Patent US3601955A successfully refreshed from Google Patents.
US3601955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for separating fibers from a conveying air stream
Assignee: Luwa Ltd
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Filing: 1969-04-30
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Granted: 1971-08-31
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Expires: 1989-04-30
Abstract
Abstract Separating fibers from a conveying air stream which conducts said fibers through a stationary inlet into a separating apparatus. The apparatus contains a filter and the separated material is ejected into a container or the like. According to an important aspect of the invention, an axially displaceable plunger mechanism is operably connected with a drive arrangement, this plunger mechanism possessing an opening which communicates via a telescopic or flexible member, defining the aforementioned filter, with the stationary inlet means.
Inventors
- 👤 Johann Walter Ferri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:41
CPC Classifications
D; D01; D01G; D01G23/00; D01G23/02; D01G23/08
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
204 words
An apparatus for separating fibers from a conveying airstream, comprising housing means having an infeed side and an outfeed side for the fibers and conveying airstream, a stationary inlet means provided for said housing means for delivering the conveying airstream charged with fibers into said housing means at said infeed side, a container disposed at the region of said outfeed side of said housing means for collecting the ejected fibers separated from said conveying airstream, an axially displaceable plunger means provided with an opening disposed in flow communication with said inlet means for the conveying airstream charged with fibers, said plunger means having opposed plunger faces to opposite sides of said plunger opening, one of said plunger faces confronting said inlet means and the other of said plunger faces facing away from said inlet means drive means for said axially displaceable plunger means, and an air permeable filter member communicating said inlet means with said plunger opening and cooperating with said plunger means such as to permit escape of at least part of said conveying air through said filter member externally thereof while said fibers move through said plunger opening into said container to a position to be acted upon by said plunger means.
Claim 2
Independent Claim
204 words
An apparatus for separating fibers from a conveying airstream, comprising housing means having an infeed side and an outfeed side for the fibers and conveying airstream, a stationary inlet means provided for said housing means for delivering the conveying airstream charged with fibers into said housing means at said infeed side, a container disposed at the region of said outfeed side of said housing means for collecting the ejected fibers separated from said conveying airstream, an axially displaceable plunger means provided with an opening disposed in flow communication with said inlet means for the conveying airstream charged with fibers, said plunger means having opposed plunger faces to opposite sides of said plunger opening, one of said plunger faces confronting said inlet means and the other of said plunger faces facing away from said inlet means drive means for said axially displaceable plunger means, and an air permeable filter member communicating said inlet means with said plunger opening and cooperating with said plunger means such as to permit escape of at least part of said conveying air through said filter member externally thereof while said fibers move through said plunger opening into said container to a position to be acted upon by said plunger means.
Claim 3
Dependent Claim
22 words
Apparatus for separating fibers from a conveying airstream as defined in claim 1, wherein said filter member is a telescopically constructed element.
Claim 4
Dependent Claim
29 words
Apparatus for separating fibers from a conveying airstream as defined in claim 1, wherein said container comprises a sack, and means for detachably connecting said sack with the apparatus.
Claim 5
Dependent Claim
56 words
An apparatus for separating fibers from a conveying airstream as defined in claim 1, wherein said container is a sack, and where said filter member is secured to said plunger means and said filter member situated in front of said sack in flow direction of said conveying airstream forms the last portion of said inlet means.
Claim 6
Dependent Claim
26 words
An apparatus for separating fibers from a conveying airstream as defined in claim 1, wherein said filter member is constructed to possess a substantially hoselike configuration.
Claim 7
Dependent Claim
33 words
Apparatus for separating fibers from a conveying airstream as defined in claim 5, wherein said substantially hoselike filter member in its rest position is folded twice in opposite directions and is telescopically extensible.
Claim 8
Dependent Claim
37 words
An apparatus for separating fibers from a conveying airstream as defined in claim 6, further includinG ring means between which said filter member is guided, said spring means for returning said filter member into its rest position.
Claim 9
Dependent Claim
30 words
Apparatus for separating fibers from a conveying airstream as defined in claim 1, wherein said filter member is of substantially cylindrical configuration and is extensible conjointly with said plunger means.
Claim 10
Dependent Claim
19 words
Apparatus as defined in claim 1, wherein said filter member defines a structure which itself is variable in length.
Claim 11
Dependent Claim
15 words
The apparatus as defined in claim 1, wherein said filter member surrounds said plunger means.
Claim 12
Dependent Claim
48 words
Apparatus for separating fibers from a conveying airstream as defined in claim 10, further including means defining an annular compartment surrounding said filter member, means providing a channel for the cleaned air, said annular compartment opening into said channel, and an air conveying device arranged in said channel.
Claim 13
Dependent Claim
53 words
An apparatus for separating fibers from a conveying airstream as defined in claim 11, further including a conical discharge connecting piece arranged beneath said filter member, means provided for said conical discharge piece which prevents sliding back of the compressed material in a direction opposite to the direction of ejection of such material.
Claim 14
Dependent Claim
27 words
An apparatus for separating fibers from a conveying airstream as defined in claim 1, wherein said stationary inlet means and said plunger opening are substantially coaxially aligned.
Claim 15
Dependent Claim
82 words
An apparatus for separating fibers from a conveying airstream as defined in claim 1, wherein said air permeable filter member is extensible into a position where a portion thereof is disposed externally of said housing means at said outfeed side thereof, means for connecting said filter member with said plunger means, so that during axial displacement of said plunger means said filter member portion is disposed externally of said housing means to permit lateral escape of conveying air through said filter member.
Claim 16
Independent Claim
131 words
An apparatus for separating fibers from a conveying airstream, comprising housing means having an infeed side and an outfeed side for the fibers and conveying airstream, a stationary inlet means provided for said housing means for delivering the conveying airstream charged with fibers into said housing means at said infeed side, a container disposed at the region of said outfeed side of said housing means for collecting the ejected fibers separated from said conveying airstream, an axially displaceable plunger means provided with an opening positioned in flow communication with said inlet means for the conveying airstream charged with fibers, drive means for said axially displaceable plunger means, and an air permeable filter member for operatively connecting said plunger means with said stationary inlet means, said filter member being a flexible element.
Claim 17
Independent Claim
131 words
An apparatus for separating fibers from a conveying airstream, comprising housing means having an infeed side and an outfeed side for the fibers and conveying airstream, a stationary inlet means provided for said housing means for delivering the conveying airstream charged with fibers into said housing means at said infeed side, a container disposed at the region of said outfeed side of said housing means for collecting the ejected fibers separated from said conveying airstream, an axially displaceable plunger means provided with an opening positioned in flow communication with said inlet means for the conveying airstream charged with fibers, drive means for said axially displaceable plunger means, and an air permeable filter member for operatively connecting said plunger means with said stationary inlet means, said filter member being a flexible element.
Claim 18
Independent Claim
292 words
An apparatus for separating fibers from a conveying airstream, comprising housing means having an infeed side and an outfeed side for the fibers and conveying airstream, a stationary inlet means provided for said housing means for delivering the conveying airstream charged with fibers into said housing means at said infeed side, a container disposed at the region of said outfeed side of said housing means for collecting the ejected fibers separated from said conveying airstream, an axially displaceable plunger means provided with an opening disposed in flow communication with said inlet means for the conveying airstream charged with fibers, said plunger means having opposed plunger faces to opposite sides of said plunger opening, one of said plunger faces confronting said inlet means and the other of said plunger faces facing away from said inlet means, drive means for said axially displaceable plunger means to move said plunger means from an inoperative position in a direction towards said outfeed side of said housing means, the fibers and conveying airstream moving from said inlet means towards said one plunger face and at that location of said one plunger face at Least the fibers move through said plunger opening to the side of said other plunger face in a position to be acted upon and compacted by said plunger means when said plunger means is moving in said direction towards said outfeed side of said housing means, and an air permeable filter member cooperating with and disposed at a location with respect to said plunger means such as to permit escape of at least part of said conveying air through said filter member externally thereof prior to possible passage through said plunger opening when said plunger means is moving while out of said inoperative position.
Claim 19
Independent Claim
292 words
An apparatus for separating fibers from a conveying airstream, comprising housing means having an infeed side and an outfeed side for the fibers and conveying airstream, a stationary inlet means provided for said housing means for delivering the conveying airstream charged with fibers into said housing means at said infeed side, a container disposed at the region of said outfeed side of said housing means for collecting the ejected fibers separated from said conveying airstream, an axially displaceable plunger means provided with an opening disposed in flow communication with said inlet means for the conveying airstream charged with fibers, said plunger means having opposed plunger faces to opposite sides of said plunger opening, one of said plunger faces confronting said inlet means and the other of said plunger faces facing away from said inlet means, drive means for said axially displaceable plunger means to move said plunger means from an inoperative position in a direction towards said outfeed side of said housing means, the fibers and conveying airstream moving from said inlet means towards said one plunger face and at that location of said one plunger face at Least the fibers move through said plunger opening to the side of said other plunger face in a position to be acted upon and compacted by said plunger means when said plunger means is moving in said direction towards said outfeed side of said housing means, and an air permeable filter member cooperating with and disposed at a location with respect to said plunger means such as to permit escape of at least part of said conveying air through said filter member externally thereof prior to possible passage through said plunger opening when said plunger means is moving while out of said inoperative position.
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) | 1974-08-30 | 1975-03-01 | 1975-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-30 | 1979-03-01 | 1979-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-30 | 1983-03-01 | 1983-08-31 | $7700.00 | Window Closed / Lapsed |