Methods and apparatus for providing safety default states in mechanical equipment, processes and mechanisms
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United States of America Patent
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Jun 20, 2023
Grant Date -
Aug 20, 2020
app pub date -
Feb 14, 2020
filing date -
Feb 14, 2019
priority date (Note) -
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Abstract
Methods and apparatus provide safety systems for operating equipment having confined spaces which, during normal use, have conditions, such as extreme temperatures, pressures and/or caustic/toxic chemicals or other harmful gases which can be fatal to an otherwise healthy adult human. To protect humans inadvertently trapped in the confined space after the start of a normal operation cycle, the safety systems not only stop the equipment which is creating the harmful condition, such as a cutting off a supply of high pressure steam, but also remove the harmful condition or render it survivable. Versions also open access doors permitting escape and/or rescue of persons trapped in the confined space.
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