Patents by Inventor Robert James MacIntyre

Robert James MacIntyre 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).

  • Plunger arrangement for retaining glass/screen inserts in frames
    Patent number: 5681067
    Abstract: Plunger arrangements are used for retaining glass/screen inserts in frames. A plurality of caps are disposed around the insert and are disposed in one position for extending a spring biased plunger to engage the frame. The caps are disposed in an other position against the spring bias to retract the plunger from the frame. The arrangement is such that the cap remains in the other position without being held thereat by a user, whereby the user's hands are free to manipulate the insert in or out of the frame.
    Type: Grant
    Filed: January 22, 1996
    Date of Patent: October 28, 1997
    Assignee: Metal Industries, Inc.
    Inventor: Robert James MacIntyre