Patent US3075390A successfully refreshed from Google Patents.
US3075390A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature compensating connecting linkage
Assignee: Ametek Inc
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Filing: 1959-06-18
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Granted: 1963-01-29
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Expires: 1979-06-18
Abstract
No abstract record available.
Inventors
- 👤 Leonard R Sheppard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:00
CPC Classifications
G; G01; G01L; G01L7/00; G01L7/02; G01L7/04; G01L7/048
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
IN A GUAGE HAVING A PRESSURE RESPONSIVE MEANS WITH A MOVABLE TIP AND AMPLIFYING LINKAGE MEANS FOR ACTUATING AN INDICATOR, TEMPERATURE COMPENSATING LINK MEANS CONNECTING THE MOVABLE TIP OF SAID RESPONSIVE MEANS AND SAID AMPLIFYING LINKAGE MEANS, SAID COMPENSATING LINK MEANS INCLUDING AT LEAST A PAIR OF SIDE-BY-SIDE RELATIVELY RIGID LONGITUDINALLY EXTENDING BARS OF DIFFERENT TEMPERATURE COEFFICIENTS OF EXPANSION THE LONGITUDINAL AXES OF SAID BARS BEING DISPOSED IN A PREDETERMINED RELATION TO EACH OTHER, MEANS FOR CONNECTING SAID BARS TO ONE ANOTHER TO SELECTIVELY DETERMINE THE EFFECTIVE LENGTH OF EACH OF SAID BARS IN THE TOTAL EFFECTIVE LENGTH OF SAID LINK MEANS, SAID LINK MEANS BEING EFFECTUALLY OPERABLY EXPANSIBLE AND CONTRACTIBLE ONLY IN THE DIRECTION OF THE LONGITUDINAL AXIS THEREOF AND MEANS FOR MAINTAINING SAID PREDETERMINED RELATION SUBSTANTIALLY CONSTANT DURING TEMPERATURE CHANGES.
Claim 2
Dependent Claim
132 words
IN A GUAGE HAVING A PRESSURE RESPONSIVE MEANS WITH A MOVABLE TIP AND AMPLIFYING LINKAGE MEANS FOR ACTUATING AN INDICATOR, TEMPERATURE COMPENSATING LINK MEANS CONNECTING THE MOVABLE TIP OF SAID RESPONSIVE MEANS AND SAID AMPLIFYING LINKAGE MEANS, SAID COMPENSATING LINK MEANS INCLUDING AT LEAST A PAIR OF SIDE-BY-SIDE RELATIVELY RIGID LONGITUDINALLY EXTENDING BARS OF DIFFERENT TEMPERATURE COEFFICIENTS OF EXPANSION THE LONGITUDINAL AXES OF SAID BARS BEING DISPOSED IN A PREDETERMINED RELATION TO EACH OTHER, MEANS FOR CONNECTING SAID BARS TO ONE ANOTHER TO SELECTIVELY DETERMINE THE EFFECTIVE LENGTH OF EACH OF SAID BARS IN THE TOTAL EFFECTIVE LENGTH OF SAID LINK MEANS, SAID LINK MEANS BEING EFFECTUALLY OPERABLY EXPANSIBLE AND CONTRACTIBLE ONLY IN THE DIRECTION OF THE LONGITUDINAL AXIS THEREOF AND MEANS FOR MAINTAINING SAID PREDETERMINED RELATION SUBSTANTIALLY CONSTANT DURING TEMPERATURE CHANGES.
References Cited (Backward Citations)
US1760878A
Cited
US2387909A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |