US3633808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nozzle for jet looms
Assignee: Elitex Zavody Textilniho
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Filing: 1970-06-02
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Granted: 1972-01-11
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Expires: 1990-06-02
Abstract
Abstract A nozzle provided with a body having a bore, a piston mounted in the body bore, the piston having a bore, and a yarn carrier mounted in the piston face. The carrier has a smaller dimension than the piston bore to define an annular orifice. The piston and body are formed with cooperating engaging surfaces forming a valve seat. The piston is provided with channels connecting the surface to the piston bore. Means are provided for forcing a fluid between the engaging surfaces, opening the valve seat and allowing the fluid to flow out of the annular orifice.
Inventors
- 👤 Vladimir Svaty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:58
CPC Classifications
D; D03; D03D; D03D47/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
139 words
A nozzle for a fluid jet weaving loom in which pressurized fluid is employed to eject a yarn comprising a body having an axially extending bore, a piston movably mounted in said body bore, said piston having an axially extending bore, a carrier mounted in said piston bore, said carrier having an axial bore for supporting a yarn and an exterior surface spaced from the interior surface of said piston bore to form an annular orifice therebetween, said body and said piston having cooperating engaging surfaces adapted to form a seal therebetween, means for normally urging said body and piston surfaces in sealing engagement, channel means extending between the engaging surface of said piston and the annular orifice, and means for forcing fluid under pressure between engaging surfaces to cause fluid to flow through said channels into said orifice.
Claim 2
Dependent Claim
139 words
A nozzle for a fluid jet weaving loom in which pressurized fluid is employed to eject a yarn comprising a body having an axially extending bore, a piston movably mounted in said body bore, said piston having an axially extending bore, a carrier mounted in said piston bore, said carrier having an axial bore for supporting a yarn and an exterior surface spaced from the interior surface of said piston bore to form an annular orifice therebetween, said body and said piston having cooperating engaging surfaces adapted to form a seal therebetween, means for normally urging said body and piston surfaces in sealing engagement, channel means extending between the engaging surface of said piston and the annular orifice, and means for forcing fluid under pressure between engaging surfaces to cause fluid to flow through said channels into said orifice.
Claim 3
Dependent Claim
29 words
The nozzle according to claim 1, wherein the engaging surface of the piston is formed with an annular groove for collecting fluid therein, said groove communicating with said channels.
Claim 4
Dependent Claim
76 words
The nozzle according to claim 1, wherein the bore of said piston is provided with a radially extended hollow portion midway its length, and is conically shaped, the carrier being correspondingly conically shaped having an outer dimension conforming to that of the piston bore axially behind the hollow portion and smaller than that of the piston bore axially ahead of said hollow portion, said smaller portion defining one wall of an axially tapering conical annulus orifice.
Claim 5
Dependent Claim
57 words
The nozzle according to claim 1, wherein the exterior of the piston is provided with at least two stepped shoulders, one of which cooperates with an oppositely arranged internal rim in said body to form the engaging surfaces and the other constitutes in cooperation with an opposite surface of said body an annular cavity surrounding said surfaces.
Claim 6
Dependent Claim
39 words
The nozzle according to claim 4, including a source of pressurized fluid, a conduit connecting said source to the annular cavity, one way valve means located in said Conduit, and means for cyclically feeding said fluid to said cavity.
Claim 7
Dependent Claim
38 words
The nozzle according to claim 4, including a spacer ring located within said cavity bridging the other of the opposed surfaces, said ring having an axial length of predetermined distance to regulate the engagement of the engaging surfaces.
Claim 8
Dependent Claim
24 words
The nozzle according to claim 1, wherein said means for urging said piston into engagement with said body comprises an annular resilient compression ring.
Claim 9
Dependent Claim
11 words
The nozzle according to claim 7, wherein said ring is rubber.
References Cited (Backward Citations)
US2812850A
Cited
US3485428A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |