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.

Date of Patent:
Oct. 15, 1991

Filed:

Mar. 20, 1990
Applicant:
Inventors:

Masayuki Kurematsu, Hino, JP;

Shigeharu Koboshi, Hino, JP;

Nobutaka Goto, Hino, JP;

Naoki Takabayashi, Hino, JP;

Assignee:

Konica Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ;
U.S. Cl.
CPC ...
203-3 ; 73 232 ; 159 473 ; 203D / ; 203D / ; 422-5 ; 422705 ; 436 55 ; 436121 ;
Abstract

A disposal device for photographic processing waste liquor which concentrates the photographic process waste liquor by evaporation. The disposal device has a gas detecting device for detecting gas which may be generated during the evaporation of the waste liquor and a control device for stopping the evaporation based on the detection of a concentration of a specific gas. The processing method for photographic waste liquor involves evaporating the waste liquor to concentrate it and detecting gases which are generated during the evaporation process. When the concentration of a specific gas reaches a certain level, the evaporation step is halted.


Find Patent Forward Citations

Kurematsu, Masayuki. (1991). Processing method or photographic processing waste liquor (U.S. Patent No. 5057191). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5057191

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…