Patent US4603799A successfully refreshed from Google Patents.
US4603799A
Expired / Lapsed
US
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Forward feed assembly for continuous forward feed of open tubular fabric under controlled tension
Assignee: Individual
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Filing: 1984-12-21
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Granted: 1986-08-05
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Expires: 2004-12-21
Abstract
Abstract A forward feed assembly for continuous forward feed of open tubular fabric to a subsequent processing station has an elongated guide mandrel over which the open tubular fabric passes, a first drive on one side of the guide mandrel operable to drivingly engage the fabric, and a second drive on an opposite side of the guide mandrel to drivingly engage the fabric at the same fabric-engaging speed as the first drive.
Inventors
- 👤 Jean E. Schaerer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:50
CPC Classifications
B; B65; B65H; B65H51/00; B65H51/02; B65H51/04; B65H51/08; B65H51/10; B65H51/105; B65H20/00; B65H20/02; D; D06; D06B; D06B23/00; D06B23/04; D06C; D06C5/00; D06H; D06H7/00; D06H7/04; D06H7/08
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
120 words
A forward feed assembly for continuous forward feed of open tubular fabric to a subsequent processing station comprising: an elongated curved guide mandrel over which the open tubular fabric passes, pulley means on one side of the curved guide mandrel operable to drivingly engage the fabric, said guide mandrel curving through at least about 90° around a portion of the circumference of the pulley means, and endless belt drive means on an opposite side of the curved guide mandrel to drivingly engage the fabric at the same fabric engaging speed as the pulley means as the fabric passes over the curved guide mandrel around the pulley means and to retain the curved guide mandrel in position around the pulley means.
Claim 2
Dependent Claim
120 words
A forward feed assembly for continuous forward feed of open tubular fabric to a subsequent processing station comprising: an elongated curved guide mandrel over which the open tubular fabric passes, pulley means on one side of the curved guide mandrel operable to drivingly engage the fabric, said guide mandrel curving through at least about 90° around a portion of the circumference of the pulley means, and endless belt drive means on an opposite side of the curved guide mandrel to drivingly engage the fabric at the same fabric engaging speed as the pulley means as the fabric passes over the curved guide mandrel around the pulley means and to retain the curved guide mandrel in position around the pulley means.
Claim 3
Dependent Claim
23 words
A forward feed assembly according to claim 1 wherein the guide mandrel extends both forwardly and rearwardly beyond said endless belt drive means.
References Cited (Backward Citations)
FR1149841A
Cited
US3100070A
Cited
US3281299A
Cited
US3490973A
Cited
US3250654A
Cited
US3506522A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-08-04 | 1990-02-03 | 1990-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-04 | 1994-02-03 | 1994-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-04 | 1998-02-03 | 1998-08-05 | $7700.00 | Window Closed / Lapsed |