Patents by Inventor Hans Wall

Hans Wall 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: 4944052
    Abstract: A public sanitary cubicle comprises a sanitary room with a lavatory pan accessible via a door and a technical room separated therefrom by a partition and containing the means necessary for the supply, disposal and cleaning of the sanitary room and, in particular, a cleaning implement for the lavatory pan which can be brought into the sanitary room by a support arm for the cleaning, phase, as well as a drain. For rapid and effective cleaning the support arm carries a plurality of spray nozzles connected to a high pressure water source, whereof at least two are directed from above in different angular positions onto the lavatory pan and two or more are directed onto the sanitary room floor inclined towards the drain.
    Type: Grant
    Filed: July 28, 1989
    Date of Patent: July 31, 1990
    Inventor: Hans Wall
  • Patent number: 4922559
    Abstract: A public sanitary cubicle comprises a sanitary room with a water closet accessible through an outer door and a cleaning room separated therefrom by a partition and which contains the means necessary for the supply, disposal and cleaning of the sanitary room, particularly a cleaning appliance which can be brought up to the water closet after moving away the partition or part thereof and a drain connected to the water closet. For improving and facilitating cleaning work, the water closet has a substantially flat base with a rear drainage edge and which is inclined from the sanitary room to the partition, as well as a rear wall formed by the partition or its movable part, the drain being located in the cleaning room in the vicinity of the partition below the drainage edge of the base of the water closet and is exposed by moving away the partition or its movable part.
    Type: Grant
    Filed: October 11, 1988
    Date of Patent: May 8, 1990
    Inventor: Hans Wall
  • Patent number: D338073
    Type: Grant
    Filed: March 22, 1989
    Date of Patent: August 3, 1993
    Inventor: Hans Wall