US6192550B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dust-collecting device for vacuum cleaner and upright type vacuum cleaner
Assignee: Sanyo Electric Co Ltd
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Filing: 2000-01-28
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Granted: 2001-02-27
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Expires: 2020-01-28
Abstract
Abstract A dust-collecting device for a vacuum cleaner comprising a dust-collecting case which is fitted into a suction path extending from a suction nozzle to a motor fan and from which accumulated dust can be discharged by opening a bottom lid of the dust-collecting case, and a cylindrical filter fitted into the dust-collecting case. The filter is arranged to be rotatable, a spiral rib is formed at an outer periphery of the filter, and the device is equipped with a rotating means for rotating the filter. Dust which cannot be discharge by its own weight since it is in a compressed state can be pushed out through the spiral rib formed on the outer periphery of the filter by rotating the filter, so that dust accumulated within the dust-collecting case in a compressed state can be easily discharged.
Inventors
- 👤 Atsuo Hamada
- 👤 Kazumasa Kamatani
- 👤 Kazuyoshi Yoshimi
- 👤 Atsushi Okuda
- 👤 Souji Sakata
- 👤 Naoki Suetsugu
- 👤 Syuzou Ueyama
- 👤 Nobuaki Takahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:35
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/10; A47L9/106; A47L9/108; A47L5/00; A47L5/12; A47L5/22; A47L5/28; A47L9/16; A47L9/1608; A47L9/1658; A47L9/1666; A47L9/1683; A47L9/1691; A47L9/20
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
107 words
A dust-collecting device for a vacuum cleaner comprising a dust-collecting case which is fitted into a suction path extending from a suction nozzle to a motor fan in a freely attachable and detachable manner and from which accumulated dust can be discharged by opening a bottom lid of the dust-collecting case, and a cylindrical filter fitted into the dust-collecting case for filtering dust contained in air which is taken in into the dust-collecting case, wherein the filter is arranged to be rotatable, a spiral rib is formed at an outer periphery of the filter, and the device is equipped with a rotating means for rotating the filter.
Claim 2
Dependent Claim
107 words
A dust-collecting device for a vacuum cleaner comprising a dust-collecting case which is fitted into a suction path extending from a suction nozzle to a motor fan in a freely attachable and detachable manner and from which accumulated dust can be discharged by opening a bottom lid of the dust-collecting case, and a cylindrical filter fitted into the dust-collecting case for filtering dust contained in air which is taken in into the dust-collecting case, wherein the filter is arranged to be rotatable, a spiral rib is formed at an outer periphery of the filter, and the device is equipped with a rotating means for rotating the filter.
Claim 3
Dependent Claim
134 words
A dust-collecting device for a vacuum cleaner comprising a dust-collecting case which is fitted into a suction path extending from a suction nozzle to a motor fan in a freely attachable and detachable manner and from which accumulated dust can be discharged by opening a bottom lid of the dust-collecting case, a cylindrical pre-filter fitted into the dust-collecting case for filtering coarse dust contained in air which is taken in into the dust-collecting case, and a cylindrical main filter fitted into the pre-filter for filtering minute dust contained in air which has been filtered by the pre-filter for eliminating coarse dust, wherein the pre-filter is arranged to be rotatable, a spiral rib is formed at an outer periphery of the pre-filter, and the device is equipped with a rotating means for rotating the pre-filter.
Claim 4
Dependent Claim
134 words
A dust-collecting device for a vacuum cleaner comprising a dust-collecting case which is fitted into a suction path extending from a suction nozzle to a motor fan in a freely attachable and detachable manner and from which accumulated dust can be discharged by opening a bottom lid of the dust-collecting case, a cylindrical pre-filter fitted into the dust-collecting case for filtering coarse dust contained in air which is taken in into the dust-collecting case, and a cylindrical main filter fitted into the pre-filter for filtering minute dust contained in air which has been filtered by the pre-filter for eliminating coarse dust, wherein the pre-filter is arranged to be rotatable, a spiral rib is formed at an outer periphery of the pre-filter, and the device is equipped with a rotating means for rotating the pre-filter.
Claim 5
Dependent Claim
27 words
The dust-collecting device of claim 2 , wherein a filter portion of the pre-filter is designed to be located in a lower portion in the dust-collecting case.
Claim 6
Dependent Claim
30 words
The dust-collecting device of claim 2 , wherein the pre-filter is provided with elastic protrusions which hit against the main filter through rotation thereof to make the main filter oscillate.
Claim 7
Dependent Claim
33 words
The dust-collecting device of claim 2 , wherein the rotating means includes a handle and a gear mechanism for connecting a rotating axis of the handle and an attaching plate for the pre-filter.
Claim 8
Dependent Claim
44 words
The dust-collecting device of claim 2 , wherein the rotating means includes a slide lever and a gear mechanism which is connected to the slide lever in case the slide lever is slid in either direction for rotating the pre-filter in a specified direction.
Claim 9
Dependent Claim
36 words
The dust-collecting device of claim 1 , wherein the device is provided with a grip, and a fulcrum for opening and closing the bottom lid is provided on a same side as that of the grip.
Claim 10
Dependent Claim
36 words
The dust-collecting device of claim 1 , wherein the device is provided with a grip, and a fulcrum for opening and closing the bottom lid is provided on an opposing side as that of the grip.
Claim 11
Dependent Claim
212 words
An upright type vacuum cleaner with a dust-collecting device for a vacuum cleaner being fitted to a main body of the upright type vacuum cleaner in a freely attachable and detachable manner, the dust-collecting device comprising a dust-collecting case which is fitted into a suction path extending from a suction nozzle to a motor fan in a freely attachable and detachable manner and from which accumulated dust can be discharged by opening a bottom lid of the dust-collecting case, and a cylindrical filter fitted into the dust-collecting case for filtering dust contained in air which is taken in into the dust-collecting case, in which the filter is arranged to be rotatable, a spiral rib is formed at an outer periphery of the filter, and the device is equipped with a rotating means for rotating the filter, wherein the vacuum cleaner comprises a handle for operating the main body extending upward from a front surface side of the main body of the vacuum cleaner, the dust-collecting device is fitted to the front surface side of the main body of the vacuum cleaner in a freely attachable and detachable manner, and a grip of the dust-collecting device is formed to extend downward from the handle for operating the main body in a successive manner.
Claim 12
Dependent Claim
212 words
An upright type vacuum cleaner with a dust-collecting device for a vacuum cleaner being fitted to a main body of the upright type vacuum cleaner in a freely attachable and detachable manner, the dust-collecting device comprising a dust-collecting case which is fitted into a suction path extending from a suction nozzle to a motor fan in a freely attachable and detachable manner and from which accumulated dust can be discharged by opening a bottom lid of the dust-collecting case, and a cylindrical filter fitted into the dust-collecting case for filtering dust contained in air which is taken in into the dust-collecting case, in which the filter is arranged to be rotatable, a spiral rib is formed at an outer periphery of the filter, and the device is equipped with a rotating means for rotating the filter, wherein the vacuum cleaner comprises a handle for operating the main body extending upward from a front surface side of the main body of the vacuum cleaner, the dust-collecting device is fitted to the front surface side of the main body of the vacuum cleaner in a freely attachable and detachable manner, and a grip of the dust-collecting device is formed to extend downward from the handle for operating the main body in a successive manner.
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) | 2004-02-27 | 2004-08-28 | 2005-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-02-27 | 2008-08-28 | 2009-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-02-27 | 2012-08-28 | 2013-02-27 | $7700.00 | Window Closed / Lapsed |