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:
Sep. 11, 2007
Filed:
Jan. 14, 2005
Mark Holmes, Waterford, CT (US);
Mark Holmes, Waterford, CT (US);
Henkel Corporation, Rocky Hill, CT (US);
Abstract
The present invention provides a method and system for detecting operating status of the shutter. The device includes a shutter for receiving a light from a source, a solenoid for controlling movement of the shutter, and an optical sensor connected to the shutter for detecting the light received by the shutter. The solenoid produces a electrical signal indicating the solenoid operating state signal. The sensor produces electrical signal indicating open and closed stages of the shutter. The device further includes an electronic circuit for receiving both the electrical signals, and outputting an electrical output signal reflecting the operating status of the shutter.