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:
May. 06, 2008
Filed:
Apr. 06, 2005
Applicants:
Mark Watson, Williamson, NY (US);
Stephen T. Pasquarella, Rochester, NY (US);
Inventors:
Mark Watson, Williamson, NY (US);
Stephen T. Pasquarella, Rochester, NY (US);
Assignee:
VA, Inc., Rochester, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 9/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electromagnetically operable rotary shutter is rendered bi-stable by the use of two linear electric motors, one to open the shutter and a second to close the shutter together with a latch that holds the shutter in either an open or a closed position in the absence of power to purposefully open or close the shutter.