{"number":"US12697512B2","kindCode":"B2","documentType":"grant","title":{"original":"Z-shield™ filtered air protective system","english":"Z-shield™ filtered air protective system"},"abstract":{"original":"Personal protective equipment systems and methods of use are presented. In various embodiments, air enters the apparatus and passes through an optional pre-filter and through a one-way air “check” valve. The incoming air then enters a counter-flow heat exchange path and proceeds towards a heating chamber. The incoming air is heated to a desired temperature and exits via a return path. The air is cooled to a desired exit temperature suitable to be delivered to a user.…","english":"Personal protective equipment systems and methods of use are presented. In various embodiments, air enters the apparatus and passes through an optional pre-filter and through a one-way air “check” valve. The incoming air then enters a counter-flow heat exchange path and proceeds towards a heating chamber. The incoming air is heated to a desired temperature and exits via a return path. The air is cooled to a desired exit temperature suitable to be delivered to a user.…"},"applicants":["Zonit Structured Solutions, LLC"],"inventors":["William Pachoud","Steve Chapel"],"filingDate":"2021-04-05","publicationDate":"2026-08-04","grantDate":"2026-08-04","verifiedWithOffice":true,"pdfUrl":"https://downloadpatent.com/pdf/US12697512B2.pdf","pages":{"en":"https://downloadpatent.com/patent/US12697512B2","zh-Hant":"https://downloadpatent.com/zh-Hant/patent/US12697512B2","ja":"https://downloadpatent.com/ja/patent/US12697512B2"}}