US4248162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Table with electrostatic air purifier/cleaner
Assignee: Spellman High Voltage Electronics Corp
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Filing: 1979-07-26
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Granted: 1981-02-03
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Expires: 1999-07-26
Abstract
Abstract A table having a table top having a top surface. Grilles are provided in the table top and are in flow communication with an electrostatic precipitator for purifying the air. The electrostatic precipitator collects the smoke particles on a filter, the clean, filtered air being discharged at low velocity back into the room. This table equipped with air cleaner and filter prevents smoke generated by smokers and in ashtrays from diffusing throughout the room by capturing the smoke close to the source of the impurities.
Inventors
- 👤 S. Merrill Skeist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:55
CPC Classifications
B; B08; B08B; B08B15/00; B08B15/007; A; A47; A47B; A47B13/00; A47B13/08; A47B37/00; F; F24; F24F; F24F7/00; F24F7/003; F24F8/00; F24F8/10; F24F8/192; A47B2200/00; A47B2200/06; F24F8/95; F24F8/97; Y; Y02; Y02A; Y02A50/00; Y02A50/20
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
112 words
A table comprising a table top, said table having knee recesses so as to permit people to sit therearound to work and play, plenum chamber positioned below and connected to said table top, electrostatic precipitator means mounted in said plenum chamber, said table top having air entry grille means opening into the top surface thereof and in flow communication with said plenum chamber for capturing air containing tobacco smoke particles, fan means for directing the smoke particle laden air into said plenum chamber and through said electrostatic precipitator means and diffuser means for recirculating cleaned air at low velocity from said plenum chamber to the area in which the table is located.
Claim 2
Dependent Claim
112 words
A table comprising a table top, said table having knee recesses so as to permit people to sit therearound to work and play, plenum chamber positioned below and connected to said table top, electrostatic precipitator means mounted in said plenum chamber, said table top having air entry grille means opening into the top surface thereof and in flow communication with said plenum chamber for capturing air containing tobacco smoke particles, fan means for directing the smoke particle laden air into said plenum chamber and through said electrostatic precipitator means and diffuser means for recirculating cleaned air at low velocity from said plenum chamber to the area in which the table is located.
Claim 3
Dependent Claim
24 words
The table according to claim 1, wherein said grille means includes recesses for receiving and supporting ashtrays to capture smoke close to its source.
Claim 4
Dependent Claim
19 words
The table according to claim 1, wherein said grille means extends about said table top adjacent the periphery thereof.
Claim 5
Dependent Claim
19 words
The table according to claim 1, wherein said grille means is located at each corner of said table top.
Claim 6
Dependent Claim
16 words
The table according to claim 1, wherein said grille means extends transverse of said table top.
Claim 7
Dependent Claim
19 words
The table according to claim 1, wherein said electrostatic precipitator means is suspended from and below said table top.
Claim 8
Dependent Claim
40 words
The table according to claim 1, wherein said grille means includes intersecting grille members, some of which have higher positioned portions so that ashtrays, tumblers, chips, and various other articles can be placed therein without closing off said grille means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-02-03 | 1984-08-04 | 1985-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-03 | 1988-08-04 | 1989-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-03 | 1992-08-04 | 1993-02-03 | $7700.00 | Window Closed / Lapsed |