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.

Date of Patent:
Apr. 26, 1988

Filed:

Jul. 06, 1982
Applicant:
Inventor:

Anis Husain, Roseville, MN (US);

Assignee:

Honeywell Inc., Minneapolis, MN (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350 9616 ; 350 9613 ; 350 9610 ;
Abstract

An output device is disclosed including a first light light guide having an input port and an output port; a second light guide adapted to allow light to be inserted into said first light guide at a first location in said first light guide; means for absorbing light propagating through a second location in said first light guide, said second location being between said input port and said first location; and means for allowing the detection of information concerning light propagating in said first light guide, said means for allowing detection being located between said input port and said first location. Four embodiments are presented, each being integrated optical devices adapted to provide fail safe protection when used in a bus line system.


Find Patent Forward Citations

Husain, Anis. (1988). Optical fail safe device (U.S. Patent No. 4740050). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4740050

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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