Powered air-purifying respirator assembly and manufacturing method
AssigneeFord Global Technologies, LLC
InventorsJennifer A. Herr-Rathke, Jeffrey Paul Luther, Martin P. Smets, Michael Medoro
Life of this patent
Estimating the term…
Abstract
A powered air-purifying respirator (PAPR) assembly includes, among other things, a tube extending from a filtration unit to a headpiece system. The tube is biased toward a looped position where the tube includes a loop. A PAPR manufacturing method includes, among other things, reorienting a tube to have a loop by placing the tube about a mandrel, heat-treating the tube, and removing the mandrel from the tube. The tube is biased toward a looped position after the removing due to the heat-treating while the tube is reoriented to have the loop.
Claims18
A powered air-purifying respirator (PAPR) assembly, comprising:
- a tube extending from a filtration unit to a headpiece system, the tube biased toward a looped position where the tube includes a loop.
A powered air-purifying respirator (PAPR) manufacturing method, comprising:
- reorienting a tube to have a loop by placing the tube about a mandrel;
- heat-treating the tube;
- and
- removing the mandrel from the tube, the tube biased toward a looped position after the removing due to the heat-treating while the tube is reoriented to have the loop.
A powered air-purifying respirator (PAPR) manufacturing method, comprising:
- connecting a first end portion of a tube to a filtration unit;
- connecting an opposite, second end portion of the tube to a headpiece system, the tube biased toward a looped position.
Dependencies are inferred from the claim text.