Patent US4047403A successfully refreshed from Google Patents.
US4047403A
Expired / Lapsed
US
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Apparatus for the continuous wet treatment of textiles in rope form
Assignee: Hoechst AG
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Filing: 1976-08-20
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Granted: 1977-09-13
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Expires: 1996-08-20
Abstract
Abstract Sealing device for the continuous inlet and outlet of textile material in the form of endless ropes into and from a pressure-tight container under high temperature conditions, consisting of a number of locks of graduated pressure, which are positioned one behind the other in the transport direction of the rope, and characterized in that each pressure lock is a sealing element made of elastic material in the form of the common shell of two frusta of straight circular cones of different height, which abut on each other axially with their top faces, and which face, in the direction toward the open base of the lower frustum the room under higher pressure, and whose internal surface is lined with a smooth layer and the inner diameter of the sealing element approximately corresponds to the diameter of the cylindrically shaped textile rope, so as to be tightly pressed from all sides onto the textile material under the action of the higher internal pressure exerted in the pressure container on the outer shell of the frusta.
Inventors
- 👤 Hans-Ulrich von der Eltz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:59
CPC Classifications
D; D06; D06B; D06B23/00; D06B23/14; D06B23/18
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
193 words
A sealing device for the inlet and outlet of a continuous textile material in a dry or wet state, and in the form of an endless rope, into and from a pressure tight container that is under high pressure conditions, comprising at least one pressure lock including a sealing element formed of an elastic material, said sealing element having a shell configuration comprising two frustro-conical sections of different height having complementary small base portions located adjacent each other to define a narrow neck in the sealing element and larger, different diameter base portions remote from said neck on opposite ends of the sealing element with one of said larger diameter base portions freely protruding into the pressure container, said sealing element having an internal surface lined with a smooth layer, and the inner diameter of said neck of the sealing element being selected to be substantially equal to the diameter of the rope whereby the shell of the sealing element is tightly pressed from all sides by the pressure in said container to engage the inner surface of the sealing element at said neck with the rope to form a pressure seal therebetween.
Claim 2
Dependent Claim
193 words
A sealing device for the inlet and outlet of a continuous textile material in a dry or wet state, and in the form of an endless rope, into and from a pressure tight container that is under high pressure conditions, comprising at least one pressure lock including a sealing element formed of an elastic material, said sealing element having a shell configuration comprising two frustro-conical sections of different height having complementary small base portions located adjacent each other to define a narrow neck in the sealing element and larger, different diameter base portions remote from said neck on opposite ends of the sealing element with one of said larger diameter base portions freely protruding into the pressure container, said sealing element having an internal surface lined with a smooth layer, and the inner diameter of said neck of the sealing element being selected to be substantially equal to the diameter of the rope whereby the shell of the sealing element is tightly pressed from all sides by the pressure in said container to engage the inner surface of the sealing element at said neck with the rope to form a pressure seal therebetween.
Claim 3
Dependent Claim
17 words
A sealing device as claimed in claim 1, wherein the sealing element consists of a one-piece shell.
Claim 4
Dependent Claim
54 words
A sealing device as claimed in claim 1, wherein the sealing element comprises a plurality of axially parallel, overlapping lamellae having opposite end portions, and a pair of reinforcing rings respectively secured to the opposite end portions of said lamellae and defining the large bases of the two frustro-conical sections of the sealing element.
Claim 5
Dependent Claim
56 words
A sealing device as claimed in claim 3, wherein the neck in said sealing element is formed by twisting said rings with respect to one another, whereby, by varying the amount of relative twist therebetween the inner diameter of the neck of the sealing element may be varied to conform to the diameter of the rope.
Claim 6
Dependent Claim
28 words
A sealing device as defined in claim 1 including a plurality of successively aligned pressure locks of graduated pressure each of which includes one of said sealing elements.
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) | 1980-09-12 | 1981-03-14 | 1981-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-12 | 1985-03-14 | 1985-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-12 | 1989-03-14 | 1989-09-13 | $7700.00 | Window Closed / Lapsed |