A/s N. Foss Electric

A/s Foss Electric

Miloslav Zakora

Poul E Aegidius

Jorgen F Nielsen

A manually operatable dosage pump comprising a cylinder, a piston movable therein between two end positions, and inlet and outlet passages communicating with the cylinder space and each containing a one-way valve or check valve. The piston is adapted to interrupt communication between said inlet and outlet passages in at least one of the end positions of the piston. Thus, a valve member mounted on the piston may cooperate with valve seats formed in a valve chamber axially aligned with the cylinder space.

Dosage pump

The invention relates to a liquid analyzing apparatus, especially for use in determining the fat content of milk samples. The apparatus comprises manually operated dosage syringes or pumps for mixing diluent and liquid sample in a predetermined relationship, a manually operable homogenizer for providing homogenized mixture to photometric measuring means including a cuvette. The homogenizer and the photometric measuring means are arranged within a temperature controlled block or body made from a heat conductive material. The homogenizer may comprise a piston pump having a piston provided with an O-ring and rigidly connected to a piston rod oscillating angularly in operation.

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Hillerod, Denmark

Miloslav Zakora