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. 07, 1999
Filed:
Mar. 21, 1997
Sick AG, Waldkirch/Breisgau, DE;
Abstract
A protective device operating in contact-free manner, such as in particular a light barrier grid (10), including a transmitter unit and/or a receiver unit (12) for generating and/or for receiving sensing signals, such as in particular light signals which serve for the contact-free monitoring of a protective area. At least the transmitter unit and/or the receiver unit (12) of the protective device is accommodated in a pressure-tight, preferably tubular housing (14), which is at least partly permeable for the sensing signals and which in particular includes cable lead-throughs (16) which ensure explosion protection.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile