US3824774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for the fabrication of condenser yarns
Assignee: Nissan Motor Co Ltd
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Filing: 1972-10-24
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Granted: 1974-07-23
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Expires: 1992-10-24
Abstract
Abstract A method and an apparatus for concurrently fabricating a number of condenser yarns having two or more wadder filaments twisted upon each other and twiner elements which are twined between and around the wadder filaments. The wadder filaments fed in a number of groups are shed and receive a twiner filament in shed in manners similar to the feeding of warps and wefts in a usual loom. Upon beating of the twiner filament onto the wadder filaments, the twiner filament is cut to a number of twiner elements which are allocated respectively to the individual groups of the wadder filaments. The wadder filaments thus carrying the twiner elements are then twisted upon each other so that the twiner elements are twined between and around the wadder filaments thus spun.
Inventors
- 👤 Y Kobayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:15
CPC Classifications
D; D03; D03D; D03D41/00; D02; D02G; D02G3/00; D02G3/22; D02G3/42
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
142 words
A method of concurrenTly fabricating a plurality of condenser yarns, comprising the steps of continuously feeding a plurality of sets of wadder filaments in rows, shedding said wadder filaments, feeding at least one twiner filament in cycles into the shed of said wadder filaments, beating up said twiner filament onto said wadder filament, cutting said twiner filament in said cycles to a plurality of twiner elements, each of the twiner elements being interlaced between the wadder filaments of each of said sets, and twisting the wadder filaments of each set around each other by a plurality of twisting means which are respectively driven by a plurality of driving means driven by drive means which is common to and engages the plurality of driving means for causing the twiner elements there on to be twined between and around the wadder filaments thus spun.
Claim 2
Independent Claim
142 words
A method of concurrenTly fabricating a plurality of condenser yarns, comprising the steps of continuously feeding a plurality of sets of wadder filaments in rows, shedding said wadder filaments, feeding at least one twiner filament in cycles into the shed of said wadder filaments, beating up said twiner filament onto said wadder filament, cutting said twiner filament in said cycles to a plurality of twiner elements, each of the twiner elements being interlaced between the wadder filaments of each of said sets, and twisting the wadder filaments of each set around each other by a plurality of twisting means which are respectively driven by a plurality of driving means driven by drive means which is common to and engages the plurality of driving means for causing the twiner elements there on to be twined between and around the wadder filaments thus spun.
Claim 3
Dependent Claim
36 words
A method as claimed in claim 1, in which said twiner filament is fed into said shed of the wadder filaments by entraining the twiner filament on a jet stream of fluid spurting into said shed.
Claim 4
Independent Claim
176 words
An apparatus for concurrently fabricating a plurality of condenser yarns comprising, in combination, first feeding means for continuously feeding a plurality of sets of wadder filaments in rows, a heald for shedding said wadder filaments, a second feeding means for cyclically feeding at least one twiner filament into the shed of said wadder filaments, a reed which is operative to beat up said twiner filament onto said wadder filaments, a plurality of cutting means for cutting in said cycles said twiner filament to a plurality of twiner elements for causing each of the twiner elements to be interlaced between the wadder filaments of each of said sets, and a plurality of twisting means for respectively twisting the corresponding sets of wadder filaments around each other for causing the twiner elements to be twined between and around the corresponding sets of wadder filaments, a plurality of driving means for respectively driving said plurality of twisting means, and drive means for driving said plurality of driving means which is common to and engages said plurality of driving means.
Claim 5
Independent Claim
176 words
An apparatus for concurrently fabricating a plurality of condenser yarns comprising, in combination, first feeding means for continuously feeding a plurality of sets of wadder filaments in rows, a heald for shedding said wadder filaments, a second feeding means for cyclically feeding at least one twiner filament into the shed of said wadder filaments, a reed which is operative to beat up said twiner filament onto said wadder filaments, a plurality of cutting means for cutting in said cycles said twiner filament to a plurality of twiner elements for causing each of the twiner elements to be interlaced between the wadder filaments of each of said sets, and a plurality of twisting means for respectively twisting the corresponding sets of wadder filaments around each other for causing the twiner elements to be twined between and around the corresponding sets of wadder filaments, a plurality of driving means for respectively driving said plurality of twisting means, and drive means for driving said plurality of driving means which is common to and engages said plurality of driving means.
Claim 6
Dependent Claim
168 words
An apparatus as claimed in claim 3, in which said twisting means comprising a plurality of rotary spinning members which are positioned to respectively receive said sets of wadder filaments with said twiner elements carried thereon, each of said rotary spinning members having an axial bore and apertures substantially in alignment with a path of the allocated set of wadder filaments and being rotatable about its axis which is substantially in alignment with said path, each of said sets of wadder filaments with said twiner elements carried thereon being admitted into said axial bore through said apertures, said driving means comprising a plurality of gearing units which are respectively in driving engagement with said spinning members, and said drive means carrying in place part of said gearing units for driving through said gearing units said spinning members for rotation about their respective axes whereby the individual sets of wadder filaments carrying said twiner elements are spun as they pass through the axial bores in the allocated spinning members.
Claim 7
Dependent Claim
66 words
An apparatus as claimed in claim 4, in which each of said spinning member comprises a tubular body portion which is opened at its outlet end and a flattened portion into which said tubular body portion merges at its inlet portion, at least one of said apertures being formed in said tubular body portion and the rest of said apertures being formed in said flattened portion.
Claim 8
Dependent Claim
93 words
An apparatus as claimed in claim 4, in which each of said gearing units comprises a driven gear mounted on said spinning member for rotation therewith, a driving gear which is in constant mesh with said driven gear and rotatable with a shaft extending in a direction substantially parallel to the direction of advancement of said wadder filaments, a driven bevel gear which is carried on said shaft for rotation thereWith, and a driving bevel gear which is in constant mesh with said driven bevel gear and constantly driven by said driving means.
Claim 9
Dependent Claim
23 words
An apparatus as claimed in claim 6, in which said driving means comprises a drive shaft carrying the plurality of driving bevel gears.
Claim 10
Dependent Claim
51 words
An apparatus as claimed in claim 3, in which said second feeding means comprises at least one fluid jet nozzle communicating with a source of a jet fluid for projecting said twiner filament into said shed by entraining the twiner filament on a jet stream of fluid spurting from said nozzle.
Claim 11
Dependent Claim
23 words
An apparatus as claimed in claim 3, further comprising a cutter carrier which is common to and carries said plurality of cutting means.
References Cited (Backward Citations)
US868688A
Cited
US1392939A
Cited
US1970365A
Cited
US2433279A
Cited
US2535376A
Cited
US2596246A
Cited
US3297057A
Cited
US3670487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-22 | 1978-01-21 | 1978-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-22 | 1982-01-21 | 1982-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-22 | 1986-01-21 | 1986-07-23 | $7700.00 | Window Closed / Lapsed |