US3743913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanism for electrically transmitting the speed of travel of a conveyor belt
Assignee: Merrick Scale Manufacturing Co
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Filing: 1972-02-24
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Granted: 1973-07-03
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Expires: 1992-02-24
Abstract
Abstract The speed of travel of a conveyor belt is electrically transmitted to a weighing system by a unitary mechanism mounted relative to the conveyor belt and including a friction wheel contacting the conveyor belt under pressure to be rotated at a speed proportional to the speed of travel of the conveyor belt and a pulser wheel rotated by the traction wheel in proximity to an induction coil generating digital speed signals.
Inventors
- 👤 E Rebucci
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:29
CPC Classifications
G; G01; G01P; G01P3/00; G01P3/42; G01P3/44; G01P3/48; G01P3/481; G01P3/488; G01B; G01B3/00; G01B3/12; G01P1/00; G01P1/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
107 words
Mechanism for electrically transmitting the speed of travel of a conveyor belt of a weighing system, comprising a first casing mounted relative to the conveyor belt, a pulser wheel rotatably mounted in the first casing, a second casing pivotally supported by the first casing, a traction wheel rotatably supported by the second casing, a train of gears of predetermined ratio enclosed by the second casing and operatively connecting the traction wheel to the pulser wheel, and an induction coil supported by the first casing in proximity to the periphery of the pulser wheel to generate digital speed signals representing the speed of travel of the conveyor belt.
Claim 2
Dependent Claim
107 words
Mechanism for electrically transmitting the speed of travel of a conveyor belt of a weighing system, comprising a first casing mounted relative to the conveyor belt, a pulser wheel rotatably mounted in the first casing, a second casing pivotally supported by the first casing, a traction wheel rotatably supported by the second casing, a train of gears of predetermined ratio enclosed by the second casing and operatively connecting the traction wheel to the pulser wheel, and an induction coil supported by the first casing in proximity to the periphery of the pulser wheel to generate digital speed signals representing the speed of travel of the conveyor belt.
Claim 3
Dependent Claim
39 words
Mechanism for electrically transmitting the speed of travel of a conveyor belt as claimed in claim 1, a spring anchored to the first and second casings and arranged to maintain the traction wheel in contact with the conveyor belt.
Claim 4
Dependent Claim
55 words
Mechanism for electrically transmitting the speed of travel of a conveyor belt as claimed in claim 2, wherein the first casing is provided with a tubular protuberance for pivotally supporting the second casing and confining the spring, and a shaft rotatably supported in the protuberance and connecting the train of gears to the pulser wheel.
Claim 5
Dependent Claim
44 words
Mechanism for electrically transmitting the speed of travel of a conveyor belt as claimed in claim 2, wherein the first casing is provided with an annular series of spaced holes for anchoring one end of the spring to vary the tension of the spring.
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) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |