Patent US4553992A successfully refreshed from Google Patents.
US4553992A
Expired / Lapsed
US
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Scrubber apparatus for purifying foul air produced during an embalming, an autopsy or the like
Assignee: E F C Control Inc
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Filing: 1984-10-17
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Granted: 1985-11-19
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Expires: 2004-10-17
Abstract
Abstract An air scrubber apparatus which purifies foul air produced during an embalming or an autopsy carried out on a work table disposed in a room. The scrubber apparatus comprises a housing positioned above the work table, this housing having a first and a second side corresponding to a first and a second side of the work table, respectively. The housing defines from its first side to its second side a first longitudinal outer compartment provided at its two ends with outlets to the room, a central compartment having no bottom wall for thereby providing this central compartment with a wide bottom opening to the room, and a second longitudinal outer compartment also provided at its two ends with outlets to the room. An air filter designed to allow passage of air therethrough is positioned over the bottom opening of the central compartment and comprises a filtering material, including aluminum oxide and potassium permanganate, which filtering material allowing purifying of the foul air upon passage thereof through the air filter. A first and a second fan move the foul air towards the interior of the central compartment through the air filter for the purpose of purifying this foul air. The first fan transfers the purified air from the central compartment to the first outer compartment and the second fan transfers this purified air from the central compartment to the second outer compartment to thereby redistribute the purified air in the room through the end outlets of the first and second longitudinal outer compartments. An ultraviolet ray tube may also be mounted in the central compartment or in both the first and second outer compartments to kill germs, bacteria and the like present in the purified air. In order to increase the efficiency of the scrubber apparatus, a plexiglass wall structure may also be provided between the housing and the work table. The use of the scrubber apparatus is not limited to embalming and autopsy. It can of course be used for any other purpose provided that malodorous, pungent and/or corrosive gaseous substances similar to those inherent to embalming and autopsy or which can be removed by the air filter of the scrubber apparatus are mixed to the ambient air to produce foul air.
Inventors
- 👤 Jean-Guy Boissinot
- 👤 Pierre Begin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:14
CPC Classifications
A; A61; A61L; A61L9/00; A61L9/16; B; B01; B01D; B01D39/00; B01D53/00; B01D53/02; F; F24; F24F; F24F8/00; F24F8/20; F24F8/22
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
249 words
An air scrubber apparatus for purifying foul air produced during an embalming, an autopsy or the like carried out on a work table disposed in a room for embalming, autopsy or the like, comprising: a housing positioned above the work table, said housing defining a first and a second outer compartment disposed substantially horizontally with respect to each other, said housing also defining a central compartment disposed between said first and second outer compartments, said central compartment being provided with bottom inlet opening means for said foul air, and said first and second outer compartments being each provided with outlets to said room which are located at predetermined positions; air filter means positioned over said bottom inlet opening means of the central compartment, said filter means comprising a filtering material including aluminium oxide and potassium permanganate and being designed to allow passage of air therethrough, said filtering material which includes aluminium oxide and potassium permanganate purifying said foul air upon passage thereof through said filter means; and air pumping means for moving said foul air towards the interior of said central compartment through said filter means for the purpose of purifying said foul air, said pumping means comprising means for transferring the purified air from the central compartment to said first and second outer compartments in order to return the purified air to said room through said outlets, said predetermined positions of said outlets being selected so as to enable a redistribution of the purified air in said room.
Claim 2
Dependent Claim
249 words
An air scrubber apparatus for purifying foul air produced during an embalming, an autopsy or the like carried out on a work table disposed in a room for embalming, autopsy or the like, comprising: a housing positioned above the work table, said housing defining a first and a second outer compartment disposed substantially horizontally with respect to each other, said housing also defining a central compartment disposed between said first and second outer compartments, said central compartment being provided with bottom inlet opening means for said foul air, and said first and second outer compartments being each provided with outlets to said room which are located at predetermined positions; air filter means positioned over said bottom inlet opening means of the central compartment, said filter means comprising a filtering material including aluminium oxide and potassium permanganate and being designed to allow passage of air therethrough, said filtering material which includes aluminium oxide and potassium permanganate purifying said foul air upon passage thereof through said filter means; and air pumping means for moving said foul air towards the interior of said central compartment through said filter means for the purpose of purifying said foul air, said pumping means comprising means for transferring the purified air from the central compartment to said first and second outer compartments in order to return the purified air to said room through said outlets, said predetermined positions of said outlets being selected so as to enable a redistribution of the purified air in said room.
Claim 3
Dependent Claim
22 words
The air scrubber apparatus of claim 1, further comprising means for killing germs, bacteria and the like present in said purified air.
Claim 4
Dependent Claim
21 words
The air scrubber apparatus of claim 2, wherein said killing means comprise an ultraviolet ray tube mounted in said central compartment.
