Patent US4171553A successfully refreshed from Google Patents.
US4171553A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stalk vacuum cleaner
Assignee: Individual
•
Filing: 1977-12-15
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Granted: 1979-10-23
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Expires: 1997-12-15
Abstract
Abstract A stalk vacuum cleaner having a casing and an air-suction socket at the lower end portion of the casing, wherein the dirt is fed from the top to a dust bag arranged in the upper end portion of the casing of the stalk vacuum cleaner under the action of a suction system arranged at the lower end portion of the casing of the stalk vacuum cleaner by means of a riser tube. The riser tube is in the form of a movable hose constituting a fixed component of the casing of the vacuum cleaner. The lower end of the hose is detachably connected to the air-suction socket.
Inventors
- 👤 Klaus Stein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:40
CPC Classifications
A; A47; A47L; A47L5/00; A47L5/12; A47L5/22; A47L5/24; A47L5/28; A47L5/32
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
288 words
A stalk vacuum cleaner comprising: (a) an elongated casing comprising partition means defining an elongated channel extending from the top of said casing to a position spaced from the bottom of said casing and at least one chamber adjacent said channel, the top end of said channel being open and the bottom end thereof being closed by said partition means; (b) a tubular air-suction socket integral with said casing and extending from the bottom end of said channel through said partition means, the lower end of said air-suction socket being adapted for connection to an attachment; (c) a first opening in the top of said casing communicating with said chamber; (d) a blower for drawing an air stream along a path through said first opening and chamber; (e) air filter means in said path between said first opening and said blower for removing dust particles from said air stream; and (f) a flexible hose, one end thereof being connected to said first opening and the free end thereof being adapted for connection to at least one attachment or alternatively for connection to the upper end of said air suction socket with said flexible hose extending from said opening through said channel from said top end thereof; (g) the portion of said casing defining the portion of said channel adjacent the bottom end of said channel having a second opening for access to the upper end of said air-suction socket for grasping said free end of said hose to connect and disconnect said free end of said hose to and from said upper end of said air-suction socket; (h) whereby said hose is substantially contained within said casing when said attachment connected to said air-suction socket is in use.
Claim 2
Dependent Claim
288 words
A stalk vacuum cleaner comprising: (a) an elongated casing comprising partition means defining an elongated channel extending from the top of said casing to a position spaced from the bottom of said casing and at least one chamber adjacent said channel, the top end of said channel being open and the bottom end thereof being closed by said partition means; (b) a tubular air-suction socket integral with said casing and extending from the bottom end of said channel through said partition means, the lower end of said air-suction socket being adapted for connection to an attachment; (c) a first opening in the top of said casing communicating with said chamber; (d) a blower for drawing an air stream along a path through said first opening and chamber; (e) air filter means in said path between said first opening and said blower for removing dust particles from said air stream; and (f) a flexible hose, one end thereof being connected to said first opening and the free end thereof being adapted for connection to at least one attachment or alternatively for connection to the upper end of said air suction socket with said flexible hose extending from said opening through said channel from said top end thereof; (g) the portion of said casing defining the portion of said channel adjacent the bottom end of said channel having a second opening for access to the upper end of said air-suction socket for grasping said free end of said hose to connect and disconnect said free end of said hose to and from said upper end of said air-suction socket; (h) whereby said hose is substantially contained within said casing when said attachment connected to said air-suction socket is in use.
Claim 3
Dependent Claim
21 words
A stalk vacuum cleaner according to claim 1 wherein the free end of said flexible hose is formed as a handle.
Claim 4
Dependent Claim
42 words
A stalk vacuum cleaner according to claim 1 wherein said first opening communicating with said upper chamber includes an intermediate rotary member, said one end of said flexible hose being secured to said intermediate member such that said flexible hose is rotatable.
Claim 5
Dependent Claim
20 words
A stalk vacuum cleaner according to claim 1 further comprising a removable cover for said second opening in said casing.
Claim 6
Dependent Claim
16 words
A stalk vacuum cleaner according to claim 1 wherein said flexible hose is extensible in length.
References Cited (Backward Citations)
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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) | 1982-10-22 | 1983-04-23 | 1983-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-10-22 | 1987-04-23 | 1987-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-10-22 | 1991-04-23 | 1991-10-23 | $7700.00 | Window Closed / Lapsed |