US3910781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vertical-tank-type vacuum cleaner
Assignee: Individual
•
Filing: 1974-10-22
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Granted: 1975-10-07
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Expires: 1994-10-22
Abstract
Abstract A vacuum cleaner tank has superimposed separate top and bottom sections and is provided in its side with an air inlet for connection to a hose. Electrically operated suction means at the top of the tank draw air in through the hose and inlet and discharge it at the top of the tank after it has passed through a filter in the top section of the tank. The bottom section is provided with means for removably holding an open-top collection bag beneath the filter in a position to receive dirt from the air inlet and the upstream surface of the filter. Vertical pivot means secured to the side of the tank permit its top section to be swung to the side to uncover its bottom section so that the dirt-collection bag can be lifted out of the bottom section.
Inventors
- 👤 Jr Samuel Bryant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:19
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/10; A47L9/14; A47L9/1418; A47L5/00; A47L5/12; A47L5/22; A47L5/36; A47L5/365; A47L9/106; A47L9/12; A47L9/125
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
139 words
A VACUUM CLEANER COMPRISING A TANK HAVING SUPERIMPOSED SEPARATE TOP AND BOTTOM SECTIONS AND PROVIDED IN ITS SIDE WITH AN AIR UNLET FOR CONNECTION TO A FLEXIBLE HOSE, ELECTRICALLY OPERATED SUCTION MEANS AT THE TOP OF THE TANK FOR DRAWING AIR IN THROUGH SAID INLET AND DISCHARGING IT AT THE TOP OF THE TANK, A FILTER MOUNTED IN SAID TOP SECTION IN THE PATH OF THE AIR FLOWING FROM SAID INLET TO SAID SUCTION MEANS AND HAVING AN UPSTREAM SURFACE AND AN OPPOSITE DOWNSTREAM SURFACE, MEANS IN SAID BOTTOM SECTION FOR REMOVABLE AHOLDING AN OPEN-TOP COLLECTION BAG THEREIN BENEATH SAID FILTER IN A POSITION TO RECIEVE DIRT FROM THE UPSTREAM SURFACE OF THE FILTER, AND VERTICAL PIVOT MEANS SECURED TO THE SIDE OF THE TANK TO PERMIT ITS TOP SECTION TO BE SWUNG LATERALLY TO UNCOVER ITS BOTTOM SECTION,
Claim 2
Dependent Claim
139 words
A VACUUM CLEANER COMPRISING A TANK HAVING SUPERIMPOSED SEPARATE TOP AND BOTTOM SECTIONS AND PROVIDED IN ITS SIDE WITH AN AIR UNLET FOR CONNECTION TO A FLEXIBLE HOSE, ELECTRICALLY OPERATED SUCTION MEANS AT THE TOP OF THE TANK FOR DRAWING AIR IN THROUGH SAID INLET AND DISCHARGING IT AT THE TOP OF THE TANK, A FILTER MOUNTED IN SAID TOP SECTION IN THE PATH OF THE AIR FLOWING FROM SAID INLET TO SAID SUCTION MEANS AND HAVING AN UPSTREAM SURFACE AND AN OPPOSITE DOWNSTREAM SURFACE, MEANS IN SAID BOTTOM SECTION FOR REMOVABLE AHOLDING AN OPEN-TOP COLLECTION BAG THEREIN BENEATH SAID FILTER IN A POSITION TO RECIEVE DIRT FROM THE UPSTREAM SURFACE OF THE FILTER, AND VERTICAL PIVOT MEANS SECURED TO THE SIDE OF THE TANK TO PERMIT ITS TOP SECTION TO BE SWUNG LATERALLY TO UNCOVER ITS BOTTOM SECTION,
Claim 3
Dependent Claim
52 words
A vacuum cleaner according to claim 1, in which said pivot means include a vertical sleeVe secured to one of said tank sections, and a vertical post secured to the other tank section and extending into said sleeve, the post and sleeve being rotatable relative to each other on a vertical axis.
Claim 4
Dependent Claim
54 words
A vacuum cleaner according to claim 1, in which said pivot means include a vertical sleeve secured to said bottom tank section, and a vertical post secured to the top tank section and extending down into the sleeve, the post being rotatable in the sleeve to permit said lateral swinging of the top section.
Claim 5
Dependent Claim
74 words
A vacuum cleaner according to claim 3, including a vertical sleeve secured to said top section and aligned with said first-mentioned sleeve below it, the post being tubular and rigidly mounted in the upper sleeve, an electric switch at the top of said upper sleeve, electric wires connecting the switch with said suction means, and electric wires extending from said switch down through said sleeves and post for connection to a source of electricity.
Claim 6
Dependent Claim
112 words
A vacuum cleaner according to claim 1, including a first metal band extending from said pivot means substantially half way around the tank in one direction, the band being secured to the top of said bottom section and extending above it, a second metal band extending from said pivot means around the tank in the opposite direction to said first band, the second band being secured to the bottom of said top section and extending below it, and a resilient sealing strip secured to the exposed inner surface of each band and compressed against the outer surface of the tank section carrying the other band when said sections are in vertical alignment.
Claim 7
Dependent Claim
82 words
A vacuum cleaner according to claim 1, in which said filter is a bag open at its bottom and closed at its top, the vacuum cleaner including means in said top section of the tank supporting the top of the filter bag, and means forming a seal between the bottom of the filter bag and the side of said top section, said air inlet being disposed below the bottom of the filter bag but above said means for holding a collection bag.
Claim 8
Dependent Claim
60 words
A vacuum cleaner according to claim 6, said sealing means including a ledge extending around the inside of the lower portion of said top section, a ring extending around the open bottom of the filter bag directly beneath said ledge and secured to the bag, and said bag-supporting means pulling the bottom of the filter bag tightly against said ledge.
Claim 9
Dependent Claim
34 words
A vacuum cleaner according to claim 6, in which said filter bag supporting means include springs and manually operable means extending slidably through the side of said top section for shaking the filter bag.
Claim 10
Dependent Claim
71 words
A vacuum cleaner according to claim 1, in which said collection bag supporting means includes a ring adapted to fit in the open top of a collection bag and hold it against the side of said bottom section, and means projecting inwardly from the side of said bottom section directly beneath said ring to support it, said ring being adapted to be flexed inwardly to remove it from the collection bag.
Claim 11
Dependent Claim
46 words
A vacuum cleaner according to claim 1, including lugs extending inwardly from the bottom of said bottom section and provided with vertical holes to receive fasteners for mounting the tank on a base, and a bottom plate removably mounted in said bottom section above said lugs.
Claim 12
Dependent Claim
41 words
A vacuum cleaner according to claim 10, including a ledge extending around the inside of said bottom section above said lugs, a sealing gasket on said ledge, and means fastening said bottom plate to the ledge with said gasket between them.
References Cited (Backward Citations)
US3381327A
Cited
US3740933A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-06 | 1979-04-07 | 1979-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-06 | 1983-04-07 | 1983-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-06 | 1987-04-07 | 1987-10-07 | $7700.00 | Window Closed / Lapsed |