Claim 5
Dependent Claim
36 words
The air scrubber apparatus of claim 2, in which said killing means comprise a first ultraviolet ray tube mounted in the first outer compartment and a second ultraviolet ray tube mounted in the second outer compartment.
Claim 6
Dependent Claim
23 words
The air scrubber apparatus of claim 1, wherein said filtering material comprises activated pellets of aluminium oxide which are impregnated with potassium permanganate.
Claim 7
Dependent Claim
52 words
The air scrubber apparatus of claim 1, wherein said air filter means comprise two sheets of substantially rigid material mounted parallel to each other, said two sheets being provided with holes therein to allow passage of said foul air therethrough and defining a space therebetween which is filled with said filtering material.
Claim 8
Dependent Claim
15 words
The air scrubber apparatus of claim 6, in which said substantially rigid material comprises polypropylene.
Claim 9
Dependent Claim
63 words
The air scrubber apparatus of claim 1, wherein said air filter means have an external drawer-like shape, said central compartment being provided with bottom guides and with an end comprising an opening therein to receive said air filter means having an external drawer-like shape for the purpose of positioning said air filter means over said bottom inlet opening means of the central compartment.
Claim 10
Dependent Claim
72 words
The air scrubber apparatus of claim 1, wherein said air filter means comprise a first portion corresponding to a first part of said bottom inlet opening means and a second portion corresponding to a second part of the bottom inlet opening means, said scrubber apparatus comprising means for positioning said first and second portions of the air filter means over said first and second parts of the bottom inlet opening means, respectively.
Claim 11
Dependent Claim
16 words
The air scrubber apparatus of claim 1, comprising an external mesh covering said air filter means.
Claim 12
Dependent Claim
99 words
The air scrubber apparatus of claim 1, wherein said work table has a longitudinal axis, and wherein said housing has a longitudinal axis substantially parallel to the longitudinal axis of the work table, and a first and a second end, said housing further comprising a first and a second inner walls both extending from said first end to said second end of the housing, said first inner wall forming a common wall of said central compartment and said first outer compartment, and said second inner wall forming a common wall of said central compartment and said second outer compartment.
Claim 13
Dependent Claim
128 words
The air scrubber apparatus of claim 11, wherein said central compartment comprises a first half corresponding to the first end of said housing and a second half corresponding to the second end of said housing, and wherein said air pumping means comprise first air pumping means mounted within said first half of the central compartment, and second air pumping means mounted within said second half of the central compartment, said first pumping means comprising means for transferring a first part of the purified air from the central compartment to the first outer compartment through the first inner wall, and said second pumping means comprising means for transferring a second part of the purified air from said central compartment to said second outer compartment through said second inner wall.
Claim 14
Dependent Claim
42 words
The air scrubber apparatus of claim 1, in which said central compartment comprises no bottom wall thereby providing said bottom inlet opening means, and wherein said air filter means has a wall-like structure to constitute a bottom wall of said central compartment.
Claim 15
Dependent Claim
18 words
The air scrubber apparatus of claim 1, comprising lighting means mounted under said first and second outer compartments.
Claim 16
Dependent Claim
35 words
The air scrubber apparatus of claim 11, wherein said first and second outer compartments each comprise two ends, and wherein said outlets are located at the two ends of said first and second outer compartments.
Claim 17
Dependent Claim
30 words
The air scrubber apparatus of claim 1, in which said room comprises a ceiling, said scrubber apparatus comprising means for hanging up said housing from the ceiling of said room.
Claim 18
Dependent Claim
86 words
The air scrubber apparatus of claim 1, comprising an outer wall structure made at least in part of transparent material, the work table comprising a top surface and said outer wall structure defining between said work table and said housing a substantially closed volume in contact with said top surface and said filter means, said outer wall structure being provided with access means in order to allow access for a user to said substantially closed volume and therefore to said top surface of the work table.
Claim 19
Dependent Claim
89 words
The air scrubber apparatus of claim 17, further comprising an inner wall structure also made at least in part of transparent material and located inside said outer wall structure, said inner wall structure defining within the substantially closed volume a first volume in contact with said access means and said top surface, and a second volume in contact with said air filter means, said inner wall structure being designed to provide communication between the first and second volumes in the proximity of said top surface of the work table.
Claim 20
Dependent Claim
37 words
The air scrubber apparatus of claim 17, in which said outer wall structure comprises a first wall formed at least in part by a panel mounted through strap-hinges, said panel mounted through strap-hinges constituting said access means.
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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) | 1988-11-18 | 1989-05-20 | 1989-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-18 | 1993-05-20 | 1993-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-18 | 1997-05-20 | 1997-11-19 | $7700.00 | Window Closed / Lapsed |