US4537424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning apparatus
Assignee: Duepro AG
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Filing: 1982-09-30
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Granted: 1985-08-27
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Expires: 2002-09-30
Abstract
Abstract A cleaning apparatus, especially a suction nozzle, for a vacuum cleaner. The apparatus has a joint pan connected with an apparatus housing, and a joint head connected with an apparatus connecting piece for a handle of the vacuum cleaner. The joint parts are parts of a joint, especially a tilting joint, and delimit a gap of movement of the joint. At least one of the joint parts is a part which can be detached from the apparatus part respectively associated therewith, which detachable part is provided at least partially with a fiber packing which projects into the gap of movement. The fiber packing includes closely packed fibers which are arranged at least substantially at right angles on an associated supporting surface of the joint part.
Inventors
- 👤 Siegfried Maier
- 👤 Eckart Albrecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:31
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3284; F16J15/3288; A; A47; A47L; A47L9/00; A47L9/02; A47L9/24; A47L9/242
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
118 words
A cleaning apparatus for a vacuum cleaner which has a handle, said apparatus comprising: an apparatus housing; a joint pan connected to said housing; a connecting piece detachably connected to said handle; and a joint head connected to said connecting piece; said joint head and said joint pan forming a joint and delimiting a gap of movement; at least one of said joint head and said joint pan being detachably connected to its associated part, and being provided at least partially with a fiber packing which projects into said movement gap and is provided with closely packed fibers which are disposed substantially at right angles on an associated support surface of said joint head or said joint pan.
Claim 2
Dependent Claim
118 words
A cleaning apparatus for a vacuum cleaner which has a handle, said apparatus comprising: an apparatus housing; a joint pan connected to said housing; a connecting piece detachably connected to said handle; and a joint head connected to said connecting piece; said joint head and said joint pan forming a joint and delimiting a gap of movement; at least one of said joint head and said joint pan being detachably connected to its associated part, and being provided at least partially with a fiber packing which projects into said movement gap and is provided with closely packed fibers which are disposed substantially at right angles on an associated support surface of said joint head or said joint pan.
Claim 3
Dependent Claim
19 words
A cleaning device according to claim 1, in which said joint head is in the shape of a drum.
Claim 4
Dependent Claim
64 words
A cleaning device according to claim 1, in which said joint head has a cylindrical wall and an insert opening which extends transverse to the axis of said cylindrical wall, said insert opening being formed by openings in said cylindrical wall, said openings extending in the direction of the axis of said cylindrical wall and approximately over the entire length of said joint head.
Claim 5
Dependent Claim
60 words
A cleaning device according to claim 3, in which said connecting piece is provided with a connector part which in turn is provided with arresting grooves, with the longitudinal edges of one of said opening in said cylindrical wall of said joint head projecting into said arresting grooves to effect said connection of said joint head to said connecting piece.
Claim 6
Dependent Claim
23 words
A cleaning device according to claim 1, in which said joint head is a part of an insert piece for said joint pan.
Claim 7
Dependent Claim
144 words
A cleaning device according to claim 1, in which said connecting piece includes a first part connected to said joint head, and a second part detachably connected to said handle, said first and second parts being pivotaly interconnected; said first part being provided with a bearing recess, and said second part having a bearing part which is a radially outwardly projecting edge thereof, said bearing part projecting into said bearing recess to effect said pivotable interconnection and to delimit therewith a gap of movement; a ring being provided in said bearing recess ahead of said bearing part as viewed from said apparatus housing in the direction toward said second part of said connecting piece; said ring being provided with a further fiber packing which is provided with closely packed fibers which are disposed substantially at right angles to a support surface of said ring.
Claim 8
Dependent Claim
46 words
A cleaning device according to claim 6, in which said joint head is part of a tilting joint; in which said first part of said connecting piece is a sleeve-shaped intermediate piece; and in which said bearing recess is an annular groove in said intermediate piece.
Claim 9
Dependent Claim
43 words
A cleaning device according to claim 7, in which said ring is an open ring of elastic material, and is radially stressed in said annular groove; and in which said ring and said bearing part are held axially fixed in said annular groove.
Claim 10
Dependent Claim
33 words
A cleaning device according to claim 8, in which said second part of said connecting piece, in the vicinity of said bearing part, is provided with at least one, approximately axially extending slot.
Claim 11
Dependent Claim
26 words
A cleaning device according to claim 9, which includes several of said slots, said slots being spaced apart one after the other in the circumferential direction.
Claim 12
Dependent Claim
32 words
A cleaning device according to claim 9, in which said joint head and said ring are surrounded on all sides by said fiber packings, which are rigidly connected with their associated part.
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) | 1988-08-26 | 1989-02-25 | 1989-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-26 | 1993-02-25 | 1993-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-26 | 1997-02-25 | 1997-08-27 | $7700.00 | Window Closed / Lapsed |