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US3592132A Expired / Lapsed US ⏱️ 0.0 years remaining

Rotary foraminous printing machine with magnetically attracted internal inker

Assignee: Individual
•
Filing: 1968-11-27
•
Granted: 1971-07-13
•
Expires: 1988-11-27
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Abstract

Abstract The specification describes a foraminous printing apparatus in which a squeegee inside a screen or stencil cylinder is flexible in the direction of its length and is adapted to be attracted by a magnet placed under the screen cylinder.

Inventors

  • 👤 Erich Weber

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 23:42
CPC Classifications
B; B41; B41F; B41F15/00; B41F15/14; B41F15/40; B41F15/42; B41F15/426

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 218 words
A foraminous printing machine comprising a horizontal rotary foraminous cylinder, a horizontal rotary roller whose axis is parallel to that of the cylinder, and which is adjacent to the cylinder for holding a sheet to be printed against the cylinder for printing, a carrier for guiding sheets to be printed between the cylinder and the roller, the roller serving to support the carrier in contiguous relation with the cylinder, a squeegee blade which is held inside the cylinder in a position adjacent to the roller and in pressure contact with the inside of the cylinder, the squeegee blade being flexible along its whole length for flexure in a radial plane in relation to the cylinder and comprising material which can be magnetically attracted, magnet means in the roller for attracting the squeegee, at least one movable lever arm carrying at one free end the squeegee blade, means carrying the other end of the lever arm in a stationary fashion inside the cylinder behind the squeegee blade with reference to the direction of rotation of the cylinder, the squeegee blade having a V-shaped ridge that makes substantially linear contact with the inner surface of the cylinder, a leading side of the blade with reference to the direction of rotation of the cylinder making an acute angle with the carrier.
Claim 2
Dependent Claim 218 words
A foraminous printing machine comprising a horizontal rotary foraminous cylinder, a horizontal rotary roller whose axis is parallel to that of the cylinder, and which is adjacent to the cylinder for holding a sheet to be printed against the cylinder for printing, a carrier for guiding sheets to be printed between the cylinder and the roller, the roller serving to support the carrier in contiguous relation with the cylinder, a squeegee blade which is held inside the cylinder in a position adjacent to the roller and in pressure contact with the inside of the cylinder, the squeegee blade being flexible along its whole length for flexure in a radial plane in relation to the cylinder and comprising material which can be magnetically attracted, magnet means in the roller for attracting the squeegee, at least one movable lever arm carrying at one free end the squeegee blade, means carrying the other end of the lever arm in a stationary fashion inside the cylinder behind the squeegee blade with reference to the direction of rotation of the cylinder, the squeegee blade having a V-shaped ridge that makes substantially linear contact with the inner surface of the cylinder, a leading side of the blade with reference to the direction of rotation of the cylinder making an acute angle with the carrier.
Claim 3
Dependent Claim 39 words
A printing machine in accordance with claim 1 in which The squeegee blade is made of sheet material which is angled in radial section so as to define an apical ridge which engages the inside of the foraminous cylinder.
Claim 4
Dependent Claim 54 words
A printing machine in accordance with claim 1 in which the squeegee blade comprises elastomeric abrasion-resistant material which has a V-shaped radial section so as to define an apical ridge engaging the cylinder, and magnetic material forming part of the squeegee blade and extending with the squeegee blade along the interior of the cylinder.
Claim 5
Dependent Claim 19 words
A printing machine in accordance with claim 3 in which the magnetic material is divided up transversely into segments.
Claim 6
Dependent Claim 65 words
An apparatus in accordance with claim 1 comprising a shaft in the cylinder, holding arm means in the cylinder extending away from the axis of the cylinder and carried by the shaft, and strip means which extends against the direction of rotation of the cylinder from the holding means to the squeegee blade and is fixed to the arm means and to the squeegee blade.
Claim 7
Dependent Claim 36 words
An apparatus in accordance with claim 5 in which the strip spring means is in the form of a single resilient sheet extending in an axial direction along substantially the whole length of the squeegee blade.
Claim 8
Dependent Claim 16 words
An apparatus in accordance with claim 5 in which the strip means includes several metal strips.
Claim 9
Dependent Claim 24 words
An apparatus in accordance with claim 1 in which the magnetic means is in the form of an elongated assembly which carries the roller.
Claim 10
Dependent Claim 25 words
An apparatus in accordance with claim 8 in which the magnetic means comprises a row of electromagnets with their magnetic axes directed towards the cylinder.

References Cited (Backward Citations)

US1624538A Cited
US2169933A Cited
US2419695A Cited
US2445140A Cited
US2691343A Cited
US3196784A Cited
US3089175A Cited
US3216349A Cited
DE1267231B Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-07-12 1975-01-11 1975-07-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-07-12 1979-01-11 1979-07-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-07-12 1983-01-11 1983-07-13 $7700.00 Window Closed / Lapsed

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