Patents by Inventor Elbrige H. Miller

Elbrige H. Miller 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: 4408789
    Abstract: A safety latch is disclosed capable of selectively locking an in swinging door in a closed position, permitting the door to open a predetermined angular displacement, or permitting the door to open freely. The latch includes a bracket with a projecting portion offset from the door, and a pivotable bar capable of limited vertical displacement, and having a slot with a long first portion of predetermined width abruptly expanding to a short second portion of greater width. The projecting portion is capable of selectively engaging the pivotable bar in either the first or second portion of the slot.
    Type: Grant
    Filed: February 23, 1981
    Date of Patent: October 11, 1983
    Inventor: Elbrige H. Miller