US3673700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coffee roasting plant with automatic sampling arrangement
Assignee: Probat-Werke Von Gimborn and Co KG
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Filing: 1970-08-19
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Granted: 1972-07-04
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Expires: 1990-08-19
Abstract
Abstract The several roasting ovens of a coffee roasting plant are equipped with mechanical samplers connected by pneumatic conveyors to a common testing station. Electronic controls operate the samplers in timed sequence to withdraw samples for testing which are thereafter returned automatically to the same oven by a distributor at the testing station and pneumatic conveyors, the distributor being operated by the electronic controls. Withdrawal of samples may be automatic or semiautomatic. Special design of samplers prevents mixing of material sequentially withdrawn from the same oven.
Inventors
- 👤 Roland Schabbel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:40
CPC Classifications
A; A23; A23N; A23N12/00; A23N12/08
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
216 words
A coffee roasting plant comprising, in combination: a. roasting means for roasting green coffee, said roasting means including a container adapted to contain said coffee during said roasting thereof; b. sampling means for withdrawing a sample of the coffee being roasted in said roasting means, said sampling means including 1. a tubular shell having an axis, and 2. a slide movable axially in said shell between a charging position and a discharging position, 3. said slide being formed with a chamber communicating with said container in said charging position for receiving a sample to be withdrawn; c. a testing station remote from said roasting means; d. first conveying means communicating with said chamber in said discharging position of said slide for conveying the sample withdrawn from said roasting means to said testing station, said testing station including 1. holding means for holding the conveyed sample for a period sufficient to permit testing of the sample, and 2. control means for controlling the operation of said sampling means by moving said slide between said positions thereof; e. second conveying means for returning the tested sample from said holding means to said roasting means; and f. means for passing a stream of air through said chamber toward said first conveying means in said discharging position of said slide.
Claim 2
Dependent Claim
216 words
A coffee roasting plant comprising, in combination: a. roasting means for roasting green coffee, said roasting means including a container adapted to contain said coffee during said roasting thereof; b. sampling means for withdrawing a sample of the coffee being roasted in said roasting means, said sampling means including 1. a tubular shell having an axis, and 2. a slide movable axially in said shell between a charging position and a discharging position, 3. said slide being formed with a chamber communicating with said container in said charging position for receiving a sample to be withdrawn; c. a testing station remote from said roasting means; d. first conveying means communicating with said chamber in said discharging position of said slide for conveying the sample withdrawn from said roasting means to said testing station, said testing station including 1. holding means for holding the conveyed sample for a period sufficient to permit testing of the sample, and 2. control means for controlling the operation of said sampling means by moving said slide between said positions thereof; e. second conveying means for returning the tested sample from said holding means to said roasting means; and f. means for passing a stream of air through said chamber toward said first conveying means in said discharging position of said slide.
Claim 3
Dependent Claim
15 words
a slide movable axially in said shell between a charging position and a discharging position,
Claim 4
Dependent Claim
15 words
a slide movable axially in said shell between a charging position and a discharging position,
Claim 5
Dependent Claim
11 words
discharge means for discharging the tested sample after said period, and
Claim 6
Dependent Claim
11 words
discharge means for discharging the tested sample after said period, and
Claim 7
Dependent Claim
59 words
control means for controlling the operation of said sampling means by moving said slide between said positions thereof; e. second conveying means for returning the tested sample from said holding means to said roasting means; and f. means for passing a stream of air through said chamber toward said first conveying means in said discharging position of said slide.
Claim 8
Dependent Claim
59 words
control means for controlling the operation of said sampling means by moving said slide between said positions thereof; e. second conveying means for returning the tested sample from said holding means to said roasting means; and f. means for passing a stream of air through said chamber toward said first conveying means in said discharging position of said slide.
Claim 9
Dependent Claim
49 words
A coffee roasting plant comprising, in Combination: a. roasting means for roasting green coffee, said roasting means including a container adapted to contain said coffee during said roasting thereof; b. sampling means for withdrawing a sample of the coffee being roasted in said roasting means, said sampling means including
Claim 10
Dependent Claim
49 words
A coffee roasting plant comprising, in Combination: a. roasting means for roasting green coffee, said roasting means including a container adapted to contain said coffee during said roasting thereof; b. sampling means for withdrawing a sample of the coffee being roasted in said roasting means, said sampling means including
Claim 11
Dependent Claim
15 words
a slide movable axially in said shell between a charging position and a discharging position,
Claim 12
Dependent Claim
15 words
a slide movable axially in said shell between a charging position and a discharging position,
Claim 13
Dependent Claim
41 words
control means for controlling the operation of said sampling means by moving said slide between said positions thereof; e. second conveying means for returning the tested sample from said holding means to said roasting means; f. sweeping means on said slide,
Claim 14
Dependent Claim
41 words
control means for controlling the operation of said sampling means by moving said slide between said positions thereof; e. second conveying means for returning the tested sample from said holding means to said roasting means; f. sweeping means on said slide,
Claim 15
Dependent Claim
38 words
A plant as set forth in claim 2, wherein said conveying means each include an elongated conduit extending between said testing station and said roasting means, and means for generating a longitudinal stream of air in said conduit.
Claim 16
Dependent Claim
63 words
said slide being formed with a chamber communicating with said container in said charging position for receiving a sample to be withdrawn; c. a testing station remote from said roasting means; d. first conveying means communicating with said chamber in said discharging position of said slide for conveying the sample withdrawn from said roasting means to said testing station, said testing station including
Claim 17
Dependent Claim
63 words
said slide being formed with a chamber communicating with said container in said charging position for receiving a sample to be withdrawn; c. a testing station remote from said roasting means; d. first conveying means communicating with said chamber in said discharging position of said slide for conveying the sample withdrawn from said roasting means to said testing station, said testing station including
Claim 18
Dependent Claim
53 words
control means for controlling the operation of said sampling means; e. a plurality of second conveying means respectively connecting said testing station to said roasting ovens for returning the tested samples to said roasting means; and f. connecting means for connecting said holding means with each of said first and second conveying means.
Claim 19
Dependent Claim
53 words
control means for controlling the operation of said sampling means; e. a plurality of second conveying means respectively connecting said testing station to said roasting ovens for returning the tested samples to said roasting means; and f. connecting means for connecting said holding means with each of said first and second conveying means.
Claim 20
Dependent Claim
63 words
said slide being formed with a chamber communicating with said container in said charging position for receiving a sample to be withdrawn; c. a testing station remote from said roasting means; d. first conveying means communicating with said chamber in said discharging position of said slide for conveying the sample withdrawn from said roasting means to said testing station, said testing station including
Claim 21
Dependent Claim
63 words
said slide being formed with a chamber communicating with said container in said charging position for receiving a sample to be withdrawn; c. a testing station remote from said roasting means; d. first conveying means communicating with said chamber in said discharging position of said slide for conveying the sample withdrawn from said roasting means to said testing station, said testing station including
Claim 22
Dependent Claim
33 words
A plant as set forth in claim 2, wherein said holding means include an open container adapted to receive said conveyed sample, and discharge means for discharging the tested sample after said period.
Claim 23
Dependent Claim
87 words
A coffee roasting plant comprising, in combination: a. roasting means for roasting green coffee and including a plurality of roasting ovens; b. a plurality of sampling means respectively associated with said ovens for withdrawing samples of the coffee being roasted from the associated roasting ovens; c. a testing station remote from said roasting means; d. a plurality of first conveying means respectively connecting said sampling means to said testing station for conveying the samples withdrawn from said roasting means to said testing station, said testing station including
Claim 24
Dependent Claim
87 words
A coffee roasting plant comprising, in combination: a. roasting means for roasting green coffee and including a plurality of roasting ovens; b. a plurality of sampling means respectively associated with said ovens for withdrawing samples of the coffee being roasted from the associated roasting ovens; c. a testing station remote from said roasting means; d. a plurality of first conveying means respectively connecting said sampling means to said testing station for conveying the samples withdrawn from said roasting means to said testing station, said testing station including
Claim 25
Dependent Claim
26 words
A plant as set forth in claim 5, wherein said connecting means include distributor means for alternatively connecting said holding means with said second conveying means.
Claim 26
Dependent Claim
71 words
A plant as set forth in claim 6, wherein said control means include first operating means for sequentially operating said sampling means for thereby causing respective samples to be conveyed sequentially to said testing station by said first conveying means, and second operating means operating said distributor means for returning each sample from said testing station to the roasting oven from which it was withdrawn through the corresponding second conveying means.
Claim 27
Dependent Claim
28 words
A plant as set forth in claim 7, wherein said control means further include electrically operated means for actuating said first and second operating means in timed sequence.
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) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |