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. 15, 1991
Filed:
Mar. 22, 1990
David L Cyphert, Canal Winchester, OH (US);
John A Robertson, Chillicothe, OH (US);
Telesis Controls Corporation, Chillicothe, OH (US);
Abstract
A linear array of solenoid actuated marker valve assemblies is contained in a housing configured as a manifold which carries marker fluid as well as nebulizing air supplies and a solvent distributing valve for use in clearing the air passages. All valve assemblies are accessible from the front surface of the device for ease of maintenance and are assembled in a manner assuring uniform and consistent valve stem travel advantageously eliminating the need for valve stem travel adjustment. The control system utilized with the valve assemblies provides both for an enhanced current input rate to the windings of the solenoid driven components, as well as an efficient and effective turn-off clamping procedure. This form of actuation of the solenoids achieves dynamically efficient and rapid turn-off and turn-on to the extent that the size of dots formed by the assembly can be provided having a broader range of diameters and these diameters can be adjusted remotely by a simple impedance variation. The features of the invention permit the application of characters at substantially enhanced production line speeds.