Patent US6441691B1 successfully refreshed from Google Patents.
US3763701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Web tension devices
Assignee: Individual
•
Filing: 1972-07-05
•
Granted: 1973-10-09
•
Expires: 1992-07-05
Abstract
Abstract A web or filament tension measuring device including a shaft over which the web or filament is passed with the end of the shaft being connected by a coupling member to a frame member, the shaft or coupling member having a stress zone. The web or filament is held in such a manner as to produce a web or filament tension load component on the shaft which acts on the stress zone, which component is passed to stress sensing transducing means responsive to stresses and therefore representative of the tension in the web or filament. The stress sensing transducing means comprises a cylindrical carrier with stress responsive elements constructed on opposite sides of the cylindrical carrier.
Inventors
- 👤 G Wright
- 👤 G Ward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:43
CPC Classifications
G; G01; G01L; G01L5/00; G01L5/04; G01L5/10; G01L5/107; G01L5/0009; G01L5/0019
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
100 words
Apparatus for measuring the tension in a moving web, comprising: spaced frame members; a shaft extending between said frame members for tensioning said web; means for coupling respective ends of said shaft to the respective frame members, said means for coupling each including deflection members comprising a hollow shaft and extending from a respective side frame to a respective end of said shaft, and a bearing for mounting the end of said shaft to said hollow shaft; and strain sensing transducing means mounted on each of said deflection members for generating a signal representing the tension of said moving web.
Claim 2
Dependent Claim
100 words
Apparatus for measuring the tension in a moving web, comprising: spaced frame members; a shaft extending between said frame members for tensioning said web; means for coupling respective ends of said shaft to the respective frame members, said means for coupling each including deflection members comprising a hollow shaft and extending from a respective side frame to a respective end of said shaft, and a bearing for mounting the end of said shaft to said hollow shaft; and strain sensing transducing means mounted on each of said deflection members for generating a signal representing the tension of said moving web.
Claim 3
Dependent Claim
35 words
Apparatus for measuring tension according to claim 1 wherein each strain sensing transducing means comprises a length of thin metallic film arranged in a non-inductive convolute path and formed by evaporation techniques on a base.
Claim 4
Dependent Claim
25 words
Apparatus for measuring tension according to claim 2, wherein the thin metallic film is of alumInium which is formed on a base of epoxy film.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |