Patents by Inventor Klaus Mielke

Klaus Mielke 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: 4826135
    Abstract: The present invention relates to an arrangement (1) for a valve assembly which acts with a movable valve body (4), such as a piston, for the purpose of feeding a liquid in a liquid jet printer, the valve assembly including a valve seat (5) which extends around a liquid discharge opening (6) and interacts with said valve body to form a seal. The invention permits, amongst other things, the simple production of components parts of the valve assembly, and also permits the accurate feeding of liquid from the liquid jet printer. Said valve seat (5) is made of a flexible material (5A) capable of interacting with the moving valve body (4).
    Type: Grant
    Filed: February 1, 1988
    Date of Patent: May 2, 1989
    Assignee: Scandot System AB
    Inventor: Klaus Mielke
  • Patent number: 4803501
    Abstract: A device for generating fluid drops, preferably in a demand controlled ink jet printer which has a rod (3) of magneto-strictive material surrounded by a magnetization coil (4). One end (3a) of the rod is fixedly secured to a stationary portion (1a) of the device. The second, free end (3b) extends via a fluid-sealing leadthrough (5) into a fluid chamber (6) in the device to a position in the vicinity area of the outlet opening (8) of said fluid chamber. When actuating the magnetization coil by feeding an actuation current thereto, the magneto-strictive rod generates an ultrasonic pressure wave in the fluid at the outlet opening of the fluid chamber (6), which in turn causes an ejection of a fluid drop from said outlet opening (8).
    Type: Grant
    Filed: February 9, 1987
    Date of Patent: February 7, 1989
    Assignee: Swedot System AB
    Inventor: Klaus Mielke
  • Patent number: 4737802
    Abstract: The present invention relates to a fluid jet printing device A to U having an inlet 14, an outlet nozzle 13 and a valve 3, 5 located between the inlet and the outlet. The valve comprises a movable actuation member 3 cooperating with a valve seat.For enhancing the drop generation frequency, a diaphragm-like partition wall PW is arranged between the inlet and the outlet. Said partition wall includes the valve seat VS.
    Type: Grant
    Filed: July 21, 1986
    Date of Patent: April 12, 1988
    Assignee: Swedot System AB
    Inventor: Klaus Mielke