Patents by Inventor Al Welling

Al Welling 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: 5257581
    Abstract: A safe locking assembly allows a safe to be securely locked and to be unlocked from a remote location. The attachment has arms attached to opposite side walls of the safe and a swing arm at the front to extend across the safe door. The swing arm is attracted to one side arm by an electromagnet which prevents the swing arm from swinging open to obtain access to the safe door. The electromagnet can be deactivated by a remote switch to allow the swing arm to open and provide access to the safe. The device is useful for safes to which access is needed on a frequent basis to obviate the need for operating the safe's own combination or other lock each time the safe is to be opened and closed.
    Type: Grant
    Filed: September 4, 1992
    Date of Patent: November 2, 1993
    Inventor: Al Welling