Patent US3434971A successfully refreshed from Google Patents.
Patent US3663013A successfully refreshed from Google Patents.
US3663013A
Expired / Lapsed
US
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Work positioning devices
Assignee: USM Corp
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Filing: 1970-06-15
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Granted: 1972-05-16
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Expires: 1990-06-15
Abstract
Abstract A bottom feeding mechanism, comprised of a plurality of caged balls and an endless belt in frictional driving contact therewith, is provided with an edge gage for uniformly positioning work pieces, especially flexible sheet material such as fabric, fed onto the balls. In addition to adjustably determining a selected marginal position and/or a line of feeding, for instance as required for hemming and/or stitching machines, the device is adaptable for turning over successive work pieces and aligning them in uniform manner.
Inventors
- 👤 Francis A Wickers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:05
CPC Classifications
A; A41; A41H; A41H43/00; A41H43/02; A41H43/0271; A41H43/0278
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
125 words
Work orienting mechanism comprising, in combination, an endless drive means operable in one direction, a ball cage mounted for loosely retaining a plurality of balls in frictional engagement with the drive means while partly exposed for movable supporting a work piece to be positioned, an edge gage fixedly extending into at least a portion of the path of the work piece thus supported when the balls are caused by said drive means frictionally to feed the work piece oppositely from said one direction, and a deflector means disposed adjacent to a margin of said cage to deflect the work piece as it passes from its support on said balls whereby the work piece is inverted and reversed for feeding in contact with said drive means.
Claim 2
Dependent Claim
125 words
Work orienting mechanism comprising, in combination, an endless drive means operable in one direction, a ball cage mounted for loosely retaining a plurality of balls in frictional engagement with the drive means while partly exposed for movable supporting a work piece to be positioned, an edge gage fixedly extending into at least a portion of the path of the work piece thus supported when the balls are caused by said drive means frictionally to feed the work piece oppositely from said one direction, and a deflector means disposed adjacent to a margin of said cage to deflect the work piece as it passes from its support on said balls whereby the work piece is inverted and reversed for feeding in contact with said drive means.
Claim 3
Dependent Claim
25 words
The mechanism of claim 1 wherein the deflector means is in the form of a nozzle for directing a stream of air against the work.
References Cited (Backward Citations)
US3442400A
Cited
GB1154964A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |