Patent US3604472A successfully refreshed from Google Patents.
US3604472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filling storage device for looms
Assignee: Draper Corp
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Filing: 1969-12-22
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Granted: 1971-09-14
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Expires: 1989-12-22
Abstract
Abstract A filling storage device for looms of the type adapted to insert lengths of filling into sheds formed by warp threads, said device having a rotating drum member on which a premeasured length of filling is to be wound and held in contact therewith by a vacuum prior to its insertion into a warp shed.
Inventors
- 👤 John H Nydam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:05
CPC Classifications
D; D03; D03D; D03D47/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
100 words
For a loop having a measuring device for drawing predetermined lengths of filling yarn from a fixed outside source of supply and inserting said lengths of filling into sheds of warp threads, a filling storage device for temporarily and sequentially storing said lengths of filling prior to their insertion into said sheds which comprises: a. a continuously rotating drum member having an outer periphery about which said lengths of filling are adapted to be wrapped, and b. a fluid pressure means for holding the filling in contact with the outer periphery of said drum member as it is wrapped thereon.
Claim 2
Dependent Claim
100 words
For a loop having a measuring device for drawing predetermined lengths of filling yarn from a fixed outside source of supply and inserting said lengths of filling into sheds of warp threads, a filling storage device for temporarily and sequentially storing said lengths of filling prior to their insertion into said sheds which comprises: a. a continuously rotating drum member having an outer periphery about which said lengths of filling are adapted to be wrapped, and b. a fluid pressure means for holding the filling in contact with the outer periphery of said drum member as it is wrapped thereon.
Claim 3
Dependent Claim
43 words
The apparatus according to claim 1 wherein said drum has a tapered outer periphery extending about the circumferential extent thereof and converging in the direction of said sheds to facilitate the withdrawal of the filling therefrom as it is inserted into said sheds.
Claim 4
Dependent Claim
28 words
The apparatus according to claim 1 wherein said fluid pressure means includes means communicating with said drum member for reducing the air pressure therein to an ambient level.
Claim 5
Dependent Claim
50 words
The apparatus according to claim 3 wherein said drum member, through the outer periphery thereof, has at least one air intake port communicating between the outer and inner surfaces of said drum member, thereby causing the filling yarn to maintain contact with said outer periphery as it is wound thereon.
Claim 6
Dependent Claim
41 words
The apparatus according to claim 4 wherein said air intake port includes a screen element covering the area thereof to prevent said filling thread from being carried into said drum member by the air being drawn therein by said vacuum means.
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) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |