Patent ID: 11957940
Assignee: TURN2 SPECIALTY COMPANIES, LLC
Field: Other consumer goods (Other fields)
Classification: CPC A | IPC A

Claim 0:
1. A method to process high pressure air into low pressure breathing air for one or more sealing and locking helmets and/or one or more air respirators, the method comprising:
directing a first amount of the high pressure air from a primary air supply to a primary air module;
directing a second amount of the high pressure air from a secondary air supply to the primary air module, simultaneously with the first amount of the high pressure air from the primary air supply;
lowering the pressure of the first and second amounts of the high pressure air in the primary air module to thereby form a first amount of the low pressure breathing air in the primary air module;
directing the first amount of the low pressure breathing air from the primary air module to the one or more sealing and locking helmets and/or one or more air respirators;
directing a third amount of the high pressure air from the secondary air supply to a one valve back-up circuit in a back-up air module, wherein the third amount of the high pressure air bypasses the primary air module, and the back-up air module is configured to lower the pressure of the third amount of the high pressure air to thereby form a second amount of the low pressure breathing air; and
directing a fourth amount of the high pressure air from a reserve bottle, which is isolated from depletion by a one-way check valve, to the one valve back-up circuit in the back-up air module upon unavailability of the secondary air supply for the one valve back-up circuit, and the back-up air module is configured to lower the pressure of the fourth amount of the high pressure air to thereby form a third amount of the low pressure breathing air.