Patent US3131780A successfully refreshed from Google Patents.
US3131780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weighing apparatus
Assignee: Individual
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Filing: 1961-01-23
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Granted: 1964-05-05
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Expires: 1981-01-23
Abstract
No abstract record available.
Inventors
- 👤 Kenneth C Yarborough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:49
CPC Classifications
G; G01; G01G; G01G13/00; Y; Y10; Y10S; Y10S177/00; Y10S177/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
219 words
IN A WEIGHING APPARATUS, A SCALE HAVING A BALANCE BEAM, MEANS FOR ADJUSTING THE SCALE SO THAT THE BALANCE BEAM WILL ASSUME A BALANCED POSITION WHEN THE SCALE HAS RECEIVED A PREDETERMINED WEIGHT OF MATERIAL, BULK AND DRIBBLE CONTROL MEANS PROVIDING BULK AND DRIBBLE FLOW OF MATERIAL TO BE WEIGHED BY THE SCALE, A LIGHT SOURCE, A PHOTOSENSITIVE ELEMENT ADAPTED TO RECEIVE LIGHT FROM SAID LIGHT SOURCE, AN OPERATING VANE CARRIED BY SAID BALANCE BEAM AND ADAPTED TO CONTROL THE PASSAGE OF LIGHT FROM SAID LIGHT SOURCE TO SAID PHOTOSENSITIVE ELEMENT, MEANS FOR PRE-LOADING SAID BEAM, AND CIRCUIT MEANS CONNECTING SAID PRE-LOADING MEANS AND SAID PHOTOSENSITIVE ELEMENT TO SAID BULK AND DRIBBLE CONTROL MEANS, SAID CIRCUIT MEANS INCLUDING START MEANS FOR STARTING OPERATION OF THE WEIGHTING APPARATUS, SAID CIRCUIT MEANS ALSO INCLUDING MEANS OPERATED BY MOVEMENT OF THE BALANCE BEAM TOWARD A BALANCED POSITION FOR TERMINATING BULK FLOW OF MATERIAL FROM SAID BULK AND DRIBBLE CONTROL MEANS, SAID CIRCUIT MEANS ALSO INCLUDING MEANS FOR TERMINATING THE DRIBBLE FLOW OF MATERIAL FROM SAID BULK AND DRIBBLE CONTROL MEANS WHEN SAID VANE AFFECTS THE PASSAGE OF LIGHT TO SAID PHOTOSENSITIVE ELEMENT AS THE BALANCE BEAM ASSUMES A BALANCED POSITION, SAID PRELOADING MEANS BEING OUT OF ENGAGEMENT WITH SAID BALANCE BEAM WHEN THE BALANCED POSITION OF THE BALANCE BEAM IS BEING DETERMINED.
Claim 2
Dependent Claim
219 words
IN A WEIGHING APPARATUS, A SCALE HAVING A BALANCE BEAM, MEANS FOR ADJUSTING THE SCALE SO THAT THE BALANCE BEAM WILL ASSUME A BALANCED POSITION WHEN THE SCALE HAS RECEIVED A PREDETERMINED WEIGHT OF MATERIAL, BULK AND DRIBBLE CONTROL MEANS PROVIDING BULK AND DRIBBLE FLOW OF MATERIAL TO BE WEIGHED BY THE SCALE, A LIGHT SOURCE, A PHOTOSENSITIVE ELEMENT ADAPTED TO RECEIVE LIGHT FROM SAID LIGHT SOURCE, AN OPERATING VANE CARRIED BY SAID BALANCE BEAM AND ADAPTED TO CONTROL THE PASSAGE OF LIGHT FROM SAID LIGHT SOURCE TO SAID PHOTOSENSITIVE ELEMENT, MEANS FOR PRE-LOADING SAID BEAM, AND CIRCUIT MEANS CONNECTING SAID PRE-LOADING MEANS AND SAID PHOTOSENSITIVE ELEMENT TO SAID BULK AND DRIBBLE CONTROL MEANS, SAID CIRCUIT MEANS INCLUDING START MEANS FOR STARTING OPERATION OF THE WEIGHTING APPARATUS, SAID CIRCUIT MEANS ALSO INCLUDING MEANS OPERATED BY MOVEMENT OF THE BALANCE BEAM TOWARD A BALANCED POSITION FOR TERMINATING BULK FLOW OF MATERIAL FROM SAID BULK AND DRIBBLE CONTROL MEANS, SAID CIRCUIT MEANS ALSO INCLUDING MEANS FOR TERMINATING THE DRIBBLE FLOW OF MATERIAL FROM SAID BULK AND DRIBBLE CONTROL MEANS WHEN SAID VANE AFFECTS THE PASSAGE OF LIGHT TO SAID PHOTOSENSITIVE ELEMENT AS THE BALANCE BEAM ASSUMES A BALANCED POSITION, SAID PRELOADING MEANS BEING OUT OF ENGAGEMENT WITH SAID BALANCE BEAM WHEN THE BALANCED POSITION OF THE BALANCE BEAM IS BEING DETERMINED.
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) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |