Patents by Inventor Ludger Koster

Ludger Koster 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: 5775254
    Abstract: A valve assembly for a milking machine having teat cups. Each teat cup has a shell and a rubber lining, a pulsing chamber between the shell and the lining, and a pulsator for alternately pressurizing the pulsing chamber to atmospheric pressure and evacuating the pulsing chamber through a pulsation-forwarding line. The pressurization and evacuation are timed in accordance with a cross-section of a channel that conveys air into and out of the pulsing chamber. The valve assembly has a bypass channel associated with the air channel and a valve shut-off element in the bypass channel that opens when air is evacuated from the pulsing chamber and closes when pressurizing air enters the pulsing chamber.
    Type: Grant
    Filed: February 15, 1996
    Date of Patent: July 7, 1998
    Assignee: Westfalia Separator Aktiengesellschaft
    Inventors: Ludger Koster, Ralf Wohlbruck
  • Patent number: 5727504
    Abstract: A milking stand having a plurality of adjacent positions accommodating animals to be milked has a barrier at a rear end of the animals to be milked and a horizontal elongated locking component at a front end of the animals to be milked. The locking component has a first wave tube connected thereto and is mounted for vertical movement of the locking component and the first wave tube between a lower position wherein the locking component prevents the animals to be milked from exiting the milking stand and an upper position wherein the locking component does not prevent the animals to be milked from exiting the milking stand. The locking component is mounted for pivoting movement of the locking component and the first wave tube about a longitudinal axis to move the first wave tube into a generally vertical position and into a generally horizontal position when the locking component is in the lower position.
    Type: Grant
    Filed: February 7, 1996
    Date of Patent: March 17, 1998
    Assignee: Westfalia Separator Aktiengesellschaft
    Inventor: Ludger Koster
  • Patent number: 5634428
    Abstract: A device for removing a set of teat cups from a dairy animal. The device includes a piston-and-cylinder mechanism. The cylinder is attached to the teat-cup set by a cord secured to the piston. The device is intended for use in a milking parlor where the teat cups are removed through the animal's hind legs after milking. The object is to prevent the milker from being impeded in his duties by the teat cups when they are not being used. The cord is provided with a guide that can be shifted by mechanical controls out of an active position wherein the cups can be removed along a vertical plane exactly between the animal's hind legs and into an inactive position horizontally remote therefrom and from the milker's head.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: June 3, 1997
    Assignee: Westfalia Separator AG
    Inventor: Ludger Koster