Respirator test accessory
First Claim
1. A head form assembly for respirator testing, comprising:
- a face portion;
a base portion that cooperates with said face portion, said face portion and said base portion cooperating to define a recess that surrounds said face portion;
a bladder member disposed in said recess, a portion of said bladder member being compressed between said face portion and said base portion to secure said bladder member within said recess, said bladder member forming an inflatable bladder defining an interior chamber, said bladder member including first and second flange portions that are compressed between said face portion and said base portion to define said interior chamber, said flange portions cooperating to define an inlet to said interior chamber.
2 Assignments
0 Petitions
Accused Products
Abstract
A test accessory for testing a variety respirators. The accessory is designed to compliment existing equipment to provide a robust assessment of respirator performance. The accessory may include a head form having an inflatable bladder capable of fitting a variety of sizes of respirator masks. In some embodiments, the inflatable bladder does not rely on adhesives to effect a seal, thereby eliminating manufacturing and quality assurance steps. The test accessory may also include a detachable instrumentation module that may be removed from the accessory, enabling calibration and maintenance at a remote facility without need for transporting the entire unit. The module may also house a memory device that may be upgraded with calibration data and firmware during the calibration process.
41 Citations
26 Claims
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1. A head form assembly for respirator testing, comprising:
a face portion; a base portion that cooperates with said face portion, said face portion and said base portion cooperating to define a recess that surrounds said face portion; a bladder member disposed in said recess, a portion of said bladder member being compressed between said face portion and said base portion to secure said bladder member within said recess, said bladder member forming an inflatable bladder defining an interior chamber, said bladder member including first and second flange portions that are compressed between said face portion and said base portion to define said interior chamber, said flange portions cooperating to define an inlet to said interior chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A head form assembly for respirator testing, comprising:
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a face portion; a base portion that cooperates with said face portion, said face portion and said base portion cooperating to define a recess that surrounds said face portion; a bladder member disposed in said recess, a portion of said bladder member being compressed between said face portion and said base portion to secure said bladder member within said recess, said bladder member forming an inflatable bladder defining an interior chamber; and an adhesive disposed proximate said recess and between portions of said bladder member. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A head form assembly for respirator testing, comprising:
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a face portion; a base portion that cooperates with said face portion, said face portion and said base portion cooperating to define a recess that surrounds said face portion; a bladder member disposed in said recess, a portion of said bladder member being compressed between said face portion and said base portion to secure said bladder member within said recess, said bladder member forming an inflatable bladder defining an interior chamber; and an adaptor adapted establish a flow circuit through said head form assembly for detection of leaks in said head form assembly. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
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Specification