GB9607368D0 - Proximity detectors - Google Patents

Proximity detectors

Info

Publication number
GB9607368D0
GB9607368D0 GBGB9607368.9A GB9607368A GB9607368D0 GB 9607368 D0 GB9607368 D0 GB 9607368D0 GB 9607368 A GB9607368 A GB 9607368A GB 9607368 D0 GB9607368 D0 GB 9607368D0
Authority
GB
United Kingdom
Prior art keywords
proximity detectors
detectors
proximity
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
GBGB9607368.9A
Other versions
GB2298483A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BRADBEER PETER F
Original Assignee
BRADBEER PETER F
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
Application filed by BRADBEER PETER F filed Critical BRADBEER PETER F
Publication of GB9607368D0 publication Critical patent/GB9607368D0/en
Publication of GB2298483A publication Critical patent/GB2298483A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V8/00—Prospecting or detecting by optical means
    • G01V8/10—Detecting, e.g. by using light barriers
    • G01V8/12—Detecting, e.g. by using light barriers using one transmitter and one receiver

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Measurement Of Optical Distance (AREA)
GB9607368A 1993-10-07 1994-10-07 Proximity detectors Withdrawn GB2298483A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB939320637A GB9320637D0 (en) 1993-10-07 1993-10-07 Proximity detectors
PCT/GB1994/002188 WO1995010057A1 (en) 1993-10-07 1994-10-07 Proximity detectors

Publications (2)

Publication Number Publication Date
GB9607368D0 true GB9607368D0 (en) 1996-07-03
GB2298483A GB2298483A (en) 1996-09-04

Family

ID=10743129

Family Applications (2)

Application Number Title Priority Date Filing Date
GB939320637A Pending GB9320637D0 (en) 1993-10-07 1993-10-07 Proximity detectors
GB9607368A Withdrawn GB2298483A (en) 1993-10-07 1994-10-07 Proximity detectors

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB939320637A Pending GB9320637D0 (en) 1993-10-07 1993-10-07 Proximity detectors

Country Status (4)

Country Link
EP (1) EP0760105A1 (en)
AU (1) AU7790594A (en)
GB (2) GB9320637D0 (en)
WO (1) WO1995010057A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8225458B1 (en) 2001-07-13 2012-07-24 Hoffberg Steven M Intelligent door restraint
US20050207616A1 (en) * 2004-03-17 2005-09-22 The Chamberlain Group, Inc. Movable barrier operator with an obstacle detector
GB2438422B (en) * 2006-05-22 2009-09-23 Memco Ltd Obstacle-detecting apparatus for a powered door system
DE102010012712A1 (en) * 2010-03-25 2011-09-29 Osram Opto Semiconductors Gmbh Light-emitting semiconductor device
EP2610647B1 (en) * 2011-12-27 2015-07-29 Sick AG Optoelectronic sensor
US11066276B2 (en) 2018-04-30 2021-07-20 Otis Elevator Company Enhanced door detection

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4339660A (en) * 1980-05-15 1982-07-13 Erwin Sick Gmbh Optik-Elektronik Reflection light barrier apparatus for recognizing both strongly and weakly reflecting objects
JPS59193382A (en) * 1983-04-18 1984-11-01 Sogo Keibi Hoshiyou Kk Detecting apparatus for invader
DE3539131A1 (en) * 1985-11-05 1987-05-14 Bosch Gmbh Robert DC GENERATOR
GB8619727D0 (en) * 1986-08-13 1986-09-24 Electrosense Ltd Proximity detectors
US5032716A (en) * 1989-09-11 1991-07-16 Frank Lam Motion triggered device/triggered message delivery system
US5012086A (en) * 1989-10-04 1991-04-30 Barnard Timothy J Optoelectronic pickup for stringed instruments

Also Published As

Publication number Publication date
WO1995010057A1 (en) 1995-04-13
AU7790594A (en) 1995-05-01
GB9320637D0 (en) 1993-11-24
EP0760105A1 (en) 1997-03-05
GB2298483A (en) 1996-09-04

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)