Patents by Inventor Piotr Cippert

Piotr Cippert 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: 4976161
    Abstract: A fluid dispensing device appropriate for precision measuring of exactly determined dosages of fluid in the course of metering, diluting and titrating.The fluid dispensing device has a control unit together with a programmable electronic circuit, a keyboard and a display; a drive unit with a motor and piston-cylinder units, each a cylinder and a piston, which are placed into a separate housing. The shaft of this motor is connected to pistons by a coupling, and each cylinder is connected to a corresponding pipette by a flexible electro-pneumatic conduit. The pneumatic conduits and conductors have a common casing. The programmable electronic circuit has a temperature compensation system provided with temperature-sensitive elements, preferably thermistors, one of them being seated inside the housing, near one of the pistons, while the other is seated into a bracket used for mounting the other pipette.
    Type: Grant
    Filed: April 13, 1989
    Date of Patent: December 11, 1990
    Assignee: Przedsiebiorstwo Polonijno-Zagraniczne Plastomed
    Inventors: Andrzej Czernecki, Piotr Cippert