Loading patent…
AssigneesMassachusetts Institute of Technology, The Government of the United States, as represented by the Secretary of the Army
InventorsHolly McClung, Reed Wasson Hoyt, Lawrence M Candell, Joseph M. Mahan, Gary A Shaw, Andrew M Siegel, Robert Linton Standley, Kyle Thompson
Estimating the term…
A conventional flow tube for a metabolic cart is usually a straight length of pipe whose inner diameter is fixed by the respiratory burden imposed by the flow tube on the user, with a smaller diameter imposing a higher respiratory burden. The ratio of the straight flow tube's length to diameter is fixed by fluid dynamics, so increasing the flow tube's diameter causes the flow tube's length to increase. As the flow tube gets longer, it exerts more torque on the user's neck and jaw, creating discomfort. Reducing the flow tube's length causes an undesired increase in the respiratory burden but increasing the flow tube's diameter to reduce the respiratory burden makes the flow tube less comfortable, making the flow tube unconformable, hard to breathe through, or both. Bending the flow tube makes it possible to increase the flow tube's propagation length without increasing the flow tube's lever arm length.
A flow-rate proportional passive side-stream sampling system comprising:
A method of mixing fractions of exhalations in a mixing chamber, the method comprising:
Dependencies are inferred from the claim text.