Patent US3557797A successfully refreshed from Google Patents.
US3557797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous rod cigarette-making machines and control systems therefor
Assignee: Molins Machine Co Ltd
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Filing: 1969-02-14
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Granted: 1971-01-26
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Expires: 1989-02-14
Abstract
Abstract Electrical control circuitry for a cigarette-making machine of the continuous rod type including a solenoid for moving a seam heater element into operative position, after a predetermined delay activating another solenoid to actuate a rod breaking mechanism, and after a further delay activating a detector device which stops the machine whenever a portion of the cigarette rod which has passed the heating means is not properly sealed.
Inventors
- 👤 David Theodore Nels Williamson
- 👤 Michael Aren Pym
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:46
CPC Classifications
A; A24; A24C; A24C5/00; A24C5/14; A24C5/31; Y; Y10; Y10S; Y10S131/00; Y10S131/906
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
175 words
A cigarette-making machine of the continuous rod type, comprising; means for forming a tobacco filler, means for applying a paper strip to said filler and folding said strip to enclose the filler therein with an overlapped seam to form a cigarette rod, means for continuously applying adhesive to one longitudinal edge portion of said paper strip before completion of folding thereof, means for heating the seam, said adhesive applying means and said heating means together serving to seal the rod but each being independently movable between inoperative and operative positions, means for breaking the rod leaving said heating means, means for cutting the rod into cigarette lengths, means to stop the machine whenever a portion of the cigarette rod which has passed the heating means is not properly sealed, and control means operable to move the heating means into operative position, a predetermined time thereafter to cause Operation of the rod breaking means, and a further predetermined time after operation of the rod breaking means to bring said means to stop the machine into operation.
Claim 2
Dependent Claim
175 words
A cigarette-making machine of the continuous rod type, comprising; means for forming a tobacco filler, means for applying a paper strip to said filler and folding said strip to enclose the filler therein with an overlapped seam to form a cigarette rod, means for continuously applying adhesive to one longitudinal edge portion of said paper strip before completion of folding thereof, means for heating the seam, said adhesive applying means and said heating means together serving to seal the rod but each being independently movable between inoperative and operative positions, means for breaking the rod leaving said heating means, means for cutting the rod into cigarette lengths, means to stop the machine whenever a portion of the cigarette rod which has passed the heating means is not properly sealed, and control means operable to move the heating means into operative position, a predetermined time thereafter to cause Operation of the rod breaking means, and a further predetermined time after operation of the rod breaking means to bring said means to stop the machine into operation.
Claim 3
Dependent Claim
27 words
A machine as claimed in claim 1 in which said machine stopping means includes a detector device for individual cigarettes at the delivery end of the machine.
Claim 4
Dependent Claim
17 words
A machine as claimed in claim 1, in which the control means comprises electrical means including solenoids.
Claim 5
Dependent Claim
59 words
Claim 4 a machine as claimed in claim 3 in which a solenoid is arranged to operate the rod breaking means and is controlled by a relay having a capacitor in shunt with its coil, means being provided for applying a voltage to the relay coil via a series resistor as the heating means is brought into operative position.
Claim 6
Dependent Claim
39 words
A machine as claimed in claim 4, in which the voltage applying means includes a cam movable with the heating means and switch means arranged to be closed by said cam whenever the heating means is in operative position.
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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |