Headgear-mountable respirator
A headgear-mountable respirator ( 100 ) including a first intake ( 106 A) and first associated impeller ( 108 A), as well as a second intake ( 106 B) and second associated impeller ( 108 B) located remotely from the first intake and the first impeller. The respirator further includes a device ( 112 ) for, in use, rotating at least one of the impellers, and an air delivery arrangement ( 103 A, 103 B) for, in use, delivering air drawn from the first and second intakes to a facial region of a user.
1. A headgear-mountable respirator ( 100 ) including:
a first intake ( 106 A) and first associated impeller ( 108 A);
a second intake ( 106 B) and second associated impeller ( 108 B) located remotely from the first intake and the first impeller;
a device ( 112 ) for, in use, rotating at least one of the impellers, and
an air delivery arrangement ( 103 A, 103 B) for, in use, delivering air drawn from the first and second intakes to a facial region of a user, the air delivery arrangement including a first conduit ( 103 A) leading from the first impeller ( 108 A) toward the facial region and a second conduit ( 103 B) leading from the second impeller ( 108 B) toward the facial region, wherein the first ( 103 A) and/or the second ( 103 B) conduit is/are transverse to an axis of the first ( 108 A) and/or the second ( 108 B) impeller.
2. A respirator according to claim 1 , wherein the second intake ( 106 B) is opposed to the first intake ( 106 A).
3. A respirator according to claim 2 , wherein the first impeller ( 108 A) and the second impeller have a common axis.
4. A respirator according to claim 1 , wherein the rotating device ( 112 ) rotates both the first ( 108 A) and the second ( 108 B) impellers.
5. A respirator according to claim 4 , wherein the rotating device ( 112 ) is located between the first ( 108 A) impeller and the second ( 108 B) impeller.
6. A respirator according to claim 5 , including a central conduit ( 110 ) between the first ( 108 A) and the second ( 108 B) impeller, the rotating device ( 112 ) being located in the central conduit.
7. A respirator according to claim 1 , wherein first and second conduits ( 103 A, 103 B) are substantially perpendicular to the axes.
8. A headgear-mountable respirator ( 100 ) including:
a first intake ( 106 A) and first associated impeller ( 108 A);
a second intake ( 106 B) and second associated impeller ( 108 B) located remotely from the first intake and the first impeller;
a device ( 112 ) for, in use, rotating at least one of the impellers, and
an air delivery arrangement ( 103 A, 103 B) for, in use, delivering air drawn from the first and second intakes to a facial region of a user, wherein the air delivery arrangement ( 103 ) directs at least some of the air drawn from the intakes ( 106 ) towards a visor portion of the headgear item, thereby providing a de-misting function.
9. A respirator according to claim 1 , further including a removable filter ( 118 ) fitted to the first ( 106 A) and/or the second ( 106 B) intake.
10. A respirator according to claim 1 , wherein the respirator ( 100 ) is directly or indirectly mounted on a peak portion ( 420 ) of a headgear item.
11. A respirator according to claim 10 , wherein the respirator ( 100 ) is mounted on (or integrated with) a releasable portion ( 404 ) that is releasably attached to the peak portion ( 420 ).
12. A respirator according to claim 11 , wherein the releasable portion ( 404 ) has a shape or profile that generally corresponds to a shape or profile ( 424 ) in the peak portion ( 420 ).
13. A respirator according to claim 12 , wherein the releasable portion ( 404 ) includes at least one formation ( 412 ) that, in use, allows the releasable portion to slidably fit into the shape/profile of the peak portion so that the releasable portion is in a fitted configuration, but hinders/prevents removal of the releasable portion from the fitted configuration.
14. A respirator according to claim 13 , wherein the at least one formation comprises a nub ( 412 ) with an angled edge ( 414 ′).
15. A headgear-mountable respirator ( 100 ) including:
a first intake ( 106 A) and first associated impeller ( 108 A);
a second intake ( 106 B) and second associated impeller ( 108 B) located remotely from the first intake and the first impeller;
a device ( 112 ) for, in use, rotating at least one of the impellers, and
an air delivery arrangement ( 103 A, 103 B) for, in use, delivering air drawn from the first and second intakes to a facial region of a user, wherein:
the respirator ( 100 ) is directly or indirectly mounted on a peak portion ( 420 ) of a headgear item;
the respirator ( 100 ) is mounted on (or integrated with) a releasable portion ( 404 ) that is releasably attached to the peak portion ( 420 );
the releasable portion ( 404 ) has a shape or profile that generally corresponds to a shape or profile ( 424 ) in the peak portion ( 420 );
the releasable portion ( 404 ) includes at least one formation ( 412 ) that, in use, allows the releasable portion to slidably fit into the shape/profile of the peak portion so that the releasable portion is in a fitted configuration, but hinders/prevents removal of the releasable portion from the fitted configuration;
the at least one formation comprises a nub ( 412 ) with an angled edge ( 414 ′); and
the nub ( 412 ) is generally triangular in shape, and at least some components of the respirator include an explosion proof housing ( 104 ).
16. A headgear item including a respirator according to claim 1 , including a mounting member ( 404 ) adapted to mount the respirator on a peak portion of the headgear item, the mounting member including an arrangement ( 412 ) releasably attaching the mounting member to the peak portion.