Patent US3762577A successfully refreshed from Google Patents.
US3762577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Raisin pick up machine
Assignee: University of California
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Filing: 1971-12-10
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Granted: 1973-10-02
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Expires: 1991-12-10
Abstract
Abstract A machine for picking up and recovering raisins lying on a paper strip on the ground has a carriage advancing along the strip to pick up the end of and tension the strip as the carriage advances. From the raised part of the tensioned strip, the raisins are brushed into a receiver. An elevating conveyor and presser wheel at the front of the machine aid in starting the paper strip into the tensioner.
Inventors
- 👤 H Olmo
- 👤 H Studer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:27
CPC Classifications
A; A01; A01D; A01D51/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
86 words
A raisin pick up machine for use with raisins disposed on an elongated strip of paper having spaced ends and lying on the ground comprising a carriage having a wheel engaging the ground, means for rotating said wheel to advance said carriage along the ground in the direction of the strip, means on said carriage for gripping said strip, and means on said carriage independent of said wheel rotating means for operating said gripping means to tension said strip between the ground and said gripping means.
Claim 2
Dependent Claim
86 words
A raisin pick up machine for use with raisins disposed on an elongated strip of paper having spaced ends and lying on the ground comprising a carriage having a wheel engaging the ground, means for rotating said wheel to advance said carriage along the ground in the direction of the strip, means on said carriage for gripping said strip, and means on said carriage independent of said wheel rotating means for operating said gripping means to tension said strip between the ground and said gripping means.
Claim 3
Dependent Claim
24 words
A device as in claim 1 in which said operating means is operable to regulate said tension independently of said advance of said carriage.
Claim 4
Dependent Claim
39 words
A device as in claim 1 in which said gripping means includes a pair of drums, and said operating means drives at least one of said drums at selected speeds independent of the speed of advance of said carriage.
Claim 5
Dependent Claim
22 words
A device as in claim 3 including a conveyor on said carriage in the vicinity of the discharge side of said drums.
Claim 6
Dependent Claim
49 words
A device as in claim 3 including a bar disposed parallel to said drums, and means on said carriage for pivotally housing said bar to swing away from and toward one of said drums for guiding said paper strip around said one of said drums and between said drums.
Claim 7
Dependent Claim
17 words
A devide as in claim 3 including a scraper in scraping relationship with one of said drums.
Claim 8
Dependent Claim
17 words
A device as in claim 3 including a brush positioned to brush raisins from said tensioned strip.
Claim 9
Dependent Claim
40 words
A device as in claim 1 including a belt conveyor mounted to extend forwardly of said carriage and to support said strip of paper between the ground and said gripping means, and means on said carriage for driving said conveyor.
Claim 10
Dependent Claim
21 words
A device as in claim 8 including a presser wheel adapted to rest on the upper run of said belt conveyor.
Claim 11
Dependent Claim
15 words
A device as in claim 9 including means for lifting and lowering said presser wheel.
Claim 12
Dependent Claim
15 words
A device as in claim 8 including means for lifting and lowering said belt conveyor.
Claim 13
Dependent Claim
27 words
A device as in claim 1 in which said operating means is effective to tension said strip sufficiently to lift said strip into a substantially catenary curve.
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) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |