Patent US3899008A successfully refreshed from Google Patents.
US3899008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weft cutter control apparatus
Assignee: Draper Corp
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Filing: 1974-07-10
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Granted: 1975-08-12
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Expires: 1994-07-10
Abstract
Abstract An improved weft cutter support for shuttleless looms, which in timed relation to the insertion and beat-up of each pick of weft is effective in simultaneously moving the cutter in a lateral direction to position it in close proximity with the fabric edge while lowering the cutter through rotary movement of the support to position it for reception of the weft and the performance of its intended function.
Inventors
- 👤 Edward S Budzyna
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:47
CPC Classifications
D; D03; D03D; D03D47/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
145 words
In a shuttleless loom in which weft yarn is inserted into the shed formed by warp yarns from a stationary source located outside of the shed and in which after insertion the weft is beat into the fabric fell by the loom reed and then trimmed by a cutter, the combination of improved cutter support means comprising: a. movable mounting means defining a longitudinal and rotary movable spring biased rod member for supporting the cutter for movement between an inoperative position outside of the path of travel of the loom reed and an operative position for cutting the weft yarn; and b. drive means operably connected to said spring biased rod member and to a source of motive power for moving said spring biased rod member through longitudinal and rotary movements to affect positioning the cutter in said inoperative and in said operative positions alternately.
Claim 2
Dependent Claim
145 words
In a shuttleless loom in which weft yarn is inserted into the shed formed by warp yarns from a stationary source located outside of the shed and in which after insertion the weft is beat into the fabric fell by the loom reed and then trimmed by a cutter, the combination of improved cutter support means comprising: a. movable mounting means defining a longitudinal and rotary movable spring biased rod member for supporting the cutter for movement between an inoperative position outside of the path of travel of the loom reed and an operative position for cutting the weft yarn; and b. drive means operably connected to said spring biased rod member and to a source of motive power for moving said spring biased rod member through longitudinal and rotary movements to affect positioning the cutter in said inoperative and in said operative positions alternately.
Claim 3
Dependent Claim
38 words
The improved cutter support means according to claim 1 wherein said drive means includes a cam-controlled bellcrank lever operatively connected to said spring biased rod member for affecting movement of the cutter between its operative and inoperative positions.
Claim 4
Dependent Claim
42 words
The improved cutter support means according to claim 1 wherein said drive means includes a cam-controlled lever member fixed on said spring biased rod members for affecting rotary movement of the latter and actuation of the cutter when in its operative 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) | 1978-08-11 | 1979-02-10 | 1979-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-11 | 1983-02-10 | 1983-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-11 | 1987-02-10 | 1987-08-12 | $7700.00 | Window Closed / Lapsed |