US3108649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weighing machines
Assignee: Individual
•
Filing: 1961-01-19
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Granted: 1963-10-29
•
Expires: 1981-01-19
Abstract
No abstract record available.
Inventors
- 👤 Hamilton Thomas William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:10
CPC Classifications
G; G01; G01G; G01G5/00; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/785
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A PNEUMATIC PRESSURE TRANSMITTING DEVICE FOR TRANSMITTING A PRESSURE WHICH IS IN LINEAR RELATION TO A VARIABLE APPLIED FORCE, COMPRISING A SOURCE OF CONSTANT FLUID PRESSURE GREATER THAN SAID PRESSURE TO BE TRANSMITTED, A PRESSURE CHAMBER, A PRESSURE FLUID CONDUCTING INLET DUCT CONNECTING SAID SOURCE OF PRESSURE TO SAID CHAMBER, PRESSURE FLUID THROTTLING MEANS IN SAID INLET DUCT, SAID CHAMBER HAVING A PRESSURE RELIEF OPENING AND A SEAT SURROUNDING SAID OPENING, A COVER ENGAGEABLE WITH SAID SEAT TO CLOSE SAID OPENING, SAID COVER BEING SUBJECT TO THE APPLICATION OF A VARIABLE FORCE IN A DIRECTION OPPOSING THE PRESSURE IN SAID CHAMBER ACTING TO DISENGAGE SAID COVER FROM SAID SEAT, AND A PRESSURE FLUID CONDUCTING OUTLET DUCT IN COMMUNICATION WITH SAID INLET DUCT DOWNSTREAM OF SAID THROTTLING MEANS FOR TAKING OFF PRESSURE MEASURED IN SAID PRESSURE CHAMBER TO A PRESSURE RESPONSIVE DEVICE.
Claim 2
Dependent Claim
141 words
A PNEUMATIC PRESSURE TRANSMITTING DEVICE FOR TRANSMITTING A PRESSURE WHICH IS IN LINEAR RELATION TO A VARIABLE APPLIED FORCE, COMPRISING A SOURCE OF CONSTANT FLUID PRESSURE GREATER THAN SAID PRESSURE TO BE TRANSMITTED, A PRESSURE CHAMBER, A PRESSURE FLUID CONDUCTING INLET DUCT CONNECTING SAID SOURCE OF PRESSURE TO SAID CHAMBER, PRESSURE FLUID THROTTLING MEANS IN SAID INLET DUCT, SAID CHAMBER HAVING A PRESSURE RELIEF OPENING AND A SEAT SURROUNDING SAID OPENING, A COVER ENGAGEABLE WITH SAID SEAT TO CLOSE SAID OPENING, SAID COVER BEING SUBJECT TO THE APPLICATION OF A VARIABLE FORCE IN A DIRECTION OPPOSING THE PRESSURE IN SAID CHAMBER ACTING TO DISENGAGE SAID COVER FROM SAID SEAT, AND A PRESSURE FLUID CONDUCTING OUTLET DUCT IN COMMUNICATION WITH SAID INLET DUCT DOWNSTREAM OF SAID THROTTLING MEANS FOR TAKING OFF PRESSURE MEASURED IN SAID PRESSURE CHAMBER TO A PRESSURE RESPONSIVE DEVICE.
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) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |