ATE150127T1 - LIGHT BEAM DETECTOR FOR DOOR OPENER USING OPTICAL FIBERS - Google Patents

LIGHT BEAM DETECTOR FOR DOOR OPENER USING OPTICAL FIBERS

Info

Publication number
ATE150127T1
ATE150127T1 AT92120219T AT92120219T ATE150127T1 AT E150127 T1 ATE150127 T1 AT E150127T1 AT 92120219 T AT92120219 T AT 92120219T AT 92120219 T AT92120219 T AT 92120219T AT E150127 T1 ATE150127 T1 AT E150127T1
Authority
AT
Austria
Prior art keywords
light beam
optical fibers
door opener
beam detector
detector
Prior art date
Application number
AT92120219T
Other languages
German (de)
Inventor
Louis G Whitaker
Original Assignee
Gmi Holdings Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US07/843,264 external-priority patent/US5233185A/en
Application filed by Gmi Holdings Inc filed Critical Gmi Holdings Inc
Application granted granted Critical
Publication of ATE150127T1 publication Critical patent/ATE150127T1/en

Links

AT92120219T 1992-02-28 1992-11-26 LIGHT BEAM DETECTOR FOR DOOR OPENER USING OPTICAL FIBERS ATE150127T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/843,264 US5233185A (en) 1992-02-28 1992-02-28 Light beam detector for door openers using fiber optics

Publications (1)

Publication Number Publication Date
ATE150127T1 true ATE150127T1 (en) 1997-03-15

Family

ID=25289487

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92120219T ATE150127T1 (en) 1992-02-28 1992-11-26 LIGHT BEAM DETECTOR FOR DOOR OPENER USING OPTICAL FIBERS

Country Status (2)

Country Link
AT (1) ATE150127T1 (en)
DE (1) DE69218172T2 (en)

Also Published As

Publication number Publication date
DE69218172D1 (en) 1997-04-17
DE69218172T2 (en) 1997-10-09

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee