US3765284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic conveying device controlled by an electronic programmer for machines for working stacked sheet material
Assignee: FMI Mecfond Aziende Meccaniche Riunite SpA
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Filing: 1971-12-23
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Granted: 1973-10-16
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Expires: 1991-12-23
Abstract
Abstract A pneumatic sheet or strip conveying device controlled by an electronic programmer, for machines for working stacked sheet material, particularly for automatic presses for manufacturing container covers and bottoms, wherein said pneumatic device consists of three pneumatic cylinders, of which the first cylinder is provided for taking a sheet or strip from the material stack, the second cylinder is provided for bringing said sheets onto mechanical means conveying the sheet under a working tool, and a third pneumatic cylinder for expelling the worked sheet, said pneumatic cylinders being controlled by electronic programmer means.
Inventors
- 👤 G Maiorino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:17
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/07; B; B21; B21D; B21D28/00; B21D28/02; B21D28/06; B21D43/00; B21D43/02; Y; Y10; Y10T; Y10T83/00; Y10T83/162; Y10T83/173; Y10T83/444; Y10T83/4637; Y10T83/464; Y10T83/4642
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
120 words
In a machine for working strip material collected in a stack, having tool means and mechanical means for feeding the strip to be worked to and mechanical means for rEmoving the worked strips from the tool means; the improvement comprising a first pneumatic cylinder, a plurality of suction cups for taking the strip from said stack controlled by said first pneumatic cylinder, a second pneumatic cylinder for transferring said strip to be worked onto said mechanical means and feeding it under said tool means, a third pneumatic cylinder controlling said mechanical means for removing the worked strip from said tool means, and electronic programmer means operatively connected with said pneumatic cylinders for sequentially controlling said first, second and third cylinder.
Claim 2
Dependent Claim
120 words
In a machine for working strip material collected in a stack, having tool means and mechanical means for feeding the strip to be worked to and mechanical means for rEmoving the worked strips from the tool means; the improvement comprising a first pneumatic cylinder, a plurality of suction cups for taking the strip from said stack controlled by said first pneumatic cylinder, a second pneumatic cylinder for transferring said strip to be worked onto said mechanical means and feeding it under said tool means, a third pneumatic cylinder controlling said mechanical means for removing the worked strip from said tool means, and electronic programmer means operatively connected with said pneumatic cylinders for sequentially controlling said first, second and third cylinder.
Claim 3
Dependent Claim
58 words
A machine as claimed in claim 1 wherein said electronic programmer means comprises an electronic circuit controlled by a blade fixed to said tool means to follow the movement of the tool means and to pass through shoes of an electromagnetic transducer to generate signal pulses controlling the electronic circuit, and electro-valve means to actuate said pneumatic cylinders.
Claim 4
Dependent Claim
37 words
A machine as claimed in claim 2, wherein said electro-valve means comprises a first electro-valve controlling said first pneumatic cylinder, a second electro-valve controlling said second pneumatic cylinder and a third electro-valve controlling said third pneumatic cylinder.
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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |