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:
Feb. 26, 1985
Filed:
May. 18, 1982
Fumio Mizoguchi, Hachioji, JP;
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
An amount of a reagent remaining in a reagent bottle is detected by measuring a distance along which a delivery nozzle is moved downward from a reference level until the tip of nozzle is immersed into the reagent. The distance is measured by counting clock pulses supplied from an oscillating unit which produces the clock pulses during a time interval from the initial downward movement of the nozzle to an instant when the nozzle tip is immersed into the liquid. A count value is compared with a predetermined maximum count value by a comparing unit to derive a difference therebetween. The difference thus derived indicates a residual amount of the liquid. The number of times by which the liquid may be delivered is obtained by dividing the detected residual amount by a unit amount which is delivered by a single delivery operation.