Patent US3650217A successfully refreshed from Google Patents.
US3650217A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet handling apparatus
Assignee: Pilkington North America Inc
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Filing: 1970-01-19
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Granted: 1972-03-21
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Expires: 1990-01-19
Abstract
Abstract Conveyor means for moving sheet material along a conveyor system comprised of aligned units. The conveying means includes a carrier having connector means and each of the conveyor units is provided with endless driving belts. The connector members are arranged at the opposite ends of the carrier and are adapted to engage the endless driving belts by magnetic attraction.
Inventors
- 👤 Kenneth N De Rose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:32
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/56; B; B65; B65G; B65G17/00; B65G17/30; B65G17/38; B65G35/00; B65G35/06; B65G49/00; B65G49/05; B65G49/06; B65G49/063; B65G49/066; B65G49/067; C03; C03C; C03C17/00; C03C17/001; C03C17/002; C23C14/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
99 words
Apparatus for conveying sheets of material comprising: a. a carrier; b. means supporting said carrier for movement along a generally horizontal path; c. a plurality of chain belts located along the path of movement of the carrier and spaced from one another along said path; d. means for driving said chain belts; and e. magnetic means acting to couple said carrier to the chain belts to move said carrier along said path including at least two spaced magnetically attractable members carried by said carrier, the distance between adjacent chain belts being less than the distance between said two members.
Claim 2
Dependent Claim
99 words
Apparatus for conveying sheets of material comprising: a. a carrier; b. means supporting said carrier for movement along a generally horizontal path; c. a plurality of chain belts located along the path of movement of the carrier and spaced from one another along said path; d. means for driving said chain belts; and e. magnetic means acting to couple said carrier to the chain belts to move said carrier along said path including at least two spaced magnetically attractable members carried by said carrier, the distance between adjacent chain belts being less than the distance between said two members.
Claim 3
Dependent Claim
24 words
Apparatus for conveying sheets of material as defined in claim 1, wherein said chain belts are comprised of links having a magnet attached thereto.
Claim 4
Dependent Claim
97 words
Apparatus for conveying sheets of material comprising; a. a carrier; b. means supporting said carrier for movement along a generally horizontal path; c. a plurality of chaIn belts located along the path of movement of the carrier and spaced from one another along said path; d. means for driving said chain belts; and e. magnetic means acting to couple said carrier to the chain belts to move said carrier along said path including at least two spaced magnets carried by said carrier, the distance between adjacent chain belts being less than the distance between said two magnets.
Claim 5
Dependent Claim
97 words
Apparatus for conveying sheets of material comprising; a. a carrier; b. means supporting said carrier for movement along a generally horizontal path; c. a plurality of chaIn belts located along the path of movement of the carrier and spaced from one another along said path; d. means for driving said chain belts; and e. magnetic means acting to couple said carrier to the chain belts to move said carrier along said path including at least two spaced magnets carried by said carrier, the distance between adjacent chain belts being less than the distance between said two magnets.
Claim 6
Dependent Claim
32 words
Apparatus for conveying sheets of material as defined in claim 3, wherein each chain belt is comprised of links formed with a lug portion on which is fixed a magnetically attractable plate.
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) | 1975-03-21 | 1975-09-20 | 1976-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-21 | 1979-09-20 | 1980-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-21 | 1983-09-20 | 1984-03-21 | $7700.00 | Window Closed / Lapsed |