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:
Feb. 12, 2008
Filed:
Sep. 26, 2005
Frank L. Clifton, Tonka Bay, MN (US);
Dean C. Erickson, Lino Lakes, MN (US);
Gregory B. Ingersoll, Lauderdale, MN (US);
Frank L. Clifton, Tonka Bay, MN (US);
Dean C. Erickson, Lino Lakes, MN (US);
Gregory B. Ingersoll, Lauderdale, MN (US);
Banner Engineering Corporation, Minneapolis, MN (US);
Abstract
A light screen safety curtain system including multiple light screens cascaded together to cooperatively protect an area or machine against unwanted intrusion. Such a system includes a plurality of independently operating light screens electrically connected to each other and to a control unit. When any one light screen detects an unwanted intrusion through a guarded opening, a stop or warning signal is generated by that light screen and is transmitted to the control unit. A method of configuring a light screen safety system without the need for an external programming device is provided.