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5797317 |
Universal chuck for holding plates of various sizes
This invention discloses an universal chuck for holding plates, including a base having a longitudinal axis and a transverse axis, a lower carriage movable on the base along said longitudinal axis,...
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5794528 |
Device for holding tensioned sheet-like material and process for tensioning said material
A sheet material, especially fabric, is tensioned in a stretching frame made up of frame sections which have grooves open at the surface at which the fabric or sheet material is applied and...
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5791243 |
Cartridge squeegee head with engagement locking mechanism
A cartridge squeegee head for solder paste machines. A squeegee blade is fixed to a coupling block. The coupling block is characterized by a coupling slot formed therein. The coupling block pivots...
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5775221 |
Printing machine
A printing machine has a box frame rotatably holding an attachment arm to which various size workpiece supporting means may be connected. A series of screen frames are secured over a workpiece...
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5775220 |
Method for multiple frame screen printing
A method for screen printing is provided where multiple screen frames used to facilitate multiple images are carried in fixed registration for an entire screen printing process. The method includes...
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5771801 |
Front head for carousel screen printing machine
An apparatus for securing a screen printing frame to a printing machine for screen printing, the apparatus has a retainer for the screen printing frame and a mounting head carried by the printing...
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5765476 |
Device for setup of off-contact in screen printing machines
An off-contact setup device is provided for a screen printing type machine. The setup device includes a frame that releasably clamps onto a levelled image pallet of the screen printing machine. The...
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5765477 |
Method and device for perforating framed stencil sheet with color information mark
In a method or a device for perforating a framed stencil sheet having a frame and a stencil sheet supported by the frame such that at least one sort of primary color image information is made by...
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5755157 |
Solder paste stencil printer
A solder paste stencil printing apparatus in which a stencil plate having a porous figure printing area may be used for single component solder paste application. The printing operation is...
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5752441 |
Method of manufacturing a plurality of annular shaped silk screen members
Silk-screens of annular-shape are provided for the silk-screen printing of halftones on compact discs. The silk-screens are rotatably provided in a carrier so that the angle at which moire can be...
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5752446 |
Alignment systems
Apparatus is provided for aligning two objects (1,2), such as a board and screen in a screen printer, each having at least one reference mark (6a,7a) on a surface thereof, whereby alignment of the...
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5743182 |
Stencil printing method and apparatus
A stencil printing apparatus is provided, which comprises a pressure chamber having a first wall and a second wall both of which face each other and are built up together via a frame-like packing,...
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5740734 |
Drum and stencil for a stencil printer
A drum, stencil and ink holding member for a stencil printer are disclosed. The stencil is made up of a porous substrate and a thermoplastic resin film. The side of the substrate contacting the...
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5740730 |
Apparatus for depositing solder and adhesive materials onto a printed circuit board
An method and apparatus for forming adhesive and solder pads on a printed circuit board to surface mount electrical components to the board. In accordance with an embodiment of the invention, a...
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5732624 |
Annular shaped silk screen member for silk screen printing halftones
Silk-screens of annular-shape are provided for the silk-screen printing of halftones on compact discs. The silk-screens are rotatably provided in a carrier so that the angle at which moire can be...
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5727461 |
Method of forming fiducials, and stencils containing such fiducials
A method of forming a fiducial in a stencil for screen printing and the stencil so formed is described. A target fiducial thru-hole of a first size is formed in the stencil, the surface of the...
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5724889 |
Stencil shifter
A stencil shifter (800) for positioning a differential thickness stencil stencil (14' integrally formed from two sieves (601 and 602) having different thicknesses (701 and 702) for a two-stage...
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5720220 |
Stencil printing apparatus
A stencil printing apparatus includes a base on which a original is set during a perforating operation and an item to be printed is set during a printing operation, a pressing member pivotaly...
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5713278 |
Plate-making method and apparatus for stencil sheet
A stencil sheet having a solvent-soluble resin layer is made by a plate-making apparatus, which is formed of a holding and moving device to hold and move the stencil sheet, a solvent supply device...
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5713277 |
Combination print head and pivotable print screen holder and method for improved operator safety during screen maintenance
A multiple print head, automated screen printing machine is described with improvements for inspecting and cleaning a print screen. The print screen and its frame are locked securely in position...
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5704286 |
Screen printing apparatus
A screen printing apparatus for printing a printing material to the front surface of a work that has a protrusion portion, comprising a stage for mounting the work, a screen frame formed on the...
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5701816 |
Heat-sensitive type mimeographic screen forming apparatus
A heat-sensitive type mimeographic screen forming apparatus includes: a long thermal head which covers a screen fabric spread on a screen fabric frame in its entirety; and a platen which is brought...
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5699732 |
Combination stretch screen and its production method
This invention is aimed at achieving a high-tension combination stretch screen. First, a print screen-mesh is bonded to a supporting screen-mesh at a bonding area. Then a portion of the supporting...
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5695109 |
Solder paste inter-layer alignment apparatus for area-array on-board rework
An integrated circuit (IC) package includes solder paste inter-layer and alignment apparatus 100 for applying and aligning solder paste 150 with corresponding solder pads 160 on the IC package...
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5692438 |
Card printing method, original positioning holder, and card printing paper
In card printing, to allow registration and positioning of card-like originals C when making a master plate by duplication to be accomplished both easily and accurately, the card-like originals are...
