US4419716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor proof housing assembly and system
Assignee: Individual
•
Filing: 1983-01-03
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Granted: 1983-12-06
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Expires: 2003-01-03
Abstract
Abstract A sealed vapor proof housing assembly in combination with a system for isolating an electrical device from the ambient atmosphere comprising a casing having a removable door to provide access to the interior of the casing, a first multiple number of heat exchange fins projecting from the casing into the atmosphere, a second multiple number of heat exchange fins projecting from the casing within the interior thereof for transferring heat from the interior to the ambient atmosphere, a sleeve liner disposed within the casing contiguous to the interior fins for forming a compartment with the liner having open ends spaced from the door and rear end of the casing. A fan is mounted on the liner for circulating air in a closed circulating pattern in intimate contact with the interior fins. Air is pumped into the casing through a one way valve and a pressure switch is electrically coupled to the fan and a power source for disabling the fan in response to a leak in the casing.
Inventors
- 👤 Stephen Koo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:42
CPC Classifications
F; F21; F21V; F21V25/00; F21V25/02; F21V25/04; F21V29/00; F21V29/50; F21V29/70; F21V29/74; F21V25/12; F21V29/71; F21V29/76; F21V29/83
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
188 words
A sealed vapor proof housing assembly for isolating an electrical device from the ambient atmosphere external of said housing comprising: a hollow casing having a removble door for providing access to the interior of the casing; means for securing said door against said casing to provide a sealed enclosure within the interior thereof; a first multiple number of heat exchange fins projecting from said casing into the ambient atmosphere; a second multiple number of heat exchange fins projecting from said casing within said enclosure; a sleeve liner disposed within said enclosure contiguous to said second multiple number of heat exchange fins for forming a compartment within said enclosure; said sleeve liner having two open ends with each open end being recessed a predetermined distance from said casing to provide a clearance space at each open end between said sleeve liner and said casing, said electrical device being mounted upon said sleeve liner in said compartment and a power driven fan for circulating a cooling fluid in a closed circulating pattern through said compartment and said enclosure in intimate contact with said second multiple number of heat exchange fins.
Claim 2
Dependent Claim
188 words
A sealed vapor proof housing assembly for isolating an electrical device from the ambient atmosphere external of said housing comprising: a hollow casing having a removble door for providing access to the interior of the casing; means for securing said door against said casing to provide a sealed enclosure within the interior thereof; a first multiple number of heat exchange fins projecting from said casing into the ambient atmosphere; a second multiple number of heat exchange fins projecting from said casing within said enclosure; a sleeve liner disposed within said enclosure contiguous to said second multiple number of heat exchange fins for forming a compartment within said enclosure; said sleeve liner having two open ends with each open end being recessed a predetermined distance from said casing to provide a clearance space at each open end between said sleeve liner and said casing, said electrical device being mounted upon said sleeve liner in said compartment and a power driven fan for circulating a cooling fluid in a closed circulating pattern through said compartment and said enclosure in intimate contact with said second multiple number of heat exchange fins.
Claim 3
Dependent Claim
17 words
A sealed vapor proof housing assembly as defined in claim 1 wherein said cooling fluid is air.
Claim 4
Dependent Claim
32 words
A sealed vapor proof housing assembly as defined in claim 2 wherein said casing is substantially rectangular in geometry having four side walls and a rear wall transverse to the side walls.
Claim 5
Dependent Claim
44 words
A sealed vapor proof housing assembly as defined in claim 3 wherein said first multiple number of heat exchange fins project from each of said side walls in a parallel arrangement from one end of said casing adjacent said door to said rear wall.
Claim 6
Dependent Claim
40 words
A sealed vapor proof housing assembly as defined in claim 4 wherein said second multiple number of heat exchange fins project inwardly from each of said side walls in a parallel complimentary arrangement with said first multiple number of fins.
Claim 7
Dependent Claim
26 words
A sealed vapor proof housing assembly as defined in claim 5 wherein said door has an opening and a window in sealed engagement with said door.
Claim 8
Dependent Claim
23 words
A sealed vapor proof housing assembly as defined in claim 5 wherein said electrical device comprises a power supply and a lamp assembly.
Claim 9
Dependent Claim
128 words
In combination a sealed vapor proof housing assembly and system for isolating an electrical device from the ambient atmosphere external of said housing comprising a casing having a removable door for providing access to the interior of the casing; means for securing said door against said casing to provide a sealed enclosure within the interior thereof; a first multiple number of heat exchange fins projecting from said casing into the ambient atmosphere; a second multiple number of heat exchange fins projecting from said casing within said enclosure; a sleeve liner for forming a compartment within said enclosure, said sleeve liner having two open ends; a fan mounted on said sleeve liner; said electrical device including means for applying power to said fan and means for pressurizing said enclosure.
Claim 10
Dependent Claim
128 words
In combination a sealed vapor proof housing assembly and system for isolating an electrical device from the ambient atmosphere external of said housing comprising a casing having a removable door for providing access to the interior of the casing; means for securing said door against said casing to provide a sealed enclosure within the interior thereof; a first multiple number of heat exchange fins projecting from said casing into the ambient atmosphere; a second multiple number of heat exchange fins projecting from said casing within said enclosure; a sleeve liner for forming a compartment within said enclosure, said sleeve liner having two open ends; a fan mounted on said sleeve liner; said electrical device including means for applying power to said fan and means for pressurizing said enclosure.
Claim 11
Dependent Claim
22 words
In combination as defined in claim 8 wherein said means for pressurizing said enclosure includes an air valve mounted in said casing.
Claim 12
Dependent Claim
29 words
In the combination of claim 9 further comprising means responsive to the pressure in said enclosure for disabling said electrical device when the pressure is below a predetermined level.
Claim 13
Dependent Claim
35 words
In the combination as defined in claim 10 wherein said electrical device comprises a source of ultraviolet light and wherein said door includes a portal for transmitting light from said ultraviolet light through said door.
References Cited (Backward Citations)
US4219871A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-05 | 1987-06-06 | 1987-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-05 | 1991-06-06 | 1991-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-05 | 1995-06-06 | 1995-12-06 | $7700.00 | Window Closed / Lapsed |