US3149489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet tension device
Assignee: Beloit Iron Works Inc
•
Filing: 1961-02-10
•
Granted: 1964-09-22
•
Expires: 1981-02-10
Abstract
No abstract record available.
Inventors
- 👤 John F Schmaeng
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:30
CPC Classifications
G; G01; G01L; G01L5/00; G01L5/04; G01L5/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
138 words
A MECHANISM FOR MEASURING TENSION IN A HIGH SPEED MOVING WEB COMPRISING FIRST AND SECOND SPACED SHOES HAVING PLANAR WEB SURFACE ENGAGING SURFACES FOR SUPPORTING A HIGH SPEED MOVING WEB IN A FIRST DIRECTION LATERALLY OF THE HIGH SPEED WEB ESTABLISHING A REFERENCE PLANE, A WEB SURFACE ENGAGING ROTATING WHEEL BETWEEN SAID FIRST AND SECOND SURFACE IN ROLLING ENGAGEMENT WITH THE WEB SUPPORTED FOR SHIFTING MOVEMENT LATERALLY OF THE WEB WITH VARIATION IN WEB TENSION, A FLUID PRESSURE OPERATED FORCE MEANS URGING SAID WHEEL AGAINST THE WEB WITH A FORCE THAT IS A FUNCTION OF INPUT FLUID PRESSURE, MEANS VARYING SAID PRESSURE AS A FUNCTION OF THE POSITION OF SAID WHEEL AND INCREASING THE PRESSURE AS A FUNCTION OF INCREASE IN WEB TENSION, AND MEANS MEASURING SAID PRESSURE SO THAT THE TENSION OF THE WEB BE DETERMINED THEREFROM.
References Cited (Backward Citations)
GB514812A
Cited
US2343229A
Cited
US2696111A
Cited
US2674127A
Cited
US2809519A
Cited
US2990990A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |