US4996746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flat cleaning apparatus for a card
Assignee: Maschinenfabrik Rieter AG
•
Filing: 1989-08-21
•
Granted: 1991-03-05
•
Expires: 2009-08-21
Abstract
Abstract The flat cleaning apparatus employs a comb for loosening fibers and dirt particles carried by the revolving flats of the revolving flat clothing. In addition, a casing which travels across the width of the revolving system has a suction nozzle for drawing up the loosened strips of fibers and dirt particles. In addition, a brush is provided downstream of the suction nozzle which is movable relative to the flats to clean between the flats so as to release deep-seated dirt after the strips are removed. The brush is mounted in a chamber which communicates with the suction nozzle so that a suction force is available for removing the deep-seated dirt brought up by the brush.
Inventors
- 👤 Giuseppe Verzilli
- 👤 Robert Demuth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:17
CPC Classifications
D; D01; D01G; D01G15/00; D01G15/76; D01G15/78; D01G15/785
Claims Analysis
Total Claims: 43
Claim 1
Independent Claim
94 words
A flat cleaning apparatus for a card comprising a comb for loosening waste fiber on the flats of a revolving flat system; a suction-extraction means downstream of said comb relative to the direction of movement of the flats for for movement longitudinally across the flats of the revolving flat system, said means including at least one suction nozzle for drawing-in loosened waste fiber from the flats of the revolving flat system; and a rotatable brush in communication with said suction nozzle for extracting deep-seated dirt from between the flats of the revolving flat system.
Claim 2
Dependent Claim
94 words
A flat cleaning apparatus for a card comprising a comb for loosening waste fiber on the flats of a revolving flat system; a suction-extraction means downstream of said comb relative to the direction of movement of the flats for for movement longitudinally across the flats of the revolving flat system, said means including at least one suction nozzle for drawing-in loosened waste fiber from the flats of the revolving flat system; and a rotatable brush in communication with said suction nozzle for extracting deep-seated dirt from between the flats of the revolving flat system.
Claim 3
Dependent Claim
22 words
An apparatus as set forth in claim 1 wherein said brush is disposed within said means and moves therewith across the flats.
Claim 4
Dependent Claim
29 words
An apparatus as set forth in claim 1 wherein said brush is of a length to extend across the flats and is stationary relative to said movable suction nozzle.
Claim 5
Dependent Claim
30 words
An apparatus as set forth in claim 1 wherein said means includes a casing having a partition subdividing said casing into said suction nozzle and a chamber containing said brush.
Claim 6
Dependent Claim
27 words
An apparatus as set forth in claim 1 wherein said brush is disposed downstream of said suction nozzle relative to said direction and remote from said comb.
Claim 7
Dependent Claim
19 words
An apparatus as set forth in claim 1 wherein said brush is movable towards and away from the flats.
Claim 8
Dependent Claim
17 words
An apparatus as set forth in claim 6 wherein said brush is periodically retracted from the flats.
Claim 9
Dependent Claim
23 words
An apparatus as set forth in claim 1 which further comprises means for rotating said brush in a selected one of two directions.
Claim 10
Dependent Claim
56 words
An apparatus as set forth in claim 1 wherein said suction-extraction-on means includes a chamber housing said brush and having a pair of walls extending in close proximity to opposite sides of said brush and narrowing to a location remote from said brush and a second suction nozzle communicating said chamber with said first suction nozzle.
Claim 11
Dependent Claim
29 words
An apparatus as set forth in claim 1 which further comprises a motor mounted on said suction extraction means and drivingly connected to said brush for rotating said brush.
Claim 12
Dependent Claim
39 words
An apparatus as set forth in claim 1 wherein said brush is mounted on a shaft of a length to extend across a card and comprising further comprising a motor for mounting on the card to drive said shaft.
Claim 13
Dependent Claim
29 words
An apparatus as set forth in claim 11 which further comprises a transmission drivingly connected between said shaft and said suction-extraction means for moving said means across a card.
Claim 14
Dependent Claim
25 words
An apparatus as set forth in claim 1 wherein said comb is pivotally mounted for oscillation relative to the flats of a revolving flat system.
Claim 15
Dependent Claim
17 words
An apparatus as set forth in claim 13 wherein said comb is movable perpendicularly of the flats.
Claim 16
Dependent Claim
44 words
An apparatus as set forth in claim 14 wherein said comb is movable in a sequence of movements from a starting position towards a travelling flat, then towards said suction-extraction means, then away from the travelling flat and then back to said starting position.
Claim 17
Dependent Claim
36 words
An apparatus as set forth in claim 1 wherein said suction-extraction means has a casing disposed about said brush and including a pair of suction nozzles on opposite sides of said brush for cleaning the flats.
Claim 18
Dependent Claim
19 words
An apparatus as set forth in claim 1 wherein said brush has at least one helically disposed brush strips.
Claim 19
Dependent Claim
24 words
An apparatus as set forth in claim 1 which further comprises a card clothing in said suction-extraction means for combing fibers from said brush.
Claim 20
Dependent Claim
121 words
A flat cleaning apparatus for a card comprising a comb for loosening waste fibers on the flats of a revolving flat system; a casing having at least one suction nozzle downstream of said comb relative to the direction of movement of the flats for drawing-in loosed waste fiber from the flats and a chamber downstream of and in communication with said suction nozzle relative to said direction; a rotatable brush downstream of said suction nozzle relative to said direction for extracting dirt from between the flats, at least part of said brush extending within said chamber to deliver extracted dirt to said suction nozzle within said casing; and means for moving said casing transversely of said comb longitudinally across the flats.
Claim 21
Dependent Claim
121 words
A flat cleaning apparatus for a card comprising a comb for loosening waste fibers on the flats of a revolving flat system; a casing having at least one suction nozzle downstream of said comb relative to the direction of movement of the flats for drawing-in loosed waste fiber from the flats and a chamber downstream of and in communication with said suction nozzle relative to said direction; a rotatable brush downstream of said suction nozzle relative to said direction for extracting dirt from between the flats, at least part of said brush extending within said chamber to deliver extracted dirt to said suction nozzle within said casing; and means for moving said casing transversely of said comb longitudinally across the flats.
Claim 22
Dependent Claim
19 words
An apparatus as set forth in claim 19 wherein said brush is mounted in said casing for movement therewith.
Claim 23
Dependent Claim
22 words
An apparatus as set forth in claim 20 wherein said brush extends through said casing and is stationary relative to said casing.
Claim 24
Dependent Claim
32 words
An apparatus as set forth in claim 20 wherein said casing has a second suction duct downstream of said brush relative to said direction and in communication with said one suction duct.
Claim 25
Dependent Claim
135 words
In a card, the combination of a revolving flat system having a plurality of parallel flats having a clothing thereon; a comb disposed above said system for loosening waste fibers on said flats; a casing disposed above said system downstream of said comb relative to the direction of movement of the flats, said casing having at least one nozzle for drawing-in loosened fiber and dirt from said flats and a chamber downstream of and in communication with said suction nozzle relative to the direction of movement of the flats; a rotatable brush for extracting dirt from between said flats and having at least one part extending within said chamber to deliver extracted fiber and dirt to said suction nozzle within said casing; and means for moving said casing across said system longitudinally of said flats.
Claim 26
Dependent Claim
135 words
In a card, the combination of a revolving flat system having a plurality of parallel flats having a clothing thereon; a comb disposed above said system for loosening waste fibers on said flats; a casing disposed above said system downstream of said comb relative to the direction of movement of the flats, said casing having at least one nozzle for drawing-in loosened fiber and dirt from said flats and a chamber downstream of and in communication with said suction nozzle relative to the direction of movement of the flats; a rotatable brush for extracting dirt from between said flats and having at least one part extending within said chamber to deliver extracted fiber and dirt to said suction nozzle within said casing; and means for moving said casing across said system longitudinally of said flats.
Claim 27
Dependent Claim
36 words
The combination as set forth in claim 23 wherein said suction nozzle is of a length sufficient to subject each respective flat to suction as said casing moves longitudinally across the length of said respective flat.
Claim 28
Dependent Claim
33 words
The combination as set forth in claim 23 wherein said means includes an endless chain and a cam secured between said chain and said casing for reciprocating said casing across said revolving system.
Claim 29
Dependent Claim
45 words
The combination as set forth in claim 23 which further comprises a slide secured to said casing, a pair of guide rails extending across said revolving system and grooved rollers mounted on said slide and rollably mounted on said rails for guiding said casing therealong.
Claim 30
Dependent Claim
66 words
The combination as set forth in claim 26 wherein said rollers are spaced from said guide rails and further comprising third roller mounted on said casing and a guide extending parallel to said guide rails to receive said third roller thereon, each of said third roller and guide surface being adjustable relative to said revolving system to adjust the distance between said brush and said flats.
Claim 31
Dependent Claim
114 words
A flat cleaning apparatus for a card comprising a comb for loosening waste fiber on the flats of a revolving flat system; a suction-extraction means downstream of said comb relative to the direction of movement of the flats for movement longitudinally across the flats of the revolving flat system, said means including at least one suction nozzle for drawing-in loosened waste fiber from the flats of the revolving flat system; and a brush disposed in said means for movement therewith across the flats, said brush being in communication with said suction nozzle for extracting deep-seated dirt from between the flats of the revolving flat system while being stationary relative to said movable suction nozzle.
Claim 32
Dependent Claim
114 words
A flat cleaning apparatus for a card comprising a comb for loosening waste fiber on the flats of a revolving flat system; a suction-extraction means downstream of said comb relative to the direction of movement of the flats for movement longitudinally across the flats of the revolving flat system, said means including at least one suction nozzle for drawing-in loosened waste fiber from the flats of the revolving flat system; and a brush disposed in said means for movement therewith across the flats, said brush being in communication with said suction nozzle for extracting deep-seated dirt from between the flats of the revolving flat system while being stationary relative to said movable suction nozzle.
Claim 33
Dependent Claim
30 words
An apparatus as set forth in claim 28 wherein said means includes a casing having a partition sub-dividing said casing into said suction nozzle and a chamber containing said brush.
Claim 34
Dependent Claim
23 words
An apparatus as set forth in claim 28 wherein said brush is disposed downstream of said suction nozzle and remote from said comb.
Claim 35
Dependent Claim
15 words
An apparatus as set forth in claim 28 wherein said brush is a rotatable brush.
Claim 36
Dependent Claim
19 words
An apparatus as set forth in claim 31 wherein said brush is movable towards and away from the flats.
Claim 37
Dependent Claim
29 words
An apparatus as set forth in claim 31 which further comprises a motor mounted on said suction extraction means and drivingly connected to said brush for rotating said brush.
Claim 38
Dependent Claim
38 words
An apparatus as set forth in claim 31 wherein said brush is mounted on a shaft of a length to extend across a card and further comprising a motor for mounting on the card to drive said shaft.
Claim 39
Dependent Claim
29 words
An apparatus as set forth in claim 34 which further comprises a transmission drivingly connected between said shaft and said suction-extraction means for moving said means across a card.
Claim 40
Dependent Claim
25 words
An apparatus as set forth in claim 28 wherein said comb is pivotally mounted for oscillation relative to the flats of a revolving flat system.
Claim 41
Dependent Claim
36 words
An apparatus as set forth in claim 28 wherein said suction-extraction means has a casing disposed about said brush and including a pair of suction nozzles on opposite sides of said brush for cleaning the flats.
Claim 42
Dependent Claim
19 words
An apparatus as set forth in claim 28 wherein said brush has at least one helically disposed brush strip.
Claim 43
Dependent Claim
24 words
An apparatus as set forth in claim 28 which further comprises a card clothing in said suction-extraction means for combing fibers from said brush.
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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) | 1994-03-04 | 1994-09-03 | 1995-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-03-04 | 1998-09-03 | 1999-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-03-04 | 2002-09-03 | 2003-03-05 | $7700.00 | Window Closed / Lapsed |