Patent US4373522A successfully refreshed from Google Patents.
US4373522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emergency fresh air supply device
Assignee: ZIEN MECHANICAL CONTRACTORS
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Filing: 1981-07-31
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Granted: 1983-02-15
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Expires: 2001-07-31
Abstract
Abstract An openable face mask storage chamber is mounted on the inner side of an outer building wall. The mask or masks are connected through tubing to fresh air supplied through a conduit extending through the building wall to the outside. A closure cap is disposed on the outer conduit end and is actuatable from inside the storage chamber to open and permit fresh air to enter the conduit. The closure cap, when open, functions as a baffle to force smoke or the like which is rising up along the building's outside wall away from the mouth of the conduit. Furthermore, an alert device is triggered by opening of the closure cap and which is perceivable by outsiders to warn them that people in the room are in danger.
Inventors
- 👤 Allen S. Zien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:21
CPC Classifications
A; A62; A62B; A62B15/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
140 words
An emergency fresh air supply device for people in a building room having an outside wall, comprising in combination: (a) housing means defining a storage chamber and an air chamber and adapted to be fixedly mounted on the inner side of said outside wall, and with said housing means being openable from the room side, (b) a fresh air conduit connected to said air chamber of said housing means and adapted to extend outwardly therefrom through the said building wall to form a fresh air inlet mouth on the outer side of said wall, (c) at least one face mask removably disposed within said storage chamber of said housing means and with said mask being connected to said conduit, (d) and a closure cap disposed at said inlet mouth of said conduit for normally closing said conduit to outside air.
Claim 2
Dependent Claim
140 words
An emergency fresh air supply device for people in a building room having an outside wall, comprising in combination: (a) housing means defining a storage chamber and an air chamber and adapted to be fixedly mounted on the inner side of said outside wall, and with said housing means being openable from the room side, (b) a fresh air conduit connected to said air chamber of said housing means and adapted to extend outwardly therefrom through the said building wall to form a fresh air inlet mouth on the outer side of said wall, (c) at least one face mask removably disposed within said storage chamber of said housing means and with said mask being connected to said conduit, (d) and a closure cap disposed at said inlet mouth of said conduit for normally closing said conduit to outside air.
Claim 3
Dependent Claim
23 words
The device of claim 1 which includes means for selectively moving said closure cap to open said conduit inlet mouth to outside air.
Claim 4
Dependent Claim
38 words
The device of claim 2 wherein said closure cap moving means comprises a pushrod pivotally connected at its outer end to said closure cap and with said pushrod extending inwardly through said conduit and into said housing means.
Claim 5
Dependent Claim
41 words
The device of claim 2 wherein said closure cap, when in its opened position, forms a baffle to force smoke or the like billowing upwardly along the outside of the building wall away from the said inlet mouth of said conduit.
Claim 6
Dependent Claim
42 words
The device of claim 4 wherein the lower portion of said closure cap is pivotally mounted to the lower portion of said conduit and inclines outwardly and upwardly in front of said inlet mouth when said cap is in its opened position.
Claim 7
Dependent Claim
33 words
The device of claim 2 or 4 which includes locator means actuated in response to moving of said closure cap to provide an alert to outsiders that the said device is in use.
Claim 8
Dependent Claim
21 words
The device of claim 6 wherein said locator means comprises a locator element which is visually observable from outside the building.
Claim 9
Dependent Claim
15 words
The device of claim 7 wherein said locator element is attached to said closure cap.
Claim 10
Dependent Claim
25 words
The device of claim 8 wherein said conduit comprises means for storing said locator element when said closure cap is in its normal conduit-closing position.
Claim 11
Dependent Claim
13 words
The device of claim 9 wherein said locator element comprises a flexible ribbon.
Claim 12
Dependent Claim
138 words
An emergency fresh air supply device for people in a building room having an outside wall, comprising in combination: (a) housing means adapted to be fixedly mounted on the inner side of the said outside wall, and with said housing means being openable from the room side and having a storage chamber and a fresh air chamber, (b) at least one face mask removably disposed in said storage chamber, and with said mask being connected to said fresh air chamber, (c) a fresh air conduit connected to said fresh air chamber and adapted to extend outwardly therefrom through the said building wall to form a fresh air inlet mouth on the outer side of the said wall, (d) and a closure cap disposed at said inlet mouth of said conduit for normally closing said conduit to outside air.
Claim 13
Dependent Claim
138 words
An emergency fresh air supply device for people in a building room having an outside wall, comprising in combination: (a) housing means adapted to be fixedly mounted on the inner side of the said outside wall, and with said housing means being openable from the room side and having a storage chamber and a fresh air chamber, (b) at least one face mask removably disposed in said storage chamber, and with said mask being connected to said fresh air chamber, (c) a fresh air conduit connected to said fresh air chamber and adapted to extend outwardly therefrom through the said building wall to form a fresh air inlet mouth on the outer side of the said wall, (d) and a closure cap disposed at said inlet mouth of said conduit for normally closing said conduit to outside air.
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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) | 1986-02-14 | 1986-08-16 | 1987-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-14 | 1990-08-16 | 1991-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-14 | 1994-08-16 | 1995-02-15 | $7700.00 | Window Closed / Lapsed |