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. 30, 2013
Filed:
Jun. 11, 2008
Timothy J. Mickley, Elk River, MN (US);
Frank Genovese, Longboat Key, FL (US);
James Feng, Maple Grove, MN (US);
Leonard B. Richardson, Brooklyn Park, MN (US);
Timothy J. Mickley, Elk River, MN (US);
Frank Genovese, Longboat Key, FL (US);
James Feng, Maple Grove, MN (US);
Leonard B. Richardson, Brooklyn Park, MN (US);
Boston Scientific Scimed, Inc., Maple Grove, MN (US);
Abstract
An apparatus for precision pen height control which includes a dispensing member, a fluid dispensing system, a vertical position sensing system, and a vertical position controller. The fluid dispensing system is in fluid communication with an opening in the dispensing member via a tubular member. A vertical position sensing system, which includes a diffraction grating and a sensor, is engaged to the tubular member. The sensor is positioned adjacent the diffraction grating. The diffraction grating is engaged to a vertical support, which is engaged to the tubular member. The sensor produces a vertical position signal based upon the position of the vertical support. The vertical position controller is engaged to the vertical position sensing system, and receives a control signal generated from the vertical position signal. The vertical position controller produces and applies vertical forces to the vertical support in response to the control signal.