US3901069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Viscosimeter
Assignee: STICHTING INSTITUUT VOOR GRAFISCHE TECHNIEK TNO
•
Filing: 1974-07-29
•
Granted: 1975-08-26
•
Expires: 1994-07-29
Abstract
Abstract In a device for determining the viscosity of a substance whereby a measuring roller is brought in rolling contact with an axially reciprocating distributing roller provided with a uniform film of the liquid substance, and a cylindrical measuring roller, having a shaft suspended for free rotation between the ends of two bearing members fixedly connected with a frame, is brought in rolling contact with the distributing roller and the lateral force occurring in the measuring roller is measured.
Inventors
- 👤 Gastel Leonard A Van
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:39
CPC Classifications
G; G01; G01N; G01N11/00; G01N11/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
99 words
A device for determining the viscosity of a liquid substance, comprising in combination a. a distributing roller being, during operation, at least indirectly in contact with the liquid for providing a liquid film on said distributing roller; b. means for axially reciprocating said distributing roller; c. a cylindrical measuring roller; d. support means for freely rotatably holding said measuring roller in contact with the reciprocating distributing roller; and e. sensor means at least indirectly in contact with said measuring roller for measuring the axial forces generated in said measuring roller by the sliding contact with said reciprocating distributing roller.
Claim 2
Independent Claim
99 words
A device for determining the viscosity of a liquid substance, comprising in combination a. a distributing roller being, during operation, at least indirectly in contact with the liquid for providing a liquid film on said distributing roller; b. means for axially reciprocating said distributing roller; c. a cylindrical measuring roller; d. support means for freely rotatably holding said measuring roller in contact with the reciprocating distributing roller; and e. sensor means at least indirectly in contact with said measuring roller for measuring the axial forces generated in said measuring roller by the sliding contact with said reciprocating distributing roller.
Claim 3
Dependent Claim
41 words
A device as defined in claim 1, further comprising a frame member; said measuring roller having a shaft; said support means including bearings in which said shaft journals; and bearing carrier members supporting said bearings and attached to said frame member.
Claim 4
Dependent Claim
17 words
A device as defined in claim 2, said sensor means being attached to said bearing carrier members.
Claim 5
Dependent Claim
41 words
A device as defined in claim 1, there being provided a plurality of distributing rollers in contact with one another; means for rotating at least one of said distributing rollers; one of said distributing rollers being the axially reciprocating distributing roller.
Claim 6
Dependent Claim
14 words
A device as defined in claim 1, wherein said sensor means includes strain gauges.
Claim 7
Dependent Claim
28 words
A device as defined in claim 5, wherein the axially reciprocating distributing roller belongs to a system of distributing rollers in a device for processing a liquid substance.
Claim 8
Dependent Claim
16 words
A device as defined in claim 1, wherein said sensor means includes a spring tension meter.
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) | 1978-08-25 | 1979-02-24 | 1979-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-25 | 1983-02-24 | 1983-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-25 | 1987-02-24 | 1987-08-26 | $7700.00 | Window Closed / Lapsed |