Patent US3588090A successfully refreshed from Google Patents.
US3588090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aligning mechanism for envelope blanks
Assignee: Bell and Howell Co
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Filing: 1969-11-13
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Granted: 1971-06-28
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Expires: 1989-11-13
Abstract
Abstract IRREGULARLY SHAPED BLANKS OR SHEETS ARE TRANSPORTED ALONG A CONVEYOR SYSTEM HAVING CONVEYOR BELTS FOR BIASING THE BLANKS AGAINST A WALL LOCATED ALONG THE CONVEYING STRUCTURE. THE BLANKS ARE IRREGULAR (FOR EXAMPLE, T-SHAPED) AND CONTACT THE WALL AT SEVERAL POINTS. AN ALIGNING PIN IS PROVIDED WITH A PHOTOCELL OPERATED MEANS FOR SELECTIVELY MOVING IT INTO THE PATH OF THE BLANK SO THAT THE PIN MAKES SLIDING CONTACT WITH THE SIDE EDGE OF A TRAILING PORTION OF EACH BLANK. IN THIS REGARD, THE ALIGNING PIN IN MOVED INTO A POSITION RELATIVE TO THE WALL SO THAT CONTINUED MOTION ALONG THE CONVEYOR CAUSES EACH BLANK TO PIVOT INTO ITS DESIRED ALIGNMENT.
Inventors
- 👤 James Anthony Huston
- 👤 Robert Wayne Belden
- 👤 Kenneth Devere May
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:40
CPC Classifications
B; B65; B65H; B65H5/00; B65H5/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |