US3821833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for supplying cards by means of a pneumatic flock transporting system
Assignee: Maschinenfabrik Rieter AG
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Filing: 1971-05-26
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Granted: 1974-07-02
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Expires: 1991-05-26
Abstract
Abstract Apparatus for supplying at least one card by means of a pneumatic flock transporting system, wherein loosened fiber flocks are conveyed by means of a carrier air stream through a transport duct and are separated at the region of the card from the carrier air stream which is at overpressure into a filling chute of the card connected with the transport duct. The invention contemplates adjusting the moisture content within the transport duct so as to be below condensation, and which relies upon monitoring the moisture content of the carrier air stream within the transport duct, and adding a quantity of steam which is free of water droplets to the carrier air stream charged with the fiber flocks in an amount necessary to adjust the moisture content of the carrier air stream so as to be below the point of condensation.
Inventors
- 👤 R Wildbolz
- 👤 C Grundler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:43
CPC Classifications
D; D01; D01G; D01G99/00; D01G99/005
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
268 words
In combination with at least one card having a feed chute, a pneumatic flock transporting system for carrying separated fiber flocks to such feed chute of the card, said fiber flocks being transported by means of a carrier air stream through a transport duct of the transporting system to such feed chute, the improvement comprising: a. a connecting arrangement defining a chamber having at least one opening coMmunicating with the transport duct charged with fiber flocks upstream of the feed chute of the card, said chamber adapted to contain a small quantity of air free of fiber flocks separate to the carrier air stream; b. means for supplying water in a fluid state to the chamber to disperse said water into the small quantity of air contained in the chamber and pass moisture-laden air free of water droplets into the transport duct charged with fiber flocks; c. measuring feeler means provided in said transport duct at a point located downstream of the point where the moisture-laden air is passed into the transport duct for measuring the moisture content of the carrier air stream and the fiber flocks; d. a control device operatively connected with said measuring feeler means and with said water supply means to control the supply of water in the fluid state into said chamber in dependence on the moisture content of the carrier air stream and the fiber flocks in the transport duct; and e. ventilator means in said transport duct, and wherein the moisture-laden air in said chamber is introduced into said transport duct at least partially under the action of said ventilator means.
Claim 2
Dependent Claim
268 words
In combination with at least one card having a feed chute, a pneumatic flock transporting system for carrying separated fiber flocks to such feed chute of the card, said fiber flocks being transported by means of a carrier air stream through a transport duct of the transporting system to such feed chute, the improvement comprising: a. a connecting arrangement defining a chamber having at least one opening coMmunicating with the transport duct charged with fiber flocks upstream of the feed chute of the card, said chamber adapted to contain a small quantity of air free of fiber flocks separate to the carrier air stream; b. means for supplying water in a fluid state to the chamber to disperse said water into the small quantity of air contained in the chamber and pass moisture-laden air free of water droplets into the transport duct charged with fiber flocks; c. measuring feeler means provided in said transport duct at a point located downstream of the point where the moisture-laden air is passed into the transport duct for measuring the moisture content of the carrier air stream and the fiber flocks; d. a control device operatively connected with said measuring feeler means and with said water supply means to control the supply of water in the fluid state into said chamber in dependence on the moisture content of the carrier air stream and the fiber flocks in the transport duct; and e. ventilator means in said transport duct, and wherein the moisture-laden air in said chamber is introduced into said transport duct at least partially under the action of said ventilator means.
Claim 3
Dependent Claim
75 words
The combination as defined in claim 1 wherein said chamber is a by-pass duct having one end opening into said transport duct through which a small quantity of air free of fiber flocks may be withdrawn from the carrier air stream, and the other end opening into said transport duct downstream of said one end through which the small quantity of air may be reintroduced into the carrier air stream after having water dispersed therein.
Claim 4
Dependent Claim
29 words
The combination as defined in claim 1 wherein said chamber includes an outlet opening into said transport duct and is otherwise closed with respect to the carrier air stream.
Claim 5
Dependent Claim
39 words
The combination as defined in claim 1, further including a machine for delivering fiber flocks to said pneumatic flock transporting system, said connecting arrangement being arranged between said fiber flock supplying machine and the feed chute of the card.
Claim 6
Dependent Claim
45 words
The combination as defined in claim 4, wherein said transport duct defines a common transport duct for a number of cards connected therewith, said connecting arrangement being connected upstream of the first feed chute of the series of cards coupled with said common transport duct.
Claim 7
Dependent Claim
18 words
The combination as defined in claim 4, further including heating means arranged at said pneumatic flock transporting duct.
Claim 8
Dependent Claim
47 words
The combination as defined in claim 3, wherein said ventilator means has a pressure side and a suction side arranged in said transport duct, said connecting arrangement being connected to a section of said transport duct which is connected with the suction side of said ventilator means.
Claim 9
Dependent Claim
39 words
The combination as defined in claim 1, wherein said ventilator means has a pressure side and a suction side connecting arrangement being located in a section of the transport duct connected with the pressure side of said ventilator means.
Claim 10
Dependent Claim
24 words
The combination as defined in claim 1, wherein said connecting arrangement comprises a mechanism for conditioning a portion of the quantity of carrier air.
Claim 11
Dependent Claim
54 words
The combination as defined in claim 9, wherein said chamber is a by-pass channel arrangement having suction and delivery openings communicating with a section of said transport duct, said ventilator means having a pressure side and suction side, said section of said transport duct being connected with the suction side of said ventilator means.
Claim 12
Dependent Claim
84 words
The combination as defined in claim 9, wherein said chamber is a by-pass channel arrangement having suction openings connected to a section of said transport duct, said ventilator means having a pressure side and a suction side arranged at said transport duct, said section of said transport duct being connected with the suction side of said ventilator means, said by-pass channel arrangement having a delivery opening connected with a further section of said transport duct aRranged at the pressure side of said ventilator means.
Claim 13
Dependent Claim
16 words
The combination as defined in claim 1, wherein said water supplying means includes injection nozzle means.
Claim 14
Dependent Claim
22 words
The combination as defined in claim 12, wherein said connecting arrangement possesses openings for the through-passage of air from the surrounding area.
Claim 15
Dependent Claim
19 words
The combination as defined in claim 12, further including steam generator means operatively connected with said injection nozzle means.
Claim 16
Dependent Claim
19 words
The combination as defined in claim 12, further including water reservoir means operatively connected with said injection nozzle means.
Claim 17
Dependent Claim
15 words
The combination as defined in claim 1, wherein said connecting arrangement additionally incorporates heating means.
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) | 1977-07-01 | 1977-12-31 | 1978-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-01 | 1981-12-31 | 1982-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-01 | 1985-12-31 | 1986-07-02 | $7700.00 | Window Closed / Lapsed |