The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 06, 1993
Filed:
Apr. 30, 1992
Ichiro Shimano, Tokyo, JP;
Musashi Engineering, Inc., Mitaka, JP;
Abstract
A liquid dispensing apparatus comprises a syringe containing liquid to be dispensed and an air supply for supplying compressed air to the syringe. The syringe is connected to the compressed air supply via a discharging solenoid valve by means of a pipe line which is provided with an accumulator so as to prevent disturbance of stand-up of the pressure in the syringe to thereby effect a highly accurate quantitative discharge of liquid from the syringe independent of whether a quantity of liquid remaining in the syringe is much or less. The apparatus further comprises an air suction connected to the discharge solenoid valve by means of an additional pipe line provided with an accumulator to prevent liquid from dropping out of the syringe after the end of discharge of liquid.