Abstract:
The water filtration device and method introduce raw water into a filtration barrel where the water is purified by filter elements inside the filtration barrel. A main frame is set up in the filtration barrel and a driving motor is mounted on the main frame. The driving motor engages a holding rack inside the main frame to spin at high speed. Filter elements are stacked and interleaved on the holding rack. When the filter elements require cleaning to remove the attached contaminants from the raw water, filter elements are rotated at high speed along with the holding rack so that the contaminants are thrown off by the centrifugal force. When the filter elements are cleaned, the high-speed rotation of the filter elements could be stopped and the filtration process could be continued or terminated.
Abstract:
An artificial insemination device includes a catheter, a widening tip connected to one end of the catheter for being introduced into the genital system of a female animal, and a check valve connected between the catheter and the widening tip and having a stopper supported on a spring between a first stop wall and a second stop wall for controlling the passage in the second stop wall for allowing the injected semen to pass out of the semen outlet in the first stop wall and prohibiting the injected semen from flowing backwards