Patents by Inventor Sven-Ake Nordegren

Sven-Ake Nordegren 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: 4011838
    Abstract: A milking machine system includes a flow rate sensing device, a timing device, and a system control means for varying the character of the working and massage vacuums during the milking process, in response to the rate of milk flow and to time. The milking machine system can be controlled in predetermined phases, such as a stimulation phase, a milking phase, a post-milking phase, and a switch-off phase, with the duration of the phases dependent on the rate of milk flow reaching certain predetermined levels and on time lapse parameters. The level of the working vacuum or massage vacuum can be varied in each phase with the massage vacuum pulses also variable as to pulse frequency and duration. The teat cups can also be operated independently of one another, and can be subjected periodically to sequential pulses of the massage vacuum to operate the teat cups sequentially.
    Type: Grant
    Filed: March 25, 1976
    Date of Patent: March 15, 1977
    Assignee: Alfa-Laval AB
    Inventors: Sven-Ake Nordegren, Douglas J. Norton
  • Patent number: 3943888
    Abstract: The pipeline milking system has a venting arrangement in the form of a receptacle having a milk inlet connected to a milking means, a milk outlet controlled by a float or the like and connected to the system's milk transport conduit, and an air outlet connected to a working vacuum source via a reducing means which comprises a control valve connected to a control vacuum source and operable to control the vacuum in the receptacle in relation to the control vacuum.
    Type: Grant
    Filed: October 1, 1974
    Date of Patent: March 16, 1976
    Assignee: Alfa-Laval AB
    Inventors: Sven-Ake Nordegren, Karl Erik Olander