US3071300A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tension regulator
Assignee: Beloit Iron Works Inc
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Filing: 1960-08-02
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Granted: 1963-01-01
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Expires: 1980-08-02
Abstract
No abstract record available.
Inventors
- 👤 Edgar J Justus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:43
CPC Classifications
B; B65; B65H; B65H23/00; B65H23/04; B65H23/06; B65H23/10; B65H23/105
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
185 words
TENSION CONTROL MEANS FOR SHEET MATERIAL COMPRISING A ROTATING ROLL HAVING SHEET MATERIAL TRAVELLING THEREFROM, A FLUID PRESSURE RESPONSIVE BRAKE FOR SAID ROLL, A SOURCE OF FLUID UNDER PRESSURE, VALVE MEANS HAVING A MOVABLE VALVE MEMBER AND CONNECTED BETWEEN SAID FLUID PRESSURE SOURCE AND SAID BRAKE FOR CONTROLLING THE OPERATION OF THE BRAKE, A TENSION RESPONSIVE MEMBER IN ENGAGEMENT WITH THE SHEET MATERIAL TO BE MOVABLE IN RESPONSE TO CHANGE IN TENSION OF THE SHEET MATERIAL AND CONNECTED TO THE VALVE MEANS TO CONTROL THE OPERATION OF THE BRAKE AS A FUNCTION OF POSITION CHANGE, SAID VALVE MEMBER AND SAID TENSION RESPONSIVE MEMBER INTERCONNECTED TO BE CO-MOVABLE BETWEEN A NORMAL POSITION AND TENSION CHANGING POSITIONS IN WHICH THE FORCE APPLIED BY THE BRAKE TO THE SHEET MATERIAL IS INCREASED OR DECREASED, FIRST FOLLOW-UP MEANS RESPONSIVE TO MOVEMENT OF THE VALVE MEMBER TO ONE OF SAID TENSION CHANGING POSITIONS TO RESTORE THE VALVE MEANS TO NORMAL POSITION, AND SECOND FOLLOW-UP MEANS PREVENTING SUBSTANTIAL MOVEMENT OF THE VALVE MEMBER OUT OF NORMAL POSITION IMMEDIATELY AFTER IT HAS BEEN RESTORED TO NORMAL POSITION BY SAID FIRST FOLLOW-UP MEANS.
Claim 2
Dependent Claim
185 words
TENSION CONTROL MEANS FOR SHEET MATERIAL COMPRISING A ROTATING ROLL HAVING SHEET MATERIAL TRAVELLING THEREFROM, A FLUID PRESSURE RESPONSIVE BRAKE FOR SAID ROLL, A SOURCE OF FLUID UNDER PRESSURE, VALVE MEANS HAVING A MOVABLE VALVE MEMBER AND CONNECTED BETWEEN SAID FLUID PRESSURE SOURCE AND SAID BRAKE FOR CONTROLLING THE OPERATION OF THE BRAKE, A TENSION RESPONSIVE MEMBER IN ENGAGEMENT WITH THE SHEET MATERIAL TO BE MOVABLE IN RESPONSE TO CHANGE IN TENSION OF THE SHEET MATERIAL AND CONNECTED TO THE VALVE MEANS TO CONTROL THE OPERATION OF THE BRAKE AS A FUNCTION OF POSITION CHANGE, SAID VALVE MEMBER AND SAID TENSION RESPONSIVE MEMBER INTERCONNECTED TO BE CO-MOVABLE BETWEEN A NORMAL POSITION AND TENSION CHANGING POSITIONS IN WHICH THE FORCE APPLIED BY THE BRAKE TO THE SHEET MATERIAL IS INCREASED OR DECREASED, FIRST FOLLOW-UP MEANS RESPONSIVE TO MOVEMENT OF THE VALVE MEMBER TO ONE OF SAID TENSION CHANGING POSITIONS TO RESTORE THE VALVE MEANS TO NORMAL POSITION, AND SECOND FOLLOW-UP MEANS PREVENTING SUBSTANTIAL MOVEMENT OF THE VALVE MEMBER OUT OF NORMAL POSITION IMMEDIATELY AFTER IT HAS BEEN RESTORED TO NORMAL POSITION BY SAID FIRST FOLLOW-UP MEANS.
References Cited (Backward Citations)
US2755032A
Cited
US2974894A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |