US3167143A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Analytical balance
Assignee: General Electric Co
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Filing: 1963-08-22
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Granted: 1965-01-26
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Expires: 1983-08-22
Abstract
No abstract record available.
Inventors
- 👤 Robert H Savage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:15
CPC Classifications
G; G01; G01G; G01G1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
236 words
AN INSTRUMENT FOR WEIGHING COMPRISING IN COMBINATION: (A) A BASE HAVING A FLAT SURFACE FORMED THEREON, (1) SAID SURFACE HAVING A HIGH DEGREE OF REFLECTIVITY, (B) A TRANSPARENT BODY WITH THE OUTER SURFACE THEREOF FORMED AT LEAST IN PART IN A CONVEXLY CURVED ARC, (1) SAID BODY RESTING WITH THE CURVED PORTION THEREOF ON SAID SURFACE WHEREBY SAID BODY MAY ROCKED RELATIVE TO SAID SURFACE, (C) A LONGITUDINALLY EXTENDING MEMBER SUPPORTED ON AND CONNECTED TO SAID BODY, (1) SAID MEMBER EXTENDING AT RIGHT ANGLES TO AN AXIS ABOUT WHICH SAID BODY MAY BE ROCKED, (D) MEANS ATTACHED TO AT LEAST ONE END OF SAID MEMBER FOR RECEIVING MATERIAL TO BE WEIGHED, (E) MEANS MOUNTED OVER SAID BODY AND SAID SURFACE FOR VIEWING A MAGNIFIED FIELD FROM A DIRECTION PERPENDICULAR TO SAID SURFACE, (F) A LIGHT SOURCE, (G) MEANS FOR DIRECTING LIGHT FROM SAID SOURCE TO ILLUMINATE SAID FIELD, (1) SAID ILLUMINATED FIELD INCLUDING THE DARK CONTACT AREA BETWEEN SAID CURVED PORTION OF SAID BODY AND SAID SURFACE, (2) SAID CONTACT AREA HAVING REGULARLY SPACED THEREFROM THE IMAGE LINES OF A FRINGE SYSTEM, (3) SAID FRINGE LINES BEING SPACED A CALCULABLE DISTANCE APART, AND (H) DATAUM IMAGE MEANS SUPERIMPOSED ON SAID FIELD AGAINST WHICH TO OBSERVE AND REFER THE EXTENT OF DISPLACEMENT OF SAID CONTACT AREA AND FRINGE SYSTEM UPON TILTING OF SAID BODY AS THE RESULT OF DEPOSITING MATERIAL TO BE WEIGHED ON SAID RECEIVING MEANS.
Claim 2
Dependent Claim
236 words
AN INSTRUMENT FOR WEIGHING COMPRISING IN COMBINATION: (A) A BASE HAVING A FLAT SURFACE FORMED THEREON, (1) SAID SURFACE HAVING A HIGH DEGREE OF REFLECTIVITY, (B) A TRANSPARENT BODY WITH THE OUTER SURFACE THEREOF FORMED AT LEAST IN PART IN A CONVEXLY CURVED ARC, (1) SAID BODY RESTING WITH THE CURVED PORTION THEREOF ON SAID SURFACE WHEREBY SAID BODY MAY ROCKED RELATIVE TO SAID SURFACE, (C) A LONGITUDINALLY EXTENDING MEMBER SUPPORTED ON AND CONNECTED TO SAID BODY, (1) SAID MEMBER EXTENDING AT RIGHT ANGLES TO AN AXIS ABOUT WHICH SAID BODY MAY BE ROCKED, (D) MEANS ATTACHED TO AT LEAST ONE END OF SAID MEMBER FOR RECEIVING MATERIAL TO BE WEIGHED, (E) MEANS MOUNTED OVER SAID BODY AND SAID SURFACE FOR VIEWING A MAGNIFIED FIELD FROM A DIRECTION PERPENDICULAR TO SAID SURFACE, (F) A LIGHT SOURCE, (G) MEANS FOR DIRECTING LIGHT FROM SAID SOURCE TO ILLUMINATE SAID FIELD, (1) SAID ILLUMINATED FIELD INCLUDING THE DARK CONTACT AREA BETWEEN SAID CURVED PORTION OF SAID BODY AND SAID SURFACE, (2) SAID CONTACT AREA HAVING REGULARLY SPACED THEREFROM THE IMAGE LINES OF A FRINGE SYSTEM, (3) SAID FRINGE LINES BEING SPACED A CALCULABLE DISTANCE APART, AND (H) DATAUM IMAGE MEANS SUPERIMPOSED ON SAID FIELD AGAINST WHICH TO OBSERVE AND REFER THE EXTENT OF DISPLACEMENT OF SAID CONTACT AREA AND FRINGE SYSTEM UPON TILTING OF SAID BODY AS THE RESULT OF DEPOSITING MATERIAL TO BE WEIGHED ON SAID RECEIVING MEANS.
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) | 1968-01-26 | 1968-07-27 | 1969-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-26 | 1972-07-27 | 1973-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-26 | 1976-07-27 | 1977-01-26 | $7700.00 | Window Closed / Lapsed |