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5678481 |
Method of screen printing a pattern on an edge of a glass substrate
A print pattern is formed on a glass plate 1 by using a screen plate in which a second ink-permeable region 7 having a lower ink-permeating rate than a first ink-permeable region 4 is formed in a...
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5676052 |
Apparatus and method for tensioning a silk screen
An apparatus and method for tensioning a screen on a roller frame are disclosed. The apparatus includes a fixture having a plurality of clamp mechanisms for releasably securing the frame to define...
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5671672 |
Image printer
An image printing apparatus (10) comprises a frame (11) to be fixed by suction cups (15) upon a surface (25) to receive an image. The frame (11) defines a space to receive a screen print frame...
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5669970 |
Stencil apparatus for applying solder paste
A stencil for applying solder paste in a desired pattern for mounting electronic components on a surface of a circuit board, said stencil including a sheet having holes therethrough in a pattern...
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5669300 |
Process for perforating a solvent soluble stencil
A stencil printing sheet and a process for perforating the same. The stencil printing sheet is perforated by using a solvent-soluble resin in the range of 0.1-100 μm in thickness with a solvent...
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5655445 |
Carrier for a screen printing stencil
The carrier of the screen printing stencil is mounted onto an auxiliary frame which holds the entire structure stable in the shape of a plate. Due to specific design of the longitudinal profile...
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5647273 |
Stamp cartridge for use in a stamp unit
A stamp cartridge including a frame, an ink-permeated body, and a heat-sensitive stencil sheet. The frame has a plate and a peripheral wall together defining a first recess to a first side of the...
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5648189 |
Pin registration for screen printing
A pin registration bar aligning an image film to a screen mesh of a screen printing frame. The pin registration bar has a bar and a plate, The bar has an upper surface, a lower surface, and a pair...
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5638750 |
Printing apparatus
A printing apparatus is provided, which comprises a platform, pressing member which is pivotably supported on the platform and capable of carrying a stencil on a side facing the platform, and a...
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5609102 |
Fixture for holding a compact disc to be silk-screen printed
A fixture is provided for the holding of a compact disc on a transport member for transportation of the disc to one or more work stations such as a silk-screen printing station. The fixture has a...
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5606912 |
Screen printing tensioning device
A tensioning device for mounting a stencil foil in a fixed position in a first plane and having tensioning means. The tensioning means including a tensioning member and a lever, the tensioning...
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5606911 |
Screen printing stencil
A stencil which is adapted for mounting in tension on a mount having peripheral regions which define a body portion for receiving the stencil pattern and which are held in the mount for creating...
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5598776 |
Screen printing apparatus
A screen printing apparatus has a base frame 1 in the shape of a convex-rectangle, four, tensioning rods 2 attached a printing screen fabric 5, four pair of collars 4 and four pair of bearing...
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5596925 |
Method and device for pressure type stencil printing
Provided is a method and device for stencil printing which can readily achieve a stencil printing of a prescribed even density even when the surface area of the printing surface is great, and which...
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5593080 |
Mask for printing solder paste
A mask for printing solder paste includes a mask plate, and first mask holes which are formed in the mask plate and have a first size, and second mask holes which are formed in the mask plate and...
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5581918 |
Apparatus for stretching out a cloth portion
In an apparatus for stretching out a rectangular gauze material or the like cloth portion in a printing frame with tensioning devices which are arranged at the sides thereof and in which the cloth...
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5582104 |
Apparatus and process for screen printing
An apparatus and method for vacuum printing inks onto a substrate in which the printing screen is mounted in a pivotable screen holder. The substrate is positioned on a printing platen and adhered...
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5579689 |
Printing drum of rotary stencil printer having a predetermined allowance for bulging out
A printing drum for a rotary stencil printer having a sidewall in the form of a flexible perforated sheet. In order to allow for a bulging out deformation of the sidewall by an internal press...
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5562030 |
Process and apparatus for simultaneously preparing a plurality of silk screens
An apparatus and process for the manufacture of silk-screens is provided for use in the printing of halftones, e.g. in a four color printing process. The angle at which the mesh of a silk-screen...
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5522314 |
Method for accurately positioning border strips on fabric
A method of accurately positioning border strips on fabric as used in screen printing. The method involves stretching fabric to a prescribed tension and attaching border strips in predetermined...
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5522148 |
Roller frame alignment bracket
A registration/adapter apparatus for aligning a priming screen with an image platform. A screen tensioning and printing frame has four tensioning rollers coupled together by comer members. The...
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5514462 |
Polyester film comprising a mixture of polyesters for highly heat sensitive original sheet for stencil printing
A heat sensitive original sheet for stencil printing made of a laminate of a paper sheet and a biaxially oriented polyester film having a melting point of 150° to 240°, a thickness of 0.2 to 3...
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5503068 |
Retractable pallet attachment for screen printing
A retractable registration apparatus aligns a printing screen with an image platform. The apparatus has a pair of arms. Each arm extends along a longitudinal axis and has at least two sections with...
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5501146 |
Cylindrical drum assembly including a stencil sheet for use with a stencil printing machine
In a cylindrical drum 1 for stencil printing which consists of a porous cylindrical plate 2 and a screen layer 3, in which a stencil sheet is attached to the outer surface of the screen layer...
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5490456 |
Automated multiple station cap printing apparatus
A multiple station automated cap printer includes a plurality of printing heads mounted in fixed circumferentially spaced relationship to one another and are vertically movable between a raised...
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