US3089519A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Load cells for hydraulic weighing machines
Assignee: AH Emery Co
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Filing: 1961-08-17
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Granted: 1963-05-14
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Expires: 1981-08-17
Abstract
No abstract record available.
Inventors
- 👤 Chester D Bradley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:12
CPC Classifications
G; G01; G01G; G01G5/00; G01G5/003; G01L; G01L1/00; G01L1/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
24 words
A TENSION RESPONSIVE FLUID PRESSURE LOAD CELL COMPRISING IN COMBINATION A. A STATIONARY BLOCK HAVING A RECESS FORMING A CYLINDER IN ITS BOTTOM SURFACE,
Claim 2
Dependent Claim
24 words
A TENSION RESPONSIVE FLUID PRESSURE LOAD CELL COMPRISING IN COMBINATION A. A STATIONARY BLOCK HAVING A RECESS FORMING A CYLINDER IN ITS BOTTOM SURFACE,
Claim 3
Dependent Claim
121 words
MEANS FORMING A FLUID PASSAGE EXTENDING WITHIN SAID BLOCK AXIALLY FROM THE TOP OF SAID CYLINDER AND LATERALLY TO AN EXTERNAL SURFACE OF SAID BLOCK AND OF SAID CELL FOR DIRECT CONNECTION WITH AN EXTERNAL FLUID PRESSURE LINE, B. A PISTON INTERFITTING IN SAID CYLINDER AND AXIALLY MOVABLE THEREIN, C. A DIAPHRAGM SECURED TO SAID BLOCK AND OVERLYING SAID PISTON TO FORM A FLUID PRESSURE CHAMBER BETWEEN SAID CYLINDER AND SAID PISTON, D. A LOAD BEARING MEMBER MOVABLE WITH RESPECT TO SAID STATIONARY BLOCK ALONG THE AXIS OF SAID CYLINDER, AND E. CONNECTING MEMBERS CONNECTED BETEEN SAID LOAD BEARING MEMBER AND SAID PISTON TO TRANSFER TO SAID PISTON THE AXIAL MOTION A LOAD BEING MEASURED IMPARTS TO SAID LOAD BEARING MEMBER
Claim 4
Dependent Claim
121 words
MEANS FORMING A FLUID PASSAGE EXTENDING WITHIN SAID BLOCK AXIALLY FROM THE TOP OF SAID CYLINDER AND LATERALLY TO AN EXTERNAL SURFACE OF SAID BLOCK AND OF SAID CELL FOR DIRECT CONNECTION WITH AN EXTERNAL FLUID PRESSURE LINE, B. A PISTON INTERFITTING IN SAID CYLINDER AND AXIALLY MOVABLE THEREIN, C. A DIAPHRAGM SECURED TO SAID BLOCK AND OVERLYING SAID PISTON TO FORM A FLUID PRESSURE CHAMBER BETWEEN SAID CYLINDER AND SAID PISTON, D. A LOAD BEARING MEMBER MOVABLE WITH RESPECT TO SAID STATIONARY BLOCK ALONG THE AXIS OF SAID CYLINDER, AND E. CONNECTING MEMBERS CONNECTED BETEEN SAID LOAD BEARING MEMBER AND SAID PISTON TO TRANSFER TO SAID PISTON THE AXIAL MOTION A LOAD BEING MEASURED IMPARTS TO SAID LOAD BEARING MEMBER
Claim 5
Dependent Claim
25 words
SO THAT SAID PISTON MOVES TO CHANGE THE VOLUME OF SAID PRESSURE CHAMBER IN RESPONSE TO THE AXIAL FORCE APPLIED TO SAID LOAD BEARING MEMBER.
Claim 6
Dependent Claim
25 words
SO THAT SAID PISTON MOVES TO CHANGE THE VOLUME OF SAID PRESSURE CHAMBER IN RESPONSE TO THE AXIAL FORCE APPLIED TO SAID LOAD BEARING MEMBER.
References Cited (Backward Citations)
US3004558A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |