Half Facepiece
First Claim
Patent Images
1. A half facepiece, comprising:
- a support piece;
a head harness detachably connected to the support piece;
at least one filter removably adjacent to the support piece, wherein the support piece fixes the position of the filter thereto, the support piece and filter; and
,a sealing edge molded to either the support piece or filter.
4 Assignments
0 Petitions
Accused Products
Abstract
A half facepiece respirator has a shaped support piece supporting and fixing the position of a particle or paper filter insert or outsert with either the support piece or the particle filter incorporating a face sealing component. Placed within the shaped support piece, a grille may be placed in the lower section of the shaped support piece. Additionally the half facepiece includes a head harness having a release mechanism.
37 Citations
20 Claims
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1. A half facepiece, comprising:
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a support piece; a head harness detachably connected to the support piece; at least one filter removably adjacent to the support piece, wherein the support piece fixes the position of the filter thereto, the support piece and filter; and
,a sealing edge molded to either the support piece or filter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of decontaminating a half facepiece, comprising the steps of:
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providing a support piece, a head harness detachably connected to the support piece, at least one filter removably adjacent to the support piece, wherein the support piece fixes the position of the filter thereto, the support piece and filter, at least one exhaust valve, the exhaust valve positioned to transmit exhaust air through the support piece and a sealing edge molded to either the support piece or filter; disconnecting the support piece from the head harness; separating the filter from the support piece; washing the support piece, head harness and exhaust valve; and
,insert a new filter into the support piece for renewed use.
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Specification