Patent US3276525A successfully refreshed from Google Patents.
US3276525A
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Method and apparatus for dynamically weighing objects in motion
Assignee: Canadian National Railway Co
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Filing: 1964-06-15
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Granted: 1966-10-04
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Expires: 1984-06-15
Abstract
No abstract record available.
Inventors
- 👤 George R Cass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:12
CPC Classifications
H; H03; H03M; H03M1/00; G; G01; G01G; G01G19/00; G01G19/02; G01G19/04; G01G19/045; G01G19/047; G01G3/00; G01G3/12; G01G3/14; G01G3/142; G01G3/147; B; B60; B60T; B60T2250/00; B60T2250/02; H03M1/12; H03M1/20; Y; Y10; Y10S; Y10S177/00; Y10S177/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
A METHOD OF WEIGHING A MOVING BOUNCING OBJECT COMPRISING THE STEPS OF SUPPORTING SAID OBJECT ON LOAD CELL MOUNTED SCALE MEANS DURING A PORTION OF ITS MOVEMENT, SAID LOAD CELLS BEING ENERGIZED BY A POWER SUPPLY AND PRODUCING AN ELECTRICAL OUTPUT PROPORTIONAL TO THE INSTANTANEOUS LOADS IMPOSED THEREON BY SAID MOVING OBJECT, SAID OUTPUT COMPRISING A STEADY SIGNAL PROPORTIONAL TO THE STATIC WEIGHT OF SAID OBJECT PLUS OSCILLATORY COMPONENTS SUPERIMPOSED THEREON, THEN PASSING SAID OUTPUT INTO A FILTER FOR A PERIOD OF APPROXIMATELY 2 SECONDS WHICH ATTENUATES THE AMPLITUDES OF THE OSCILLATORY COMPONENTS TO 1/13 OF THEIR ORIGINAL VALUES AND BUILDS UP TO WITHIN 1.74X10-4 OF THE STATIC WEIGHT COMPONENT OF SAID OBJECT, THEN INTEGRATING THE OUTPUT FROM SAID FILTER IN INTEGRATING MEANS FOR A PERIOD OF APPROXIMATELY 1 SECOND WHICH ATTENUATES THE AMPLITUDES OF SAID OSCILLATORY COMPONENTS BY A FURTHER 1/20, THEN READING THE OUTPUT FROM SAID INTEGRATING MEANS ON A READ-OUT MEANS WHICH INDICATES THE WEIGHT OF SAID OBJECT TO AN ACCURACY OF WITHIN +0.15% OF THE STATIC WEIGHT, SAID WEIGHT INDICATION BEING STABILIZED AGAINST VARIATIONS IN SAID POWER SUPPLY.
Claim 2
Independent Claim
182 words
A METHOD OF WEIGHING A MOVING BOUNCING OBJECT COMPRISING THE STEPS OF SUPPORTING SAID OBJECT ON LOAD CELL MOUNTED SCALE MEANS DURING A PORTION OF ITS MOVEMENT, SAID LOAD CELLS BEING ENERGIZED BY A POWER SUPPLY AND PRODUCING AN ELECTRICAL OUTPUT PROPORTIONAL TO THE INSTANTANEOUS LOADS IMPOSED THEREON BY SAID MOVING OBJECT, SAID OUTPUT COMPRISING A STEADY SIGNAL PROPORTIONAL TO THE STATIC WEIGHT OF SAID OBJECT PLUS OSCILLATORY COMPONENTS SUPERIMPOSED THEREON, THEN PASSING SAID OUTPUT INTO A FILTER FOR A PERIOD OF APPROXIMATELY 2 SECONDS WHICH ATTENUATES THE AMPLITUDES OF THE OSCILLATORY COMPONENTS TO 1/13 OF THEIR ORIGINAL VALUES AND BUILDS UP TO WITHIN 1.74X10-4 OF THE STATIC WEIGHT COMPONENT OF SAID OBJECT, THEN INTEGRATING THE OUTPUT FROM SAID FILTER IN INTEGRATING MEANS FOR A PERIOD OF APPROXIMATELY 1 SECOND WHICH ATTENUATES THE AMPLITUDES OF SAID OSCILLATORY COMPONENTS BY A FURTHER 1/20, THEN READING THE OUTPUT FROM SAID INTEGRATING MEANS ON A READ-OUT MEANS WHICH INDICATES THE WEIGHT OF SAID OBJECT TO AN ACCURACY OF WITHIN +0.15% OF THE STATIC WEIGHT, SAID WEIGHT INDICATION BEING STABILIZED AGAINST VARIATIONS IN SAID POWER SUPPLY.
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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) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |