Patent EP0190835A1 successfully refreshed from Google Patents.
Patent US3879797A successfully refreshed from Google Patents.
US3879797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction cleaner
Assignee: A SUTTER AG
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Filing: 1973-05-07
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Granted: 1975-04-29
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Expires: 1993-05-07
Abstract
Abstract This disclosure teaches a new construction of a cleaning device, particularly a suction cleaner having a dust suction part which has a motor, a fan, a dust filter, a first suction pipe and having a nozzle part including at least one motor-driven brush, wherein there is provided a second suction pipe in the same way as the first suction pipe leads via a valve device to the dust suction part, in such a way that by actuating the valve device one or other of the suction pipes can be optionally connected to the dust suction part. This construction permits to use the device for cleaning floor areas by using brushes with the possibility of separately connecting a suction pipe for cleaning other areas.
Inventors
- 👤 Rene Principe
- 👤 Jakob Hugentobler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:09
CPC Classifications
A; A47; A47L; A47L5/00; A47L5/12; A47L5/22; A47L5/28; A47L5/32
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
167 words
A suction cleaner having a dust suction part means, first and second suction pipes connected to said dust suction part means, the first suction pipe having a brush nozzle part means, a valve device connected to the first and second suction pipes, the valve device having two valve flaps of which the first valve flap is situated in one of the two suction pipes and the second valve flap is situated in the other of the two suction pipes, and means mechanically coupling with the two valve flaps so that one valve flap closes its associated suction pipe when the other valve flap in its suction pipe is arranged in an open position at least approximately parallel to the suction fluid flow along its suction pipe the opposing force to be applied for changing the position of the valve flaps can be transmitted from the guide arm by the cable pull means to the means mechanically coupling with the two valve flaps for moving the valve flaps.
Claim 2
Dependent Claim
167 words
A suction cleaner having a dust suction part means, first and second suction pipes connected to said dust suction part means, the first suction pipe having a brush nozzle part means, a valve device connected to the first and second suction pipes, the valve device having two valve flaps of which the first valve flap is situated in one of the two suction pipes and the second valve flap is situated in the other of the two suction pipes, and means mechanically coupling with the two valve flaps so that one valve flap closes its associated suction pipe when the other valve flap in its suction pipe is arranged in an open position at least approximately parallel to the suction fluid flow along its suction pipe the opposing force to be applied for changing the position of the valve flaps can be transmitted from the guide arm by the cable pull means to the means mechanically coupling with the two valve flaps for moving the valve flaps.
Claim 3
Dependent Claim
34 words
A cleaner as claimed in claim 1, wherein there is connected to the inlet of the second suction pipe at least a partly flexible manual suction hose having a coupling facility for suction nozzles.
Claim 4
Dependent Claim
69 words
A cleaner as claimed in claim 2, wherein the manual suction hose includes a nozzle guide handle and a rigid tubular component; the tubular component terminates at the hose end remote from the cleaner; the nozzle guide handle is attached at its front end to the tubular component; and a hand grip is carried at the rear end of the nozzle guide handle remote from the manual suction hose.
Claim 5
Dependent Claim
57 words
A cleaner as claimed in claim 3, wherein the nozzle guide handle has between its attachment to the tubular component and the hand grip an open hollow section into which the hose can be nested so that the nozzle guide handle encloses the hose along at least part of its length and encloses part of its circumference.
Claim 6
Dependent Claim
46 words
A cleaner as claimed in claim 3, wherein a housing contains the dust suction part means; and the housing has on its surface channel-like recesses in which at least part of the lengths of the manual hose and of the nozzle guide handle can be carried.
Claim 7
Dependent Claim
20 words
A cleaner as claimed in claim 5, wherein the channel-like recesses are provided on two opposite sides of the housing.
Claim 8
Dependent Claim
55 words
A cleaner as claimed in claim 5, wherein a support member is connected to a channel-like recess on one side of the housing and is connected to a channel-like recess on the other side; and the support member carries the manual suction hose in its passage from one side of the housing to the other.
Claim 9
Dependent Claim
24 words
A cleaner as claimed in claim 7, wherein the support member takes the form of an arch which also acts as a carrying handle.
Claim 10
Dependent Claim
29 words
A cleaner as claimed in claim 1 wherein the means mechanically coupling with the two valve flaps includes at least one rack and pinion means cooperating with said rack.
Claim 11
Dependent Claim
61 words
A cleaner as claimed in claim 1 wherein the suction cleaner has a guide arm; the suction pipes have straight portions running parallel to one another, both valve flaps being incorporated in the straight portion of their respective suction pipe; and the straight portions of the suction pipes are arranged at least approximately parallel to a part of the guide arm.
Claim 12
Dependent Claim
28 words
A cleaner as claimed in claim 10 wherein said guide arm has a hand grip; and means are mounted on the hand grip for actuating said valve device.
Claim 13
Dependent Claim
22 words
A cleaner as claimed in claim 10 wherein means are included on the guide arm for actuating the brush nozzle part means.
Claim 14
Dependent Claim
70 words
A cleaner as claimed in claim 1, wherein each suction pipe has a wall and a recess in the wall; and each of the two valve flaps, in the open position, lies in the recess in the wall of its associated suction pipe so that the surface of the valve flap facing the suction fluid flow lies substantially flush with the inside of the wall of its associated suction pipe.
Claim 15
Dependent Claim
45 words
A cleaner as claimed in claim 1 wherein the pair of valve flaps is biased into one of the two operative positions by a spring means and the switch over into the other operative position may be achieved by a force opposing this spring means.
Claim 16
Dependent Claim
79 words
A cleaner as claimed in claim 14 wherein the suction cleaner has a guide arm, a cable pull means extending between and interconnected to the guide arm and the means mechanically coupling with the two valve flaps; and the opposing force to be applied for changing the position of the valve flaps can be transmitted from the guide arm by the cable pull means to the means mechanically coupling with the two valve flaps for moving the valve flaps.
Claim 17
Dependent Claim
37 words
A cleaner as claimed in claim 1 wherein the suction cleaner has a housing having at least one cover to be opened by hand; and the cover allows access to the valve flaps of the suction pipes.
Claim 18
Dependent Claim
66 words
A cleaner as claimed in claim 1, wherein the suction cleaner has a suction fan; the suction pipes include valve seats; and the valve flaps and the valve seats are so arranged in the suction pipes that each valve flap is pressed in its closure position, due to the negative pressure created by the suction fan, against its valve seat during operation of the suction cleaner.
References Cited (Backward Citations)
US1763397A
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US2046684A
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US2056850A
Cited
US2625703A
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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) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |