Patent US3874420A successfully refreshed from Google Patents.
US3874420A
Expired / Lapsed
US
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Weft inserting carrier
Assignee: Draper Corp
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Filing: 1973-10-23
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Granted: 1975-04-01
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Expires: 1993-10-23
Abstract
Abstract A weft inserting carrier for shuttleless looms of the type adapted to insert single picks of weft into separate sheds formed by warp threads. The carrier being provided with a weft receiving pocket into and from which any one of a plurality of weft threads from separate sources may be selectively guided having a guide element associated with the pocket that assures entry of a selected weft yarn therein and broadens the weft pick up range of the carrier.
Inventors
- 👤 John A Cugini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:11
CPC Classifications
D; D03; D03D; D03D47/00; D03D47/12; D03D47/20; D03D47/23; D03D47/233
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
164 words
A weft inserting carrier for shuttleless looms for inserting single picks of weft into separate sheds of warp threads selectively drawn from any one of a plurality of independent sources of weft supply, comprising: a. a base portion having a rear sidewall protruding therefrom with a flat top surface connected to and extending forwardly from said rear sidewall; b. guide means in said rear sidewall for receiving and guiding a selected weft thread as it is inserted into a warp shed; c. a combined weft trapping and guide member extending forwardly and outwardly from said top surface, said member including 1. a downwardly directed hooked portion located adjacent the upper end of said guide means and spaced laterally outwardly therefrom; and also including 2. a portion that is flared upwardly and rearwardly from said hooked portion to define a camming surface that will move a weft yarn that misses the entrance into the guide means, drawn past said hooked portion, into said guide means.
Claim 2
Dependent Claim
164 words
A weft inserting carrier for shuttleless looms for inserting single picks of weft into separate sheds of warp threads selectively drawn from any one of a plurality of independent sources of weft supply, comprising: a. a base portion having a rear sidewall protruding therefrom with a flat top surface connected to and extending forwardly from said rear sidewall; b. guide means in said rear sidewall for receiving and guiding a selected weft thread as it is inserted into a warp shed; c. a combined weft trapping and guide member extending forwardly and outwardly from said top surface, said member including 1. a downwardly directed hooked portion located adjacent the upper end of said guide means and spaced laterally outwardly therefrom; and also including 2. a portion that is flared upwardly and rearwardly from said hooked portion to define a camming surface that will move a weft yarn that misses the entrance into the guide means, drawn past said hooked portion, into said guide means.
Claim 3
Dependent Claim
40 words
a portion that is flared upwardly and rearwardly from said hooked portion to define a camming surface that will move a weft yarn that misses the entrance into the guide means, drawn past said hooked portion, into said guide means.
Claim 4
Dependent Claim
40 words
a portion that is flared upwardly and rearwardly from said hooked portion to define a camming surface that will move a weft yarn that misses the entrance into the guide means, drawn past said hooked portion, into said guide means.
References Cited (Backward Citations)
US3014503A
Cited
US3638686A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |