US4784676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable vacuum cleaner bag
Assignee: Individual
•
Filing: 1987-11-12
•
Granted: 1988-11-15
•
Expires: 2007-11-12
Abstract
Abstract A disposable bag for removal of dust vacuum cleaners comprised of a nonporous polymer composition sheeting sealed water tight for internally containing a quantity of water that functions as the dust removal media. The bag is configured for mounting internally within the external fabric bag customarily provided by the vacuum cleaner manufacturer. Discharge of dust laden air from the vacuum blower is connected to an air inlet on the bag from which an internal guide directs the air flow to within the body of water. Emerging from the water substantially dust free, the air is directed past baffles to eliminate entrained moisture before being discharged through an outlet opening to the surrounding environment.
Inventors
- 👤 Dorothy G. Hale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:13
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/10; A47L9/18; A47L9/181; A47L9/14; A47L9/185; B; B01; B01D; B01D47/00; B01D47/02; B01D47/021; B01D50/00; B01D50/20
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
174 words
A disposable dust collection bag for use internally of the dust collection compartment of a vacuum cleaner apparatus and comprising in combination: an elongated collection bag of nonporous composition defining an internal compartment having a portion in which to contain a body of liquid comprising the dust collection media, said bag being of a size and shape adapted to be received internally of the vacuum cleaner dust collection compartment with which the collection bag is to be utilized; inlet means defined in said collection bag at a location above the normal liquid level and adapted to receive dust laden air from the vacuum cleaner; conduit means extending downwardly internally of said collection bag in communication with said inlet for discharging the received dust laden air flow to a location within the body of liquid in said compartment portion; and outlet means defined in said collection bag at a location removed from the contained body of liquid through which air flow emerging from the body of liquid can be discharged relatively dust free to atmosphere.
Claim 2
Dependent Claim
174 words
A disposable dust collection bag for use internally of the dust collection compartment of a vacuum cleaner apparatus and comprising in combination: an elongated collection bag of nonporous composition defining an internal compartment having a portion in which to contain a body of liquid comprising the dust collection media, said bag being of a size and shape adapted to be received internally of the vacuum cleaner dust collection compartment with which the collection bag is to be utilized; inlet means defined in said collection bag at a location above the normal liquid level and adapted to receive dust laden air from the vacuum cleaner; conduit means extending downwardly internally of said collection bag in communication with said inlet for discharging the received dust laden air flow to a location within the body of liquid in said compartment portion; and outlet means defined in said collection bag at a location removed from the contained body of liquid through which air flow emerging from the body of liquid can be discharged relatively dust free to atmosphere.
Claim 3
Dependent Claim
57 words
A disposable dust collection bag in accordance with claim 1 including baffle means positioned in said compartment intervening in the flow path between said compartment portion and said outlet means and defining a relatively tortuous flow path by which entrained liquid in the emerging air flow is separated from the air flow for retention within said compartment.
Claim 4
Dependent Claim
37 words
A disposable dust collection bag in accordance with claim 2 in which said baffle means comprises a plurality of spaced apart baffle units extending in an interferring relation to the air flow emerging from said compartment portion.
Claim 5
Dependent Claim
42 words
A disposable dust collection bag according to claim 2 in which the body of liquid to be contained in said compartment portion comprises a controlled quantity of water occupying up to about twelve percent of the internal compartment volume of said bag.
Claim 6
Dependent Claim
42 words
A disposable dust collection bag in accordance with claim 4 in which said bag is of an upright configuration and said compartment portion is defined as through like in section along the bottom end thereof for containing the body of filtering liquid.
Claim 7
Dependent Claim
40 words
A disposable dust collection bag in accordance with claim 2 in which said bag is comprised of sheeting formed of a polymer composition of selected thickness and characterized as being able to withstand air flow pressures of about 15 psig.
Claim 8
Dependent Claim
26 words
A disposable dust collection bag in accordance with claim 6 in which said polymer composition is selected from the group consisting of polyethylene vinyl and polyvinylchloride.
Claim 9
Dependent Claim
164 words
In a vaccum cleaner apparatus having vacuum generating means and a collection compartment through which vacuum air is passed for collection of dust particles therefrom, a disposable dust collection bag for liner use within said collection compartment and comprising in combination: an elongated collection bag of nonporous composition defining an internal compartment having a portion in which to contain a body of liquid comprising a dust collection media; inlet means defined in said collection bag at a location above the normal liquid level and adapted to receive dust laden air from the vacuum cleaner; conduit means extending downwardly internally of said collection bag in communication with said inlet for discharging the received dust laden air flow to a location within the body of liquid in said compartment portion; and outlet means defined in said collection bag at a location removed from the contained body of liquid through which air flow emerging from the body of liquid can be discharged relatively dust free to atmosphere.
Claim 10
Dependent Claim
164 words
In a vaccum cleaner apparatus having vacuum generating means and a collection compartment through which vacuum air is passed for collection of dust particles therefrom, a disposable dust collection bag for liner use within said collection compartment and comprising in combination: an elongated collection bag of nonporous composition defining an internal compartment having a portion in which to contain a body of liquid comprising a dust collection media; inlet means defined in said collection bag at a location above the normal liquid level and adapted to receive dust laden air from the vacuum cleaner; conduit means extending downwardly internally of said collection bag in communication with said inlet for discharging the received dust laden air flow to a location within the body of liquid in said compartment portion; and outlet means defined in said collection bag at a location removed from the contained body of liquid through which air flow emerging from the body of liquid can be discharged relatively dust free to atmosphere.
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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) | 1991-11-15 | 1992-05-16 | 1992-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-15 | 1996-05-16 | 1996-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-15 | 2000-05-16 | 2000-11-15 | $7700.00 | Window Closed / Lapsed |