Patent US3673849A successfully refreshed from Google Patents.
Patent US3133560A successfully refreshed from Google Patents.
US3133560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming selvages in wire screen cloth
Assignee: United States Steel Corp
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Filing: 1961-10-12
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Granted: 1964-05-19
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Expires: 1981-10-12
Abstract
No abstract record available.
Inventors
- 👤 Tracy E Arnold
- 👤 Herbert P Worrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 04:30
CPC Classifications
D; D03; D03D; D03D5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
IN A LOOM, FRONT AND REAR VERTICALLY RECIPROCATING HEDDLE FRAMES HAVING SHED-FORMING HEDDLE WIRES SPACED THEREALONG, A SHAFT EXTENDING ALONG THE TOP FRONT SIDE OF SAID FRONT FRAME HAVING ITS ENDS MOUNTED THEREON FOR AXIAL SLIDING MOVEMENT, A WARP-TWISTING NEEDLE HAVING AN EYE IN THE LOWER END THEREOF RIGIDLY MOUNTED ON SAID SHAFT AND PROJECTING DOWNWARDLY THEREFROM AT AN ANGLE DIRECTED TOWARD THE VERTICAL PLANE CONTAINING SAID HEDDLE WIRES WHEREBY THE EYE OF SAID NEEDLE IS POSITIONED IMMEDIATELY ADJACENT SAID HEDDLE WIRES, A WARP NEEDLE RIGIDLY MOUNTED ON THE BOTTOM OF SAID REAR HEDDLE FRAME AND PROJECTING UPWARDLY THEREFROM IN A SUBSTANTIALLY VERTICAL PLANE ADJACENT SAID WARP-TWISTING NEEDLE, AND MEANS EFFECTING AXIAL RECIPROCATION OF SAID SHAFT WHEREBY SAID WARPTWISTING NEEDLE IS ALTERNATELY SHIFTED FROM ONE SIDE TO
Claim 2
Dependent Claim
127 words
IN A LOOM, FRONT AND REAR VERTICALLY RECIPROCATING HEDDLE FRAMES HAVING SHED-FORMING HEDDLE WIRES SPACED THEREALONG, A SHAFT EXTENDING ALONG THE TOP FRONT SIDE OF SAID FRONT FRAME HAVING ITS ENDS MOUNTED THEREON FOR AXIAL SLIDING MOVEMENT, A WARP-TWISTING NEEDLE HAVING AN EYE IN THE LOWER END THEREOF RIGIDLY MOUNTED ON SAID SHAFT AND PROJECTING DOWNWARDLY THEREFROM AT AN ANGLE DIRECTED TOWARD THE VERTICAL PLANE CONTAINING SAID HEDDLE WIRES WHEREBY THE EYE OF SAID NEEDLE IS POSITIONED IMMEDIATELY ADJACENT SAID HEDDLE WIRES, A WARP NEEDLE RIGIDLY MOUNTED ON THE BOTTOM OF SAID REAR HEDDLE FRAME AND PROJECTING UPWARDLY THEREFROM IN A SUBSTANTIALLY VERTICAL PLANE ADJACENT SAID WARP-TWISTING NEEDLE, AND MEANS EFFECTING AXIAL RECIPROCATION OF SAID SHAFT WHEREBY SAID WARPTWISTING NEEDLE IS ALTERNATELY SHIFTED FROM ONE SIDE TO
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) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |