US3257938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swivel nozzle for sheet caliper control of paper
Assignee: Lodding Engineering Corp
•
Filing: 1963-09-24
•
Granted: 1966-06-28
•
Expires: 1983-09-24
Abstract
No abstract record available.
Inventors
- 👤 Goyette Francis Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:11
CPC Classifications
D; D21; D21F; D21F7/00; D21F7/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A SHEET CALIPER CONTROL DEVICE FOR PAPER MAKING MACHINES COMPRISING IN COMBINATION A ROLL, A SOURCE OF FLUID UNDER PRESSURE, MEANS FORMING A CHAMBER EXTENDING GENERALLY PARALLEL TO SAID ROLL SUBSTANTIALLY THE EXTENT THEREOF, SAID CHAMBER BEING CONNECTED TO THE SOURCE OF FLUID UNDER PRESSURE, AND A SERIES OF NOZZLES ARRANGED ALONG THE CHAMBER AND CONNECTED THERETO, EACH NOZZLE BEING ADAPTED TO DIRECT A STREAM OF FLUID AGAINST THE ROLL SURFACE, A VALVE FOR EACH NOZLE OPENING AND CLOSING THE NOZZLE WITH RESPECT TO THE CHAMBER, AND A SWIVEL BASE FOR EACH NOZZLE, EACH NOZZLE BEING ADAPTED TO SWIVEL ON ITS BASE TO PROVIDE FOR THE LINE OF NOZZLE DIRECTING AIR AT ANY LONGITUDINAL POINT ALONG THE ROLL SURFACE, AND MEANS LIMITING THE ARC OF SWING OF THE NOZZLES TO A SINGLE PLANE INCLUDING A PREDETERMINED LINE ALONG THE ROLL.
Claim 2
Dependent Claim
140 words
A SHEET CALIPER CONTROL DEVICE FOR PAPER MAKING MACHINES COMPRISING IN COMBINATION A ROLL, A SOURCE OF FLUID UNDER PRESSURE, MEANS FORMING A CHAMBER EXTENDING GENERALLY PARALLEL TO SAID ROLL SUBSTANTIALLY THE EXTENT THEREOF, SAID CHAMBER BEING CONNECTED TO THE SOURCE OF FLUID UNDER PRESSURE, AND A SERIES OF NOZZLES ARRANGED ALONG THE CHAMBER AND CONNECTED THERETO, EACH NOZZLE BEING ADAPTED TO DIRECT A STREAM OF FLUID AGAINST THE ROLL SURFACE, A VALVE FOR EACH NOZLE OPENING AND CLOSING THE NOZZLE WITH RESPECT TO THE CHAMBER, AND A SWIVEL BASE FOR EACH NOZZLE, EACH NOZZLE BEING ADAPTED TO SWIVEL ON ITS BASE TO PROVIDE FOR THE LINE OF NOZZLE DIRECTING AIR AT ANY LONGITUDINAL POINT ALONG THE ROLL SURFACE, AND MEANS LIMITING THE ARC OF SWING OF THE NOZZLES TO A SINGLE PLANE INCLUDING A PREDETERMINED LINE ALONG THE ROLL.
References Cited (Backward Citations)
US2993432A
Cited
US3128161A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-27 | 1969-12-27 | 1970-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-27 | 1973-12-27 | 1974-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $7700.00 | Window Closed / Lapsed |