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:
May. 24, 1988
Filed:
Nov. 25, 1986
Dai Nippon Insatsu Kabushiki Kaisha, Tokyo, JP;
Abstract
The invention discloses a device for measuring the concentration of alcohol contained in the dampening water used in printing. Part of the dampening water pumped up from a dampening water tank (1) and delivered to a water fountain (3) is sampled through a bypass passage and the dampening water is returned to the dampening water tank (1) after the measurement of the concentration of the sampled dampening water. A measuring unit (8) for detecting the concentration of alcohol has a shielding plate (13) disposed adjacent to the dampening water inlet so that the disturbance of the surface of the dampening water introduced into the measuring unit is prevented. The dampening water discharge outlet consists of a pipe whose upper end is in coplanar relationship with a predetermined surface level of the aqueous solution in the measuring unit so that the excessive dampening water overflows into the pipe (10) to return to the dampening water tank. The measuring unit (8) includes a temperature sensor (15), a gas sensor (16) and a pH sensor (50) when required and the gas sensor (16) is disposed within a predetermined closed space.