US3217309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatically adjustable monitor for pressurized cables
Assignee: Malor Manufacturing Inc
•
Filing: 1959-11-25
•
Granted: 1965-11-09
•
Expires: 1979-11-25
Abstract
No abstract record available.
Inventors
- 👤 Carl L Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:33
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/26; G01M3/28; G01M3/2838; G01M3/04; G01M3/16; G01M3/18; G01M3/181
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A PRESSURE MONITOR COMPRISING: A CYLINDER, A CLOSED CHAMBER IN ONE END OF SAID CYLINDER, A CAVITY IN THE OTHER END OF SAID CYLINDER, A DIAPHRAGM SEPARATING SAID CHAMBER FROM SAID CAVITY, A SINGLE POLE DOULE THROW SWITCH IN SAID CHAMBER, A PLUNGER IN SAID CHANGER COACTING AT ONE END WITH SAID DIAPHRAGM AND AT ITS OTHER END WITH SAID SWITCH, A FIRST LEAD ELECTRICALLY CONNECTED TO THE POLE OF SAID SWITCH, A SECOND ELECTRICAL LEAD, A LOW VALUE ESISTOR WIRED BETWEEN ONE CONTACT POINT OF SAID POLE OF SAID SWITCH AND SAID SECOND ELECTRICL LEAD, A HIGH VALUE RESISTOR WIRED BETWEEN THE OTHER CONTACT POINT OF SAID PLE OF SAID SWITCH AND SAID SECOND ELECTRICAL LEAD, MEANS CONNECTING SAID LEADS TO A CURRENT CARRYING SENSING DEVICE, MEANS PROVIDING CONSTANT PNEUMATIC PRESSURE IN SAID CHAMBER, AND MEANS PENUMATICALLY COMMUNICATING SAID CAVITY WITH A VESSEL TO BE MONITORED.
Claim 2
Dependent Claim
147 words
A PRESSURE MONITOR COMPRISING: A CYLINDER, A CLOSED CHAMBER IN ONE END OF SAID CYLINDER, A CAVITY IN THE OTHER END OF SAID CYLINDER, A DIAPHRAGM SEPARATING SAID CHAMBER FROM SAID CAVITY, A SINGLE POLE DOULE THROW SWITCH IN SAID CHAMBER, A PLUNGER IN SAID CHANGER COACTING AT ONE END WITH SAID DIAPHRAGM AND AT ITS OTHER END WITH SAID SWITCH, A FIRST LEAD ELECTRICALLY CONNECTED TO THE POLE OF SAID SWITCH, A SECOND ELECTRICAL LEAD, A LOW VALUE ESISTOR WIRED BETWEEN ONE CONTACT POINT OF SAID POLE OF SAID SWITCH AND SAID SECOND ELECTRICL LEAD, A HIGH VALUE RESISTOR WIRED BETWEEN THE OTHER CONTACT POINT OF SAID PLE OF SAID SWITCH AND SAID SECOND ELECTRICAL LEAD, MEANS CONNECTING SAID LEADS TO A CURRENT CARRYING SENSING DEVICE, MEANS PROVIDING CONSTANT PNEUMATIC PRESSURE IN SAID CHAMBER, AND MEANS PENUMATICALLY COMMUNICATING SAID CAVITY WITH A VESSEL TO BE MONITORED.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |