Air filtration system including a helmet assembly
First Claim
1. A helmet assembly of an air filtration system for mounting to a head of a user to distribute air about the head of the user, said assembly comprising:
- an inner structural shell;
an outer structural shell spaced from said inner structural shell along at least a portion thereof to define at least one air flow channel between said inner and outer shells for channeling air about the head of the user; and
a fan module mounted to at least one of said inner and outer shells and including at least one air inlet and at least two air outlets, said fan module drawing air into said at least one air inlet and distributing air out through said at least two air outlets and into said air flow channel for distributing air about the head of the user.
2 Assignments
0 Petitions
Accused Products
Abstract
An air filtration system and a helmet for use in the air filtration system are disclosed and utilized to filter air between a head and body of a user and an external environment. The air filtration system and helmet include inner and outer shells that define an air flow channel for channeling air about the user. A fan module is mounted between the inner and outer shells and a scroll housing is mounted adjacent the fan module. The scroll housing includes an air inlet for drawing air into the air filtration system and helmet, and at least one air outlet to distribute air flow to the air flow channel. The helmet includes air exits at front and rear sections that are in fluid communication with the air flow channel and the air outlet or outlets. The air filtration system includes a gown operating as a filter for filtering the air.
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Citations
76 Claims
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1. A helmet assembly of an air filtration system for mounting to a head of a user to distribute air about the head of the user, said assembly comprising:
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an inner structural shell; an outer structural shell spaced from said inner structural shell along at least a portion thereof to define at least one air flow channel between said inner and outer shells for channeling air about the head of the user; and a fan module mounted to at least one of said inner and outer shells and including at least one air inlet and at least two air outlets, said fan module drawing air into said at least one air inlet and distributing air out through said at least two air outlets and into said air flow channel for distributing air about the head of the user. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. An air filtration system for filtering air between a head and body of a user and an environment external to the user, said air filtration system comprising:
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a helmet assembly adapted to be mounted on the head of the user and including a base section and a facial section, said base section of said helmet assembly further including an inner structural shell and an outer structural shell spaced from said inner structural shell to define at least one air flow channel between said inner and outer shells for channeling the air about the head of the user; a gown including a body portion for covering at least a portion of the user and a head portion for covering said base section of said helmet assembly, said head portion of said gown operating at least partially as a filter medium to filter air between the user and the external environment; and a fan module mounted to at least one of said inner and outer shells and including at least one air inlet and at least two air outlets, said fan module drawing air in through said at least one air inlet and distributing the air out through said at least two air outlets into said at least one air flow channel for distributing air about the head of the user.
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37. An air filtration system for filtering air between a head and body of a user and an environment external to the user, said air filtration system comprising:
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a helmet assembly including an inner structural shell and an outer structural shell spaced from said inner structural shell along at least a portion thereof to define at least one air flow channel between said inner and outer shells for channeling the air about the head of the user; a gown including a body portion for covering at least a portion of the body of the user and a head portion for covering at least a portion of said helmet assembly, said head portion of said gown operating at least partially as a filter medium to filter air between the user and the external environment; a face shield mounted to said head portion of said gown to permit the user to view through said head portion of said gown; and a fan module mounted to at least one of said inner and outer shells of said helmet assembly and including at least one air inlet and at least two air outlets, said fan module drawing air into said at least one air inlet and distributing the air out through said at least two air outlets and into said air flow channel for distributing air about the head of the user. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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48. A helmet assembly of an air filtration system for mounting to a head of a user to minimize strain on the head and neck of the user, said assembly comprising:
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a structural shell having a front section and a rear section; a rear support rigidly extending from said rear section of said structural shell such that said rear support is fixed from substantial movement relative to said rear section; a strap supported by said rear support and including a first end and a second end; and an adjustment device engaging said first and second ends of said strap to manipulate said first and second ends toward each other to tighten said strap and to pull said strap from said front section as said rear support remains fixed relative to said rear section and said strap, and to manipulate said first and second ends away from each other to loosen said strap and to push said strap toward said front section as said rear support remains fixed relative to said rear section and said strap. - View Dependent Claims (49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66)
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67. An air filtration system for filtering air between a user and an environment external to the user and for minimizing strain on a head and neck of the user, said air filtration system comprising:
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a helmet assembly including a structural shell having a front section and a rear section; a gown including a body portion for covering at least a portion of the body of the user and a head portion for covering at least a portion of said helmet assembly, said head portion of said gown operating at least partially as a filter medium to filter air between the user and the external environment; a face shield mounted to said head portion of said gown to cover a section of said helmet assembly thereby permitting the user to view through said head portion of said gown; a rear support rigidly extending from said rear section of said structural shell; a strap supported by said rear support and flexibly connected to and extending from said front section of said structural shell, said strap including a first end disposed within said first side of said adjustment segment, and a second end disposed within said second side of said adjustment segment; and an adjustment device engaging said first and second ends of said strap to manipulate said first and second ends toward each other to tighten said strap and to pull said strap from said front section as said rear support remains fixed relative to said rear section and said strap, and to manipulate said first and second ends away from each other to loosen said strap and to push said strap toward said front section as said rear support remains fixed relative to said rear section and said strap. - View Dependent Claims (68, 69, 70, 71, 72)
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73. A helmet assembly of an air filtration system for mounting to a head of a user to distribute air about the head of the user, said assembly comprising:
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an inner structural shell; an outer structural shell spaced from said inner structural shell along at least a portion thereof to define at least one air flow channel between said inner and outer shells for channeling air about the head of the user; at least one helmet air exit for distributing air from said air flow channel toward the head of the user; and a fan module mounted to at least one of said inner and outer shells and including at least one air inlet and at least two air outlets, said fan module drawing air in through said at least one air inlet and distributing the air out through said at least two air outlets into said air flow channel and to said at least one helmet air exit. - View Dependent Claims (74, 75, 76)
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Specification