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:
Jan. 07, 1986
Filed:
Aug. 20, 1984
Stephen Rothon, South Woodford, GB;
Ronald Collis, Sutton, GB;
Haden Drysys International Limited, London, GB;
Abstract
An aqueous solution carrying paint solids is fed through an inlet into a floatation tank. The clean liquid exits through an orifice whose size is controlled by a movable gate. The level of the liquid within the tank is sensed by an ultrasonic rangefinder and the distance signals output from this rangefinder are fed to an electronic controller. During normal operation, this controller periodically supplies power signals to an electric actuator to adjust the position of the gate whereby the level of the liquid in the tank can be maintained substantially at the a first predetermined level. The controller may also include means for causing the liquid to rise to a second predetermined level after a preset time such that the paint solids are transferred over a weir into a collecting vessel. Thereafter the liquid level is caused to rapidly drop and is again maintained at the first level.