basket to a secondary conveyor which removes the casting for further processing. The secondary conveyor may be a walking beam conveyor adapted to operate inside a quenching tank and the basket adapted to align with the walking beam conveyor for removal of the casting.
    Type: Grant
    Filed: September 19, 1988
    Date of Patent: September 11, 1990
    Inventor: James F. McKenna
  • Patent number: 4277312
    Abstract: Apparatus is described for cleaning the interior of gooseneck elbows of coke oven ascension pipes. A powered cleaning mechanism carried by the coke oven larry car is mounted on a platform that is reciprocably movable between the larry car and the elbow to be cleaned over a track and roller system protected against the disruptive effects of accumulated coal or other debris. A cam and follower arrangement is operative to automatically guide the operating end of the cleaning mechanism within the interior of the elbow thereby eliminating the need for a workman's manually guiding and manipulating the same.
    Type: Grant
    Filed: September 15, 1980
    Date of Patent: July 7, 1981
    Assignee: United States Steel Corporation
    Inventors: James F. McKenna, Douglas O. Anderson