US3929221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper sheet conveyor
Assignee: Lipe Rollway Corp
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Filing: 1974-04-11
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Granted: 1975-12-30
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Expires: 1994-04-11
Abstract
Abstract A paper sheet conveyor feeds separate or bundled sheets of paper on edge along a feed path and uses a vibrating element having its upper surface covered with pile material having resilient bristles inclined from the vertical toward the direction of feed along the path. The tips of the bristles are flagged or split or bent transversely to the feed direction to support the bottom edges of the paper sheets on the tips of the bristles for feeding along the path as the bristles vibrate.
Inventors
- 👤 Jack W Armstrong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:38
CPC Classifications
B; B65; B65G; B65G27/00; B65G27/04; B65H; B65H5/00; B65H5/008; B65H2301/00; B65H2301/30; B65H2301/32; B65H2301/321
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
147 words
A conveyor for moving paper sheets on edge along a predetermined path established by a feed element, said conveyor comprising: a. the upper surface of said feed element having pile material with resilient bristles inclined from the vertical toward the direction of feed along said path; b. means for vibrating said feed element to move said bristles repeatedly against the bottom edges of said paper sheets to move said paper sheets along said path in said direction of feed; c. the tips of said bristles being at a uniform height and having surfaces angled relative to said bristle inclination angle to extend under and support said bottom edges of said paper sheets on said angled surfaces to prevent said paper sheets from slipping down between said bristles; and d. said tips of said bristles being bent transversely of said direction of feed to form said angled surfaces.
Claim 2
Dependent Claim
147 words
A conveyor for moving paper sheets on edge along a predetermined path established by a feed element, said conveyor comprising: a. the upper surface of said feed element having pile material with resilient bristles inclined from the vertical toward the direction of feed along said path; b. means for vibrating said feed element to move said bristles repeatedly against the bottom edges of said paper sheets to move said paper sheets along said path in said direction of feed; c. the tips of said bristles being at a uniform height and having surfaces angled relative to said bristle inclination angle to extend under and support said bottom edges of said paper sheets on said angled surfaces to prevent said paper sheets from slipping down between said bristles; and d. said tips of said bristles being bent transversely of said direction of feed to form said angled surfaces.
Claim 3
Dependent Claim
136 words
A conveyor for moving paper sheets on edge along a predetermined path established by a feed element, said conveyor comprising: a. the upper surface of said feed element having pile material with resilient bristles inclined from the vertical toward the direction of feed along said path; b. means for vibrating said feed element to move said bristles repeatedly against the bottom edges of said paper sheets along said path in said direction of feed; c. the tips of said bristles being at a uniform height and having surfaces angled relative to said bristle inclination angle to extend under and support said bottom edges of said paper sheets on said angled surfaces to prevent said paper sheets from slipping down between said bristles; and d. said tips of said bristles being forked to form said angled surfaces.
Claim 4
Dependent Claim
136 words
A conveyor for moving paper sheets on edge along a predetermined path established by a feed element, said conveyor comprising: a. the upper surface of said feed element having pile material with resilient bristles inclined from the vertical toward the direction of feed along said path; b. means for vibrating said feed element to move said bristles repeatedly against the bottom edges of said paper sheets along said path in said direction of feed; c. the tips of said bristles being at a uniform height and having surfaces angled relative to said bristle inclination angle to extend under and support said bottom edges of said paper sheets on said angled surfaces to prevent said paper sheets from slipping down between said bristles; and d. said tips of said bristles being forked to form said angled surfaces.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-29 | 1979-06-30 | 1979-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-29 | 1983-06-30 | 1983-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-29 | 1987-06-30 | 1987-12-30 | $7700.00 | Window Closed / Lapsed |