Patents by Inventor Leif Sonesson

Leif Sonesson 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: 5381566
    Abstract: An apparatus for first cleaning and thereafter rinsing a bathtub (10) by a cleaning liquid (60) and a rinsing liquid (61). Once the cleaning liquid has reached a predetermined level, the liquid is recycled via a suction extraction device (70) and is returned to the bath via a supply mechanism (11) disposed along the upper edge of the bathtub. Thereafter, the cleaning liquid is run off via a bottom outlet (13). The rinsing liquid (61) is supplied to the bath and recycled thereto via the suction extraction device (70) and the supply mechanism (11). A pump (40) is disposed to supply or discharge, via a conduit (23, 24), liquid from the bathtub. At least one (23) of the conduits is connected to the supply mechanism (11), and in addition control and regulation devices (50) are provided for starting and stopping the pump (40) and for adjusting the valve devices (41, 42, 43) to closed or opened positions for the supply of cleaning liquid or rinsing liquid to the bathtub.
    Type: Grant
    Filed: April 1, 1993
    Date of Patent: January 17, 1995
    Assignee: Arjo Hospital Equipment AB
    Inventors: Leif Sonesson, Jorgen Olsson
  • Patent number: 5348223
    Abstract: A method and an apparatus for producing a continuous liquid flow at a controlled temperature. The apparatus includes mixers (1, 2) which, upstream, are connected to a supply conduit (3) for hot liquid under pressure and a supply conduit (4) for cold liquid under pressure. Each respective mixer has an outlet (5, 6) connected to a common discharge conduit (9) by a first outlet conduit (7, 8). The common conduit (9) is provided with a tap (10) disposed downstream of the interconnection of the outlet conduits with the common conduit (9). The temperature of the liquid which is to be discharged through conduit (9) is adjusted in that hot and cold liquid are mixed in the mixers from which the liquid is supplied to the common conduit (9).
    Type: Grant
    Filed: June 29, 1992
    Date of Patent: September 20, 1994
    Assignee: Arjo Hospital Equipment AB
    Inventors: Leif Sonesson, Jorgen Olsson