Patent US4175309A successfully refreshed from Google Patents.
US4175309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyorized fin accumulator
Assignee: Motors Liquidation Co
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Filing: 1978-06-15
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Granted: 1979-11-27
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Expires: 1998-06-15
Abstract
Abstract A method of forming elongated heat exchange fins from a continuous sheet of material having a width equal to a multiple of the width of a single fin and of collecting the fins in stacked relationship including the following steps: forming the sheet into longitudinally continuous adjacent fin strips with a width equal to the width of the fins, severing each fin strip into finite length fins with the ends in adjacent strips being longitudinally staggered and the ends in alternate strips being transversely aligned, progressing the finite length fins of alternate fin strips in a longitudinal direction, collecting the transversely aligned fins in the alternate fin strips moving the collected fins one fin width in the transverse direction, simultaneously progressing the finite fins of intermediate fin strips and stacking the finite fins of the intermediate fin strips over respective finite fins of the alternate fin strips on the respective finite fins of the alternate fin strips.
Inventors
- 👤 James A. Barnard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:16
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/02; B21D53/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49366
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
162 words
A method of forming elongated heat exchanger fins from a continuous sheet of material having a width equal to a multiple of the width of a single fin and for collecting the fins in stacked relationship comprising: forming the sheet into longitudinally continuous adjacent fin strips with a width equal to the width of the fins, forming successive portions of each fin strip into integrally interconnected fins, severing each fin strip into adjacent finite fins with the fins in one strip being longitudinally staggered with respect to the fins in each adjacent strip and with the fins in alternate and intermediate strips being transversely aligned, simultaneously progressing the finite fins of the alternate and the intermediate fins strips in the longitudinal direction, collecting the transversely aligned fins of the alternate fin strips, moving the collected fins one fin width in the transverse direction, collecting the transversely aligned fins of the intermediate fin strips over the respective fins of the alternate fin strip.
Claim 2
Independent Claim
162 words
A method of forming elongated heat exchanger fins from a continuous sheet of material having a width equal to a multiple of the width of a single fin and for collecting the fins in stacked relationship comprising: forming the sheet into longitudinally continuous adjacent fin strips with a width equal to the width of the fins, forming successive portions of each fin strip into integrally interconnected fins, severing each fin strip into adjacent finite fins with the fins in one strip being longitudinally staggered with respect to the fins in each adjacent strip and with the fins in alternate and intermediate strips being transversely aligned, simultaneously progressing the finite fins of the alternate and the intermediate fins strips in the longitudinal direction, collecting the transversely aligned fins of the alternate fin strips, moving the collected fins one fin width in the transverse direction, collecting the transversely aligned fins of the intermediate fin strips over the respective fins of the alternate fin strip.
Claim 3
Independent Claim
180 words
A method of forming elongated heat exchanger fins from a continuous sheet of material having a width equal to a multiple of the width of a single fin and of collecting the fins in stacked relationship comprising: forming the sheet into longitudinally continuous adjacent fin strips with a width equal to the width of the fins, forming successive portions of each fin strip into integrally interconnected fins, severing each fin strip into adjacent finite fins with the fins in one strip being longitudinally staggered with respect to the fins in each adjacent strip and with the fins in alternate and intermediate fin strips being transversely aligned, simultaneously progressing the finite fins of the alternate fin strips in a longitudinal direction, collecting the transversely aligned finite fins of the alternate fin strips, moving the collected fins one fin width in a transverse direction, simultaneously progressing the finite fins of the intermediate fin strips over respective fins of the alternate fin strips, and stacking the finite fins of the intermediate fin strips on their respective finite fins of the alternate fin strips.
Claim 4
Independent Claim
180 words
A method of forming elongated heat exchanger fins from a continuous sheet of material having a width equal to a multiple of the width of a single fin and of collecting the fins in stacked relationship comprising: forming the sheet into longitudinally continuous adjacent fin strips with a width equal to the width of the fins, forming successive portions of each fin strip into integrally interconnected fins, severing each fin strip into adjacent finite fins with the fins in one strip being longitudinally staggered with respect to the fins in each adjacent strip and with the fins in alternate and intermediate fin strips being transversely aligned, simultaneously progressing the finite fins of the alternate fin strips in a longitudinal direction, collecting the transversely aligned finite fins of the alternate fin strips, moving the collected fins one fin width in a transverse direction, simultaneously progressing the finite fins of the intermediate fin strips over respective fins of the alternate fin strips, and stacking the finite fins of the intermediate fin strips on their respective finite fins of the alternate fin strips.
Claim 5
Independent Claim
154 words
A method of forming elongated heat exchanger fins from a continuous sheet of material having a width equal to a multiple of the width of a single fin and of collecting the fins in stacked relationship comprising: forming the sheet into longitudinally continuous adjacent fin strips with a width equal to the width of the fins, forming successive portions of each fin strip into integrally interconnected fins, severing each fin strip into adjacent finite fins extending in alignment in a transverse direction thus forming end to end groups of transversely aligned fins, progressing the fins in a longitudinal direction, simultaneously collecting a first group of fins in side by side relation, moving the collected fins one fin width in a transverse direction, subsequently progressing a second group of transversely aligned fins over the fins of the first group and stacking the fins of the second group on the respective fins of the first group.
Claim 6
Independent Claim
154 words
A method of forming elongated heat exchanger fins from a continuous sheet of material having a width equal to a multiple of the width of a single fin and of collecting the fins in stacked relationship comprising: forming the sheet into longitudinally continuous adjacent fin strips with a width equal to the width of the fins, forming successive portions of each fin strip into integrally interconnected fins, severing each fin strip into adjacent finite fins extending in alignment in a transverse direction thus forming end to end groups of transversely aligned fins, progressing the fins in a longitudinal direction, simultaneously collecting a first group of fins in side by side relation, moving the collected fins one fin width in a transverse direction, subsequently progressing a second group of transversely aligned fins over the fins of the first group and stacking the fins of the second group on the respective fins of the first group.
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) | 1982-11-26 | 1983-05-28 | 1983-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-26 | 1987-05-28 | 1987-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-26 | 1991-05-28 | 1991-11-27 | $7700.00 | Window Closed / Lapsed |