Patents by Inventor Jan Lofdal

Jan Lofdal 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).

  • Arrangement designed to be a part of an equipment for cleaning different objects in a food processing plant
    Patent number: 5913984
    Abstract: The invention relates to equipment for cleaning objects such as tanks, pipeline systems etc. in a food treatment plant. The equipment includes a liquid conveying system which is arranged to convey a variable controlled amount of liquid at a variable controlled flow rate. In series with this means system there is a volume and/or flow rate metering device and a control device connected to the volume and/or flow rate metering device and receiving a signal from the metering device. The control device is arranged to actuate the conveying system in response to this signal so that the desired amount of liquid is conveyed at a desired flow rate. The conveying system and the volume and/or flow rate metering device are arranged in a flow path supplying rinsing or cleaning liquid to one or several objects to be cleaned.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: June 22, 1999
    Assignee: Alfa Laval AB
    Inventor: Jan Lofdal