Patent US3591589A successfully refreshed from Google Patents.
US5113854A
Expired / Lapsed
US
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Quick-donning protective hood assembly
Assignee: Avox Systems Inc
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Filing: 1990-01-25
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Granted: 1992-05-19
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Expires: 2010-01-25
Abstract
Abstract A quick-donning protective hood assembly for respiratory protection from smoke and noxious gases. The assembly consists of a clear "TEFLON" film hood (12) having a scrubber canister (20) and an exhaust valve (42) supported thereon. A neck seal (14) is connected to the lower marginal edge of the hood. A springlike hoop (16) is connected to the lower marginal edge of the hood. A bib (18) is carried by the springlike hoop and supports an oxygen generator (22) which is interconnected with the scrubber canister by an oxygen supply line (24). Waist straps (54) extend from the sides of the bib and may be adjusted to secure the bib about the wearer. The assembly can be stored in a cylindrical storage container with the hoop being collapsed. When the assembly is withdrawn from the storage container, a lanyard (62) will initiate the operation of the chemical oxygen generator. In addition, chemiluminescent devices (64) are secured to the hoop when in the storage container, and the springing open of the hoop when withdrawn from the storage container will initiate a chemiluminescent reaction within the illuminating devices. The springlike hoop will additionally spring the assembly open to position the components for quick donning.
Inventors
- 👤 Jeffrey J. Dosch
- 👤 James V. Zappa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:11
CPC Classifications
A; A62; A62B; A62B25/00; A62B17/00; A62B17/04; A62B7/00; A62B7/08
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
151 words
A quick-donning protective hood assembly for respiratory protection from smoke and noxious gases; the hood assembly comprising: a hood capable of being donned over a head, the hood having an open lower marginal portion; a neck seal carried by the lower marginal portion of the hood, the neck seal being capable of engaging the neck of a user when the hood is donned over the head of the user; a springlike neck hoop connected to the lower marginal portion of the hood, the neck hoop being in a collapsed state when stored within a storage container, the neck hoop springing into an open hoop when withdrawn from the storage container to facilitate donning of the hood and neck seal about the head; and one or more chemiluminescent devices connected to the hood assembly, the operation of said devices being initiated when the protective hood assembly is withdrawn from the storage container.
Claim 2
Dependent Claim
151 words
A quick-donning protective hood assembly for respiratory protection from smoke and noxious gases; the hood assembly comprising: a hood capable of being donned over a head, the hood having an open lower marginal portion; a neck seal carried by the lower marginal portion of the hood, the neck seal being capable of engaging the neck of a user when the hood is donned over the head of the user; a springlike neck hoop connected to the lower marginal portion of the hood, the neck hoop being in a collapsed state when stored within a storage container, the neck hoop springing into an open hoop when withdrawn from the storage container to facilitate donning of the hood and neck seal about the head; and one or more chemiluminescent devices connected to the hood assembly, the operation of said devices being initiated when the protective hood assembly is withdrawn from the storage container.
Claim 3
Dependent Claim
41 words
The protective hood assembly as set forth in claim 1 wherein the chemiluminescent devices are light sticks secured to the neck hoop, which sticks will be bent during withdrawal of the assembly, the bending of the sticks initiating a chemiluminescent reaction.
Claim 4
Dependent Claim
235 words
A protective assembly comprising, in combination: a cylindrical storage container; and a quick-donning protective hood assembly for respiratory protection from smoke and noxious gases, said assembly being initially stored prior to use in said storage container, the hood assembly including a hood capable of being donned over a head, the hood having an open lower marginal portion, a neck seal carried by the lower marginal portion of the hood, the neck seal being capable of engaging the neck of a user when the hood is donned over the head of the user, a springlike neck hoop connected to the lower marginal portion of the hood, the neck hoop being in a collapsed elliptical state when stored within the storage container and providing a handle means for removal of the hood assembly from the storage container, the neck hoop being capable of springing into an open hoop when the quick-donning protective hood assembly is withdrawn from the storage container to facilitate donning of the hood and neck seal about the head, and an oxygen generator for supplying oxygen to the hood when the operation of the generator is initiated; and means including a lanyard which is secured to the inside of the storage container and which is also secured to the oxygen generator for causing the operation of the oxygen generator to be initiated when the quick-donning protective hood assembly is withdrawn from the storage container.
