ALEXANDRIA, Va., June 9 -- United States Patent no. 12,286,984, issued on April 29, was assigned to FUJI FILTER MANUFACTURING Co. LTD. (Tokyo).
"Fluid injection or suction device" was invented by Yuichi Takahashi (Tochigi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention includes: a cylinder; a piston that is inserted in the cylinder and partitions an interior of the cylinder into fluid chambers and; guides that support the piston and guide movement of the cylinder, the guides including a first internal flow passage and a second internal flow passage; and nozzles communicating with the fluid chambers, respectively, wherein a pipe to communicate with a fluid pressure source is config...