SE372085B - - Google Patents

Info

Publication number
SE372085B
SE372085B SE7302757A SE7302757A SE372085B SE 372085 B SE372085 B SE 372085B SE 7302757 A SE7302757 A SE 7302757A SE 7302757 A SE7302757 A SE 7302757A SE 372085 B SE372085 B SE 372085B
Authority
SE
Sweden
Application number
SE7302757A
Inventor
L Svensson
Original Assignee
L Svensson
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 L Svensson filed Critical L Svensson
Priority to SE7302757A priority Critical patent/SE372085B/xx
Priority to DE19742409113 priority patent/DE2409113B2/en
Priority to US446423A priority patent/US3875403A/en
Publication of SE372085B publication Critical patent/SE372085B/xx

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
    • F16P3/00—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body
    • F16P3/12—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine
    • F16P3/14—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine the means being photocells or other devices sensitive without mechanical contact
    • F16P3/144—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine the means being photocells or other devices sensitive without mechanical contact using light grids

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Geophysics And Detection Of Objects (AREA)
SE7302757A 1973-02-27 1973-02-27 SE372085B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE7302757A SE372085B (en) 1973-02-27 1973-02-27
DE19742409113 DE2409113B2 (en) 1973-02-27 1974-02-26 LIGHT BARRIER ARRANGEMENT
US446423A US3875403A (en) 1973-02-27 1974-02-27 Light beam apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7302757A SE372085B (en) 1973-02-27 1973-02-27

Publications (1)

Publication Number Publication Date
SE372085B true SE372085B (en) 1974-12-09

Family

ID=20316754

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7302757A SE372085B (en) 1973-02-27 1973-02-27

Country Status (3)

Country Link
US (1) US3875403A (en)
DE (1) DE2409113B2 (en)
SE (1) SE372085B (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2283494A2 (en) * 1974-09-02 1976-03-26 Cometa Photoelectric scanning of control zone - by comparing count signals with scanning switch states to decide if scanning continues
CA1087274A (en) * 1976-09-02 1980-10-07 William F. Jacobsen Pulsed level sensor
US4224608A (en) * 1978-11-13 1980-09-23 Detection Systems, Inc. Single terminal detection system
SE428250B (en) * 1979-05-31 1983-06-13 Bert Jonsson PHOTOELECTRIC DEVICE FOR SENSING FORM
ES8201716A1 (en) * 1979-09-10 1981-12-16 Gordon Ambler Kenneth Safety mechanism for industrial machinery.
US4317992A (en) * 1979-12-10 1982-03-02 Honeywell Inc. Object detecting apparatus
JPS601724B2 (en) * 1980-05-20 1985-01-17 松下電工株式会社 optical relay
DE3509096A1 (en) * 1985-03-14 1986-09-25 Heinrich 3550 Marburg Sälzer Method and device for monitoring an opening
US4959805A (en) * 1987-03-17 1990-09-25 Alps Electric Co., Ltd. Coordinate detecting device
US4851746A (en) * 1987-04-15 1989-07-25 Republic Industries, Inc. Sensing apparatus for automatic door
DE3803033A1 (en) * 1988-02-02 1989-08-10 Sick Erwin Gmbh LIGHT BARRIER GRID
US4903009A (en) * 1988-05-18 1990-02-20 Eastman Kodak Company Intrusion detection device
GB2254916B (en) * 1991-04-15 1993-12-22 John Trett Detection systems
IL105543A (en) * 1993-04-28 1997-04-15 Elisra Electronic Systems Ltd System for monitoring a multiplicity of doors
DE4338978C2 (en) * 1993-11-15 1998-05-07 Sick Ag Method for the detection of defective light transmitters and / or light receivers of a light grid and light grid
DE4344321C2 (en) * 1993-12-23 1997-04-30 Siemens Ag Operating method of a light barrier module for automatically operating door systems and suitable light barrier module
CN1121039A (en) * 1994-09-16 1996-04-24 P·J·汤姆生 A lift sensor
EP0772166B2 (en) 1995-10-27 2003-02-12 Bankom Security Systems Ltd. A system for monitoring a multiplicity of doors
GB2309552B (en) * 1996-01-25 2000-01-19 Rwl Consultants Ltd Failsafe system monitoring
DE19605102A1 (en) * 1996-02-12 1997-08-14 Siemens Nixdorf Inf Syst Infrared security system
DE19715098B4 (en) * 1997-04-11 2004-12-23 Schneider Electric Gmbh monitoring circuit
DE19912142A1 (en) * 1999-03-18 2000-10-19 Fotoelektrik Pauly Gmbh & Co K Light barrier, for monitoring machinery, performs self-monitoring signal processing so output signal is inhibited if operating voltage fails and/or transmit/receive part fails and/or signal processing part is defective
US6166371A (en) * 1999-04-30 2000-12-26 Beckman Coulter, Inc. Diffuse reflective light curtain system
DE60326558D1 (en) * 2002-04-19 2009-04-23 Hill Rom Services Inc DEVICE FOR HOSPITAL BEDS FOR THE PERCEPTION OF OBSTACLES
US11406548B2 (en) 2018-09-27 2022-08-09 Hill-Rom Services, Inc. Obstacle detection IR beam filter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2007840C3 (en) * 1970-02-20 1979-11-15 Endl, Alfons, 8000 Muenchen Light barrier
US3746863A (en) * 1972-03-15 1973-07-17 Exotron Ind Ltd Light curtain control for a switch
US3805061A (en) * 1973-04-23 1974-04-16 Tyco Laboratories Inc Object detecting apparatus

Also Published As

Publication number Publication date
US3875403A (en) 1975-04-01
DE2409113B2 (en) 1977-06-02
DE2409113A1 (en) 1974-08-29

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