Claim 5
Dependent Claim
235 words
A protective assembly comprising, in combination: a cylindrical storage container; and a quick-donning protective hood assembly for respiratory protection from smoke and noxious gases, said assembly being initially stored prior to use in said storage container, the hood assembly including a hood capable of being donned over a head, the hood having an open lower marginal portion, a neck seal carried by the lower marginal portion of the hood, the neck seal being capable of engaging the neck of a user when the hood is donned over the head of the user, a springlike neck hoop connected to the lower marginal portion of the hood, the neck hoop being in a collapsed elliptical state when stored within the storage container and providing a handle means for removal of the hood assembly from the storage container, the neck hoop being capable of springing into an open hoop when the quick-donning protective hood assembly is withdrawn from the storage container to facilitate donning of the hood and neck seal about the head, and an oxygen generator for supplying oxygen to the hood when the operation of the generator is initiated; and means including a lanyard which is secured to the inside of the storage container and which is also secured to the oxygen generator for causing the operation of the oxygen generator to be initiated when the quick-donning protective hood assembly is withdrawn from the storage container.
Claim 6
Dependent Claim
31 words
The assembly as set forth in claim 3 further being characterized by the provision of of a bib secured to the neck hoop, the oxygen generator being carried by the bib.
Claim 7
Dependent Claim
35 words
The assembly as set forth in claim 4 wherein the bib carries a pair of waist straps which are adapted to be placed about the waist of the wearer to secure the bib in place.
Claim 8
Dependent Claim
49 words
The assembly as set forth in claim 4 further being characterized by the provision of a scrubber canister being mounted on an exterior portion of the hood, the scrubber canister including a venturi pump, and wherein an oxygen supply line extends from the oxygen generator to the scrubber canister.
Claim 9
Dependent Claim
230 words
A protective assembly comprising, in combination, an elongate storage container and a quick-donning protective hood assembly for respiratory protection from smoke and noxious gases, the hood assembly being stored prior to use in said storage container, the hood assembly comprising: a hood capable of being donned over a head, the hood having an open lower marginal portion; a scrubber canister carried by an external surface of the hood, the scrubber canister being provided with a venturi pump, and the scrubber canister being capable of removing carbon dioxide from air; elongate means providing a source of oxygen and inserted prior to use longitudinally in said storage container and connected to the venturi pump to cause the venturi pump to recirculate exhaled air through the scrubber canister for the removal of carbon dioxide; a neck seal carried by the lower marginal portion of the hood, the neck seal being capable of engaging the neck when the hood is donned over the head; and a springlike neck hoop connected to the lower marginal portion of the hood, the neck hoop being in a collapsed elliptical state when stored within the storage container and providing a handle means for removal of the hood assembly from the storage container, the neck hoop springing into an open hoop when withdrawn from the storage container to facilitate donning of the hood and neck seal about the head.
Claim 10
Dependent Claim
230 words
A protective assembly comprising, in combination, an elongate storage container and a quick-donning protective hood assembly for respiratory protection from smoke and noxious gases, the hood assembly being stored prior to use in said storage container, the hood assembly comprising: a hood capable of being donned over a head, the hood having an open lower marginal portion; a scrubber canister carried by an external surface of the hood, the scrubber canister being provided with a venturi pump, and the scrubber canister being capable of removing carbon dioxide from air; elongate means providing a source of oxygen and inserted prior to use longitudinally in said storage container and connected to the venturi pump to cause the venturi pump to recirculate exhaled air through the scrubber canister for the removal of carbon dioxide; a neck seal carried by the lower marginal portion of the hood, the neck seal being capable of engaging the neck when the hood is donned over the head; and a springlike neck hoop connected to the lower marginal portion of the hood, the neck hoop being in a collapsed elliptical state when stored within the storage container and providing a handle means for removal of the hood assembly from the storage container, the neck hoop springing into an open hoop when withdrawn from the storage container to facilitate donning of the hood and neck seal about the head.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-05-19 | 1995-11-18 | 1996-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-05-19 | 1999-11-18 | 2000-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-05-19 | 2003-11-18 | 2004-05-19 | $7700.00 | Window Closed / Lapsed |