Patents by Inventor Charles A. Cudd

Charles A. Cudd 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).

  • Lock deadbolt protector
    Patent number: 4950005
    Abstract: Mortise lock has a guardbolt which, when depressed, moves a lever inside the lock. The end of the lever moves a vertically sliding interlock slide from a first position in which its fits in a recess in the deadbolt and blocks the throwing of the deadbolt, to a second position. In the second position the slide clears the recess and permits the deadbolt to be extended. This protects against the extension of the deadbolt unless the door is closed.
    Type: Grant
    Filed: September 25, 1989
    Date of Patent: August 21, 1990
    Assignee: Yale Security Inc.
    Inventor: Charles A. Cudd
  • Lock deadbolt protector
    Patent number: 4870841
    Abstract: Mortise lock has a guardbolt which, when depressed, moves a hooked lever inside the lock housing from a first position in which it blocks operation of the deadbolt operator, to a second position in which it clears the deadbolt operator and permits it to operate. This protects against extension of the deadbolt unless the door is closed.
    Type: Grant
    Filed: October 6, 1988
    Date of Patent: October 3, 1989
    Assignee: Yale Security Inc.
    Inventor: Charles A. Cudd