US3335608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature compensated element for sensing and controlling humidity changes
Assignee: W M CHACE CO
•
Filing: 1964-10-16
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Granted: 1967-08-15
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Expires: 1984-10-16
Abstract
No abstract record available.
Inventors
- 👤 Clarence F Alban
- 👤 Charles C Perry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:41
CPC Classifications
G; G01; G01N; G01N19/00; G01N19/10; G01N17/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A LAMINATED ELEMENT FOR SENSING CHANGES IN AMBIENT HUMIDITY CONDITIONS, SAID ELEMENT COMPRISING TWO LAMINATIONS ARRANGED IN SURFACE-TO-SURFACE CONTACT AND SECURED TOGETHER SO THAT THE LAMINATIONS ACTS AS AN INTEGRAL WHOLE, SAID LAMINATIONS BEING FORMED OF MATERIALS HAVING SUBSTANTIALLY DIFFERENT COEFFICIENTS OF LINEAR HYGROSCOPIC EXPANSIOPN SO THAT IN RESPONSE TO A CHANGE IN THE HUMIDITY OF THE AMBIENT ENVIRONMENT SAID ELEMENT WILL DEFLECT LATERALLY, AND MEANS FOR COMPENSATING FOR THE LATERAL DEFLECTION OF SAID LAMINATIONS IN RESPONSE TO A CHANGE IN TEMPERATURE OF THE AMBIENT ENVIRONMENT, SAID LAST MENTIONED MEANS COMPRISING A THIRD LAMINATION ARRANGED IN SURFACE-TO-SURFACE CONTACT WITH AND SECURED TO ONE OF SAID TWO LAMINATIONS SO THAT THE THREE LAMINATIONS ARRANGED IN INTEGRAL WHOLE, SAID THIRD LAMINATION AND THE OTHER OF SAID TWO LAMINATIONS BEING DIMENSIONALLY PROPORTIONED RELATIVE TO EACH OTHER AND RELATIVE TO SAID ONE LAMINATION SO THAT CHANGES IN TEMPERATURE OF THE AMBIENT ENVIRONMENT DO NOT CAUSE SUBSTANTIAL LATERAL DEFLECTION OF SAID ONE LAMINATION.
Claim 2
Dependent Claim
158 words
A LAMINATED ELEMENT FOR SENSING CHANGES IN AMBIENT HUMIDITY CONDITIONS, SAID ELEMENT COMPRISING TWO LAMINATIONS ARRANGED IN SURFACE-TO-SURFACE CONTACT AND SECURED TOGETHER SO THAT THE LAMINATIONS ACTS AS AN INTEGRAL WHOLE, SAID LAMINATIONS BEING FORMED OF MATERIALS HAVING SUBSTANTIALLY DIFFERENT COEFFICIENTS OF LINEAR HYGROSCOPIC EXPANSIOPN SO THAT IN RESPONSE TO A CHANGE IN THE HUMIDITY OF THE AMBIENT ENVIRONMENT SAID ELEMENT WILL DEFLECT LATERALLY, AND MEANS FOR COMPENSATING FOR THE LATERAL DEFLECTION OF SAID LAMINATIONS IN RESPONSE TO A CHANGE IN TEMPERATURE OF THE AMBIENT ENVIRONMENT, SAID LAST MENTIONED MEANS COMPRISING A THIRD LAMINATION ARRANGED IN SURFACE-TO-SURFACE CONTACT WITH AND SECURED TO ONE OF SAID TWO LAMINATIONS SO THAT THE THREE LAMINATIONS ARRANGED IN INTEGRAL WHOLE, SAID THIRD LAMINATION AND THE OTHER OF SAID TWO LAMINATIONS BEING DIMENSIONALLY PROPORTIONED RELATIVE TO EACH OTHER AND RELATIVE TO SAID ONE LAMINATION SO THAT CHANGES IN TEMPERATURE OF THE AMBIENT ENVIRONMENT DO NOT CAUSE SUBSTANTIAL LATERAL DEFLECTION OF SAID ONE LAMINATION.
References Cited (Backward Citations)
US1993441A
Cited
US2573685A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |