FredKiesche 🇺🇦Clifford D. Simak had a “life blanket” in one of his stories (see link). He reused the idea in my current read (“So Bright the Vision”) in which the main character mentions the concept was used by a obscure SF author, hundreds of years before, name long lost. http://www.technovelgy.com/ct/content.asp?Bnum=1453
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