US3411075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gauge means for measuring caliper profile of traveling webs
Assignee: NewPage Wisconsin System Inc
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Filing: 1963-10-03
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Granted: 1968-11-12
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Expires: 1983-10-03
Abstract
No abstract record available.
Inventors
- 👤 John B Kahoun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:00
CPC Classifications
G; G01; G01B; G01B7/00; G01B7/02; G01B7/06; G01B7/10; G01B7/107; G01B7/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
IN A DEVICE FOR DETERMINING CALIPER OF NON-MAGNETIC SHEET MATERIALS, A CALIPER HEAD MEMBER CONTAINING AN ELECTROMAGNETIC REACTOR FOR CONTACT WITH ONE SIDE OF THE MATERIAL, A PERMEABLE SHOE MEMBER FOR CONTACT WITH THE OTHER SIDE OF THE MATERIAL, SAID MEMBERS BEING ALIGNED WITH ONE ANOTHER IN THE DIRECTION NORMAL TO THE PLANE OF THE MATERIAL FOR CONFINING A PORTION OF THE MATERIAL THEREBETWEEN AND FOR FORMING A MAGNETIC CIRCUIT IN WHICH THE MATERIAL CONSTITUTES THE RELUCTANCE GAP, MEANS INDEPENDENT OF SAID REACTOR ACTING SUBSTANTIALLY AT THE PLANE OF THE MATERIAL FOR URGING SAID MEMBERS TOWARD ONE ANOTHER TO HOLD THE MEMBERS IN CONTACT WITH THE OPPOSITE SIDES OF THE MATERIAL AND TO CONFINE A PORTION OF THE MATERIAL THEREBETWEEN, A POWER SUPPLY FOR SAID REACTOR, AND MEANS FOR MEASURING THE IMPEDANCE OF SAID REACTOR.
Claim 2
Dependent Claim
135 words
IN A DEVICE FOR DETERMINING CALIPER OF NON-MAGNETIC SHEET MATERIALS, A CALIPER HEAD MEMBER CONTAINING AN ELECTROMAGNETIC REACTOR FOR CONTACT WITH ONE SIDE OF THE MATERIAL, A PERMEABLE SHOE MEMBER FOR CONTACT WITH THE OTHER SIDE OF THE MATERIAL, SAID MEMBERS BEING ALIGNED WITH ONE ANOTHER IN THE DIRECTION NORMAL TO THE PLANE OF THE MATERIAL FOR CONFINING A PORTION OF THE MATERIAL THEREBETWEEN AND FOR FORMING A MAGNETIC CIRCUIT IN WHICH THE MATERIAL CONSTITUTES THE RELUCTANCE GAP, MEANS INDEPENDENT OF SAID REACTOR ACTING SUBSTANTIALLY AT THE PLANE OF THE MATERIAL FOR URGING SAID MEMBERS TOWARD ONE ANOTHER TO HOLD THE MEMBERS IN CONTACT WITH THE OPPOSITE SIDES OF THE MATERIAL AND TO CONFINE A PORTION OF THE MATERIAL THEREBETWEEN, A POWER SUPPLY FOR SAID REACTOR, AND MEANS FOR MEASURING THE IMPEDANCE OF SAID REACTOR.
References Cited (Backward Citations)
US1989037A
Cited
US1872351A
Cited
US2116119A
Cited
US2162710A
Cited
US2637115A
Cited
US2665333A
Cited
US2923150A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |