Patent US5237719A successfully refreshed from Google Patents.
Patent US4204297A successfully refreshed from Google Patents.
US4204297A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaner
Assignee: Individual
•
Filing: 1979-01-10
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Granted: 1980-05-27
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Expires: 1999-01-10
Abstract
Abstract A vacuum cleaner comprising a main body incorporating an electric fan and a dust collector, a nozzle having a motor-driven rotary brush therein, a flexible hose having one end connected to the main body, a bent pipe connected to the other end of the flexible hose, and an extension pipe connecting the bent pipe to the nozzle. An electrical cord extending from the nozzle and connected to the other end of the flexible hose is tensioned to extend along the extension pipe and the bent pipe and partly covered with a cord cover over the portion thereof coextensive with the bent pipe. The cord will not interfere with the movement of the nozzle, assuring an easy cleaning operation.
Inventors
- 👤 Ryuichi Yasunaga
- 👤 Shinya Tsutsumi
- 👤 Mototsugu Kuroda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:54
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/02; A47L9/04; A47L9/0405; A47L9/0411; A47L9/24; A47L9/242; A47L9/246; A47L9/248; A47L9/26
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
193 words
A vacuum cleaner comprising a cleaner main body incorporating an electric fan and a dust collector; a nozzle having a rotary brush rotatable by an electric motor and a connecting pipe turnable about a horizontal axis; means for holding the connecting pipe in communication with a suction opening of the main body, the communication means including an extension pipe connected at its one end to the connecting pipe, a flexible hose having a lead wire embedded therein and communicating at its one end with the suction opening, and a bent pipe interconnecting the extension pipe and the flexible hose; a first electrical connector electrically connecting one end of the lead wire to the main body; an electrical cord extending from the nozzle and electrically connected to the other end of the lead wire by a second electrical connector to supply current to the electric motor; a cord cover attached to the bent pipe for rendering the cord coextensive with the bent pipe along the outer surface thereof and covering the second electrical connector; and biasing means mounted on the nozzle for tensioning the cord extending along the outer surface of the extension pipe.
Claim 2
Dependent Claim
193 words
A vacuum cleaner comprising a cleaner main body incorporating an electric fan and a dust collector; a nozzle having a rotary brush rotatable by an electric motor and a connecting pipe turnable about a horizontal axis; means for holding the connecting pipe in communication with a suction opening of the main body, the communication means including an extension pipe connected at its one end to the connecting pipe, a flexible hose having a lead wire embedded therein and communicating at its one end with the suction opening, and a bent pipe interconnecting the extension pipe and the flexible hose; a first electrical connector electrically connecting one end of the lead wire to the main body; an electrical cord extending from the nozzle and electrically connected to the other end of the lead wire by a second electrical connector to supply current to the electric motor; a cord cover attached to the bent pipe for rendering the cord coextensive with the bent pipe along the outer surface thereof and covering the second electrical connector; and biasing means mounted on the nozzle for tensioning the cord extending along the outer surface of the extension pipe.
Claim 3
Dependent Claim
39 words
A vacuum cleaner as defined in claim 1 wherein said biasing means comprises a cord holder formed on the outer periphery of the connecting pipe, and a spring provided between the holder and a flange formed on the cord.
Claim 4
Dependent Claim
41 words
A vacuum cleaner as defined in claim 1 wherein the cord cover has one end turnably supported on the bent pipe and the other end provided with a pair of pawls engageable in the outer peripheral surface of the bent pipe.
Claim 5
Dependent Claim
19 words
A vacuum cleaner as defined in claim 3 wherein the cord cover has a knob for turning the cover.
Claim 6
Dependent Claim
34 words
A vacuum cleaner as defined in claim 1 or 3 wherein the cord cover is provided with a stopper for preventing the second electrical connector from disengagement under the tension acting on the cord.
Claim 7
Dependent Claim
51 words
A vacuum cleaner as defined in claim 1 wherein said biasing means comprises a plurality of cord holders provided within the nozzle, and a spring for pulling the portion of the cord between a pair of the holders in a direction away from a phantom line through the pair of holders.
Claim 8
Dependent Claim
35 words
A vacuum cleaner as defined in claim 1 wherein said biasing means comprises a reel for the cord provided within the nozzle to cause the take-up force of the cord reel to tension the cord.
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) | 1983-05-27 | 1983-11-26 | 1984-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-05-27 | 1987-11-26 | 1988-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-05-27 | 1991-11-26 | 1992-05-27 | $7700.00 | Window Closed / Lapsed |