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:
Dec. 12, 1989
Filed:
Sep. 19, 1988
Applicant:
Inventors:
Assignee:
Hergeth Hollingsworth GmbH, Duelman, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
340561 ;
Abstract
A sensor (14) is carried by a moving element (7) which may be a cantilevered arm of a textile fiber opening machine (1) having a movable tower (2) on which cantilevered arm (7) is carried. Sensor (14) includes a bar in which an electrical current generated from (17) and sensed by (18) is conducted to set up an electromagnetic field around the moving element in a danger zone. Changes in the field caused by intrusion of the zone by a person are detected to cut off machine operation.