Patents by Inventor Klaus LEPPERT

Klaus LEPPERT 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: 9630730
    Abstract: A pneumatically actuated strapping apparatus for strapping plastic tape around a packaging item including a motorized tensioning device and a motorized welding device for the plastic tape. The tensioning device and the welding device are driven by the same pneumatic motor. The direction of rotation of the pneumatic motor can be inverted. The pneumatic motor is connected to the devices by two freewheeling mechanisms releasing the devices in opposite directions. In order to keep power consumption for evacuating non-operational air low, in a particularly preferred embodiment, switching valves which automatically discharge the nonoperational air to the exterior are integrated into the air intake ducts that are used as evacuation ducts for the non-operational air when the direction of rotation is inverted.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: April 25, 2017
    Assignee: FROMM HOLDING AG
    Inventor: Klaus Leppert
  • Patent number: 9346572
    Abstract: A strapping apparatus for strapping a tensioning strap around a packaging item includes a frictional wheel that operates against a support to tighten the tensioning strap. The frictional wheel is operatively connected to a drive unit and can be lifted from the support by a swiveling lever. The swiveling lever includes an interrupting element to interrupt the path of action between the frictional wheel and the drive unit so as to be able to lift the frictional wheel in an unloaded state from the tensioning strap.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: May 24, 2016
    Assignee: FROMM HOLDING AG
    Inventor: Klaus Leppert
  • Publication number: 20140311363
    Abstract: A strapping apparatus for strapping a tensioning strap around a packaging item includes a frictional wheel that operates against a support to tighten the tensioning strap. The frictional wheel is operatively connected to a drive unit and can be lifted from the support by a swiveling lever. The swiveling lever includes an interrupting element to interrupt the path of action between the frictional wheel and the drive unit so as to be able to lift the frictional wheel in an unloaded state from the tensioning strap.
    Type: Application
    Filed: June 12, 2014
    Publication date: October 23, 2014
    Inventor: Klaus LEPPERT
  • Publication number: 20140290191
    Abstract: A pneumatically actuated strapping apparatus for strapping plastic tape around a packaging item includes a motorized tensioning device, a motorized welding device for the plastic tape, and a pneumatic control device that has a first manually operated valve for operating the tensioning device and a second manually operated valve for operating the welding device. In order to spare an operator the trouble of obtaining essentially the same tensioning state of the plastic tape prior to the welding step each time a packaging job is repeated, a third valve is included which allows the welding device to be switched to an automatic operating mode.
    Type: Application
    Filed: June 12, 2014
    Publication date: October 2, 2014
    Inventor: Klaus LEPPERT
  • Publication number: 20140290192
    Abstract: A pneumatically actuated strapping apparatus for strapping plastic tape around a packaging item including a motorized tensioning device and a motorized welding device for the plastic tape. The tensioning device and the welding device are driven by the same pneumatic motor The direction of rotation of the pneumatic motor can be inverted. The pneumatic motor is connected to the devices by two freewheeling mechanisms releasing the devices in opposite directions. In order to keep power consumption for evacuating non-operational air low, in a particularly preferred embodiment, switching valves which automatically discharge the nonoperational air to the exterior are integrated into the air intake ducts that are used as evacuation ducts for the non-operational air when the direction of rotation is inverted.
    Type: Application
    Filed: June 12, 2014
    Publication date: October 2, 2014
    Inventor: Klaus LEPPERT