Personal respiratory protection device
First Claim
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1. Personal respiratory protection device for use by a wearer, comprising:
- a respirator body having a periphery, a filter media, forming at least part of the respirator body, and a gasket, the gasket being located at the periphery and extending along at least a portion of its length,wherein the gasket comprises a sheet-like flexible elastomeric material and is contoured, the contour comprising a ridge that projects away from the periphery and is formed from a local increase in thickness of the sheet-like flexible elastomeric material, wherein the contour is substantially V-shaped, and further wherein a peak of the V-shaped contour corresponds to the ridge.
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Abstract
The present invention relates to a personal respiratory protection device, in particular, such a device comprising a respirator body having a periphery, a filter media, forming at least part of the respirator body, and a gasket, the gasket being located at the periphery and extending along at least a portion of its length.
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Citations
23 Claims
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1. Personal respiratory protection device for use by a wearer, comprising:
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a respirator body having a periphery, a filter media, forming at least part of the respirator body, and a gasket, the gasket being located at the periphery and extending along at least a portion of its length, wherein the gasket comprises a sheet-like flexible elastomeric material and is contoured, the contour comprising a ridge that projects away from the periphery and is formed from a local increase in thickness of the sheet-like flexible elastomeric material, wherein the contour is substantially V-shaped, and further wherein a peak of the V-shaped contour corresponds to the ridge. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. Personal respiratory protection device for use by a wearer, comprising:
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a respirator body having a periphery, a filter media, forming at least part of the respirator body, and a gasket, the gasket being located at the periphery and extending along the entire periphery of the respirator body, wherein the gasket comprises a sheet-like flexible elastomeric material and is contoured, the contour comprising a ridge that projects away from the periphery and extends along only a portion of the gasket, wherein the contour is substantially V-shaped, and further wherein a peak of the V-shaped contour corresponds to the ridge. - View Dependent Claims (20, 21, 22, 23)
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Specification