US4255947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Warp knitting machine with weft insertion apparatus
Assignee: Karl Mayer Textilmaschinenfabrik GmbH
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Filing: 1978-11-07
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Granted: 1981-03-17
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Expires: 1998-11-07
Abstract
Abstract Stationary spools located at one end of a warp knitting machine are coupled to thread providing means which in turn is coupled to a thread transfer means for carrying the weft threads across the full bed of the warp knitting machine. The weft thread providing means and the transfer means in addition to means for removing the weft threads from the transfer means are disposed within the volume delineated by the needle bed, push rod and guide bar drive levers of the knitting machine and are disposed a position between the forwardly and rearwardly disposed guide bars thereof.
Inventors
- 👤 Karl Kohl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:00
CPC Classifications
D; D04; D04B; D04B23/00; D04B23/12
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
142 words
A weft inserting apparatus for use with a warp knitting machine having a needle bed, a plurality of guide bar drive levers with guide bars affixed thereon, and push rods operatively connected thereto, comprises in combination: (a) thread provider means for supplying a plurality of weft threads; (b) thread transfer means for carrying each of said weft threads across the width of said knitting machine proximate said needle bed, said thread transfer means being disposed substantially within the space bounded by said needle bed, said push rods, said guide bar drive levers, and between forwardly and rearwardly disposed guide bars; and (c) means for removing said weft threads from said transfer means and positioning them proximate said needle bar at the proper time of the knitting cycle, at least one said removing means being disposed proximate each end of said needle bed.
Claim 2
Dependent Claim
142 words
A weft inserting apparatus for use with a warp knitting machine having a needle bed, a plurality of guide bar drive levers with guide bars affixed thereon, and push rods operatively connected thereto, comprises in combination: (a) thread provider means for supplying a plurality of weft threads; (b) thread transfer means for carrying each of said weft threads across the width of said knitting machine proximate said needle bed, said thread transfer means being disposed substantially within the space bounded by said needle bed, said push rods, said guide bar drive levers, and between forwardly and rearwardly disposed guide bars; and (c) means for removing said weft threads from said transfer means and positioning them proximate said needle bar at the proper time of the knitting cycle, at least one said removing means being disposed proximate each end of said needle bed.
Claim 3
Dependent Claim
84 words
A weft inserting apparatus according to claim 1 wherein said thread transfer means includes: (a) a first wheel disposed proximate said thread provider means, said first wheel axis being generally parallel to the plane formed by said needles; (b) a second wheel disposed proximate said needle bed, said second wheel axis being generally perpendicular to the plane formed by said needles; and (c) continuous chain means circumscribing said first and second wheels, said chain means including a plurality of thread clamping means spaced therealong.
Claim 4
Dependent Claim
60 words
A weft inserting apparatus according to claim 1 wherein at least two of the most rearwardly disposed guide bars have affixed thereto fender means for avoiding said weft threads when they are removed from said thread transfer means said fender means being disposed on the surface of said guide bar facing the openings of the needles on said needle bed.
Claim 5
Dependent Claim
19 words
A weft inserting apparatus according to claim 1 further including a separate independent support beam for said rearward guidebar.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-16 | 1984-09-15 | 1985-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-16 | 1988-09-15 | 1989-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-16 | 1992-09-15 | 1993-03-17 | $7700.00 | Window Closed / Lapsed |