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. 23, 1996
Filed:
Jun. 09, 1994
Giosue Franci, Pordenone, IT;
Ennio Pessot, Pordenone, IT;
Daniele Bravin, Pordenone, IT;
Danny Lant, Udine, IT;
Dragan Raus, Pordenone, IT;
San Marco Imaging S.r.l., Pordenone, IT;
Abstract
The level of chemical treatment baths is automatically, compensated, in film developing machines. A vessel (90) contains a supply of water which is directed by a pump (50) and a pipeline (51) through a manifold (7) to baths (11, 12, 13, 14, 15) by way of feed pipelines (71, 72, 73, 74, 75). Each pipeline is controlled by respective solenoid valve (61, 62, 63, 64, 65) controlled to operate simultaneously with the pump (50) by way of an electronic control unit (41) in receipt of signals relayed from sensors (21, 22, 23, 24, 25) designed to detect a drop in the level of the solutions in the baths (11, 12, 13, 14, 15). The feed outlets of the pipelines (71, 72, 73, 74 75) discharge above the level of the baths (11, 12, 13, 14, 15) so as to prevent any possibility of reflux. In the case of the pipeline (75) serving the final bath (15), water is supplied by way of a tubular element (81) with holes (85) strategically placed to generating jets directed onto at least one roller (321) of a set of paired squeeze rollers (32).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile