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WO1998039625A3 - Remote and proximal guard and interlock testing mechanisms and testing systems either separately or in combination - Google Patents

Remote and proximal guard and interlock testing mechanisms and testing systems either separately or in combination Download PDF

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Publication number
WO1998039625A3
WO1998039625A3 PCT/US1998/004196 US9804196W WO9839625A3 WO 1998039625 A3 WO1998039625 A3 WO 1998039625A3 US 9804196 W US9804196 W US 9804196W WO 9839625 A3 WO9839625 A3 WO 9839625A3
Authority
WO
WIPO (PCT)
Prior art keywords
testing
separately
remote
combination
interlock
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.)
Ceased
Application number
PCT/US1998/004196
Other languages
French (fr)
Other versions
WO1998039625A9 (en
WO1998039625A2 (en
Inventor
Ralph L Barnett
Theodore Liber
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.)
Individual
Original Assignee
Individual
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 US08/861,320 external-priority patent/US5903111A/en
Application filed by Individual filed Critical Individual
Priority to EP98908916A priority Critical patent/EP1015862A4/en
Priority to CA002283479A priority patent/CA2283479A1/en
Priority to AU66831/98A priority patent/AU6683198A/en
Publication of WO1998039625A2 publication Critical patent/WO1998039625A2/en
Publication of WO1998039625A3 publication Critical patent/WO1998039625A3/en
Publication of WO1998039625A9 publication Critical patent/WO1998039625A9/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • 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
    • F16P3/08—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 in connection with the locking of doors, covers, guards, or like members giving access to moving machine parts

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

This invention relates to novel systems (10) for testing guards closures or barriers used on hazardous machinery for personnel protection. The guards are tested separately or in conjunction with safety devices which may include interlock (12), locking mechanisms (L) and latching devices (S). The testing process proceeds without having to shut down the machine on which the guarding system is mounted. Testers are incorporated in the process for establishing the integrity of the safety devices and for executing self-testing.
PCT/US1998/004196 1997-03-03 1998-03-02 Remote and proximal guard and interlock testing mechanisms and testing systems either separately or in combination Ceased WO1998039625A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP98908916A EP1015862A4 (en) 1997-03-03 1998-03-02 Remote and proximal guard and interlock testing mechanisms and testing systems either separately or in combination
CA002283479A CA2283479A1 (en) 1997-03-03 1998-03-02 Remote and proximal guard and interlock testing mechanisms and testing systems either separately or in combination
AU66831/98A AU6683198A (en) 1997-03-03 1998-03-02 Remote and proximal guard and interlock testing mechanisms and testing systems either separately or in combination

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US3977097P 1997-03-03 1997-03-03
US60/039,770 1997-03-03
US08/861,328 1997-05-21
US08/861,320 US5903111A (en) 1996-05-21 1997-05-21 CRT protective circuit

Publications (3)

Publication Number Publication Date
WO1998039625A2 WO1998039625A2 (en) 1998-09-11
WO1998039625A3 true WO1998039625A3 (en) 1998-12-17
WO1998039625A9 WO1998039625A9 (en) 1999-02-18

Family

ID=56289829

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/004196 Ceased WO1998039625A2 (en) 1997-03-03 1998-03-02 Remote and proximal guard and interlock testing mechanisms and testing systems either separately or in combination

Country Status (3)

Country Link
AU (1) AU6683198A (en)
CA (1) CA2283479A1 (en)
WO (1) WO1998039625A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7470918B2 (en) * 2020-04-24 2024-04-19 パナソニックＩｐマネジメント株式会社 Safety switches and switch systems
CN113608145B (en) * 2021-07-14 2023-04-11 厦门科华数能科技有限公司 Multi-path photovoltaic module ground fault detection device and detection method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5281857A (en) * 1992-05-08 1994-01-25 Square D Company Self-checking interlock control system
US5648719A (en) * 1992-06-19 1997-07-15 Honeywell Inc. Magnetic sensor with characteristics that are changeable by an external magnetic device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5281857A (en) * 1992-05-08 1994-01-25 Square D Company Self-checking interlock control system
US5648719A (en) * 1992-06-19 1997-07-15 Honeywell Inc. Magnetic sensor with characteristics that are changeable by an external magnetic device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1015862A4 *

Also Published As

Publication number Publication date
AU6683198A (en) 1998-09-22
WO1998039625A2 (en) 1998-09-11
CA2283479A1 (en) 1998-09-11

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