Patent US3590778A successfully refreshed from Google Patents.
US3590778A
Expired / Lapsed
US
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Web coating control
Assignee: Stewart Warner Corp
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Filing: 1968-07-10
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Granted: 1971-07-06
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Expires: 1988-07-10
Abstract
Abstract The following specification describes an arrangement for applying a uniform oil coating of selected thickness to a steel web moving at variable speed past an absorbent roll which coats the web with oil. The roll travels the same distance as the web and drives a counter for counting a predetermined number of web lengths irrespective of web speed. A selected quantity of oil is sprayed on the roll under control of a timer after a predetermined number of web lengths are counted to ensure that the quantity of oil sprayed corresponds to a predetermined web length for providing a uniform oil coat of selected thickness irrespective of web speed.
Inventors
- 👤 Henry J Mozzi Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:23
CPC Classifications
B; B21; B21B; B21B45/00; B21B45/02; B21B45/0239; B21B45/0245; B21B45/0248; B21B45/0251; B05; B05C; B05C1/00; B05C1/04; B05C1/08; B05C1/0826; B05C9/00; B05C9/04
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
174 words
Apparatus for spraying oil on an absorbent roll engaged with a moving web to provide a uniform coating of oil having a selected thickness on said web in response to the application of an oil spray to said roll, the improvement comprising a counter, means rotated in response to the movement of said web for repeatedly operating said counter to detect the passage of a predetermined web length, a timer operable for a selected time period, means operated in response to said counter detecting the passage of said predetermined web length for operating said timer and for spraying said oil on said roll only for said selected time period under control of said timer, means operated in response to said counter detecting said predetermined web length for disabling said counter for said selected time period, and means operated in response to the operation of said timer for said selected time period for thereafter enabling operation of said counter and for preventing operation of said timer until said counter again detects said predetermined web length.
Claim 2
Dependent Claim
174 words
Apparatus for spraying oil on an absorbent roll engaged with a moving web to provide a uniform coating of oil having a selected thickness on said web in response to the application of an oil spray to said roll, the improvement comprising a counter, means rotated in response to the movement of said web for repeatedly operating said counter to detect the passage of a predetermined web length, a timer operable for a selected time period, means operated in response to said counter detecting the passage of said predetermined web length for operating said timer and for spraying said oil on said roll only for said selected time period under control of said timer, means operated in response to said counter detecting said predetermined web length for disabling said counter for said selected time period, and means operated in response to the operation of said timer for said selected time period for thereafter enabling operation of said counter and for preventing operation of said timer until said counter again detects said predetermined web length.
Claim 3
Dependent Claim
65 words
The apparatus claimed in claim 1 in which said counter is adjustable to select a desired number of said predetermined web lengths, and said timer is adjustable to select any one of a plurality of different time periods with the portion of the web passing said roll during any one of said selected time periods being shorter than the total of said predetermined web lengths.
Claim 4
Dependent Claim
205 words
Apparatus for spraying oil on an absorbent roll engaged with a moving web for rotation in response to the movement of said web to provide a uniform coating of oil having a selected thickness on said web in response to the application of an oil spray to said roll, the improvement comprising a counter, means rotated in synchronism with the rotation of said roll for periodically operating said counter to count the passage of each of a plurality of predetermined web lengths each corresponding to a predetermined angular distance traveled by said roll, an adjustable timer operable for a selected time period, means operated in response to said counter operating said selected plurality of times for operating said timer and for spraying said oil on said roll only for said selected time period under control of said timer, means operated in response to said counter being operated said selected plurality of times for preventing operation of said counter for said selected time period, and means operated in response to the operation of said timer for said selected time period for thereafter enabling operation of said counter and for preventing operation of said timer until said counter is again operated for said selected plurality of times.
Claim 5
Dependent Claim
205 words
Apparatus for spraying oil on an absorbent roll engaged with a moving web for rotation in response to the movement of said web to provide a uniform coating of oil having a selected thickness on said web in response to the application of an oil spray to said roll, the improvement comprising a counter, means rotated in synchronism with the rotation of said roll for periodically operating said counter to count the passage of each of a plurality of predetermined web lengths each corresponding to a predetermined angular distance traveled by said roll, an adjustable timer operable for a selected time period, means operated in response to said counter operating said selected plurality of times for operating said timer and for spraying said oil on said roll only for said selected time period under control of said timer, means operated in response to said counter being operated said selected plurality of times for preventing operation of said counter for said selected time period, and means operated in response to the operation of said timer for said selected time period for thereafter enabling operation of said counter and for preventing operation of said timer until said counter is again operated for said selected plurality of times.
Claim 6
Dependent Claim
138 words
Apparatus for spraying a liquid on an absorbent roll engaged with a moving web to provide a uniform coating of liquid having a selected thickness on said web in response to the application of a liquid spray to said roll, the improvement comprising means for detecting the passage of a predetermined length of said web irrespective of variations in the speed of said web, clock means operable for a predetermined time in response to the detection of the passage of said predetermined web length by said detecting means for enabling the application of said liquid spray and for disabling said detecting means for said predetermined time period, and means operated in response to the termination of the operation of clock means at the end of said time period for enabling said detecting means and terminating said liquid spray.
Claim 7
Dependent Claim
138 words
Apparatus for spraying a liquid on an absorbent roll engaged with a moving web to provide a uniform coating of liquid having a selected thickness on said web in response to the application of a liquid spray to said roll, the improvement comprising means for detecting the passage of a predetermined length of said web irrespective of variations in the speed of said web, clock means operable for a predetermined time in response to the detection of the passage of said predetermined web length by said detecting means for enabling the application of said liquid spray and for disabling said detecting means for said predetermined time period, and means operated in response to the termination of the operation of clock means at the end of said time period for enabling said detecting means and terminating said liquid spray.
References Cited (Backward Citations)
US3301699A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |