CA2002524A1 - Switch apparatus including a pair of beam-type switches - Google Patents

Switch apparatus including a pair of beam-type switches

Info

Publication number
CA2002524A1
CA2002524A1 CA2002524A CA2002524A CA2002524A1 CA 2002524 A1 CA2002524 A1 CA 2002524A1 CA 2002524 A CA2002524 A CA 2002524A CA 2002524 A CA2002524 A CA 2002524A CA 2002524 A1 CA2002524 A1 CA 2002524A1
Authority
CA
Canada
Prior art keywords
switches
machine
operator
switch apparatus
exertive
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.)
Granted
Application number
CA2002524A
Other languages
French (fr)
Other versions
CA2002524C (en
Inventor
Jeffrey G. Herman
Mark C. Matzka
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.)
BREAK-A-BEAM Inc
Original Assignee
Jeffrey G. Herman
Mark C. Matzka
Break-A-Beam, 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 to US07/198,613 priority Critical patent/US4939358A/en
Application filed by Jeffrey G. Herman, Mark C. Matzka, Break-A-Beam, Inc. filed Critical Jeffrey G. Herman
Priority to CA002002524A priority patent/CA2002524C/en
Publication of CA2002524A1 publication Critical patent/CA2002524A1/en
Application granted granted Critical
Publication of CA2002524C publication Critical patent/CA2002524C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/941—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated using an optical detector
    • 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
    • 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
    • F16P3/18—Control arrangements requiring the use of both hands
    • F16P3/20—Control arrangements requiring the use of both hands for electric control systems
    • 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

Abstract

A manually operable switch apparatus for a machine having at least one mode of operation actuated by a control circuit includes a spaced pair of switches which are simultaneously manually operable without the application of exertive contact by an operator.
Preferably, each switch includes an infrared emitter spaced from an infrared receiver, and a single or double pole, double throw relay actuated when the beam between the emitter and receivers are broken, so as to cause actuation of an alternative mode of machine operation. The use of switches which do not require exertive contact obviates the injury to wrist and finger tendons experienced by machine operators when conventional palm buttons are employed on machines requiring repetitive operator manipulations. The use of a spaced pair of such switches requires that the operator place both hands on the switches in order to operate the machine, so that the operator cannot inadvertently place a hand in or adjacent to the machine during operation, thus serving to prevent injury to the worker. Such a switch apparatus is substantially more reliable than conventional mechanical and pneumatic switches, subject to significantly less breakdown in use.
CA002002524A 1986-10-08 1989-11-08 Switch apparatus including a pair of beam-type switches Expired - Lifetime CA2002524C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US07/198,613 US4939358A (en) 1986-10-08 1988-05-23 Switch apparatus including a pair of beam-type switches
CA002002524A CA2002524C (en) 1988-05-23 1989-11-08 Switch apparatus including a pair of beam-type switches

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/198,613 US4939358A (en) 1986-10-08 1988-05-23 Switch apparatus including a pair of beam-type switches
CA002002524A CA2002524C (en) 1988-05-23 1989-11-08 Switch apparatus including a pair of beam-type switches

Publications (2)

Publication Number Publication Date
CA2002524A1 true CA2002524A1 (en) 1991-05-08
CA2002524C CA2002524C (en) 1996-01-02

Family

ID=25673794

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002002524A Expired - Lifetime CA2002524C (en) 1986-10-08 1989-11-08 Switch apparatus including a pair of beam-type switches

Country Status (2)

Country Link
US (1) US4939358A (en)
CA (1) CA2002524C (en)

