US4032670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable coating feed
Assignee: Airprint Systems Inc
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Filing: 1976-07-30
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Granted: 1977-06-28
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Expires: 1996-07-30
Abstract
Abstract A servo motor is mounted to a liquid spray head and operated by a speed sensing control means to automatically control the liquid flow rate from the head in proportion to the speed at which a surface to be sprayed passes said head.
Inventors
- 👤 Walter B. Warning, Sr.
- 👤 Walter B. Warning, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:46
CPC Classifications
B; B05; B05B; B05B13/00; B05B13/02; B05B13/0221; B05B12/00; B05B12/08; B05B12/12; B05B12/122; B05B12/126; B05B7/00; B05B7/02; B05B7/12; B05B7/1254; B05B7/1263; B05B7/1272; B27; B27G; B27G11/00; B05B1/00; B05B1/30; B05B1/3033; B05B1/304; B05B1/3046; B05B1/306
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
149 words
A method of controlling the operation of a device for applying liquid in a predetermined pattern to a moving surface, comprising the steps of mounting a liquid applying device in a fixed position along the path of travel of said surface and controlling liquid feed through a discharge orifice of said device by a needle valve operatively associated with a motor driven adjustable stop spaced from said valve, feeding liquid from said device to said surface as it moves thereby, generating a signal having a value related to the speed at which said surface passes said applying device and wherein said signal is in the form of an electric pulse for each predetermined incremental movement of surface, and controlling the motor drive of said adjustable stop in response to the value of said signal to thereby vary the rate at which liquid is fed from said liquid applying device.
Claim 2
Independent Claim
149 words
A method of controlling the operation of a device for applying liquid in a predetermined pattern to a moving surface, comprising the steps of mounting a liquid applying device in a fixed position along the path of travel of said surface and controlling liquid feed through a discharge orifice of said device by a needle valve operatively associated with a motor driven adjustable stop spaced from said valve, feeding liquid from said device to said surface as it moves thereby, generating a signal having a value related to the speed at which said surface passes said applying device and wherein said signal is in the form of an electric pulse for each predetermined incremental movement of surface, and controlling the motor drive of said adjustable stop in response to the value of said signal to thereby vary the rate at which liquid is fed from said liquid applying device.
Claim 3
Dependent Claim
26 words
A method according to claim 1 wherein said pulses are counted to control the iniation and termination of the application of said liquid to said surface.
Claim 4
Dependent Claim
20 words
A method according to claim 1 wherein the liquid fed from said device is in the form of a spray.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-06-27 | 1980-12-27 | 1981-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-27 | 1984-12-27 | 1985-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-27 | 1988-12-27 | 1989-06-28 | $7700.00 | Window Closed / Lapsed |