US4820319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remote control and monitor means
Assignee: Individual
•
Filing: 1988-05-09
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Granted: 1989-04-11
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Expires: 2008-05-09
Abstract
Abstract A remote control-monitor console is provided for controlling and monitoring air filtration units located within an enclosed work area in which an asbestos abatement action is taking place. A pressure differential sensor is associated with at least one of the air filtration units located within the enclosed work area and is operatively connected to the remote-control console to enable the condition of the filters in the air filtration unit to be monitored without the necessity of entering the contaminated work area. The air filtration unit may also be operated and controlled by the control-monitor console.
Inventors
- 👤 Steven C. Griffis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:30
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/0084; B01D46/0086; B01D46/42; B01D46/44; B01D46/446; F; F24; F24F; F24F8/00; F24F8/10; B01D2273/00; B01D2273/30; B01D2279/00; B01D2279/50; B01D2279/51; F24F2221/00; F24F2221/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
132 words
In combination, an enclosed work area in which an asbestos abatement action is taking place, at least one air filtration unit in said enclosed space and having an intake end, a discharge end, a filter means positioned therebetween, and a powered blower fan means for pulling air therethrough, a pressure differential sensing means in said air filtration unit for sensing the pressure differential between the intake and discharge sides of said filter means, a remote control-monitor console means located remotely of said work area, said console means having a first readout means for indicating the said pressure differential, and first means operatively connecting said pressure differential sensing means and said first readout means whereby the condition of said filter means may be monitored at said console means without entering said work area.
Claim 2
Dependent Claim
132 words
In combination, an enclosed work area in which an asbestos abatement action is taking place, at least one air filtration unit in said enclosed space and having an intake end, a discharge end, a filter means positioned therebetween, and a powered blower fan means for pulling air therethrough, a pressure differential sensing means in said air filtration unit for sensing the pressure differential between the intake and discharge sides of said filter means, a remote control-monitor console means located remotely of said work area, said console means having a first readout means for indicating the said pressure differential, and first means operatively connecting said pressure differential sensing means and said first readout means whereby the condition of said filter means may be monitored at said console means without entering said work area.
Claim 3
Dependent Claim
56 words
The combination of claim 1 wherein said console means has a blower fan control means associated therewith for controlling the operation of said blower fan means, and second means operatively connecting said blower fan means and said blower fan control means whereby the operation of said blower fan means may be controlled from said console means.
Claim 4
Dependent Claim
67 words
The combination of claim 2 wherein a plurality of air filtration units having pressure differential sensing means provided therein are positioned in said work area and wherein said console is provided with a plurality of readout means for monitoring the condition of the various filters and wherein said console is provided with a plurality of control means for controlling the operation of the various air filtration units.
Claim 5
Dependent Claim
48 words
The combination of claim 2 wherein said work area is maintained in a negative pressure condition and wherein a pressure monitoring means is provided for monitoring the pressure within said work area, said console means having a display means which indicates the monitored pressure within said work area.
Claim 6
Dependent Claim
99 words
In combination, an enclosed work area in which an asbestos abatement action is taking place, at least one air filtration unit in said enclosed space and having an intake end, a discharge end, a filter means positioned therebetween, and a powered blower fan means for pulling air therethrough, a remote control-monitor console means located remotely of said work area, and means operatively connecting said air filtration unit in said enclosed space and said remote control-monitor console means whereby the operation of said air filtration unit may be monitored and controlled at said console means without entering said work area.
Claim 7
Dependent Claim
99 words
In combination, an enclosed work area in which an asbestos abatement action is taking place, at least one air filtration unit in said enclosed space and having an intake end, a discharge end, a filter means positioned therebetween, and a powered blower fan means for pulling air therethrough, a remote control-monitor console means located remotely of said work area, and means operatively connecting said air filtration unit in said enclosed space and said remote control-monitor console means whereby the operation of said air filtration unit may be monitored and controlled at said console means without entering said work area.
References Cited (Backward Citations)
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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) | 1992-04-10 | 1992-10-10 | 1993-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-10 | 1996-10-10 | 1997-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-10 | 2000-10-10 | 2001-04-11 | $7700.00 | Window Closed / Lapsed |