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US5168173A (en) * 1990-05-04 1992-12-01 Control Devices, Inc. Pushless two-hand run bar apparatus
US5077467A (en) * 1990-09-12 1991-12-31 Triad Controls, Inc. Photoelectric switch and relay system with disabling fail-safe monitoring circuitry
US5166513A (en) * 1991-05-06 1992-11-24 Coherent, Inc. Dual actuation photoelectric foot switch
US5367158A (en) * 1991-10-25 1994-11-22 Break-A-Beam, Inc. Photoelectric switch for use with a machine control circuit
US5410148A (en) * 1993-05-14 1995-04-25 Kes Corporation Safety switch system with photooptical and capacitance detection
US5451770A (en) * 1994-02-28 1995-09-19 Stewart; Jack D. Machine controller having optical elements within annular openings
US5602428A (en) * 1995-06-07 1997-02-11 Acrometal Companies, Inc. Switch mat with active threshold
US5923101A (en) * 1997-04-02 1999-07-13 Emerson Electric Company Non-contact key
US5803453A (en) * 1997-04-29 1998-09-08 International Game Technology Gaming machine light handle and associated circuitry
US6031220A (en) * 1998-06-29 2000-02-29 Berg Technology, Inc. No touch machine trigger system
US6285021B1 (en) 1999-07-27 2001-09-04 Banner Engineering Corp. Self checking safety switch
AU2001290826A1 (en) 2000-09-11 2002-03-26 Nbgs International, Inc. Water amusement conveyor system and method
US7179173B2 (en) * 2002-03-25 2007-02-20 Nbgs International Inc. Control system for water amusement devices
US7229359B2 (en) * 2003-10-24 2007-06-12 Henry, Schooley & Associates, L.L.C. Continuous water ride
US20050114706A1 (en) * 2003-11-26 2005-05-26 Destefano Jason Michael System and method for the collection and transmission of log data over a wide area network
US20050247863A1 (en) * 2004-05-04 2005-11-10 Susanne Arens Photoelectric switch for use in sealed cases
US7597630B2 (en) 2004-11-24 2009-10-06 Water Ride Concepts, Inc. Water amusement park conveyors
EP1876880A2 (en) 2005-04-20 2008-01-16 Henry, Schooley & Associates, L.L.C. Water amusement system with composite trees
US7727077B2 (en) 2005-08-03 2010-06-01 Water Ride Concepts, Inc. Water amusement park water channel flow system
US7775895B2 (en) 2005-08-03 2010-08-17 Water Ride Concepts, Inc. Water amusement park water channel and adjustable flow controller
US8282497B2 (en) 2005-08-30 2012-10-09 Water Ride Concepts, Inc. Modular water amusement park conveyors
US20070049386A1 (en) * 2005-08-30 2007-03-01 Henry Jeffery W Adjusting participant flow rate in water amusement parks
US7762899B2 (en) 2005-08-30 2010-07-27 Water Ride Concepts, Inc. Water amusement park conveyor support elements
US7815514B2 (en) 2005-08-30 2010-10-19 Water Ride Concepts, Inc. Water amusement park conveyor barriers
US8210954B2 (en) 2005-09-02 2012-07-03 Water Ride Concepts, Inc. Amusement water rides involving exercise circuits
US7828667B2 (en) 2005-09-02 2010-11-09 Water Ride Concepts, Inc. Methods and systems for active filtration of portions of self-contained floating marine parks
US7758435B2 (en) 2005-09-02 2010-07-20 Water Ride Concepts, Inc. Amusement water rides involving interactive user environments
US7857704B2 (en) 2005-09-15 2010-12-28 Water Ride Concepts, Inc. Amusement water rides involving games of chance
DE102006007264C5 (en) * 2006-02-10 2014-06-18 Pilz Gmbh & Co. Kg Safety switching device and method for safely switching on and off an electrical consumer
US7762900B2 (en) 2006-03-14 2010-07-27 Water Ride Concepts, Inc. Method and system of positionable covers for water amusement parks
US8079916B2 (en) 2008-12-18 2011-12-20 Water Ride Concepts, Inc. Themed amusement river ride system
US9011067B1 (en) 2013-01-09 2015-04-21 The United States Of America As Represented By The Secretary Of The Army System and method for vehicle deployment, extraction, and stowage
CN103203871B (en) * 2013-03-19 2015-05-27 京东方科技集团股份有限公司 Pressing fixture
US10360790B2 (en) 2016-04-22 2019-07-23 Banner Engineering Corp. Safety touch button system having an intercommunications link
US11879871B2 (en) * 2018-11-30 2024-01-23 Illinois Tool Works Inc. Safety systems requiring intentional function activation and material testing systems including safety systems requiring intentional function activation
US11726018B2 (en) * 2018-11-30 2023-08-15 Illinois Tool Works Inc. Safety system interfaces and material testing systems including safety system interfaces

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US3207957A (en) * 1962-05-23 1965-09-21 Cts Of Canada Ltd Safety control circuit
DE1221927B (en) * 1964-05-06 1966-07-28 Sick Erwin Light barrier, in particular accident protection device
US3242341A (en) * 1965-06-10 1966-03-22 Sperry Rand Corp Electrical safety control
US3704396A (en) * 1971-05-12 1972-11-28 Cincinnati Inc Safety device for machines
US3805085A (en) * 1973-05-30 1974-04-16 Keystone Automated Equipment C Safety system and method
US3842260A (en) * 1973-09-21 1974-10-15 Hormel & Co G Safety device for bacon press
US3895269A (en) * 1974-06-27 1975-07-15 Leo F Geremia Safety control circuit
US4015122A (en) * 1974-07-12 1977-03-29 Rubinstein Walter M Photo-electric object detection system
US3914621A (en) * 1974-10-07 1975-10-21 Gen Electric Circuit for enabling safe actuation of a machine
US4074602A (en) * 1976-12-30 1978-02-21 C. O. Porter Machinery Company Defecting saw
DE2704565A1 (en) * 1977-02-03 1978-08-10 Sick Optik Elektronik Erwin PHOTOELECTRONIC DEVICE
US4185192A (en) * 1978-03-27 1980-01-22 Frank E. Maddocks, III Alignment system using two photocells directed at each other
US4249074A (en) * 1978-06-06 1981-02-03 Xenex Corporation Intrusion detector for press brake
US4239961A (en) * 1979-01-23 1980-12-16 Theodore Lasar Photoelectric light curtain using retroreflector
US4227547A (en) * 1979-02-12 1980-10-14 Ross Operating Valve Company Valve safety indicating means
US4520262A (en) * 1979-09-10 1985-05-28 Kenneth Ambler Photoelectric safety screen with stray source detection
US4358651A (en) * 1981-02-12 1982-11-09 Bristol Corporation Machine safety guard
US4479053A (en) * 1981-03-11 1984-10-23 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Focal plane array optical proximity sensor
US4412268A (en) * 1981-10-02 1983-10-25 Dart Industries Inc. Safety switch system for industrial machines
JPS59140994A (en) * 1983-01-31 1984-08-13 株式会社小松製作所 Ray type safety device

Also Published As

Publication number Publication date
US4939358A (en) 1990-07-03
CA2002524C (en) 1996-01-02

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed
MKEC Expiry (correction)

Effective date: 20121202