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| Number | Title | Issue Date |
| 4041861 | Screen printing frame with floating stretch-clamps On each of its sides, the fabric or mesh of a printing screen is clamped by clamping means which can be drawn outwardly to stretch the fabric. So that the stretching of the fabric in one direction will not be hampered by the clamping means for the other d... | 08/16/1977 |
| 4039396 | Method for manufacturing a seamless cylindrical screen gauze Method for manufacturing a seamless cylindrical screen gauze by a metalizing process, in which one starts from a fibre fleece which is temporarily adhered to a supporting surface and subjected to a galvanoplastic operation.... | 08/02/1977 |
| 4033831 | Method of making a bi-metal screen for thick film fabrication A bi-metal screen for the fabrication of precisely di-mentioned thick film elements and a method of screen fabrication. The bi-metal screen comprises a first metal screen which provides a web or mesh with accurately placed openings for holding a spacer sh... | 07/05/1977 |
| 4028230 | Vibratory separator screen and method of manufacture An improved vibratory separator screen in which a wire mesh having least a first pair of opposed end portions each comprising a reinforced edge strip tensioned to a surrounding frame comprises a reinforcing spline member located adjacent each of the oppos... | 06/07/1977 |
| 4023971 | Film and method for forming intaglio printing plates A method of making a printing plate for intaglio printing having text characters and/or other indicia recessed therein for receiving printing ink which has a plurality of relatively thin barriers separating the text characters into a plurality of ink well... | 05/17/1977 |
| 4024340 | Circuit for an electronic stencil cutting machine Apparatus for electrically burning information from an original document into stencil material comprising a stylus for applying electrical pulses to the material and an electrical circuit comprising an optical sensor for scanning information on the origin... | 05/17/1977 |
| 4021605 | Electronic circuit for electronic stencil cutter Stencil cutting apparatus for electrically burning information from an original document into a stencil material having non-linear burning characteristics by the application of electrical pulses to a stylus contacting the stencil material positioned on a ... | 05/03/1977 |
| 4012257 | Method of producing a gravure printing surface utilizing a continuous and screened negative A method of producing gravure printing surfaces is disclosed. The method utilizes a separately produced screened negative made on orthochromatic film and a continuous tone negative. Both negatives are superimposed to produce a positive with variable size ... | 03/15/1977 |
| 3987725 | Process of screen manufacture and use for coding credit cards A process for forming credit cards in which encoded information is screen printed on a plastic sheet. In the process, a photographic film is placed in contact with a surface having film exposure means positioned with respect to the surface. Locating means... | 10/26/1976 |
| 3988196 | Apparatus for transferring an oriented array of articles An oriented array of small, fragile electrical devices such as beam lead transistors or integrated circuits, partially embedded in wax, are removed from the wax and transferred to a releasable mounting without disrupting the orientation of the devices. Th... | 10/26/1976 |
| 3981237 | Plastic rotary printing screens construction method therefor Plastic screens having the bending modulus, thinness, toughness, strength and chemical resistance which are suitable for use in rotary screen printing processes, are described. Methods for precision fabrication of such plastic rotary printing screens, hav... | 09/21/1976 |
| 3964385 | Unitary device and method for screen manufacture and printing For screen printing, the screen is manufactured and used for printing in a single box. The screen material is coated with a delayed light sensitive emulsion, dried and assembled with a film opaque positive on the outer surface of a glass plate forming one... | 06/22/1976 |
| 3951060 | Process for preparing waterless lithographic masters A process for preparing a waterless lithographic printing master is provided. A suitable substrate which is preferably ink accepting is coated with a silicone which is curable at low or ambient temperature and which contains in addition to its own catalys... | 04/20/1976 |
| 3949117 | Image intensification A process for enhancing the optical density of images and the product resulting therefrom. The process comprises forming on a shrinkable substrate an image defined by a plurality of particles and having substantially less than an optimum optical density, ... | 04/06/1976 |
| 3934503 | Stencil screens A blank for forming a stencil screen for silk screen or electrostatic stencil printing is disclosed. The screen includes a resilient, high tensile strength, porous substrate such as a monofilamentary nylon or stainless steel 200-mesh screen. A light radia... | 01/27/1976 |
| 3931030 | Etching composition for etching nickel screen rolls or plates Delicate and high grade nickel screen rolls or plates for printing are prepared by using corrosion-resistant mother roll and a specified powderless etching composition comprising HNO.sub.3, H.sub.2 O.sub.2, surfactants and an organic solvent.... | 01/06/1976 |
