US4724574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction cleaner
Assignee: ELX HOLDINGS LLC
•
Filing: 1987-03-19
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Granted: 1988-02-16
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Expires: 2007-03-19
Abstract
Abstract A lightweight, upright, top-loading vacuum cleaner wherein a seal between the disk of a filter bag and a duct for conveying dirt-laden air to the bag is provided adjacent the outer peripheral edges of the disk resulting in the disk becoming an integral part of the seal while eliminating pressure differential across opposite sides of the disk. A portion of the duct extending into the filter bag is capable of being displaced to an open position for filter bag loading and unloading and is normally closed to maintain the seal by a latch which cooperates with the handle vacuum cleaner handle. The vacuum cleaner handle includes electrical components having projections which are releasably received and supported within an electrical receptacle supported by the vacuum cleaner housing.
Inventors
- 👤 Leonard E. Bowerman
- 👤 Daniel A. Peragine
- 👤 George C. Moyher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:02
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/10; A47L9/14; A47L9/1427; A47L5/00; A47L5/12; A47L5/22; A47L5/28; A47L5/30; A47L9/28; A47L9/2836; A47L9/2842; A47L9/2847; A47L9/2857; Y; Y10; Y10S; Y10S55/00; Y10S55/03
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
273 words
In a lightweight, upright vacuum cleaner, a base assembly including a suction nozzle, an elongated body housing, means attaching said body housing to said base assembly for pivotable movement relative thereto, said body housing including a motor housing assembly, a bulkhead assembly, a filter bag housing assembly, and a body closure assembly, means for securing said motor housing assembly, said bulkhead assembly and said filter bag housing assembly in assembled relation, means pivotably mounting said body closure assembly on said filter bag housing assembly, said filter bag housing assembly defining a vacuum chamber, air filter means supported within said vacuum chamber and including an apertured disk having an air-permeable bag secured thereto, said filter bag housing assembly including means for supporting said apertured disk adjacent outer peripheral edge portions, said body closure assembly including a duct terminating in a discharge nozzle, and seal means spaced substantially outwardly of said nozzle for applying a force to the outer peripheral edges of said disk to clamp and seal said disk between said seal means and said means for supporting said disk, elongated duct means extending between said suction nozzle and said body closure assembly duct means, a motor-fan unit mounted within said motor housing assembly for drawing an air stream through said suction nozzle, said elongated duct means, said body closure assembly duct and said air filter means to remove dust and dirt particles from said airstream, an elongated handle assembly, means supported by said bulkhead assembly for releasably receiving therein the lowermost end portion of said handle assembly, said handle assembly further including means for retaining said body closure assembly in a closed position.
Claim 2
Dependent Claim
273 words
In a lightweight, upright vacuum cleaner, a base assembly including a suction nozzle, an elongated body housing, means attaching said body housing to said base assembly for pivotable movement relative thereto, said body housing including a motor housing assembly, a bulkhead assembly, a filter bag housing assembly, and a body closure assembly, means for securing said motor housing assembly, said bulkhead assembly and said filter bag housing assembly in assembled relation, means pivotably mounting said body closure assembly on said filter bag housing assembly, said filter bag housing assembly defining a vacuum chamber, air filter means supported within said vacuum chamber and including an apertured disk having an air-permeable bag secured thereto, said filter bag housing assembly including means for supporting said apertured disk adjacent outer peripheral edge portions, said body closure assembly including a duct terminating in a discharge nozzle, and seal means spaced substantially outwardly of said nozzle for applying a force to the outer peripheral edges of said disk to clamp and seal said disk between said seal means and said means for supporting said disk, elongated duct means extending between said suction nozzle and said body closure assembly duct means, a motor-fan unit mounted within said motor housing assembly for drawing an air stream through said suction nozzle, said elongated duct means, said body closure assembly duct and said air filter means to remove dust and dirt particles from said airstream, an elongated handle assembly, means supported by said bulkhead assembly for releasably receiving therein the lowermost end portion of said handle assembly, said handle assembly further including means for retaining said body closure assembly in a closed position.
Claim 3
Dependent Claim
49 words
A vacuum cleaner as recited in claim 1 wherein said means supported by said bulkhead assembly for releasably receiving therein the lowermost end portion of said handle assembly comprises an electrical receptacle, and said lowermost end portion of said handle assembly includes projecting electrical connectors of a wiring harness.
Claim 4
Dependent Claim
24 words
A vacuum cleaner as recited in claim 1, and further including means for releasably securing said handle assembly to said filter bag housing assembly.
Claim 5
Dependent Claim
62 words
A vacuum cleaner as recited in claim 3, said filter bag housing assembly including an outer casing having surfaces defining a vertical slot therein, said means for releasably securing said handle assembly to said filter bag housing assembly including a plate having a threaded aperture supported in said vertical slot and a fastener extending through said handle assembly and into said plate.
Claim 6
Dependent Claim
68 words
A vacuum cleaner as recited in claim 1, said body closure assembly including latch means including a spring-biased projection, said handle assembly means for retaining said body closure assembly in a closed position including an opening therein for receiving said spring-biased projection, and means for displacing said projection from said opening to permit said body closure assembly to be displaced to provide access to said air filter means.
Claim 7
Dependent Claim
57 words
A vacuum cleaner as recited in claim 1, said means attaching said body housing to said base assembly for pivotable movement relative thereto including wheel supporting trunnions attached to said motor housing assembly, said base assembly including sockets for receiving therein portions of said trunnions, and means for retaining said portions of said trunnions in said sockets.
Claim 8
Dependent Claim
30 words
A vacuum cleaner as recited in claim 6, said body closure assembly further including means defining a port therein and closure means for selectively providing access to said vacuum chamber.
Claim 9
Dependent Claim
28 words
A vacuum cleaner as recited in claim 7 wherein said port closure means is aligned with said discharge nozzle, said port closure means being of flexible plastic construction.
Claim 10
Dependent Claim
45 words
A vacuum cleaner as recited in claim 1, said bulkhead assembly and said filter bag housing assembly being of plastic construction, said means for securing said motor housing assembly, said bulkhead assembly and said filter bag housing assembly in assembled relation including interlocking snap fasteners.
Claim 11
Dependent Claim
16 words
A vacuum cleaner as recited in claim 9 wherein said snap fasteners include interlocking hook portions.
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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) | 1991-02-15 | 1991-08-17 | 1992-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-15 | 1995-08-17 | 1996-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-15 | 1999-08-17 | 2000-02-16 | $7700.00 | Window Closed / Lapsed |