Patent US3604078A successfully refreshed from Google Patents.
US3604078A
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Web feed advance and retard control means
Assignee: Individual
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Filing: 1969-06-20
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Granted: 1971-09-14
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Expires: 1989-06-20
Abstract
Abstract New and improved web feed advance and retard control means are provided and comprise means to retard or advance the feed rate of said web to correct for distortion of the latter, and means to indicate and adjust the extent of said feed rate increase or decrease.
Inventors
- 👤 Joseph Sciola
- 👤 Gabor Nagy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:26
CPC Classifications
D; D06; D06B; D06B23/00; D06B23/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
212 words
In web feed advance and retard control means for removing distortion from a web being fed by controlling the feed rate of tenter frame means and tenter frame entry feed means relative to the feed rate of tenter frame exit feed means, the improvement comprising, means to vary the feed rate of said tenter frame means and said tenter frame entry feed means relative to the feed rate of said tenter frame exit feed means, manually operable means to adjust the extent of such feed rate variation, and means to indicate the extent of such feed rate variation, said feed rate varying means comprising means to increase or decrease the feed rates of said tenter frame entry feed means and said tenter frame means relative to the rate of said tenter frame exit feed means, and indicating and adjusting means being operable in each instance to indicate and adjust the extent of such increase or decrease, said feed rate adjusting means being manually operable and comprising feed rate adjusting means which will remain in either of a feed rate increase or a feed rate decrease condition once manually placed therein, and feed rate adjusting means which must be manually maintained in each of said feed rate increase and feed rate decrease conditions.
Claim 2
Dependent Claim
212 words
In web feed advance and retard control means for removing distortion from a web being fed by controlling the feed rate of tenter frame means and tenter frame entry feed means relative to the feed rate of tenter frame exit feed means, the improvement comprising, means to vary the feed rate of said tenter frame means and said tenter frame entry feed means relative to the feed rate of said tenter frame exit feed means, manually operable means to adjust the extent of such feed rate variation, and means to indicate the extent of such feed rate variation, said feed rate varying means comprising means to increase or decrease the feed rates of said tenter frame entry feed means and said tenter frame means relative to the rate of said tenter frame exit feed means, and indicating and adjusting means being operable in each instance to indicate and adjust the extent of such increase or decrease, said feed rate adjusting means being manually operable and comprising feed rate adjusting means which will remain in either of a feed rate increase or a feed rate decrease condition once manually placed therein, and feed rate adjusting means which must be manually maintained in each of said feed rate increase and feed rate decrease conditions.
Claim 3
Dependent Claim
88 words
In web feed advance and retard control means as in claim 1 wherein, said tenter frame means, said tenter frame entry feed means and said tenter frame exit feed means are respectively driven by electric drive motors, and wherein said feed rate varying means comprise means to increase or decrease the speeds of said electric drive motors which drive said tenter frame means and said tenter frame entry feed means, respectively, relative to the speed of said electric drive motor which drives said Tenter frame exit feed means.
Claim 4
Dependent Claim
31 words
In web feed advance and retard control means as in claim 2 wherein, said means to increase or decrease said electric drive motor speeds comprise electric differential means operatively connected thereto.
Claim 5
Dependent Claim
28 words
In web feed advance and retard control means as in claim 3 wherein, said adjusting means comprise switch means which are operable to actuate said electrical differential means.
Claim 6
Dependent Claim
41 words
In web feed advance and retard control means as in claim 4 wherein, said switch means comprise a retained contact switch which is movable between ''''advance'''' and ''''retard'''' positions to respectively increase and decrease the speeds of said electric drive motors.
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) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |