US3688957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Entrainment means
Assignee: Imperial Chemical Industries Ltd
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Filing: 1970-10-28
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Granted: 1972-09-05
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Expires: 1990-10-28
Abstract
Abstract A process for entraining a filament or yarn passing across the induction end of a suction gun comprising mechanically introducing a device into the induction end of the gun so that the device is sucked into the gun, catching the filament or yarn with the device so that the latter drags the filament or yarn into the gun, and passing the device and the filament or yarn through and out of the gun to a filament or yarn collecting location.
Inventors
- 👤 Brian Beddoe
- 👤 David Charles Hackling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:23
CPC Classifications
B; B65; B65H; B65H54/00; B65H54/86; B65H54/88; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
80 words
A process for entraining a filament or yarn passing across the induction end of a suction gun comprising mechanically introducing a device into the induction end of the gun so that the device is sucked into the gun, catching the filament or yarn with the device so that the latter drags the filament or yarn into the gun, and passing the device and the filament or yarn through and out of the gun to a filament or yarn collecting location.
Claim 2
Dependent Claim
80 words
A process for entraining a filament or yarn passing across the induction end of a suction gun comprising mechanically introducing a device into the induction end of the gun so that the device is sucked into the gun, catching the filament or yarn with the device so that the latter drags the filament or yarn into the gun, and passing the device and the filament or yarn through and out of the gun to a filament or yarn collecting location.
Claim 3
Dependent Claim
32 words
A process according to claim 1, in which the device is of a diameter such that at least one yarn-carrying air passage in the suction gun is substantially closed by the device.
Claim 4
Dependent Claim
18 words
A process according to claim 1 in which the filament or yarn is cut downstream of the device.
Claim 5
Dependent Claim
66 words
In a process for entraining a filament or yarn caused to pass across the induction end of a suction gun the improvement being comprised in that the filament or yarn is mechanically introduced into said induction end of said suction gun by a pellet such that the filament or yarn and the device are carried through the suction gun to a filament or yarn collecting location.
Claim 6
Dependent Claim
66 words
In a process for entraining a filament or yarn caused to pass across the induction end of a suction gun the improvement being comprised in that the filament or yarn is mechanically introduced into said induction end of said suction gun by a pellet such that the filament or yarn and the device are carried through the suction gun to a filament or yarn collecting location.
Claim 7
Dependent Claim
14 words
A process according to claim 4 in which the pellet is a short pellet.
Claim 8
Dependent Claim
24 words
A process according to claim 4, in which the pellet is an elongated pellet comprising two end pieces connected together by a waisted shank.
Claim 9
Dependent Claim
77 words
In a process for entraining a filament or yarn caused to pass across the induction end of a suction gun the improvement being comprised in that the filament or yarn is mechanically introduced into said induction end of said suction gun by firing the device from a housing into the induction end of the gun such that the filament or yarn and the device are carried through the suction gun to a filament or yarn collecting location.
Claim 10
Dependent Claim
77 words
In a process for entraining a filament or yarn caused to pass across the induction end of a suction gun the improvement being comprised in that the filament or yarn is mechanically introduced into said induction end of said suction gun by firing the device from a housing into the induction end of the gun such that the filament or yarn and the device are carried through the suction gun to a filament or yarn collecting location.
Claim 11
Dependent Claim
30 words
A process according to claim 7, in which the firing of the device is designed to be triggered by insertion of the end of the suction gun in the housing.
References Cited (Backward Citations)
US3452910A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-05 | 1976-03-06 | 1976-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-05 | 1980-03-06 | 1980-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-05 | 1984-03-06 | 1984-09-05 | $7700.00 | Window Closed / Lapsed |